Unit 2 单元知识回扣-(配套教参)【精讲精练】2025-2026学年高中英语必修第二册(人教版)

该高中英语知识清单系统梳理了Unit 2核心知识体系。从核心词汇语境例句入手，延伸至拓展词汇词形转换，衔接重点短语与句型（含教材原句及仿写），最终通过野生动物保护主题语篇实现综合应用，构建“词汇-短语-句型-语篇”学习支架。 知识链路按“基础积累-拓展深化-综合应用”逻辑展开，核心词汇结合语境理解，拓展词汇强化词性关联，句型通过对比仿写提升表达。以语言能力培养为核心，融入环保主题渗透文化意识，助力学生构建系统语言网络，提升知识迁移与综合运用能力。

Unit 2 单元知识回扣 Ⅰ.核心词汇 1．Some immediate measures must be taken to prevent some students from smoking. 2．Everyone should be reminded to be more careful when conducting experiments in the chemistry lab. 3．Our class joined in the school poster exhibition with the topic “We Love Science”． 4．The man was walking in the wood when he was attacked (攻击) by a snake. 5．Some illegal hunters shoot (射杀) wild animals, that's why they are dying out. 6．My suggestion is that the column of entertainment should be removed (去除). 7．Her brother is above average (平均) in his reading ability. 8．What is worrying is that many habitats(栖息地) of bears are being destroyed. 9．There comes a time when we must take further measures to prevent many endangered species(物种) from disappearing. 10．The poster reminds us that we must take immediate measures to protect endangered creatures(生物). 11．You can improve your chances of profit(利润)by sensible planning. 12．All the residents of this block have been hunting (搜寻) for the missing child. 13．Nothing will be done because no one in authority(当权) takes the matter seriously. 14．Wild animals in nature reserves(保护区) need to develop their survival skills and keep their wild nature. Ⅱ.拓展词汇 1．shoot vt.& vi. 射杀；射伤；发射→shot 过去式→shot 过去分词 2．illegal adj.不合法的；非法的→illegally adv.不合法地；非法地→legal adj.合法的；法律的 3．hunt vt.& vi.打猎；搜寻；追捕→hunter n．猎人→hunting n．打猎 4. immediately adv.立刻→immediate adj.立即的；立刻的 5．alarm vt.使惊恐；使害怕；使担心 n．恐慌；警报(器)→alarming adj.惊人的；使人惊恐的→alarmed adj.担忧的；恐慌的 6．rate n．速度；(比)率 vt.划分等级→rating n. 等级；级别 7．extinct adj.已灭绝的→extinction n．灭绝 8．aware adj.知道；发觉；有……意识的→awareness n．认识；意识 9．endanger vt.使遭受危险；危害→endangered adj.濒临灭绝的 10．concern vt.涉及；让……担忧 n．忧虑；担心；关切；关爱；关怀→concerned adj.担心的；关切的→concerning prep.关于；有关；涉及 11．adapt vi.适应 vt.使适应；使适合→adaptation n. 适应，改编，改编本 12．pressure n．压力；要求→press v. 按，压 n. 新闻界，出版社 13．observe vt. 观察(到)；注视；遵守→observation n．观察→observer n. 观察者 14．beauty n. 美；美人；美好的东西→beautify v. 美化→beautiful adj.美丽的 15．remind vt. 提醒；使想起→reminder n. 提醒物 16．recover vi. 恢复；康复 vt. 找回；寻回→recovery n. 康复 17．reduce vt.减少→reduction n．减少；缩小；降低 18．effective adj.有效的；生效的→effect n．效果，作用；影响 19．intend vi.& vt.打算；计划；想要→intention n．意图；打算 20．emotion n．感情；情感；情绪→emotional adj.感情的；情感的；情绪的 21．unusual adj.特别的；不寻常的→usual adj.通常的；寻常的→usually adv.通常；正常地 22．exist vi.存在；生存→existence n．存在；生存→existing adj.现存的 23．harmony n．和谐；融洽→harmonious adj.和谐的，融洽的 Ⅲ.重点短语 1．on earth(放在疑问词之后表示强调)究竟；到底 2．die out 灭亡；逐渐消失 3．aware of意识到；知道 4．on average平均 5．make progress取得进步 6．concerned about对……关切的；为……担忧的 7．adapt to适应 8．under pressure在压力下；承受压力 9．make out看清；听清；分清 10．remind sb of sb/sth使某人想起(类似的人或物) 11．watch over保护；照管；监督 12．day and night日日夜夜；夜以继日 13．due to由于；因为 14．search for搜索；查找 15．stir up激起 Ⅳ.重点句型 1.句型公式：this is why...这就是……的原因 教材原句：This is why we're here—to observe Tibetan antelopes. 仿写1：这就是他昨晚拒绝接受邀请的原因。 This is why he refused to accept the invitation yesterday evening. 2.句型公式：only引导倒装句 教材原句：Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet. 仿写2：总之，只有成为聪明的在线学习者，我们才能真正享受现代技术的好处。 In a word，only by being smart online learners can we truly enjoy the benefits of modern technology. 3.句型公式：when it comes to...当谈及/涉及……时 教材原句：When it comes to wildlife protection, all species—the good, the bad, and the ugly—should be treated equally. 仿写3：当谈及求职面试时，第一印象至关重要。 When it comes to a job interview, first impressions are of great importance. 4.句型公式：强调句 教材原句：It is for this reason that the WWF constantly puts up information to stir up public interest in the welfare of the planet. 仿写4：正是由于糟糕的天气我们取消了足球比赛。 It was because of the bad weather that we cancelled the football match. Wildlife came into existence billions of years ago，which used to live in harmony with each other. However，at present, what we are concerned about is that animals are dying out at an alarming rate, 75 species every day on average. This is because human beings don't observe animal protection laws. Animals are being hunted, shot and attacked illegally so that people can obtain their skin，fur or other organs. Furthermore，not only do human activities lead to the reduction of animal habitats but also they cause the rise of global temperature, which threatens the survival of some animals，especially those species living in the polar regions. They make a living by hunting or fishing. So the ocean creatures are in danger due to the rapid melting of ice and they have difficulty adapting to the alarming changes. We must be aware that the extinction of masses of animals does great harm to us. Only if the authorities take effective measures immediately can we make progress in wildlife protection. Now, more nature reserves are being built to preserve endangered animals from extinction. 学科网（北京）股份有限公司 $