【周周有招】新教材同步尖子班讲义第15讲 Unit2 Wildlife Protection（数字方向与措施主体 生态保护语篇的听力预判与词块调用）-2026-2027学年高中英语人教版必修第二册（教师版+学生版）

学科网周周有招·高中英语同步系列尖子班精品讲义 2026秋·人教版必修二·高一上Unit 2 Wildlife Protection 第15讲 数字方向与措施主体 （教师版） ——生态保护语篇的听力预判与词块调用 课型：同步精讲 + 听力实战 课时：2课时（120分钟） 使用对象：高一年级尖子班 目录 一、 课时安排与学习目标 1 二、 听前导入：先给耳朵装一条链 2 三、 语义链：物种—威胁—措施—成效 3 四、 ★词块：挂在链上记 4 五、 听力三抓：数字方向、措施主体、态度转折 10 六、 典例精析 12 七、 分层检测 14 八、 高频易错速查表 18 九、 课堂小结 19 十、 课后巩固（独立作业） 20 1、 课时安排与学习目标 本讲安排 120 分钟、2 课时连排。第 1 课时完成听前导入、语义链建模、16 个★词的链上归位与搭配限制（约 60 分钟）；第 2 课时完成听力三抓实战、典例精析、分层检测与课堂小结（约 60 分钟）。课后巩固另计，不占用课时。 （1） 课时安排 时段 内容 时长 第1课时 听前导入（3秒反应）→ 语义链建模 → ★词块链上归位 → 六个高频词块与易混辨析 60分钟 第2课时 听力三抓 → 典例精析（藏羚语篇 + 护鸟对话）→ 数字方向微练 → 分层检测 → 课堂小结 60分钟 课后 语填10空 + 阅读4题 + 完形15空 + 写作1篇，独立作业30分钟 30分钟 （2） 学习目标 维度 本讲目标 语言能力 掌握 species、habitat、reserve、wildlife、endangered、extinction、hunt、illegal、threat、protect、measure、recover、remove、survive、volunteer、awareness 16 个词的音、形、义与搭配限制，做到听音能反应、见词能搭配、写作能调用。 学习能力 建立"物种—威胁—措施—成效"语义链，能在听力中顺着链预判信息走向，变逐词硬跟为定向接收。 思维品质 掌握听力三抓：数字方向（by / to）、措施主体（政府 / 志愿者 / 当地居民）、态度转折（but / however 之后通常为真实判断；若转折后仅补充新事实，则按内容判断）。 重点 ★词块的链上归位与搭配限制；听力数字方向与措施主体的同步记录。 难点 by / to 后接绝对值时的方向判断；"Only + 状语从句"置于句首引起的部分倒装（Only 修饰主语时不倒装）。 2、 听前导入：先给耳朵装一条链 （1） 3 秒反应 上课先做一个 3 秒反应。教师读一句，学生不翻书，听完立刻抢答"这句在讲什么"。 听辨材料： The population dropped by more than 50 percent. 多数学生能抓住 dropped，抓不准 by。drop 是"降"，by 才是"降了多少"的钥匙：dropped by more than 50 percent 是"降了五成以上"，dropped to 50 percent 才是"降到五成"。听力只放一遍，耳朵必须在听到的那一秒就把数值和方向一起记下来，没有第二遍给你慢慢想。 拓展对比（建议补充练习）： · The population dropped by 50,000.（减少了 5 万，by 后接差额） · The population dropped to 50,000.（减少到 5 万，to 后接终点） （2） 为什么先练这个 因为生态类听力材料的信息不是散着出现的。它有一条极稳的推进顺序：先说有什么物种，再说遇上什么威胁，接着讲人做了什么，最后交代成效如何。把这条链提前装进脑子，听的时候就不是逐词硬跟，而是"顺着链往前接"。听到物种名，耳朵已经在等威胁；听到数据，立刻判断这是威胁段还是成效段。 课堂落点：本讲不追求听懂每一个词，只追求"方向 + 数值 + 主体"三项同步落地。 3、 语义链：物种—威胁—措施—成效 生态类语篇和听力材料，段落推进基本都沿这四条线走。四条线各归其位，做题顺藤摸瓜。（说明：并非所有生态语篇都严格按四段推进，需灵活挂靠。） 语义链 线上词块 听力里落在哪儿 听到什么就往哪儿挂 物种 Tibetan antelopes; a herd of graceful animals; on the plains of Xizang, Xinjiang and Qinghai; habitat Watching them move slowly across the green grass, I'm struck by their beauty. 听到物种名 → 接下来多数是"威胁"或"措施" 威胁 hunt... illegally; valuable fur; make profits; habitats were becoming smaller; threats They were hunted, illegally, for their valuable fur. 听到数据 → 回挂"威胁"或"成效"，先判方向（降还是升） 措施 place... under national protection; watch over day and night; keep safe from attacks; bridges and gates were added Zhaxi and other volunteers watched over the antelopes day and night. 听到措施主体 → 判是政府、志愿者还是当地居民 成效 the population has recovered; downgrade from Endangered to Near Threatened; exist in harmony with nature The measures were effective. The population has recovered. 听到 however / but → 准备接"成效之后的转折" 锚点句：背单词要挂在听过的句子上 链上右列是"锚点句"。背单词要把词挂回句子——挂在听过的句子上，比挂在阅读句子上更能提速。听力里听不出词，九成不是不认识，是认识但反应慢。 即时练 把 The animals are in danger. We must protect them. 改写成含具体物种、威胁、数据的句子。 参考句： The Tibetan antelopes were hunted illegally for their valuable fur, and the population dropped by more than 50 percent. The government placed them under national protection. 判断一个词是否真掌握，标准只有一条：能不能用它写出带具体信息的句子。 4、 ★词块：挂在链上记 ★词要求"见词能搭配、听音能反应、写作能调用"。下表按语义链归位，不按字母排。 词 变形 一个能听出来的搭配 易错处 高考落点 species 单复数同形 save this species from extinction a species 谓语单数；these species 谓语复数 语法填空、阅读 habitat habitats habitats were becoming smaller 可数，常复数 阅读、写作 reserve reserves the Changtang National Nature Reserve 专有名词大写 听力、阅读 wildlife 不可数 protect wildlife; a threat to wildlife 不加 -s 写作 endangered endanger → endangered endangered species; the endangered species list 作定语修饰物种 语法填空、阅读 extinction extinct → extinction save... from extinction; face extinction 前无冠词 语法填空、写作 hunt hunted hunt... illegally; shooting antelopes 过去式 hunted 听力、阅读 illegal illegally adv. illegal hunting; hunted illegally 副词修饰动词；hunting 为不可数名词 语法填空 threat threaten v. the threats have not yet disappeared threaten to do sth 阅读、听力 protect protection n. protect... from; under national protection protect 的宾语是受保护对象 语法填空、写作 measure measures take measures; the measures were effective 可数，常复数 写作 recover recovery n. the population has recovered 不及物，不直接跟宾语 语法填空 remove removal n. remove... from the endangered species list remove A from B 阅读 survive survival n. help them survive 不及物 语法填空 volunteer voluntary adj. Zhaxi and other volunteers; volunteer to do volunteer to do sth 听力、写作 awareness aware adj. raise awareness of raise awareness of sth 写作 （1） 六个高频词块：搭配限制与调用 下面六个词块是本讲的"承重件"。每个都按"例句 → 限制 → 错句 → 即时练"四步走一遍，练完就能用。即时练一律按高考语法填空作答：括号内单词变正确形式，或填入一个适当的词。 1. endangered species 濒危物种 例：The Tibetan antelope was downgraded from Endangered to Near Threatened on the IUCN Red List in June 2021. 限制：species 单复数同形。a species / this species 后谓语用单数；these species / many species 后谓语用复数。不要写成 specie，也不在 species 后加 -s。 错句：Many species is endangered.（many species 后谓语用复数 are） 即时练：Many species ______ (be) at risk of extinction. 【答案】are 【解析】many species 为复数意义，谓语用 are；species 单复数同形，不加 -s。 2. under national protection 受国家保护 例：In order to save this species from extinction, the Chinese government placed it under national protection. 限制：under protection 是固定搭配，介词不换成 in / with；place... under protection 的宾语是被保护对象。 错句：The government placed the antelope in national protection.（介词应为 under） 即时练：The reserve was placed ______ national protection.（填入一个适当的词） 【答案】under 【解析】under national protection 为固定搭配，介词用 under，不换 in / with。 3. watch over... day and night 日夜守护 例：Zhaxi and other volunteers watched over the antelopes day and night. 限制：watch over 含"警戒、看守"义，典型宾语是区域、种群或需要守护的人。照料伤病个体通常用 look after / care for；二者在"日常护理"语境下不互换。（说明：watch over 也可用于个体，不宜绝对化。） 错句：Volunteers looked after the antelopes day and night to keep them safe from attacks.（语境偏"警戒守护"，watched over 更准） 即时练：The volunteers ______ the injured bird until it could fly again.（填入一个适当的词） 【答案】looked after 【解析】宾语是具体的伤病个体，用 look after；语境为过去，用过去式 looked after。 4. keep... safe from 使……免于 例：... to keep them safe from attacks. 限制：from 后常接危险源名词（attacks、cars、trains）。接动名词多用于被动意义，如 keep them safe from being attacked。结构为 keep + 宾语 + 形容词 + from。 错句：The fence keeps the antelopes safe for wolves.（"免于危险源"用 from，不用 for） 即时练：Laws keep the animals safe ______ attacks.（填入一个适当的词） 【答案】from 【解析】keep... safe from 为固定结构，from 后接危险源 attacks。 5. save... from extinction 使……免于灭绝 例：In order to save this species from extinction, the Chinese government placed it under national protection. 