Unit1 The Changing World 第四课时 Section B 2a-3d 同步练 2026-2027学年人教版九年级英语上册

**基本信息** Unit1 The Changing World第四课时Section B 2a-3d同步练，通过基础、能力、拓展三层设计，实现从词汇到语篇的渐进巩固，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础过关|核心词汇（如narrow、miracle）、基础句型转换|直接对接课时重点，通过汉译英强化词汇拼写与固定搭配（如lead a common life）| |能力强化|词形转换（如village→villager）、语法应用（非谓语、比较级）|聚焦词性变化与语法规则，提升语言运用准确性（如现在分词作结果状语）| |拓展提升|情景交际、语篇补全、阅读理解|结合塞罕坝生态奇迹、印度热浪等真实情境，渗透文化意识与批判性思维（如分析极端高温成因）|

Unit1 The Changing World 单元同步课时练习 第四课时 Section B 2a-3d 【基础过关】 一、根据括号内所给的汉语提示完成句子。 1. The old town is full of ____________ (狭窄的) roads and ancient small houses. 2. Our teacher will ____________ (带领) us to visit the science museum. 3. The city plans to build a ____________ (人造的) island. 4. It was a ____________ (奇迹) that Robinson survived alone on the lonely island for so many years. 5. There are many ____________ (初级的) students playing sports on the playground. 6. The new ____________ (公寓) has three bedrooms and a big living room. 7. We finally reached an agreement after a long ____________ (讨论). 8. The teacher told us that we should pay attention to every ____________ (方面) of safety. 二、根据汉语意思完成句子，每空一词。 1. 冒险结束后，王子选择在海边过一种普通生活。 After the adventure, the prince chose to ____________ ____________ ____________ ____________ by the sea. 2. 作为一名初中生，我对未来怀揣许多梦想。 As a ____________ ____________ ____________, I have many dreams for the future. 3. 我们将讨论我们的暑假计划。 We will ____________ ____________ ____________ about our summer plan. 4. 这座桥将会让村民们渡河进城出行变得十分便利 The bridge will ____________ __________ ____________ for the villagers to travel across the river to the city. 5. 我们都知道兔子以青草和胡萝卜为食。 We all know that rabbits ____________ ____________ grass and carrots. 【能力强化】 三、用所给单词的适当形式填空。 1. A kind ____________(village) saved a white bird, and it later brought him good luck. 2. We protect forests and wildlife, ____________(create) the world's better living space. 3. When there are no trees ____________(hold) the earth, rain will wash the soil away easily. 4. My family used to live in a small flat, but now we have moved to a much ____________(large) one. 5. I had an ____________(amaze) trip with my classmates last summer vacation. 6. The ____________(discuss) helps us understand the problem better. 7. When the temperature is below ____________(freeze), water will turn into ice. 8. The paper-cut ____________(make) by an elderly artist shows the traditional culture of our nation. 9. We should choose ____________(education) videos when we go online. 10. The sudden accident, which happened at midnight, ____________(lead) to a big panic in the neighborhood. 【拓展提升】 四、单项选择。 ( )1. — I’m worried I'll make mistakes during the performance. — ____. Everything will go well. A. Take it easy B. Don’t mention it C. It all depends D. Sounds great ( )2. — Feifei, why did you arrive late for the party? — On my way here, my bike tyre went ______, so I had to walk. A. weak B. narrow C. flat D. empty ( )3. — The farmers used to ____ a busy life, but now they have more free time. — That's really a big change. A. carry B. lead C. make D. keep ( )4. — Many volunteers went to the mountain area to offer free ____ to the sick villagers. — They are so kind and helpful. A. modern technology B. traffic safety C. table manners D. medical care ( )5. — Did you hear the news? Our U12 football team ______ the championship recently. — That's amazing! They did a great job. A. wins B. won C. has won D. will win ( )6. — Have you finished preparing for the coming exam, Fuxing? — Not yet. ______, I still need two more days. A. Actually B. Generally C. Naturally D. Simply ( )7. — The young artists ______ the traditional culture for creative ideas. — That’s why their works are so special and meaningful. A. put on B. hold on C. turn on D. feed on ( )8. The famous story "Drive south while heading north" tells us ____. A. how we can choose a good horse B. what we should do before taking action C. whether we should stick to our dreams D. why do people always lose their ways 五、选择恰当单词或短语，补全短文。