Unit 2 Topic 2 (核心必背知识清单）-2025-2026学年九年级英语上册单元复习与检测（仁爱科普版）

Unit 2 Saving the Earth Unit 2 Topic 2 阶段复习 1. 情境语篇过单词 中文翻译 家乡的环境重生记 五年前，我家乡的环境状况糟透了，堪称过去十年里最差的时期。每年春天，可怕的沙暴总会袭来 —— 狂风卷着沙粒，在地面形成一层厚厚的“沙毯”，连野生的灌木都难以存活。曾经的绿地几乎彻底地变成了沙漠，虽然村民们尝试浇水，但水分很快从土壤的洞里渗出，根本留不住。 更糟的是，水资源短缺让土地变得缺水，连村民的饮用水都要从远处运；街道上到处是垃圾，既不整洁的又散发异味，没有人愿意主动清理。有些使用者还会无礼地乱扔废品，甚至有人为了开垦耕地，直接破坏仅剩的植被 —— 这种行为可能会让环境进一步恶化，当时每个人都担心：未来我们会不会无处可居？ 后来，环保专家发现问题根源后，建议大家避免浪费资源、重复使用水资源；政府也出台了法律：没有一个人能随意破坏环境，对粗鲁的破坏者会进行惩罚，同时采取措施减少污染。随着时间推移，沙暴变少了，沙漠边缘开始长出小草，连野生的小鸟都回来了 —— 曾经绝望的环境，终于迎来了重生。 英语短文 The Rebirth of My Hometown’s Environment Five years ago, the environmental ______ (1) of my hometown was terrible — it was the ______ (2) period in the past decade. Every spring, terrible ______ (3) would hit: strong winds carried ______ (4) grains, which ______ (5) a thick “sand ______ (6)” on the ground. Even ______ (7) shrubs(灌木) could hardly survive. The once green land ______ (8) ______ (9) turned into a ______ (10). ______ (11) villagers tried to water the land, the water soon ______ (12) from the ______ (13) in the soil and couldn’t stay. Worse still, the water ______ (14) made the land ______ (15), and even the villagers’ drinking water had to be transported from far away. The streets were full of ______ (16), which was both ______ (17) and smelly. ______ (18) was willing to clean it up actively. Some ______ (19) even threw waste ______ (20) , and a few people even ______ (21) destroyed the remaining vegetation to open up farmland. This behavior ______ (22) make the environment worse. At that time, ______ (23) worried: Would we have ______ (24) to live in the future? Later, after environmental experts ______ (25) the root cause of the problem, they suggested that everyone ______ (26) wasting resources and ______ (27) water. The government also made a ______ (28) : ______ (29) could damage the environment casually. Those ______ (30) destroyers would be ______ (31), and measures were taken to ______ (32) pollution. As time passed, ______ (33) became fewer, grass began to grow on the edge of the desert, and even ______ (34) birds came back — the once desperate environment finally achieved rebirth. 【答案】1. situation 2. worst 3. sandstorm 4. sand 5. form 6. blanket 7. wild 8. nearly 9. completely 10. desert 11. Although 12. escaped 13. hole 14. shortage 15. thirsty 16. rubbish 17. untidy 18. nobody 19. user 20. rudely 21. directly 22. perhaps 23. everybody 24. nowhere 25. discovered 26. avoid 27. reuse 28. law 29. none 30. rude 31. punished 32. reduce 33. sandstorms 34. wild 2. 易考词汇变形归纳梳理 原形 变形 bad (adj. 坏的) worst (adj. 最差的，最糟的) tidy (adj. 整洁的) untidy (adj. 不整洁的，凌乱的) body (n. 人；身体) nobody (pron. 没有人) where (adv. 哪里) nowhere (adv. 无处；哪里都不) use (v. 使用；n. 用途) user (n. 使用者；用户) direct (adj. 直接的) directly (adv. 直接地) short (adj. 短缺的) shortage (n. 不足；缺少；短缺) thirst (n. 口渴；缺水) thirsty (adj. 缺水的；（口）渴的) complete (adj. 完整的；彻底的) completely (adv. 彻底地；完整地) discover (v. 发现，找到) discovery (n. 发现) punish (v. 处罚，惩罚) punishment (n. 处罚，惩罚) 2. 词汇变形综合检测 1.This is the ___________ (bad) sandstorm the city has faced in recent years—it destroyed many trees and crops. 2.Don’t make the classroom ___________ (tidy). We should keep our learning space clean and organized. 3.All _________ (use) of the community park must follow the rules: no littering and no picking flowers. 4.Harmful gases from the factory are poured ________ (direct) into the air, which makes people feel sick. 5.The _________ (short) of fresh water in this village has lasted for half a year, so villagers have to carry water from miles away. 6.After three months without rain, the crops in the field became _________ (thirst) and started to wilt. 7.With the help of volunteers, the polluted river has _________ (complete) returned to its clear state. 8.The scientist’s _________ (discover) about “how trees stop sandstorms” was published in a famous environmental magazine. 9.Anyone who breaks the environmental protection _________ (law) will face serious _________ (punish). 10.Thanks to everyone’s efforts, there is _________ (where) as dirty as the old waste area in our town now. 【答案】1. worst；2. untidy；3. users；4. directly；5. shortage；6. thirsty；7. completely；8. discovery；9. law; punishment；10. nowhere. 1. 短语梳理 核心短语 中文含义 cut down (trees) 砍倒（树木） stop...from doing sth. 阻止…… 做某事 change into 变成；转变为 as a result 结果；因此 be harmful to 对…… 有害 save water 节约用水 take action (to do) 采取行动（做某事） deal with 处理；应对 build...project 建设…… 工程 短语综合检测 （1）单项选择 1.People must stop ______ too many trees, or more land will change into desert. A. cutting down B. stopping from C. dealing with D. taking action 2.Trees can ______ the water ______ washing the earth away, so we need to plant more. A. change; into B. stop; from C. take; action D. save; for （2）选词填空 用方框中短语的适当形式填空，每词限用一次（有两项多余）。 cut down, as a result, be harmful to, save water, take action, stop...from 3. Farmers ____________ many trees to grow crops years ago. ____________, sandstorms came every spring. 4. We should ____________ in daily life because water is important for forests. 5. The government has ____________ to protect the ozone layer, which ____________ human health. （3）句子翻译 6.树木能阻止风把土壤吹走，还能涵养水源。（stop...from, save water） _________________________________________________________________________________ 7.砍倒太多树木对动植物有害，因此我们必须采取行动保护它们。