限制：extinction 前无冠词；save... from 后常接"坏结果"名词。接动作用动名词被动式，如 save him from being killed。 错句：We must save the species from extinct.（from 后接名词 extinction） 即时练：In order to save this species ______ extinction, the government took measures.（填入一个适当的词） 【答案】from 【解析】save... from 后接名词或动名词，extinction 为名词。 6. exist in harmony with nature 与自然和谐共处 例：Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 限制：Only + 状语从句置于句首引起部分倒装，can 提到主语 we 之前。这是写作可直接引用的句式。（补充：Only 修饰主语时不倒装，如 Only he can help us。） 错句：Only when we learn to exist in harmony with nature we can stop being a threat.（未倒装） 即时练：Only when the hunt was banned ______ (do) the elephants return to these hills. 【答案】did 【解析】Only 修饰状语从句并置于句首，主句部分倒装；从句为过去时，助动词用 did。 （2） 易混辨析（六组） 下面六组是考场上最容易用错的词。每组先判断错句错在哪，再填正句，最后用一道语法填空落地（括号词变形或填入一个适当的词）。先自己动手，再看答案与解析。 第一组 die out / die away / die off 错句：The sound of the wind died out at midnight. die out 的主语须是物种、种群、习俗这类可整体消失的群体；声音、风、光线渐弱用 die away；群体相继死亡用 die off。 正句：The sound of the wind died away at midnight. / Without protection, this species may die out. 即时练：Without protection, this species may die ______.（填入一个适当的词） 【答案】out 【解析】主语为物种，表"灭绝"用 die out；die away 指声音渐弱，die off 指群体相继死亡。 第二组 recover / restore 错句：The government restored the antelope population. restore 强调人为修复受损对象，常接 habitat / forest / building / order，或 restore the population to 70,000。表"数量自行回升"用不及物的 recover。 正句：The antelope population has recovered. Volunteers restored the damaged habitat. 即时练：The antelope population has ______ (recover) to over 70,000. 【答案】recovered 【解析】population 作主语，数量自行回升，recover 不及物，无被动。 第三组 protect... from / prevent... from 错句：The reserve protects illegal hunting in this area. protect 的宾语是受保护对象，不是要被阻止的行为；表"阻止某事发生"用 prevent / stop... from doing。 正句：The reserve protects the antelopes from illegal hunting. / Laws prevent people from hunting them. 即时练：Laws prevent people ______ hunting the antelopes.（填入一个适当的词） 【答案】from 【解析】prevent sb from doing 为固定结构。 第四组 threat / threaten 错句：The new mines threaten to the camels. threaten 是及物动词，直接接宾语，不加 to；名词 threat 后接 to。 正句：The new mines threaten the camels. / The new mines are a threat to the camels. 即时练：New mines are a ______ (threaten) to the camels. 【答案】threat 【解析】a 后接名词；threaten 的名词形式为 threat。 第五组 extinct / extinction / endangered 错句：The species is in danger of extinct. of 后接名词 extinction；extinct 是形容词；endangered 是形容词，表"濒危的"。 正句：The species is in danger of extinction. / The species is endangered. 即时练：The species is in danger of ______ (extinct). 【答案】extinction 【解析】in danger of 后接名词；extinct 是形容词，名词形式为 extinction。 第六组 raise / rise 错句：The number has raised to 900. raise 是及物动词，后接宾语；rise 是不及物动词，无被动，过去分词 risen。 正句：The number has risen to 900. / They raised awareness of wildlife protection. 即时练：The number of camels has ______ (rise) to around 900. 【答案】risen 【解析】the number 作主语通常视为单数，用不及物 rise 的现在完成时 has risen。（说明：population / the number 作整体时单数，作"部分人口/动物"时可复数，高中语境下通常按单数处理。） 5、 听力三抓：数字方向、措施主体、态度转折 （1） 抓数字：方向比数值更要命 drop by 50 percent 是"降了 50%"，剩余是原数 50%；drop to 50 percent 是"降到原数的 50%"——百分比语境下两者结果相同，但 by 后是减量、to 后是终点。 真正易混的是 by / to 后接绝对值： 表达式 含义 dropped by 50,000 减少了 5 万 dropped to 50,000 减少到 5 万 recovered to 70,000 恢复到 7 万 increased / rose by 70,000 增加了 7 万 判断抓手：by 后是"差额"，to 后是"终点"。听力只放一遍，by / to 和箭头方向必须一起记。 （2） 抓措施与主体 措施动词常是 set up、place... under protection、watch over、pass laws、raise awareness；主体常是 the government、volunteers、local people。"谁 + 做了什么"要一并记。把志愿者做的事安到政府头上，是最经典的偷换。 设计提醒：主体错位题必须确保听力原文明确交代动作主体，否则易变成过度推断。 （3） 抓态度 unfortunately、luckily、surprisingly 直接提示态度；but、however 之后通常是说话人的真实判断，态度题的答案几乎总在转折之后。 注意："转折后即真实判断"不能绝对化——有时转折后只是补充一个新事实，态度仍需按内容判断。 记笔记符号（供参考，学生可自创） · 数字后标方向：50%↓（下降）、70,000↑（回升） · 措施记"动词 + 对象"首字母：S/U reserve（set up a reserve）、U/N protection（under national protection） · 态度符号：worried = ↓，hopeful = ↑；but 处单独标注，其后内容重听 预判练：给首句，写出预测接下来会出现的 2 个词块 首句 预测会出现的词块 Tibetan antelopes are a species... habitat / endangered The population dropped by more than 50 percent... threat / illegal hunting The government has placed them under national protection... measures / watch over However, the threats have not yet disappeared... still worried / new mines Volunteers watch over the animals day and night... keep safe / raise awareness 6、 典例精析 （1） 听力理解（共 5 小题）★ 听下面一段材料，完成第 1—3 题。（材料由教师朗读，语速约 130 词/分钟） 听力材料 Good morning, everyone. I am from the school Wildlife Protection Club. Today I would like to tell you something about the Tibetan antelope. In the 1980s and 1990s, the antelope population dropped by more than 50 percent, because hunters were shooting them for their valuable fur. Luckily, things have changed since then. The government has placed the antelope under national protection and has set up more than 30 nature reserves. Volunteers like us watch over the animals day and night and try to raise awareness of wildlife protection among local people. As a result, the population has recovered to over 70,000. However, we should not stop here—the threats to the animal have not yet disappeared. 1. How much did the antelope population drop in the 1980s and 1990s? A. More than 50 percent. B. More than 15 percent. C. More than 70 percent. 【答案】A 【解析】原文 dropped by more than 50 percent，与 A 一致。B 项把 50 听成 15，专挑读音相近的数字设陷；C 项把后文 recovered to over 70,000 的数量信息混为下降幅度。 2. What has the government done to protect the antelope? A. It has moved the antelopes into zoos. B. It has allowed hunting again. C. It has set up more than 30 nature reserves. 【答案】C 【解析】修订后原文明确为政府主动行为 "The government has... set up more than 30 nature reserves"，选项 C 与其一致，主体判断严谨。A 与事实相反，B 无中生有。 3. What is the speaker's attitude towards the present situation? A. Proud but cautious. B. Disappointed. C. Indifferent. 【答案】A 【解析】Luckily 与 the population has recovered 先给积极面，However 之后 threats... have not yet disappeared 转谨慎。积极叠加谨慎，即 A 项 proud but cautious。 听下面一段对话，完成第 4—5 题。（材料由教师朗读，语速约 130 词/分钟） 听力材料（对话） W: Mr. Lee, I heard you just came back from the bird protection station. How long did you stay there? M: For two weeks. We counted the birds there—the number has dropped by about 20 percent since last year. W: That's sad. What caused it? M: Mainly the use of pesticides on nearby farms. Luckily, the local government has set up a new reserve, and volunteers will watch over the birds during the winter. W: What can we students do to help? M: You can raise money for the reserve and tell more people about the birds. But remember—don't get too close to them when you watch, because birds are easily frightened. 