（提示：有两个多余） change \ miracle \ secret \ fresh \ covered with \ connected with \ efforts Saihanba is a famous forest area in Chengde, Hebei Province. Many years ago, it was 1 sand and often suffered from terrible sandstorms. In 1962, a group of young people came here to 2 the environment. They lived a hard life and fought against cold and strong winds. Three generations of foresters kept planting trees without stopping. After over sixty years of 3 , a large man-made forest has appeared. Today, Saihanba is known as "the Green Lung of North China". It protects the land from sandstorms and makes the air 4 . It is a great ecological 5 and teaches us the value of working hard. 1.____________ 2. ____________ 3. ____________ 4. ____________ 5. ____________ 【拓展提升】 六、阅读理解。 In recent years, India has suffered from more serious heat waves. From March to June every year, temperatures in many areas often rise above 43°C, and some places even hit nearly 50°C. Recently, 95 of the world’s 100 hottest cities lie in India, making it a main center of extreme(极端的) high temperature on Earth. ★ Geographically, India lies in tropical(热带) and subtropical(亚热带) zones. Before summer monsoons(季风) arrive, sunlight hits the land directly. The Himalayas in the north block cool northern winds, keeping hot air over the plains and forming a “heat dome” that stops heat from escaping easily . Besides, weak rainfall and the El Niño climate effect make the weather drier and hotter. Human activities make the problem worse: rapid urbanization(城市化) creates urban heat islands. More roads, tall buildings and fewer trees take in and store heat. Greenhouse gas emissions(排放) from factories and cars speed up global warming as well. Extreme heat brings serious troubles. It harms people’s health greatly. Outdoor workers, elderly people and kids easily get heatstroke or heat exhaustion(虚脱). High electricity use for cooling often causes power cuts, which worsens water shortages. Crops like wheat grow poorly under extreme heat, leading to lower harvests. Long dry weather also raises risks of droughts across farmlands . To fight heat waves, India has taken useful steps. Local governments send early heat warnings to the public and build cooling centers for people to rest. Workers are ordered to avoid working during the hottest noon hours. Tree-planting projects expand city green areas to lower local temperatures. In the long run, cutting carbon pollution and developing clean energy can slow global warming effectively. India’s repeated heat waves are a clear warning of climate change. Extreme weather is no longer distant news. If we protect forests, control pollution and live a low-carbon life together, we can cool our planet and build a safer living environment for all. ( )1. What writing skill does the writer use in Paragraph 1? A. Telling stories. B. Give examples. C. List numbers. D. Explaining reasons. ( )2. Which of the following can be put in ★ in Paragraph 2? A. India has a long history of different climate types. B. The Himalayas have a great influence on India's extreme heat. C. There are natural and human reasons for this extreme heat. D. The weather in India changes all the time. ( )3. Which is the right structure of the passage? A. B. C. D. ( )4. Which of the following is TRUE according to the passage? A. Only outdoor workers will get heatstroke. B. Clean energy can make global warming worse. C. India stops all outdoor work every day. D. Extreme heat will lead to poor crop harvests. ( )5. What is the writing purpose of the passage? A. To introduce different kinds of extreme weather on Earth. B. To call on people to protect the environment and fight climate change. C. To show how heat waves influence local farming and economy. D. To explain all the measures India has taken to prevent heat waves. 