（cut down, be harmful to, take action） _________________________________________________________________________________ 【答案】 1.A 2. B 3. cut down; As a result 4. save water 5. taken action; is harmful to 6.Trees can stop the wind from blowing the earth away and save water. 7.Cutting down too many trees is harmful to animals and plants, so we must take action to protect them. 1. 【高分写作句型】角度1：描述 “环境问题及危害” 1. 课文例句 There were sandstorms before. While I was walking down the street, I couldn’t see anything. Cutting down trees is harmful to human beings, animals and plants. 2. 仿写练习 过去：我们城市以前有严重的空气污染。冬天雾霾天时，人们出门必须戴口罩。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】There was serious air pollution in our city before. During smog days in winter, people had to wear masks when going out. 危害：空气污染对我们的肺部有害，还会让能见度( visibility)降低。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】Air pollution is harmful to our lungs and also makes visibility low. 2. 【高分写作句型】说明 “树木 / 森林的作用” 1. 课文例句 Trees can stop the wind from blowing the earth away. A lot of water can be saved by forests. Trees can also stop the water from washing the earth away. 2. 仿写练习 防风：社区种的树能阻止风把灰尘吹进窗户。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】The trees planted in the community can stop the wind from blowing dust into windows. 涵养水源：这些树还能储存雨水，让草坪(lawn)保持绿色。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】These trees can also save rainwater and keep the lawn green. 3. 【高分写作句型】介绍 “环保措施” 1. 课文例句 Now we have built “The Green Great Wall”. Our environment has become much better. Everyone should care for wild animals and plant more trees. 2. 仿写练习 学校措施：我们学校建立了 “垃圾分类角”，环境变得更整洁了。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】Our school has built a “rubbish sorting corner”, and the environment has become much cleaner. 个人行动：我们应该每天节约用水，还可以在校园里种小树苗(sapling)。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】We should save water every day and we can also plant small saplings in the schoolyard. 4. 【高分写作句型】表达 “环保呼吁” 1. 课文例句 All these problems are very serious, so we must do something now. We should do everything we can to protect the environment. 2. 仿写练习 呼吁行动：环境问题很严重，所以我们必须立即采取行动。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】 Environmental problems are very serious, so we must take action at once. 展望：如果每个人都参与环保，我们的地球会变得更美好。 ____________________________________________________________________________________ ____________________________________________________________________________________ 【参考答案】If everyone takes part in environmental protection, our earth will become better. 1. 语法精讲(不定代词与副词) 语法要点 常见词 考点提示 表 “无” none (of), nowhere, nothing 考点 1：“none” 可指人/物，后接 “of”（如 None of the trees were cut down）； 考点 2：“anywhere” 用于否定句/疑问句，肯定句用 “everywhere”（如 We can see trees everywhere ） 表 “所有” everyone, everything, everywhere 考点 1：“everyone” 表 “所有人”，后接单数动词（Everyone likes→正确）； 考点 2：“everything” 表 “所有事物”，不用于指代人（如 Everything is here→指物） 表 “任何” anyone, anything, anywhere 考点 1：“anyone” 用于疑问句/否定句，肯定句用 “someone”； 考点 2：“anything” 后接 “but” 表 “除了…… 都”（如 Anything but pollution→除了污染都可以） 2. 语法综合检测 （1）语法填空 1．Mike didn’t go (任何地方) special on vacation. 【答案】anywhere 【解析】句意：迈克假期没有去任何特别的地方。根据“Mike didn’t go...special on vacation.”及汉语提示可知，anywhere表示“任何地方”，符合语境。故填anywhere。 2．Linda’s room is not tidy. Her books are (到处，处处). 【答案】everywhere 【解析】句意：Linda的房间不整洁。她的书到处都是。everywhere“到处，处处”，地点副词。故填everywhere。 3．Let’s go (到某处； 在某处) different today. 【答案】somewhere 【解析】句意：今天我们去一个不同的地方吧。“到某处； 在某处”的英文表达是somewhere，副词。故填somewhere。 4．I haven’t seen my cat (somewhere) since this morning. 【答案】anywhere 【解析】句意：从今天早上起，我就没在‌任何地方‌见到我的猫。somewhere“在某处”，常用于肯定句；anywhere“在任何地方”，常用于否定句和疑问句。根据“haven’t”可知，此句为否定句。故填anywhere。 5．I can’t find my toy car. Does (somebody) know where it is? 【答案】anybody 【解析】句意：我找不到我的玩具汽车。有人知道它在哪里吗？根据提示可知，本句为一般疑问句。somebody意为“某人”，常用于肯定句中；anybody意为“某人；任何人”，常用于否定句和疑问句中。故填anybody。 6．Did you go (somewhere) interesting? 【答案】anywhere 【解析】句意：你去什么有趣的地方了吗？根据“Did you go ... interesting?”可知，此句为一般疑问句，应用anywhere，意为“任何地方”。故填anywhere。 7．I hope e goes well with you. 【答案】(e)verything 【解析】句意：我希望你一切顺利。分子句子可知考查固定句型everything goes well with you“祝你一切都顺利”，故填(e)verything。 8． (anybody) is waiting for you at the school gate, Bill. 【答案】Somebody 【解析】句意：有人在校门口等你，比尔。anybody“某人，任何人”，常用于否定句和疑问句中；分析句子结构可知，此句为肯定句，somebody“某人”，常用于肯定句中，句首首字母要大写。故填Somebody。 9．Sally has never read the book, so she knows n about it. 【答案】(n)othing 【解析】句意：萨莉从来没有读过这本书，所以她对它一无所知。结合“Sally has never read the book”和首字母“n”可知，萨莉从来没有读过这本书，所以她对它一无所知，所以“nothing没有什么”符合语境。故填(n)othing。 10．I am in a school volunteer group where I can do something (meaning) to help others. 【答案】meaningful 【解析】句意：我在一个学校志愿者小组，在那里我可以做一些有意义的事情来帮助别人。根据“where I can do something…to help others”以及提示词可知，此处指“做一些有意义的事情”，meaningful“有意义的”，形容词，置于something之后。故填meaningful。 话题综合训练 一、单项选择 1．If your friend sends you a message to borrow money from you on the Internet, you’d better call him ________ first to make sure of that. A．directly B．finally C．suddenly 【答案】A 【详解】句意：如果你的朋友在网上给你发消息找你借钱，你最好先直接给他打电话确认一下。 考查副词辨析。 directly直接地；finally最终；suddenly突然地。根据“If your friend sends you a message to borrow money from you on the Internet,”可知，当朋友在网上发消息借钱时，为了确认信息的真实性，应该直接打电话给对方进行核实。故选A。 2．AI can’t take the place of humans ________ it can do lots of things. A．and B．though C．because 【答案】B 【详解】句意：人工智能不能代替人类，尽管它能做许多事。 考查连词辨析。and和；though尽管；because因为。根据“AI can’t take the place of humans”和“it can do lots of things”可知此处引导让步状语从句，故选B。 3．— Did you find the film exciting, Laura? — No, I didn’t. It’s boring. I ________ fell asleep halfway! A．nearly B．hardly C．probably 【答案】A 【详解】句意：——劳拉，你觉得这部电影令人兴奋吗？