4. How much has the number of birds dropped since last year? A. By about 10 percent. B. By about 20 percent. C. By about 40 percent. 【答案】B 【解析】原文 the number has dropped by about 20 percent since last year，by 后接差额。A 项把 20 听成 10，C 项把 20 听成 40，均属数词近音设陷。 5. What does the man remind the students to do? A. Watch the birds from a distance. B. Feed the birds in the winter. C. Count the birds every week. 【答案】A 【解析】But remember 之后 don't get too close 才是真实提醒，选项 A 是"远距离观赏"的转述。B、C 是对话未提及的"好意建议"，无中生有；若把 but 之前的 raise money 当成提醒项，就落进了"转折前信息"的陷阱。 （2） 数字方向即时练（共 5 小题）★ 用 by 或 to 填空。 1. The population dropped ______ 50 percent. 【答案】by 2. The number recovered ______ 70,000. 【答案】to 3. The population dropped ______ 50,000. 【答案】by 4. The number rose ______ 900. 【答案】to 5. The species decreased ______ 30 percent. 【答案】by 【解析】第 1、3、5 题后接减量（差额），用 by；第 2、4 题后接终点值，用 to。判断时只问一句：后面这个数是"少了多少"还是"到了多少"。 7、 分层检测 （1） 基础层（基础）词块填空（共 10 小题，课堂完成）★ 用本讲词块填空，必要时变化形式：endangered species / save... from extinction / under national protection / watch over / raise awareness of / take effective measures / species / keep... safe from / only 倒装 / rise 1. The Tibetan antelope was once a(n) ______. 【答案】endangered species 2. In order to ______ this species ______ extinction, the government placed it ______ national protection. 【答案】save; from extinction; under national protection 【解析】三空构成"目的—手段"链条：save... from extinction 表目的，under national protection 表手段。 3. In the 1990s, volunteers ______ the antelopes day and night. 【答案】watched over 【解析】In the 1990s 是过去时间标志，用过去式 watched over。 4. They try to ______ wildlife protection among local people. 【答案】raise awareness of 5. The government has ______ to protect the animals. 【答案】taken effective measures 6. Many ______ are at risk of extinction. 【答案】species 【解析】many 后接复数名词，species 单复数同形。 7. The Tibetan antelope has long been ______ national protection. 【答案】under 【解析】under national protection 固定搭配。 8. Volunteers keep the newborn antelopes safe ______ wolves. 【答案】from 【解析】keep... safe from 固定结构，from 后接危险源。 9. Only when we protect their habitats ______ animals live in safety. 【答案】can 【解析】Only + 状语从句置于句首引起部分倒装。 10. Thanks to the new reserve, the number of Tibetan antelopes has ______ sharply. 【答案】risen 【解析】空前 has 提示现在完成时，the number of... 作主语通常视为单数，故填 risen。 （2） 提高层（提高）单句语法填空（共 8 小题，课堂完成）★★ 1. Their habitats were becoming smaller ______ more roads and railways spread into the plain.（填入一个适当的词） 【答案】as 【解析】前后表"随着"的渐进变化，as 表伴随性时间；although、so that、unless 与句间逻辑不符。 2. The measures were ______ (effect), and the population has recovered. 【答案】effective 【解析】be 动词后接形容词；effect 的形容词为 effective。后半句 population has recovered 即"措施有效"的证据。 3. Rangers ______ (watch over) the reserve all night to guard against poachers. 【答案】watched over 【解析】宾语是 reserve（区域），用 watch over 表"警戒巡护"；语境为过去，用过去式。 4. ______ (fortunate), the population began to rise again. 【答案】Fortunately 【解析】句首修饰全句用副词；前文明示威胁仍在，此处回升属"幸运"，用 Fortunately。 5. Only when the habitat was restored ______ (do) the species begin to recover. 【答案】did 【解析】Only + 状语从句置于句首，主句部分倒装；从句为过去时，助动词用 did。 6. The government has passed laws ______ (prevent) illegal hunting. 【答案】to prevent 【解析】不定式表目的；此处动词的宾语是 hunting（要阻止的行为）；若用 protect，宾语应是受保护对象（如 the species），与 illegal hunting 搭配不合逻辑，故用 prevent。 7. The number of wild elephants in the area ______ (rise) to nearly 400 today. 【答案】has risen 【解析】the number 作主语通常视为单数，rise 不及物无被动；时间延续至今，用现在完成时。 8. However, the threats ______ (not disappear) yet. 【答案】haven't disappeared 【解析】yet 提示现在完成时；threats 与 disappear 为主动关系，不用被动。 （3） 提高层（提高）语篇阅读（共 4 小题，课堂完成）★★ 阅读下面短文，完成第 1—4 题。 Passage The Chiru Comes Back On the high plains of Xizang, a quiet comeback is underway. In the 1990s, Tibetan antelopes, or chiru, were hunted illegally for their valuable underfur, and the population dropped by more than 50 percent. At its lowest, fewer than 70,000 animals remained. Things began to change when the Changtang National Nature Reserve was set up and the species was placed under national protection. More than 30 reserves now shelter the antelopes. Volunteers and rangers watch over them day and night, keeping them safe from attacks and from roads that cut across their migration routes. Bridges and gates have been added so that the animals can cross safely. The measures were effective. By 2026, the population has recovered to over 300,000, and it was downgraded from Endangered to Near Threatened on the IUCN Red List in June 2021. Yet the old hunters have not all disappeared. New mines and railways still threaten the habitat, and climate change is making the grass poorer. As one volunteer puts it, "The number is hopeful, but our job is not finished." The lesson travels well beyond Xizang. In Yunnan, the population of wild Asian elephants has risen from about 150 in the 1980s to nearly 400 today, thanks to corridors that link forests and to local people who warn drivers when elephants are near. Protecting wildlife is never a one-day job: it asks for patience, money, and the will to exist in harmony with nature. （说明：文中 70,000、300,000 等数量均为教学情境概数，用于语篇理解训练，不作为正式统计口径。） 1. What does the underlined word "comeback" in Paragraph 1 most probably mean? A. A return to a former state. B. A sudden disappearance. C. A long migration. D. A new species. 【答案】A 【解析】comeback 指种群数量从低谷回升，即"回到此前的状态"。B 与文意相反，C、D 无依据。 2. Why were "bridges and gates" added according to Paragraph 2? A. To keep tourists away. B. To mark the reserve border. C. To help antelopes cross roads safely. D. To count the population. 【答案】C 【解析】原文 so that the animals can cross safely，桥梁与通道是为让动物安全穿越公路。 3. What can we infer from the volunteer's words in Paragraph 3? A. He is satisfied with what has been done. B. He is worried but hopeful. C. He wants to give up. D. He doubts the data. 【答案】B 【解析】hopeful 对应 the number is hopeful，but 之后 our job is not finished 表担忧，故 worried but hopeful。 4. What is the author's main purpose in writing the last paragraph? A. To compare two species. B. To introduce a new park. C. To criticize local people. D. To call for long-term action. 