答案与解析 【基础过关】 一、根据括号内所给的汉语提示完成句子。 1. narrow 2. lead 3. man-made 4. miracle 5. junior 6. flat 7. discussion 8. aspect 二、根据汉语意思完成句子，每空一词。 1. lead a common life 2. junior school student 3. have a discussion 4. make it convenient 5. feed on 【能力强化】 三、用所给单词的适当形式填空。 1. villager 2. creating 3. to hold 4. larger 5. amazing 6. discussion 7. freezing 8. made 9. educational 10. led 解析: 1. village 村庄；此处表示“善良的村民”，villager 村民，a 后用单数。 2. 现在分词作结果状语，表示自然而然的结果。我们保护森林与野生动物，以此创造更好的地球生存空间。 3. There be + 名词 + to do 结构，不定式作后置定语，表“用来……的”；没有树木固住泥土，雨水容易冲走土壤。 4.much 修饰形容词比较级，表“……得多”；现在搬到了比之前更大的公寓。 5.amazing 修饰事物（trip 旅途），意为“令人惊喜的”；amazed 用来形容人感到惊讶。 6. 定冠词 The 后需要名词作主语；discuss（动词，讨论）改为 discussion（名词，讨论） 7. below freezing 固定搭配，意为“冰点以下”；freezing 此处指冰点、零度。 8. 过去分词作后置定语，表被动；paper-cut (that was) made by... 由老艺人制作的剪纸 9. 修饰名词 videos 需要形容词；education（名词，教育）→ educational（有教育意义的） 10. 定语从句时态为一般过去时（happened），主句时态保持一致；lead 过去式为 led，lead to 导致。 【拓展提升】 四、单项选择。 1. A 2. C 3. B 4. D 5. C 6. A 7. D 8. B 解析: 1.前句说话人担心表演会出错，需要安抚类交际用语。Take it easy 意思是放轻松、别紧张，用于宽慰情绪焦虑的人；Don’t mention it 用来回应道谢，意为不客气；It all depends 表示视情况而定；Sounds great 用于赞同别人的提议，意为听起来很棒，只有A匹配语境。 2.固定短语go flat专门用来描述轮胎瘪气、漏气。weak意为虚弱的；narrow意为狭窄的；empty意为空的，三个单词都不能搭配轮胎漏气的场景。 3.固定搭配lead a ... life，表示过某种生活；used to后面接动词原形。carry意为搬运；make意为制作；keep意为保持，均无法和life构成该固定短语。 4.句中对象是生病的村民，对应的帮扶内容是医疗救助。medical care意为医疗护理、医疗救助；modern technology是现代科技；traffic safety是交通安全；table manners是餐桌礼仪，三者都不符合生病村民的语境。 5.recently（最近）是现在完成时标志性时间词，时态结构为have/has+动词过去分词。主语our U12 football team是单数集体名词，助动词用has，win的过去分词为won，因此选has won；A一般现在时、B一般过去时、D一般将来时都不匹配该时间状语用法。 6.问句询问是否备考完成，答句表明还没准备好，Actually意思是实际上、事实上，用来补充真实情况。Generally意为大体上、通常；Naturally意为自然而然地；Simply意为仅仅、简单地，三个副词不符合此处补充实情的逻辑。 7.feed on本义是以……为食，引申含义为从……汲取养分、取材于，本句指年轻艺术家从传统文化中获取创作灵感。put on表示穿上、上演；hold on表示稍等、坚持；turn on表示打开电器，三个短语语义均不符合句子逻辑。 8.成语“南辕北辙”讲述人目标向南，车子却向北行驶，努力越多离目标越远，寓意行动之前要先明确方向、找准目标，对应选项B“我们在采取行动前应该做什么”。A选项挑选好马只是故事细节，不是主旨；C选项是否坚持梦想和故事内涵无关；D选项存在语法错误，宾语从句需要陈述语序，正确形式应为why people always lose their ways，同时故事也不是探讨迷路的原因。 五、选择恰当单词或短语，补全短文。（提示：有两个多余） 1. covered with 2. change 3. efforts 4. fresh 5. miracle 解析: 1. 固定搭配be covered with 表示“被……覆盖”；本句表达很多年前塞罕坝遍地是沙土，经常遭遇严重沙尘暴。 2. 不定式符号 to 后面需要动词原形；change the environment 意为“改变环境”，这群年轻人来到此地改造恶劣生态环境。 3. efforts 表示“努力、付出”，after over sixty years of efforts 译为“历经六十多年的不懈努力”，对应三代造林人持续种树的漫长付出。 4. make + 宾语 + 形容词，作宾语补足语；fresh 意为清新的，树木净化空气，让空气变得清新，逻辑合理。 5. miracle 意思是奇迹；整片荒漠改造成大片人工林，是伟大的生态奇迹，也印证了奋斗的意义。 【拓展提升】 六、阅读理解。 1. C 2. C 3. A 4. D 5. B 解析: 1.第一段出现  above 43℃ 、 nearly 50℃ 、 95 of the world’s 100 hottest cities  多处数据，作者使用列数字（List numbers）的写作手法。A 讲故事、B 举例子、D 阐释原因均不符合本段写法。 2.第二段后半部分先讲地理位置、喜马拉雅山、降水、厄尔尼诺等自然因素，再讲城市化、温室气体排放等人为因素，总起句需要总领两类原因。C 选项“这种极端高温存在自然与人为两方面原因”总领全段； A 印度气候类型历史、B 只讲喜马拉雅山片面、D 天气多变，都无法概括整段内容。 3.文章段落结构：第1段：引出印度高温热浪现象（总起）;第2段：分析高温产生的原因;第3段：极端高温带来的各类危害;第4段：印度应对热浪采取的措施;第5段：总结，警示气候变化、呼吁环保; 结构：①总，②③④分述，⑤总结，对应结构图A。 4.A 错误：原文户外工作者、老人、孩子都容易中暑，不是只有户外工人；B 错误：清洁能源可以减缓全球变暖，不会加剧变暖；C 错误：印度只是避开正午最热时段户外作业，并非停止全部户外工作；D 正确：原文明确提到极端高温下小麦等作物长势差，收成降低。 5.文章结尾点明热浪是气候变化警示，呼吁保护森林、控制污染、低碳生活，以此降温、打造安全生存环境，写作目的是号召人们保护环境、应对气候变化，对应B。A 介绍各类极端天气（文章只讲高温）；C 只体现高温对农业影响（只是文章局部内容）；D 只介绍印度应对措施（片面，不是全文主旨）。 学科网（北京）股份有限公司 $