——不，我不觉得。它很无聊。我中途几乎睡着了！ nearly几乎，差不多； hardly几乎不；probably可能，大概。根据“It’s boring.”可知，电影无聊到“几乎”睡着，nearly符合语境。故选A。 4．—I tried many ways to solve this problem but ________ of them worked. —Don’t give up and believe in yourself. A．both B．neither C．none 【答案】C 【详解】句意：——我尝试了很多方法来解决这个问题，但没有一个奏效。——不要放弃，相信你自己。 考查代词辨析。 both表示两者都；neither表示两者都不；none表示三者及三者以上的否定。根据“Don’t give up and believe in yourself.”可知，这些方法都不奏效。故选C。 5．Jerry is new in our class, so _________ knows where he comes from. A．nobody B．somebody C．everybody 【答案】A 【详解】句意：杰瑞是我们班的新生，所以没人知道他来自哪里。 考查代词辨析。nobody没有人；somebody某人；everybody每个人。根据 “Jerry is new in our class” 可知，因为杰瑞是新生，所以没人知道他来自哪里，用nobody。故选A。 6．________ he didn’t win a gold medal in the Olympic Games, ________ his fans and country still feel proud of him. A．Although; / B．Although; but C．But; / 【答案】A 【详解】句意：尽管他没有在奥运会上赢得金牌，但他的粉丝和国家仍然为他感到骄傲。 考查连词的用法。Although尽管，引导让步状语从句时，不与but连用；but但是，表转折。英语中although和but不能同时使用，排除B，由“he didn’t win a gold medal in the Olympic Games”和“his fans and country still feel proud of him.”可知，前半句是后半句的让步状语，所以用although放在句首引导让步状语从句，故选A。 7．No one can ________ making mistakes. After all, nobody is perfect in the world. A．suggest B．request C．avoid 【答案】C 【详解】句意：没有人能避免犯错。毕竟，世界上没有人是完美的。 考查动词辨析。suggest建议；request请求；avoid避免。根据“After all, nobody is perfect in the world.”可知，因为没有人是完美的，所以没有人能避免犯错，avoid“避免”符合句意，情态动词can后接动词原形。故选C。 8．After playing soccer for an hour, I was really ________ and needed a drink of water. A．hungry B．sleepy C．thirsty 【答案】C 【详解】句意：踢了一个小时的足球之后，我口渴得厉害，需要喝点水。 考查形容词辨析。hungry饥饿的；sleepy困倦的；thirsty口渴的。根据“needed a drink of water”可知，需要喝点水，所以是口渴了。故选C。 9．________ it’s raining outside, the football match is still going on. A．Though B．So C．And 【答案】A 【详解】句意：虽然外面在下雨，但足球比赛仍在进行。 考查连词辨析。Though尽管，虽然；So因此；And而且。根据“... it’s raining outside, the football match is still going on.”可知，指的是尽管外面在下雨，但足球比赛仍在进行，故应用Though引导让步状语从句。故选A。 10．Creative ideas can come from ________ around us. A．everything B．nobody C．nowhere 【答案】A 【详解】句意：创意可以来自我们周围的一切。 考查不定代词。everything每件事物，一切事物；nobody没有人；nowhere无处，哪里都不。根据“Creative ideas can come from...around us.”可知我们周围的任何事物都有可能带来创意。故选A。 二、完形填空 When people talk about air pollution, they are usually thinking about outdoor air pollution. But do you know that there is also air pollution inside homes, 11 , hotels and other buildings? The air in your home can be 2 to 100 times more polluted than the air outdoors! According to some American 12 , 50% of the illnesses have something to do with the polluted indoor air. A lot of pollution 13 indoor activities such as smoking and cooking. We know most people 14 about 80%-90% of their time inside buildings. So it is important to take indoor air pollution 15 , too. Air pollution influences our health in many 16 . When the air is polluted, it does harm to not only the 17 people, but also the old people with health problems. Indoor air pollution can 18 people’s eyes, noses and throats. Air pollution, both indoor and outdoor, can also cause 19 lung and heart disease! In the Great London Fog in 1952, 4 000 people 20 in a few days because of the pollution! It is said that half a million young children and women die each year in India because of indoor air pollution! 11．A．offices B．playgrounds C．parks D．streets 12．A．teachers B．farmers C．doctors D．workers 13．A．gets to B．comes from C．changes into D．refers to 14．A．take B．cost C．spend D．pay 15．A．luckily B．happily C．rapidly D．seriously 16．A．ways B．activities C．games D．places 17．A．rich B．poor C．young D．old 18．A．beat B．steal C．cause D．hurt 19．A．nice B．good C．terrible D．happy 20．A．left B．died C．lived D．went 【答案】 11．A 12．C 13．B 14．C 15．D 16．A 17．C 18．D 19．C 20．B 【导语】本文主要讲述了室内空气污染及危害。 11．句意：但家庭、办公室、酒店和其他建筑物内也存在空气污染，这你知道吗？ offices办公室，办公楼；playgrounds操场；parks公园；streets街道。根据“other buildings”可知，此处应指一些建筑物。故选A。 12．句意：一些美国医生指出，50% 的疾病与室内空气污染有关。 teachers老师；farmers农民；doctors医生；workers工人。根据“50% of the illnesses…”可知，此处指医生。故选C。 13．句意：很多污染来自室内活动，如吸烟和烹饪。 gets to到达；comes from来自；changes into换成；refers to提到。根据“such as smoking and cooking”并结合选项可知，此处指污染源。故选B。 14．句意：我们知道，大多数人大约有80%-90%的时间是在建筑物内度过的。 take花费（时间），主语通常了it；cost花费（金钱），主语为事物；spend花费（时间或金钱），主语为人；pay支付（金钱），主语为人。空处所在句的主语为“most people”，宾语为表示时间的“about 80%-90% of their time”，所以spend符合。故选C。 15．句意：因此，重视室内空气污染也很重要。 luckily幸运地；happily开心地；rapidly快速地；seriously严肃地。根据语境可知，此处指重视室内空气污染也很重要，take…seriously“严肃对待……”，固定词组。故选D。 16．句意：空气污染会在很多方面影响我们的健康。 ways方面；activities活动；games游戏；places地点。根据语境并结合选项可知，此处指空气污染会在很多方面影响我们的健康。故选A。 17．句意：当空气受到污染时，它不仅会对年轻人造成伤害，也会对有健康问题的老年人造成伤害。 rich富有的；poor贫穷的；young年轻的；old年老的。根据空后的“the old people”并结合选项可知，此处指年轻人。故选C。 18．句意：室内空气污染会伤害人们的眼睛、鼻子和喉咙。 beat击败；steal偷窃；cause导致；hurt伤害。根据上文“When the air is polluted, it does harm to not only the…people, but also the old people with health problems.”并结合选项可知，此处指伤害人们的眼睛、鼻子和喉咙。故选D。 19．句意：室内和室外的空气污染还会导致可怕的肺病和心脏病！ nice好的；good好的；terrible可怕的；happy开心的。根据空后的“lung and heart disease”可知，此处指可怕的疾病。故选C。 20．句意：在1952年的伦敦烟雾事件中，由于污染，几天内就有4000人死亡！ left离开；died死亡；lived居住；went去。根据常识可知，在1952年的伦敦烟雾事件中，由于污染，几天内就有4000人死亡。故选B。 三、补全对话（六选五） 根据对话内容，从下面选出恰当的句子补全对话，有一个选项是多余的。 Henry: Hi, Becky. Becky: Hi, Henry. 21 Henry: Some photos. Becky: Let me have a look. Henry: 22 Becky: Oh, too bad. The factory is causing a lot of pollution. Henry: It’s terrible. 23 Becky: What about the second photo? Henry: 24 Becky: 25 Henry: To save energy, I guess. A．It’s a recycling centre. B．What’s in your hand? C．Look at the factory in this photo. D．Why do we need a recycling centre? E．We should recycle waste. F．