【答案】D 【解析】末段 Protecting wildlife is never a one-day job 点明写作目的：呼吁长期行动。A 只是手段，非目的。 8、 高频易错速查表 判定信号 （听到/看到什么） 判什么 反例（何时不成立） drop / fall / decrease + 数字 by 后减量，to 后终点；箭头方向必须同步记录 rise to 900 中 to 后仍是终点；但 rise by 900 表增量 the government / volunteers / local people 先定主体，再定动作；主体错位即错项 set up reserves 属政府，watch over 多属志愿者，不可互换；主体判断须以原文明确交代为准 but / however / yet 真实态度与结论通常在转折之后 若转折后为新事实（However, the threats remain），态度仍为谨慎而非乐观 Only + 状语（从句）置于句首 主句须部分倒装：谓语动词（或助动词/情态动词）提到主语之前 Only 修饰主语时不倒装：Only he can help us protect... from 的宾语 宾语必须是"受保护对象" The reserve protects illegal hunting 错；应改为 prevents illegal hunting species / the number / population 作主语 species 单复数同形，谓语随意义；the number / population 通常视为单数 many species are；the number of species has risen。（说明：文中数量均为教学情境概数，非官方统计值。） 9、 课堂小结 一句口诀：听到物种等威胁，听到数据判方向，听到主体辨对错，听到 but 抓真章。 三个能力，课下各练一遍： · 方向感：每天听一段生态类材料（教材音频或外刊短讯），只记 "by / to + 数字"，其余允许放过。 · 主体感：听措施时强制写下"谁 + 动词"两个词，不听完不抬笔。 · 态度感：凡是 but / however / yet 出现，立刻在笔记上画一道竖线，其后内容单独框起来。 10、 课后巩固（独立作业） 本模块素材全部取自本讲未用过的真实语篇，独立完成约 30 分钟。 （1） 语法填空（共 10 小题）★★ 阅读下面短文，在空白处填入一个适当的词，或填入括号内所给词的正确形式。 The snow leopard (1)______ (be) one of the most mysterious big cats on Earth. For decades, its population kept (2)______ (drop) because hunters killed it for its thick fur, and its habitat became (3)______ (small) as roads and mines spread into the mountains. In 2013, the species (4)______ (face) a real risk of extinction, and many experts feared it might soon die (5)______ completely. In order to save the animal from (6)______ (die), the governments of twelve countries placed large areas (7)______ national protection. Volunteers were trained to watch (8)______ the leopards day and night, using camera traps instead of guns. As (9)______ result, the number of snow leopards (10)______ (rise) to around 7,500 across the range. Only when people learn to exist in harmony with nature will such success stories continue. 题号 答案 考点判断 1 is 主语 the snow leopard 为第三人称单数，谓语用 is 2 dropping keep doing 固定结构；drop 为重读闭音节，双写 p 再加 -ing 3 smaller 栖息地"变小"，有比较含义，用比较级 4 faced In 2013 为明确的过去时间，用一般过去时 5 out die out 物种灭绝（群体整体消失）；声音渐弱用 die away 6 dying from 为介词，后接动名词；save... from dying 使免于死亡 7 under under national protection 固定搭配，介词不换 in / with 8 over watch over 含"警戒、看守"义，宾语为区域或种群 9 a as a result（固定短语）；不可漏掉冠词 a 10 has risen 数量"已回升到"，用现在完成时；rise 不及物无被动 （2） 语篇阅读（共 4 小题）★★ 阅读下面短文，从每题所给的四个选项（A、B、C 和 D）中，选出最佳选项。 In the 1990s, the saiga antelope of Central Asia suffered one of the fastest population crashes ever recorded. Once numbering over one million, the species collapsed to fewer than 50,000 in barely a decade. The main threat was not habitat loss but uncontrolled hunting: after the collapse of the Soviet Union, unemployed local people turned to poaching the antelope for its meat and its horn, which was sold illegally abroad. Conservationists acted quickly. Kazakhstan and Russia placed the saiga under strict national protection, set up ranger patrols, and worked with local communities to create alternative incomes. Education programmes in village schools taught children why the animal mattered, and former poachers were hired as wildlife guards. Yet the road to recovery remained uncertain. In 2015, a mysterious bacterial disease swept through several herds and killed more than 200,000 saigas in a matter of weeks—a harsh reminder that even protected species remain fragile. Today, the saiga population has recovered to roughly 2.8 million, and it was downgraded from Critically Endangered to Near Threatened on the IUCN Red List in 2023. Scientists, however, warn that climate change and disease still threaten the gains. "The numbers look good," says one researcher, "but one outbreak could undo a decade of work." 1. What was the main cause of the saiga's population crash in the 1990s? A. Loss of its natural habitat. B. Uncontrolled illegal hunting. C. A sudden change in climate. D. The spread of a bacterial disease. 【答案】B 【解析】首段 "The main threat was not habitat loss but uncontrolled hunting"，明确主因是无节制的偷猎。A 项被 not 直接否定；C 项气候变暖是当今威胁，非 90 年代崩溃主因；D 项 2015 年的细菌病是复苏阶段的插曲。 2. What does the underlined phrase "collapsed" in Paragraph 1 most probably mean? A. Developed rapidly. B. Broke down suddenly. C. Expanded greatly. D. Recovered slowly. 【答案】B 【解析】collapse 本义"坍塌、崩溃"，此处指种群数量骤降，break down suddenly 相符；A、C 与语境相反，D 是复苏义。 3. Why does the author mention the bacterial disease in 2015? A. To explain why the species went extinct. B. To criticize the governments' measures. C. To show that protected species can still be fragile. D. To introduce a new protection law. 【答案】C 【解析】第二段 "a harsh reminder that even protected species remain fragile" 直接点明意图——即便受保护的物种依然脆弱。A 项与事实相反（并未灭绝）；B 项无批评之意；D 项文中未提新法律。 4. What can be inferred about the saiga conservation from the passage? A. It depends heavily on cross-border cooperation. B. It has ended the poaching completely. C. It focuses mainly on educating children. D. It was first proposed by former poachers. 【答案】A 【解析】第二段 Kazakhstan and Russia placed the saiga under strict national protection and worked with local communities，两国联手、社区参与，可见保护高度依赖跨境协作。B 项"完全终止"绝对化，文中只说雇佣 former poachers 为 guards；C 项教育只是措施之一；D 项 former poachers 是被雇佣方，不是倡议者。 （3） 完形填空（共 15 小题）★★★ 阅读下面短文，从每题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项。 In a small village on the edge of a national park, a young farmer named Kofi used to see elephants as enemies. They came out of the forest at night, walked through his fields, and ate his crops. Like most of his neighbours, Kofi believed the animals should be (1)______, or at least kept far away. One night, however, everything changed. A forest fire (2)______ by lightning spread towards his house, and it was a group of elephants that (3)______ the way to a safe river path. Kofi (4)______ the animals in a new light from that day on. Years later, Kofi became a guide for the local wildlife reserve. He now spends his days (5)______ tourists and explaining why every species, even the ones that (6)______ trouble, has a role to play. The reserve (7)______ more than 500 square kilometres, and its elephants are (8)______ day and night by a team of rangers and volunteers. Thanks to their (9)______, the number of elephants has slowly (10)______ to over 1,200. Yet the work is far from finished. Some villagers still (11)______ the elephants as a threat to their harvests, and conflicts over land remain (12)______. Kofi's answer is education. "If people (13)______ what the forest gives them," he says, "they will protect it without being (14)______ to. Awareness, not fences, is what will finally keep both people and wildlife (15)______." 1. A.protected B.hunted C.fed D.studied 2. A.made B.set C.given D.caused 3. A.lost B.showed C.blocked D.followed 4. A.looked at B.looked for C.looked after D.looked into 5. A.raising B.leading C.counting D.feeding 6. A.bring B.take C.cause D.make 7. A.opens B.holds C.covers D.includes 8. A.watched over B.looked after C.searched for D.cared about 9. A.efforts B.hunts C.profits D.attacks 10. A.fallen B.dropped C.risen D.stayed 11. A.regard B.treat C.describe D.keep 12. A.small B.common C.rare D.new 13. A.forget B.understand C.doubt D.ignore 14. A.allowed B.hoped C.forced D.encouraged 15. A.safe B.free C.quiet D.alive 【答案】1—5 B D B A B　　6—10 C C A A C　　11—15 A B B C A 【解析】1. B。后文 "kept far away" 提示村民视大象为害兽，应被猎杀或驱赶。protect 与语境相反。 【解析】2. D。cause a fire 引起火灾，固定搭配；过去分词短语作后置定语。 【解析】3. B。show the way 指路，与 "safe river path" 呼应。 【解析】4. A。look at... in a new light 用新的眼光看待，固定表达。 【解析】5. B。导游的工作是 lead tourists（带领游客）。 【解析】6. C。cause trouble 惹麻烦，与上文大象毁坏庄稼呼应。 【解析】7. C。reserve covers 500 km² 表示"覆盖、占地"面积。 【解析】8. A。watch over 含"警戒、看守"义，与 rangers and volunteers 的守护职责一致。 【解析】9. A。thanks to their efforts 意为"多亏他们的努力"，名词搭配正确。 【解析】10. C。数量"回升到"用 rise to；rise 不及物无被动。 【解析】11. A。regard... as 把……看作，固定搭配。 【解析】12. B。冲突"仍然常见"，common 符合 "far from finished" 的语义。 【解析】13. B。understand what the forest gives them 理解森林的馈赠，与 awareness 呼应。 【解析】14. C。without being forced to 无需被强迫，强调自觉。 【解析】15. A。keep... safe 使……安全，回扣全篇保护主题。 （4） 应用文写作（1 篇）★★★ 假定你是学生会主席李华，你校英语俱乐部计划组织一次主题为 "Living in Harmony with Wildlife" 的宣传活动。请写一封倡议书，内容包括： · 活动的目的； · 具体的活动内容； · 呼吁同学们参与。 注意：词数 80 左右；开头和结尾已给出，不计入总词数。 参考范文 Dear fellow students, I am Li Hua, chairman of the Student Union. Our English Club is launching a campaign themed "Living in Harmony with Wildlife", aiming to raise awareness of wildlife protection on campus. We will set up information boards showing how endangered species are being protected across China, and screen a short film about volunteers watching over Tibetan antelopes. Afterwards, you are invited to share one practical tip on our pledge wall. Only when we truly care will our planet remain a home for every living creature. Join us and make a difference! Yours, Li Hua 写作要点与评分视角 · 身份与对象：学生会主席 → 全校同学，语体正式但不僵化，可用感叹句收束。 · 核心词块调用：threaten wildlife / endangered species / watch over / make a difference / living creature，全部来自本讲链上词块。 · 倒装句式：Only when we truly care will our planet remain... 倒装到位，主谓不倒置。 · 词数控制：正文约 85 词，符合"80 词左右"的要求；如需压缩，删去 pledge wall 一句即可。 第 页 学科网（北京）股份有限公司 $学科网周周有招·高中英语同步系列尖子班精品讲义 2026秋·人教版必修二·高一上Unit 2 Wildlife Protection 第15讲 数字方向与措施主体 （学生版） ——生态保护语篇的听力预判与词块调用 课型：同步精讲 + 听力实战 课时：2课时（120分钟） 使用对象：高一年级尖子班 目录 一、 课时安排与学习目标 1 二、 听前导入：先给耳朵装一条链 2 三、 语义链：物种—威胁—措施—成效 3 四、 ★词块：挂在链上记 4 五、 听力三抓：数字方向、措施主体、态度转折 9 六、 典例精析 10 七、 分层检测 12 八、 高频易错速查表 15 九、 课堂小结 15 十、 课后巩固（独立作业） 16 1、 课时安排与学习目标 本讲安排 120 分钟、2 课时连排。第 1 课时完成听前导入、语义链建模、16 个★词的链上归位与搭配限制（约 60 分钟）；第 2 课时完成听力三抓实战、典例精析、分层检测与课堂小结（约 60 分钟）。课后巩固另计，不占用课时。 （1） 课时安排 时段 内容 时长 第1课时 听前导入（3秒反应）→ 语义链建模 → ★词块链上归位 → 六个高频词块与易混辨析 60分钟 第2课时 听力三抓 → 典例精析（藏羚语篇 + 护鸟对话）→ 数字方向微练 → 分层检测 → 课堂小结 60分钟 课后 语填10空 + 阅读4题 + 完形15空 + 写作1篇，独立作业30分钟 30分钟 （2） 学习目标 维度 本讲目标 语言能力 掌握 species、habitat、reserve、wildlife、endangered、extinction、hunt、illegal、threat、protect、measure、recover、remove、survive、volunteer、awareness 16 个词的音、形、义与搭配限制，做到听音能反应、见词能搭配、写作能调用。 学习能力 建立"物种—威胁—措施—成效"语义链，能在听力中顺着链预判信息走向，变逐词硬跟为定向接收。 思维品质 掌握听力三抓：数字方向（by / to）、措施主体（政府 / 志愿者 / 当地居民）、态度转折（but / however 之后通常为真实判断）。 重点 ★词块的链上归位与搭配限制；听力数字方向与措施主体的同步记录。 难点 by / to 后接绝对值时的方向判断；"Only + 状语从句"置于句首引起的部分倒装。 2、 听前导入：先给耳朵装一条链 （1） 3 秒反应 上课先做一个 3 秒反应。教师读一句，你不翻书，听完立刻抢答"这句在讲什么"。 听辨材料： The population dropped by more than 50 percent. 多数同学能抓住 dropped，抓不准 by。drop 是"降"，by 才是"降了多少"的钥匙：dropped by more than 50 percent 是"降了五成以上"，dropped to 50 percent 才是"降到五成"。听力只放一遍，耳朵必须在听到的那一秒就把数值和方向一起记下来，没有第二遍给你慢慢想。 拓展对比（建议补充练习）： · The population dropped by 50,000.（减少了 5 万，by 后接差额） · The population dropped to 50,000.（减少到 5 万，to 后接终点） （2） 为什么先练这个 因为生态类听力材料的信息不是散着出现的。它有一条极稳的推进顺序：先说有什么物种，再说遇上什么威胁，接着讲人做了什么，最后交代成效如何。把这条链提前装进脑子，听的时候就不是逐词硬跟，而是"顺着链往前接"。听到物种名，耳朵已经在等威胁；听到数据，立刻判断这是威胁段还是成效段。 课堂落点：本讲不追求听懂每一个词，只追求"方向 + 数值 + 主体"三项同步落地。 3、 语义链：物种—威胁—措施—成效 生态类语篇和听力材料，段落推进基本都沿这四条线走。做题先自建链：只看下表左三列，把第四列"听到什么就往哪儿挂"自己写出来，写完再听讲对表——这条链是你自己长出来的，才记得住。（说明：并非所有生态语篇都严格按四段推进，需灵活挂靠。） 语义链 线上词块 听力里落在哪儿 听到什么就往哪儿挂 （先自填，再对表） 物种 Tibetan antelopes; a herd of graceful animals; on the plains of Xizang, Xinjiang and Qinghai; habitat Watching them move slowly across the green grass, I'm struck by their beauty. 　 威胁 hunt... illegally; valuable fur; make profits; habitats were becoming smaller; threats They were hunted, illegally, for their valuable fur. 　 措施 place... under national protection; watch over day and night; keep safe from attacks; bridges and gates were added Zhaxi and other volunteers watched over the antelopes day and night. 　 成效 the population has recovered; downgrade from Endangered to Near Threatened; exist in harmony with nature The measures were effective. The population has recovered. 　 锚点句：背单词要挂在听过的句子上 链上右列是"锚点句"。背单词要把词挂回句子——挂在听过的句子上，比挂在阅读句子上更能提速。听力里听不出词，九成不是不认识，是认识但反应慢。 即时练 把 The animals are in danger. We must protect them. 改写成含具体物种、威胁、数据的句子，写在下面的横线上。 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ 判断一个词是否真掌握，标准只有一条：能不能用它写出带具体信息的句子。 4、 ★词块：挂在链上记 ★词要求"见词能搭配、听音能反应、写作能调用"。下表按语义链归位，不按字母排。先把"易错处"一列遮住，自己先说一遍搭配限制，再对表检查。 