Something must be done to stop the pollution. 【答案】21．B 22．C 23．F 24．A 25．D 【导语】本文是一则对话，Henry向Becky展示照片，第一张是造成污染的工厂，两人讨论治理污染的必要性；第二张是回收中心，由此引出回收利用对节能的意义。 21．根据“Hi, Becky.”和“Hi, Henry.”以及“Some photos.”可知，Becky在回应Henry的问候后需要询问一个具体事物。选项B“你手里拿的是什么？”符合语境，故选B。 22．根据“Some photos.”和“Let me have a look.”可知，Henry需要展示照片内容。选项C“看这张照片里的工厂。”符合语境，故选C。 23．根据“Oh, too bad. The factory is causing a lot of pollution.”和“It’s terrible.”可知，Henry需要表达对污染的态度。选项F“必须采取措施阻止污染。”符合语境，故选F。 24．根据“What about the second photo?”可知，Henry需要描述另一张照片。选项A“这是个回收中心。”符合语境，故选A。 25．根据“To save energy, I guess.”可知，Becky需要提问原因。选项D“为什么我们需要回收中心？”符合语境，故选D。 四、阅读理解 The earth is 4.6 billion years old. We humans have lived on the earth for only 35,000 years, but during this period, we have changed our planet a lot in many ways. Some things we have done are very good for the earth while others are bad. ________ All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disappearing. ________ In big cities, cars and buses have polluted the air. Now many people in cities have health problems. ________ Factories have also polluted the land and the water. As a result, many rivers and lakes are now dead. ________ Around the earth, there’s a special kind of oxygen called “ozone” (O3) . It is important to the earth. But now air pollution is destroying it and making a very big hole in the ozone layer. Too much harmful radiation from the sun passes through the hole and reaches the earth directly. This is very dangerous because this kind of radiation can cause cancer. ________ Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal and wood. This has formed a blanket around the earth. The heat from the sun can’t escape so the temperature is rising. This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change. All these problems are very serious, so we must do something now. 26．Which one is the correct order of the best titles for Paragraphs 2-6? 1. Traffic pollution    2. Factory pollution     3. Fewer trees 4. The ozone hole    5. More carbon dioxide A．3-2-1-4-5 B．3-2-4-5-1 C．3-1-2-4-5 D．3-1-4-2-5 27．What does our planet mean here? A．The sun. B．Mars. C．The moon. D．The earth. 28．In the passage, blanket refers to `________. A．carbon dioxide around the earth B．the ozone layer in the sky C．the forests around the world D．pollution all over the world 29．The word “it” in Paragraph 5 refers to ________. A．CO2 B．O3 C．O2 D．H2O 30．What is the best title for this passage? A．Environmental Problems B．Pollution on the Earth C．Hope for the Future D．The Greenhouse Effect 【答案】26．C 27．D 28．A 29．B 30．A 【导语】本文是一篇说明文，主要介绍了地球上因为人类活动产生的各种污染。 26．细节理解题。根据第二段到第六段可知，每个段落的主旨依次是：树木砍伐、交通污染、工厂污染、臭氧空洞以及二氧化碳超标。故选C。 27．细节理解题。根据“We humans have lived on the earth ”可知，此处指的就是地球。故选D。 28．细节理解题。根据“Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal and wood. This has formed a blanket around the earth.”可知，此处毯子指的是二氧化碳围绕着地球。故选A。 29．细节理解题。根据“Around the earth, there’s a special kind of oxygen called “ozone” (O3) . It is important to the earth. But now air pollution is destroying it”可知，此处指的是臭氧，即O3。故选B。 30．最佳标题题。本文主要介绍了地球上各种环境问题，不仅有“Pollution”，也有“Greenhouse Effect”。故选A。 五、任务型阅读 Most environmental pollution on the earth comes from humans and their inventions, such as cars or plastic. Today, air pollution is mainly caused by waste gases of cars, leading to climate change. Plastics fill our oceans and create a serious health problem to marine animals. And what about the electric light, one of the greatest human inventions of all time? Electric light can be a beautiful thing. It can guide us home when the sun goes down, keep us safe and make our homes bright. However, it has started to influence the environment. Light pollution, the improper use of outdoor light, is influencing human health and wildlife behavior. Light pollution is a global problem. Some of the most light-polluted countries in the world are Singapore, Qatar and Kuwait. And the most faraway places on the earth, such as Greenland, Central African Republic and Niue, are in darkness. Sky glow (人工白昼) is the brightening of the night sky, mostly over cities, because of the electric lights of cars, street lamps, offices, factories, outdoor advertising and buildings. People living in cities with high levels of sky glow have a hard time seeing many stars at night. Astronomers (天文学家) are especially worried about sky glow pollution, because it prevents them from watching stars. More than 80% of the world’s population live under sky glow. 31、32题完成句子；33—35题简略回答问题。 31．Air pollution to climate change. 32．Light pollution can influence and wildlife behavior. 33．Where can we see sky glow? 34．Why do astronomers worry about sky glow pollution? 35．Do you like sky glow? Why or why not? 【答案】31．leads/is leading 32．human health 33．Mostly over cities. 34．Because it prevents them from watching stars. 35．No, I don’t. Because I can’t see many beautiful stars at night. (言之有理即可) 【导语】本文主要介绍了光污染，以及光污染会造成哪些影响。 31．根据“Today, air pollution is mainly caused by waste gases of cars, leading to climate change.”可知，空气污染正在导致气候变化。故填leads/is leading。 32．根据“Light pollution, the improper use of outdoor light, is influencing human health and wildlife behavior.”可知，光污染正在影响人类健康和野生动物的行为。故填human health。 33．根据“Sky glow is the brightening of the night sky, mostly over cities, because of the electric lights of cars, street lamps, offices, factories, outdoor advertising and buildings.”可知，人工白昼主要出现在城市上空。故填Mostly over cities. 34．