词 变形 一个能听出来的搭配 易错处 高考落点 species 单复数同形 save this species from extinction a species 谓语单数；these species 谓语复数 语法填空、阅读 habitat habitats habitats were becoming smaller 可数，常复数 阅读、写作 reserve reserves the Changtang National Nature Reserve 专有名词大写 听力、阅读 wildlife 不可数 protect wildlife; a threat to wildlife 不加 -s 写作 endangered endanger → endangered endangered species; the endangered species list 作定语修饰物种 语法填空、阅读 extinction extinct → extinction save... from extinction; face extinction 前无冠词 语法填空、写作 hunt hunted hunt... illegally; shooting antelopes 过去式 hunted 听力、阅读 illegal illegally adv. illegal hunting; hunted illegally 副词修饰动词；hunting 为不可数名词 语法填空 threat threaten v. the threats have not yet disappeared threaten to do sth 阅读、听力 protect protection n. protect... from; under national protection protect 的宾语是受保护对象 语法填空、写作 measure measures take measures; the measures were effective 可数，常复数 写作 recover recovery n. the population has recovered 不及物，不直接跟宾语 语法填空 remove removal n. remove... from the endangered species list remove A from B 阅读 survive survival n. help them survive 不及物 语法填空 volunteer voluntary adj. Zhaxi and other volunteers; volunteer to do volunteer to do sth 听力、写作 awareness aware adj. raise awareness of raise awareness of sth 写作 （1） 六个高频词块：搭配限制与调用 下面六个词块是本讲的"承重件"。每个都按"例句 → 限制 → 错句 → 即时练"四步走一遍，练完就能用。即时练一律按高考语法填空作答：括号内单词变正确形式，或填入一个适当的词。 1. endangered species 濒危物种 例：The Tibetan antelope was downgraded from Endangered to Near Threatened on the IUCN Red List in June 2021. 限制：species 单复数同形。a species / this species 后谓语用单数；these species / many species 后谓语用复数。不要写成 specie，也不在 species 后加 -s。 错句：Many species is endangered.（many species 后谓语用复数 are） 即时练：Many species ______ (be) at risk of extinction. 2. under national protection 受国家保护 例：In order to save this species from extinction, the Chinese government placed it under national protection. 限制：under protection 是固定搭配，介词不换成 in / with；place... under protection 的宾语是被保护对象。 错句：The government placed the antelope in national protection.（介词应为 under） 即时练：The reserve was placed ______ national protection.（填入一个适当的词） 3. watch over... day and night 日夜守护 例：Zhaxi and other volunteers watched over the antelopes day and night. 限制：watch over 含"警戒、看守"义，典型宾语是区域、种群或需要守护的人。照料伤病个体通常用 look after / care for；二者在"日常护理"语境下不互换。 错句：Volunteers looked after the antelopes day and night to keep them safe from attacks.（语境偏"警戒守护"，watched over 更准） 即时练：The volunteers ______ the injured bird until it could fly again.（填入一个适当的词） 4. keep... safe from 使……免于 例：... to keep them safe from attacks. 限制：from 后常接危险源名词（attacks、cars、trains）。接动名词多用于被动意义，如 keep them safe from being attacked。结构为 keep + 宾语 + 形容词 + from。 错句：The fence keeps the antelopes safe for wolves.（"免于危险源"用 from，不用 for） 即时练：Laws keep the animals safe ______ attacks.（填入一个适当的词） 5. save... from extinction 使……免于灭绝 例：In order to save this species from extinction, the Chinese government placed it under national protection. 限制：extinction 前无冠词；save... from 后常接"坏结果"名词。接动作用动名词被动式，如 save him from being killed。 错句：We must save the species from extinct.（from 后接名词 extinction） 即时练：In order to save this species ______ extinction, the government took measures.（填入一个适当的词） 6. exist in harmony with nature 与自然和谐共处 例：Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 限制：Only + 状语从句置于句首引起部分倒装，can 提到主语 we 之前。这是写作可直接引用的句式。（补充：Only 修饰主语时不倒装，如 Only he can help us。） 错句：Only when we learn to exist in harmony with nature we can stop being a threat.（未倒装） 即时练：Only when the hunt was banned ______ (do) the elephants return to these hills. （2） 易混辨析（六组） 下面六组是考场上最容易用错的词。每组先判断错句错在哪，再填正句，最后用一道语法填空落地（括号词变形或填入一个适当的词）。 第一组 die out / die away / die off 错句：The sound of the wind died out at midnight. die out 的主语须是物种、种群、习俗这类可整体消失的群体；声音、风、光线渐弱用 die away；群体相继死亡用 die off。 正句：The sound of the wind died away at midnight. / Without protection, this species may die out. 即时练：Without protection, this species may die ______.（填入一个适当的词） 第二组 recover / restore 错句：The government restored the antelope population. restore 强调人为修复受损对象，常接 habitat / forest / building / order，或 restore the population to 70,000。表"数量自行回升"用不及物的 recover。 正句：The antelope population has recovered. Volunteers restored the damaged habitat. 即时练：The antelope population has ______ (recover) to over 70,000. 第三组 protect... from / prevent... from 错句：The reserve protects illegal hunting in this area. protect 的宾语是受保护对象，不是要被阻止的行为；表"阻止某事发生"用 prevent / stop... from doing。 正句：The reserve protects the antelopes from illegal hunting. / Laws prevent people from hunting them. 即时练：Laws prevent people ______ hunting the antelopes.（填入一个适当的词） 第四组 threat / threaten 错句：The new mines threaten to the camels. threaten 是及物动词，直接接宾语，不加 to；名词 threat 后接 to。 正句：The new mines threaten the camels. / The new mines are a threat to the camels. 即时练：New mines are a ______ (threaten) to the camels. 第五组 extinct / extinction / endangered 错句：The species is in danger of extinct. of 后接名词 extinction；extinct 是形容词；endangered 是形容词，表"濒危的"。 正句：The species is in danger of extinction. / The species is endangered. 即时练：The species is in danger of ______ (extinct). 第六组 raise / rise 错句：The number has raised to 900. raise 是及物动词，后接宾语；rise 是不及物动词，无被动，过去分词 risen。 正句：The number has risen to 900. / They raised awareness of wildlife protection. 即时练：The number of camels has ______ (rise) to around 900. 5、 听力三抓：数字方向、措施主体、态度转折 （1） 抓数字：方向比数值更要命 drop by 50 percent 是"降了 50%"，剩余是原数 50%；drop to 50 percent 是"降到原数的 50%"——百分比语境下两者结果相同，但 by 后是减量、to 后是终点。 真正易混的是 by / to 后接绝对值：先把下表右列自己填一遍再对表。 表达式 含义（先自填） dropped by 50,000 dropped to 50,000 recovered to 70,000 increased / rose by 70,000 判断抓手：by 后是"差额"，to 后是"终点"。听力只放一遍，by / to 和箭头方向必须一起记。 （2） 抓措施与主体 措施动词常是 set up、place... under protection、watch over、pass laws、raise awareness；主体常是 the government、volunteers、local people。"谁 + 做了什么"要一并记。把志愿者做的事安到政府头上，是最经典的偷换。 （3） 抓态度 unfortunately、luckily、surprisingly 直接提示态度；but、however 之后通常是说话人的真实判断，态度题的答案几乎总在转折之后。 注意："转折后即真实判断"不能绝对化——有时转折后只是补充一个新事实，态度仍需按内容判断。 记笔记符号（供参考，你也可以自创） · 数字后标方向：50%↓（下降）、70,000↑（回升） · 措施记"动词 + 对象"首字母：S/U reserve（set up a reserve）、U/N protection（under national protection） · 态度符号：worried = ↓，hopeful = ↑；but 处单独标注，其后内容重听 预判练★：给首句，先写出你预测接下来会出现的 2 个词块 首句 我预测会出现的词块 Tibetan antelopes are a species... The population dropped by more than 50 percent... The government has placed them under national protection... However, the threats have not yet disappeared... Volunteers watch over the animals day and night... 6、 典例精析 （1） 听力理解（共 5 小题）★★ 听下面一段材料，完成第 1—3 题。（材料由教师朗读，语速约 130 词/分钟）听前先用 10 秒读题干，圈出每题要抓的信息点。 