根据“Astronomers are especially worried about sky glow pollution, because it prevents them from watching stars.”可知，天文学家担心光污染主要是因为这使他们无法观测恒星。故填Because it prevents them from watching stars. 35．本题是开放性试题，言之有理即可，参考答案为No, I don’t. Because I can’t see many beautiful stars at night. 六、短文填空 阅读下面短文，根据语境和所给单词的提示，在每个空格内填入一个适当的单词。 Have you ever heard of the term “white pollution”? It 36._____________ (be) a kind of serious environmental problem. The white color usually 37._____________ (refer) to something clear and clean. However, white pollution is very 38._____________ (harm). Because of single-use plastic tableware (餐具) and thin plastic bags, white pollution is becoming more and more serious. They’re easy to use and have already become a part of 39._____________ (we) daily life. When people ask for take-out food, it usually comes with single-use plastic boxes. When people go shopping, they can often get plastic bags. People use too many plastic products because 40._____________ their convenience. Now, white pollution has become 41._____________ big problem. White pollution affects the environment 42._____________ (main) in two ways. On the one hand, plastic waste can be seen everywhere in the natural environment. It makes cities, towns, hills, lakes… dirty. On the other hand, plastic waste can stay for 43._____________ (century), resulting in soil pollution and water pollution. It can even cause many illnesses. What’s worse, animals might die after 44._____________ (eat) plastic rubbish by mistake on the land or in the water. And it’s hard to solve the problem. Now everyone should help reduce white pollution 45._____________ recycle plastic waste. 【答案】 36．is 37．refers 38．harmful 39．our 40．of 41．a 42．mainly 43．centuries 44．eating 45．and 【导语】本文是一篇说明文，主要介绍了“白色污染”及其危害。 36．句意：这是一种严重的环境问题。根据句意及语境可知，句子是陈述现在的一个事实，所以时态为一般现在时；主语It是第三人称单数，所以be动词应用单数形式is，故填is。 37．句意：白色通常指的是清晰干净的东西。根据“usually”及语境可知，句子陈述的是一个事实，所以时态为一般现在时；主语The white color是第三人称单数，所以谓语动词应用三单形式refers，故填refers。 38．句意：然而，白色污染是非常有害的。分析句子结构可知，空处在句中作表语；所以应用形容词，harm的形容词是harmful，故填harmful。 39．句意：它们很容易使用，已经成为我们日常生活的一部分。根据空后的名词“life”可知，空处应用we的形容词性物主代词our，来修饰名词，故填our。 40．句意：人们使用太多的塑料制品是因为它们的方便。根据“because”及句意可知，表示“因为，由于”，因为已有“because”，所以空处应填of，构成短语“because of因为，由于”，故填of。 41．句意：现在，白色污染已经成为一个大问题。根据空后的名词“problem”可知，其为可数名词单数形式，所以前面应用冠词来修饰；根据句意及语境可知，无特指，且空后的big是以辅音音素开头的单词，所以应用不定冠词a，故填a。 42．句意：白色污染对环境的影响主要有两个方面。分析句子结构可知，空处应用副词作状语，main的副词形式是mainly，故填mainly。 43．句意：另一方面，塑料垃圾可能会持续几个世纪，导致土壤污染和水污染。根据提示词“century”可知，其为可数名词，且空前没有表示单数的冠词，所以应用复数形式centuries，故填centuries。 44．句意：更糟糕的是，动物可能会在陆地或水中误食塑料垃圾后死亡。根据空前的介词“after”可知，空处应用动词的-ing形式，eat的-ing形式是eating，故填eating。 45．句意：现在每个人都应该帮助减少白色污染和回收塑料垃圾。分析句子结构可知，“reduce white pollution”和“recycle plastic waste”为并列关系，均作动词“help”的宾语，所以应用and连接，故填and。 七、补全对话 根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。 Maria: Hi, Jane. 46._____________________________________? Jane: I am writing a report. Maria: 47.____________________________________? Jane: My report is about the water pollution in the river in front of our school. Maria: 48.____________________________________? Jane: Yes, I did a survey about the river. My classmates Emily, Emma and I walked about ten kilometers along the river. Maria: Did you find out what polluted the river? Jane: 49.____________________________________. A paper factory was pouring waste water into the river. The water smelled terrible. Maria: That’s too bad. Did you go into the factory and tell them about the pollution? Jane: No, we didn’t. We are going to send out the report. Maria: 50.____________________________________? Jane: How about sending it to City Morning Paper? Maria: Good idea. 【答案】46．What are you doing / What are you writing 47．What is your report about / What is it about 48．Did you do a survey about the river 49．Yes/Sure 50．Where are you going to send your report 【导语】本文是两人关于一份报告的对话。 46．根据答句“I am writing a report.”可知，此空问“你在做/写什么”，时态为现在进行时，故填What are you doing / What are you writing。 47．根据答句“My report is about the water pollution in the river in front of our school.”可知，此空问“你的报告是关于什么的”，故填What is your report about / What is it about。 48．根据答句“Yes, I did a survey about the river.”可知，此空问“你做过关于这条河的调查吗”，时态为一般过去时，故填Did you do a survey about the river。 49．根据问句“Did you find out what polluted the river?”及下文“A paper factory was pouring waste water into the river..”可知，此空为肯定回答，故填Yes/Sure。 50．根据“We are going to send out the report.”及下文“How about sending it to City Morning Paper?”可知，此空是问“报告送去哪”，时态用一般将来时，故填Where are you going to send your report。 第 1 页 第 2 页 学科网（北京）股份有限公司 $Unit 2 Saving the Earth Unit 2 Topic 2 阶段复习 1. 情境语篇过单词 中文翻译 家乡的环境重生记 五年前，我家乡的环境状况糟透了，堪称过去十年里最差的时期。每年春天，可怕的沙暴总会袭来 —— 狂风卷着沙粒，在地面形成一层厚厚的“沙毯”，连野生的灌木都难以存活。曾经的绿地几乎彻底地变成了沙漠，虽然村民们尝试浇水，但水分很快从土壤的洞里渗出，根本留不住。 更糟的是，水资源短缺让土地变得缺水，连村民的饮用水都要从远处运；街道上到处是垃圾，既不整洁的又散发异味，没有人愿意主动清理。有些使用者还会无礼地乱扔废品，甚至有人为了开垦耕地，直接破坏仅剩的植被 —— 这种行为可能会让环境进一步恶化，当时每个人都担心：未来我们会不会无处可居？ 后来，环保专家发现问题根源后，建议大家避免浪费资源、重复使用水资源；政府也出台了法律：没有一个人能随意破坏环境，对粗鲁的破坏者会进行惩罚，同时采取措施减少污染。随着时间推移，沙暴变少了，沙漠边缘开始长出小草，连野生的小鸟都回来了 —— 曾经绝望的环境，终于迎来了重生。 