听力材料 Good morning, everyone. I am from the school Wildlife Protection Club. Today I would like to tell you something about the Tibetan antelope. In the 1980s and 1990s, the antelope population dropped by more than 50 percent, because hunters were shooting them for their valuable fur. Luckily, things have changed since then. The government has placed the antelope under national protection and has set up more than 30 nature reserves. Volunteers like us watch over the animals day and night and try to raise awareness of wildlife protection among local people. As a result, the population has recovered to over 70,000. However, we should not stop here—the threats to the animal have not yet disappeared. 1. How much did the antelope population drop in the 1980s and 1990s? A. More than 50 percent. B. More than 15 percent. C. More than 70 percent. 2. What has the government done to protect the antelope? A. It has moved the antelopes into zoos. B. It has allowed hunting again. C. It has set up more than 30 nature reserves. 3. What is the speaker's attitude towards the present situation? A. Proud but cautious. B. Disappointed. C. Indifferent. 听下面一段对话，完成第 4—5 题。（材料由教师朗读，语速约 130 词/分钟）听前先用 10 秒读题干，圈出每题要抓的信息点。 听力材料（对话） W: Mr. Lee, I heard you just came back from the bird protection station. How long did you stay there? M: For two weeks. We counted the birds there—the number has dropped by about 20 percent since last year. W: That's sad. What caused it? M: Mainly the use of pesticides on nearby farms. Luckily, the local government has set up a new reserve, and volunteers will watch over the birds during the winter. W: What can we students do to help? M: You can raise money for the reserve and tell more people about the birds. But remember—don't get too close to them when you watch, because birds are easily frightened. 4. How much has the number of birds dropped since last year? A. By about 10 percent. B. By about 20 percent. C. By about 40 percent. 5. What does the man remind the students to do? A. Watch the birds from a distance. B. Feed the birds in the winter. C. Count the birds every week. （2） 数字方向即时练（共 5 小题）★ 用 by 或 to 填空。 1. The population dropped ______ 50 percent. 2. The number recovered ______ 70,000. 3. The population dropped ______ 50,000. 4. The number rose ______ 900. 5. The species decreased ______ 30 percent. 7、 分层检测 （1） 基础层（基础）词块填空（共 10 小题，课堂完成）★ 用本讲词块填空，必要时变化形式：endangered species / save... from extinction / under national protection / watch over / raise awareness of / take effective measures / species / keep... safe from / only 倒装 / rise 1. The Tibetan antelope was once a(n) ______. 2. In order to ______ this species ______ extinction, the government placed it ______ national protection. 3. In the 1990s, volunteers ______ the antelopes day and night. 4. They try to ______ wildlife protection among local people. 5. The government has ______ to protect the animals. 6. Many ______ are at risk of extinction. 7. The Tibetan antelope has long been ______ national protection. 8. Volunteers keep the newborn antelopes safe ______ wolves. 9. Only when we protect their habitats ______ animals live in safety. 10. Thanks to the new reserve, the number of Tibetan antelopes has ______ sharply. （2） 提高层（提高）单句语法填空（共 8 小题，课堂完成）★★ 1. Their habitats were becoming smaller ______ more roads and railways spread into the plain.（填入一个适当的词） 2. The measures were ______ (effect), and the population has recovered. 3. Rangers ______ (watch over) the reserve all night to guard against poachers. 4. ______ (fortunate), the population began to rise again. 5. Only when the habitat was restored ______ (do) the species begin to recover. 6. The government has passed laws ______ (prevent) illegal hunting. 7. The number of wild elephants in the area ______ (rise) to nearly 400 by now. 8. However, the threats ______ (not disappear) yet. （3） 提高层（提高）语篇阅读（共 4 小题，课堂完成）★★ 阅读下面短文，完成第 1—4 题。第一遍读完全文再做题；第二遍带着题干回文定位。 Passage The Chiru Comes Back On the high plains of Xizang, a quiet comeback is underway. In the 1990s, Tibetan antelopes, or chiru, were hunted illegally for their valuable underfur, and the population dropped by more than 50 percent. At its lowest, fewer than 70,000 animals remained. Things began to change when the Changtang National Nature Reserve was set up and the species was placed under national protection. More than 30 reserves now shelter the antelopes. Volunteers and rangers watch over them day and night, keeping them safe from attacks and from roads that cut across their migration routes. Bridges and gates have been added so that the animals can cross safely. The measures were effective. By 2026, the population has recovered to over 300,000, and it was downgraded from Endangered to Near Threatened on the IUCN Red List in June 2021. Yet the old hunters have not all disappeared. New mines and railways still threaten the habitat, and climate change is making the grass poorer. As one volunteer puts it, "The number is hopeful, but our job is not finished." The lesson travels well beyond Xizang. In Yunnan, the population of wild Asian elephants has risen from about 150 in the 1980s to nearly 400 today, thanks to corridors that link forests and to local people who warn drivers when elephants are near. Protecting wildlife is never a one-day job: it asks for patience, money, and the will to exist in harmony with nature. （说明：文中 70,000、300,000 等数量均为教学情境概数，用于语篇理解训练，不作为正式统计口径。） 1. What does the underlined word "comeback" in Paragraph 1 most probably mean? A. A return to a former state. B. A sudden disappearance. C. A long migration. D. A new species. 2. Why were "bridges and gates" added according to Paragraph 2? A. To keep tourists away. B. To mark the reserve border. C. To help antelopes cross roads safely. D. To count the population. 3. What can we infer from the volunteer's words in Paragraph 3? A. He is satisfied with what has been done. B. He is worried but hopeful. C. He wants to give up. D. He doubts the data. 4. What is the author's main purpose in writing the last paragraph? A. To compare two species. B. To introduce a new park. C. To criticize local people. D. To call for long-term action. 8、 高频易错速查表 考前 3 分钟过一遍本表。看左列信号，把中列"判什么"自己写出来，再对表；右列反例专治似是而非的判断。 判定信号 （听到/看到什么） 判什么 （先自填） 反例（何时不成立） drop / fall / decrease + 数字 rise to 900 中 to 后仍是终点；但 rise by 900 表增量 the government / volunteers / local people set up reserves 属政府，watch over 多属志愿者，不可互换；主体判断须以原文明确交代为准 but / however / yet 若转折后为新事实（However, the threats remain），态度仍为谨慎而非乐观 Only + 状语（从句）置于句首 Only 修饰主语时不倒装：Only he can help us protect... from 的宾语 The reserve protects illegal hunting 错；应改为 prevents illegal hunting species / the number / population 作主语 many species are；the number of species has risen。