英语短文 The Rebirth of My Hometown’s Environment Five years ago, the environmental ______ (1) of my hometown was terrible — it was the ______ (2) period in the past decade. Every spring, terrible ______ (3) would hit: strong winds carried ______ (4) grains, which ______ (5) a thick “sand ______ (6)” on the ground. Even ______ (7) shrubs(灌木) could hardly survive. The once green land ______ (8) ______ (9) turned into a ______ (10). ______ (11) villagers tried to water the land, the water soon ______ (12) from the ______ (13) in the soil and couldn’t stay. Worse still, the water ______ (14) made the land ______ (15), and even the villagers’ drinking water had to be transported from far away. The streets were full of ______ (16), which was both ______ (17) and smelly. ______ (18) was willing to clean it up actively. Some ______ (19) even threw waste ______ (20) , and a few people even ______ (21) destroyed the remaining vegetation to open up farmland. This behavior ______ (22) make the environment worse. At that time, ______ (23) worried: Would we have ______ (24) to live in the future? Later, after environmental experts ______ (25) the root cause of the problem, they suggested that everyone ______ (26) wasting resources and ______ (27) water. The government also made a ______ (28) : ______ (29) could damage the environment casually. Those ______ (30) destroyers would be ______ (31), and measures were taken to ______ (32) pollution. As time passed, ______ (33) became fewer, grass began to grow on the edge of the desert, and even ______ (34) birds came back — the once desperate environment finally achieved rebirth. 2. 易考词汇变形归纳梳理 原形 变形 bad (adj. 坏的) worst (adj. 最差的，最糟的) tidy (adj. 整洁的) untidy (adj. 不整洁的，凌乱的) body (n. 人；身体) nobody (pron. 没有人) where (adv. 哪里) nowhere (adv. 无处；哪里都不) use (v. 使用；n. 用途) user (n. 使用者；用户) direct (adj. 直接的) directly (adv. 直接地) short (adj. 短缺的) shortage (n. 不足；缺少；短缺) thirst (n. 口渴；缺水) thirsty (adj. 缺水的；（口）渴的) complete (adj. 完整的；彻底的) completely (adv. 彻底地；完整地) discover (v. 发现，找到) discovery (n. 发现) punish (v. 处罚，惩罚) punishment (n. 处罚，惩罚) 2. 词汇变形综合检测 1.This is the ___________ (bad) sandstorm the city has faced in recent years—it destroyed many trees and crops. 2.Don’t make the classroom ___________ (tidy). We should keep our learning space clean and organized. 3.All _________ (use) of the community park must follow the rules: no littering and no picking flowers. 4.Harmful gases from the factory are poured ________ (direct) into the air, which makes people feel sick. 5.The _________ (short) of fresh water in this village has lasted for half a year, so villagers have to carry water from miles away. 6.After three months without rain, the crops in the field became _________ (thirst) and started to wilt. 7.With the help of volunteers, the polluted river has _________ (complete) returned to its clear state. 8.The scientist’s _________ (discover) about “how trees stop sandstorms” was published in a famous environmental magazine. 9.Anyone who breaks the environmental protection _________ (law) will face serious _________ (punish). 10.Thanks to everyone’s efforts, there is _________ (where) as dirty as the old waste area in our town now. 1. 短语梳理 核心短语 中文含义 cut down (trees) 砍倒（树木） stop...from doing sth. 阻止…… 做某事 change into 变成；转变为 as a result 结果；因此 be harmful to 对…… 有害 save water 节约用水 take action (to do) 采取行动（做某事） deal with 处理；应对 build...project 建设…… 工程 短语综合检测 （1）单项选择 1.People must stop ______ too many trees, or more land will change into desert. A. cutting down B. stopping from C. dealing with D. taking action 2.Trees can ______ the water ______ washing the earth away, so we need to plant more. A. change; into B. stop; from C. take; action D. save; for （2）选词填空 用方框中短语的适当形式填空，每词限用一次（有两项多余）。 cut down, as a result, be harmful to, save water, take action, stop...from 3. Farmers ____________ many trees to grow crops years ago. ____________, sandstorms came every spring. 4. We should ____________ in daily life because water is important for forests. 5. The government has ____________ to protect the ozone layer, which ____________ human health. （3）句子翻译 6.树木能阻止风把土壤吹走，还能涵养水源。（stop...from, save water） _________________________________________________________________________________ 7.砍倒太多树木对动植物有害，因此我们必须采取行动保护它们。（cut down, be harmful to, take action） _________________________________________________________________________________ 1. 【高分写作句型】角度1：描述 “环境问题及危害” 1. 课文例句 There were sandstorms before. While I was walking down the street, I couldn’t see anything. Cutting down trees is harmful to human beings, animals and plants. 2. 仿写练习 过去：我们城市以前有严重的空气污染。冬天雾霾天时，人们出门必须戴口罩。 ____________________________________________________________________________________ ____________________________________________________________________________________ 危害：空气污染对我们的肺部有害，还会让能见度( visibility)降低。 ____________________________________________________________________________________ ____________________________________________________________________________________ 2. 【高分写作句型】说明 “树木 / 森林的作用” 1. 课文例句 Trees can stop the wind from blowing the earth away. A lot of water can be saved by forests. Trees can also stop the water from washing the earth away. 2. 仿写练习 防风：社区种的树能阻止风把灰尘吹进窗户。 ____________________________________________________________________________________ ____________________________________________________________________________________ 涵养水源：这些树还能储存雨水，让草坪(lawn)保持绿色。 ____________________________________________________________________________________ ____________________________________________________________________________________ 3. 【高分写作句型】介绍 “环保措施” 1. 课文例句 Now we have built “The Green Great Wall”. Our environment has become much better. Everyone should care for wild animals and plant more trees. 2. 仿写练习 学校措施：我们学校建立了 “垃圾分类角”，环境变得更整洁了。 ____________________________________________________________________________________ ____________________________________________________________________________________ 个人行动：我们应该每天节约用水，还可以在校园里种小树苗(sapling)。 ____________________________________________________________________________________ ____________________________________________________________________________________ 4. 【高分写作句型】表达 “环保呼吁” 1. 课文例句 All these problems are very serious, so we must do something now. We should do everything we can to protect the environment. 2. 仿写练习 呼吁行动：环境问题很严重，所以我们必须立即采取行动。 ____________________________________________________________________________________ ____________________________________________________________________________________ 展望：如果每个人都参与环保，我们的地球会变得更美好。 ____________________________________________________________________________________ ____________________________________________________________________________________ 1. 语法精讲(不定代词与副词) 语法要点 常见词 考点提示 表 “无” none (of), nowhere, nothing 考点 1：“none” 可指人/物，后接 “of”（如 None of the trees were cut down）； 考点 2：“anywhere” 用于否定句/疑问句，肯定句用 “everywhere”（如 We can see trees everywhere ） 表 “所有” everyone, everything, everywhere 考点 1：“everyone” 表 “所有人”，后接单数动词（Everyone likes→正确）； 考点 2：“everything” 表 “所有事物”，不用于指代人（如 Everything is here→指物） 表 “任何” anyone, anything, anywhere 考点 1：“anyone” 用于疑问句/否定句，肯定句用 “someone”； 考点 2：“anything” 后接 “but” 表 “除了…… 都”（如 Anything but pollution→除了污染都可以） 2. 语法综合检测 （1）语法填空 1．Mike didn’t go (任何地方) special on vacation. 2．Linda’s room is not tidy. Her books are (到处，处处). 3．Let’s go (到某处； 在某处) different today. 4．I haven’t seen my cat (somewhere) since this morning. 5．I can’t find my toy car. Does (somebody) know where it is? 6．Did you go (somewhere) interesting? 7．I hope e goes well with you. 8． (anybody) is waiting for you at the school gate, Bill. 9．Sally has never read the book, so she knows n about it. 10．I am in a school volunteer group where I can do something (meaning) to help others. 话题综合训练 一、单项选择 1．If your friend sends you a message to borrow money from you on the Internet, you’d better call him ________ first to make sure of that. A．directly B．finally C．suddenly 2．AI can’t take the place of humans ________ it can do lots of things. A．and B．though C．because 3．— Did you find the film exciting, Laura? — No, I didn’t. It’s boring. I ________ fell asleep halfway! A．nearly B．hardly C．probably 4．—I tried many ways to solve this problem but ________ of them worked. —Don’t give up and believe in yourself. A．both B．neither C．none 5．Jerry is new in our class, so _________ knows where he comes from. A．nobody B．somebody C．everybody 6．________ he didn’t win a gold medal in the Olympic Games, ________ his fans and country still feel proud of him. A．Although; / B．Although; but C．But; / 7．No one can ________ making mistakes. After all, nobody is perfect in the world. A．suggest B．request C．avoid 8．After playing soccer for an hour, I was really ________ and needed a drink of water. A．hungry B．sleepy C．thirsty 9．________ it’s raining outside, the football match is still going on. A．Though B．So C．And 10．Creative ideas can come from ________ around us. A．everything B．nobody C．nowhere 二、完形填空 When people talk about air pollution, they are usually thinking about outdoor air pollution. But do you know that there is also air pollution inside homes, 11 , hotels and other buildings? The air in your home can be 2 to 100 times more polluted than the air outdoors! According to some American 12 , 50% of the illnesses have something to do with the polluted indoor air. A lot of pollution 13 indoor activities such as smoking and cooking. We know most people 14 about 80%-90% of their time inside buildings. So it is important to take indoor air pollution 15 , too. Air pollution influences our health in many 16 . When the air is polluted, it does harm to not only the 17 people, but also the old people with health problems. Indoor air pollution can 18 people’s eyes, noses and throats. Air pollution, both indoor and outdoor, can also cause 19 lung and heart disease! In the Great London Fog in 1952, 4 000 people 20 in a few days because of the pollution! It is said that half a million young children and women die each year in India because of indoor air pollution! 11．A．offices B．playgrounds C．parks D．streets 12．A．teachers B．farmers C．doctors D．workers 13．A．gets to B．comes from C．changes into D．refers to 14．A．take B．cost C．spend D．pay 15．A．luckily B．happily C．rapidly D．seriously 16．A．ways B．activities C．games D．places 17．A．rich B．poor C．young D．old 18．A．beat B．steal C．cause D．hurt 19．A．nice B．good C．terrible D．happy 20．A．left B．died C．lived D．went 三、补全对话（六选五） 根据对话内容，从下面选出恰当的句子补全对话，有一个选项是多余的。 Henry: Hi, Becky. Becky: Hi, Henry. 21 Henry: Some photos. Becky: Let me have a look. Henry: 22 Becky: Oh, too bad. The factory is causing a lot of pollution. Henry: It’s terrible. 23 Becky: What about the second photo? Henry: 24 Becky: 25 Henry: To save energy, I guess. A．It’s a recycling centre. B．What’s in your hand? C．Look at the factory in this photo. D．Why do we need a recycling centre? E．We should recycle waste. F．Something must be done to stop the pollution. 