（说明：文中数量均为教学情境概数。） 9、 课堂小结 一句口诀：听到物种等威胁，听到数据判方向，听到主体辨对错，听到 but 抓真章。把空补全后默背两遍。 三个能力，课下各练一遍： · 方向感：每天听一段生态类材料（教材音频或外刊短讯），只记 "by / to + 数字"，其余允许放过。 · 主体感：听措施时强制写下"谁 + 动词"两个词，不听完不抬笔。 · 态度感：凡是 but / however / yet 出现，立刻在笔记上画一道竖线，其后内容单独框起来。 10、 课后巩固（独立作业） 本模块素材全部取自本讲未用过的真实语篇，与课堂例题零信息重复，独立完成约 30 分钟。做完先自评：限时 30 分钟｜正确 ＿ / 33。 （1） 语法填空（共 10 小题）★★ 阅读下面短文，在空白处填入一个适当的词，或填入括号内所给词的正确形式。 The snow leopard (1)______ (be) one of the most mysterious big cats on Earth. For decades, its population kept (2)______ (drop) because hunters killed it for its thick fur, and its habitat became (3)______ (small) as roads and mines spread into the mountains. In 2013, the species (4)______ (face) a real risk of extinction, and many experts feared it might soon die (5)______ completely. In order to save the animal from (6)______ (die), the governments of twelve countries placed large areas (7)______ national protection. Volunteers were trained to watch (8)______ the leopards day and night, using camera traps instead of guns. As (9)______ result, the number of snow leopards (10)______ (rise) to around 7,500 across the range. Only when people learn to exist in harmony with nature will such success stories continue. （2） 语篇阅读（共 4 小题）★★ 阅读下面短文，从每题所给的四个选项（A、B、C 和 D）中，选出最佳选项。 In the 1990s, the saiga antelope of Central Asia suffered one of the fastest population crashes ever recorded. Once numbering over one million, the species collapsed to fewer than 50,000 in barely a decade. The main threat was not habitat loss but uncontrolled hunting: after the collapse of the Soviet Union, unemployed local people turned to poaching the antelope for its meat and its horn, which was sold illegally abroad. Conservationists acted quickly. Kazakhstan and Russia placed the saiga under strict national protection, set up ranger patrols, and worked with local communities to create alternative incomes. Education programmes in village schools taught children why the animal mattered, and former poachers were hired as wildlife guards. Yet the road to recovery remained uncertain. In 2015, a mysterious bacterial disease swept through several herds and killed more than 200,000 saigas in a matter of weeks—a harsh reminder that even protected species remain fragile. Today, the saiga population has recovered to roughly 2.8 million, and it was downgraded from Critically Endangered to Near Threatened on the IUCN Red List in 2023. Scientists, however, warn that climate change and disease still threaten the gains. "The numbers look good," says one researcher, "but one outbreak could undo a decade of work." 1. What was the main cause of the saiga's population crash in the 1990s? A. Loss of its natural habitat. B. Uncontrolled illegal hunting. C. A sudden change in climate. D. The spread of a bacterial disease. 2. What does the underlined phrase "collapsed" in Paragraph 1 most probably mean? A. Developed rapidly. B. Broke down suddenly. C. Expanded greatly. D. Recovered slowly. 3. Why does the author mention the bacterial disease in 2015? A. To explain why the species went extinct. B. To criticize the governments' measures. C. To show that protected species can still be fragile. D. To introduce a new protection law. 4. What can be inferred about the saiga conservation from the passage? A. It depends heavily on cross-border cooperation. B. It has ended the poaching completely. C. It focuses mainly on educating children. D. It was first proposed by former poachers. （3） 完形填空（共 15 小题）★★★ 阅读下面短文，从每题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项。 In a small village on the edge of a national park, a young farmer named Kofi used to see elephants as enemies. They came out of the forest at night, walked through his fields, and ate his crops. Like most of his neighbours, Kofi believed the animals should be (1)______, or at least kept far away. One night, however, everything changed. A forest fire (2)______ by lightning spread towards his house, and it was a group of elephants that (3)______ the way to a safe river path. Kofi (4)______ the animals in a new light from that day on. Years later, Kofi became a guide for the local wildlife reserve. He now spends his days (5)______ tourists and explaining why every species, even the ones that (6)______ trouble, has a role to play. The reserve (7)______ more than 500 square kilometres, and its elephants are (8)______ day and night by a team of rangers and volunteers. Thanks to their (9)______, the number of elephants has slowly (10)______ to over 1,200. Yet the work is far from finished. Some villagers still (11)______ the elephants as a threat to their harvests, and conflicts over land remain (12)______. Kofi's answer is education. "If people (13)______ what the forest gives them," he says, "they will protect it without being (14)______ to. Awareness, not fences, is what will finally keep both people and wildlife (15)______." 1. A.protected B.hunted C.fed D.studied 2. A.made B.set C.given D.caused 3. A.lost B.showed C.blocked D.followed 4. A.looked at B.looked for C.looked after D.looked into 5. A.raising B.leading C.counting D.feeding 6. A.bring B.take C.cause D.make 7. A.opens B.holds C.covers D.includes 8. A.watched over B.looked after C.searched for D.cared about 9. A.efforts B.hunts C.profits D.attacks 10. A.fallen B.dropped C.risen D.stayed 11. A.regard B.treat C.describe D.keep 12. A.small B.common C.rare D.new 13. A.forget B.understand C.doubt D.ignore 14. A.allowed B.hoped C.forced D.encouraged 15. A.safe B.free C.quiet D.alive （4） 应用文写作（1 篇）★★★ 假定你是学生会主席李华，你校英语俱乐部计划组织一次主题为 "Living in Harmony with Wildlife" 的宣传活动。请写一封倡议书，内容包括： · 活动的目的； · 具体的活动内容； · 呼吁同学们参与。 注意：词数 80 左右；开头和结尾已给出，不计入总词数。 Dear fellow students, ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Yours, Li Hua 写作要点与评分视角 · 身份与对象：学生会主席 → 全校同学，语体正式但不僵化，可用感叹句收束。 · 核心词块调用：threaten wildlife / endangered species / watch over / make a difference / living creature，全部来自本讲链上词块，至少用上三个。 · 倒装句式：Only when we ______ will our planet ______ a home for every living creature. 倒装到位，主谓不倒置。 · 结构：目的 → 活动内容（至少两项）→ 呼吁；写完后自查词数是否在 80 左右。 第 页 学科网（北京）股份有限公司 $