四、阅读理解 The earth is 4.6 billion years old. We humans have lived on the earth for only 35,000 years, but during this period, we have changed our planet a lot in many ways. Some things we have done are very good for the earth while others are bad. ________ All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so many kinds of animals and plants are disappearing. ________ In big cities, cars and buses have polluted the air. Now many people in cities have health problems. ________ Factories have also polluted the land and the water. As a result, many rivers and lakes are now dead. ________ Around the earth, there’s a special kind of oxygen called “ozone” (O3) . It is important to the earth. But now air pollution is destroying it and making a very big hole in the ozone layer. Too much harmful radiation from the sun passes through the hole and reaches the earth directly. This is very dangerous because this kind of radiation can cause cancer. ________ Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal and wood. This has formed a blanket around the earth. The heat from the sun can’t escape so the temperature is rising. This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change. All these problems are very serious, so we must do something now. 26．Which one is the correct order of the best titles for Paragraphs 2-6? 1. Traffic pollution    2. Factory pollution     3. Fewer trees 4. The ozone hole    5. More carbon dioxide A．3-2-1-4-5 B．3-2-4-5-1 C．3-1-2-4-5 D．3-1-4-2-5 27．What does our planet mean here? A．The sun. B．Mars. C．The moon. D．The earth. 28．In the passage, blanket refers to `________. A．carbon dioxide around the earth B．the ozone layer in the sky C．the forests around the world D．pollution all over the world 29．The word “it” in Paragraph 5 refers to ________. A．CO2 B．O3 C．O2 D．H2O 30．What is the best title for this passage? A．Environmental Problems B．Pollution on the Earth C．Hope for the Future D．The Greenhouse Effect 五、任务型阅读 Most environmental pollution on the earth comes from humans and their inventions, such as cars or plastic. Today, air pollution is mainly caused by waste gases of cars, leading to climate change. Plastics fill our oceans and create a serious health problem to marine animals. And what about the electric light, one of the greatest human inventions of all time? Electric light can be a beautiful thing. It can guide us home when the sun goes down, keep us safe and make our homes bright. However, it has started to influence the environment. Light pollution, the improper use of outdoor light, is influencing human health and wildlife behavior. Light pollution is a global problem. Some of the most light-polluted countries in the world are Singapore, Qatar and Kuwait. And the most faraway places on the earth, such as Greenland, Central African Republic and Niue, are in darkness. Sky glow (人工白昼) is the brightening of the night sky, mostly over cities, because of the electric lights of cars, street lamps, offices, factories, outdoor advertising and buildings. People living in cities with high levels of sky glow have a hard time seeing many stars at night. Astronomers (天文学家) are especially worried about sky glow pollution, because it prevents them from watching stars. More than 80% of the world’s population live under sky glow. 31、32题完成句子；33—35题简略回答问题。 31．Air pollution to climate change. 32．Light pollution can influence and wildlife behavior. 33．Where can we see sky glow? 34．Why do astronomers worry about sky glow pollution? 35．Do you like sky glow? Why or why not? 六、短文填空 阅读下面短文，根据语境和所给单词的提示，在每个空格内填入一个适当的单词。 Have you ever heard of the term “white pollution”? It 36._____________ (be) a kind of serious environmental problem. The white color usually 37._____________ (refer) to something clear and clean. However, white pollution is very 38._____________ (harm). Because of single-use plastic tableware (餐具) and thin plastic bags, white pollution is becoming more and more serious. They’re easy to use and have already become a part of 39._____________ (we) daily life. When people ask for take-out food, it usually comes with single-use plastic boxes. When people go shopping, they can often get plastic bags. People use too many plastic products because 40._____________ their convenience. Now, white pollution has become 41._____________ big problem. White pollution affects the environment 42._____________ (main) in two ways. On the one hand, plastic waste can be seen everywhere in the natural environment. It makes cities, towns, hills, lakes… dirty. On the other hand, plastic waste can stay for 43._____________ (century), resulting in soil pollution and water pollution. It can even cause many illnesses. What’s worse, animals might die after 44._____________ (eat) plastic rubbish by mistake on the land or in the water. And it’s hard to solve the problem. Now everyone should help reduce white pollution 45._____________ recycle plastic waste. 七、补全对话 根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。 Maria: Hi, Jane. 46._____________________________________? Jane: I am writing a report. Maria: 47.____________________________________? Jane: My report is about the water pollution in the river in front of our school. Maria: 48.____________________________________? Jane: Yes, I did a survey about the river. My classmates Emily, Emma and I walked about ten kilometers along the river. Maria: Did you find out what polluted the river? Jane: 49.____________________________________. A paper factory was pouring waste water into the river. The water smelled terrible. Maria: That’s too bad. Did you go into the factory and tell them about the pollution? Jane: No, we didn’t. We are going to send out the report. Maria: 50.____________________________________? Jane: How about sending it to City Morning Paper? Maria: Good idea. 第 1 页 第 2 页 学科网（北京）股份有限公司 $