仁爱版九年级英语上册unit2topic2知识点练习.doc

Unit 2 Topic1 Pollution has caused too many problems.Ⅰ.词汇归纳:1.noise (n.) 噪音– noisy (adj.) 嘈杂的 voice 嗓音sound 声音2.chemistry (n.)化学– chemical (n./ adj.) 化学的/化学品– chemist (n.) 化学家3.leaf – leaves (pl.) 树叶4.butterfly – butterflies (pl.) 蝴蝶5.pollute (v.) – pollution ( n.) 污染5.produce (v.) 生产--- producer ( n.) 生产者6.breathe (v.) – breath (n.)呼吸7.harm (v.) – harmful (adj.)损害8.hear ( v.) 听见– hearing (n.)听力lose one’s hearing / have hearing loss 丧失听力9.lose (v.) – loss (n.) 丧失fort (v.) --- comfortable (adj.) 舒适– uncomfortable (adj.) 不舒适11.please (v.) 取悦– pleased (adj.)感到高兴– pleasant (adj.)令人愉快 --- unpleasant(adj.)令人不愉快12.environment (n.) – environmental (adj.) 环境 environmental problems 环境（问题）13.create (v.) – creative (adj.) --- creation (n.)创造Ⅱ. 词组归纳:14.bear to do sth. /bear doing sth. 忍受做某事15.no better than 和…几乎一样差16.It’s reported that…据报道…17.several hundred / thousand / million / billion 几百/千/百万/十亿18.pour … into…把…倒入…16.cut it / them down 砍倒17.be harmful to / do harm to sb / sth 对…有害18.high blood pressure 高血压19.look weak 看起来虚弱20.be gone / disappeared 消失21.be in a good / bad mood 心情好/不好22.care for 关注, 关心23.throw it / them around 把…乱扔24.go deaf 变聋25.all sorts / kinds of 各种各样26.be good for / be bad for 对…有益/害27.had better (not) do sth 最好（不）做…28.What a mess! 多么杂乱啊！29.What a shame ! 多么可惜啊！Ⅲ. 重点句子:1. You could see bees and butterflies dancing.你可以看到蜜蜂蝴蝶在飞舞。

Unit 2 Topic 2(满分100分，时间90分钟)第一部分听力（20分）Ⅰ.听句子，选择正确图片。

每个句子读一遍。

（5分）1._____2._____3._____4._____5._____Ⅱ.听对话，选择正确答案。

每段对话读两遍。

（5分）( )6.What did Lily go to the factory for?A.She wanted to find a job there.B.She went there to visit her friends.C.She went to see if the factory was pouring waste water.( )7.What has Kate done in the past five years?A.She’s read many reports.B.She’s written many reports.C.She’s written a few books.( )8.Who is in the classroom?A.No one.B.A teacher.C.Somebody.( )9.What has the government done?A.It has polluted the river.B.It has opened a chemical factory.C.It has cut off water supply.( )10.What are they talking about?A.They are talking about protecting the pictures on public walls.B.They are talking about keeping the public walls clean.C.They are talking about drawing pictures on the wall.Ⅲ.听对话及问题，选择正确答语。

Unit 2 Saving the EarthTopic 2 All these problems are very serious.一．重点句型：Section A1. What bad weather! 多么糟糕的天气！What引导的感叹句：a.What+形容词+不可数名词/可数名词复数！（不可数名词如:news; advice; weather）What clean water! 多么清澈的水呀！b.What+ a/an+形容词+可数名词单数！What a busy day! 多么繁忙的一天呀！2. As a result, a lot of rich land has changed into desert. 结果，许多肥沃的土地已经变成了沙漠。

change… into…（把…变成…）= turn… into… 把…..(转)变成…..Please change English into Chinese. 请把英语变成汉语。

3. Trees can stop the wind from blowing the earth away.树可以防风固土。

（1）stop sb./sth. (from) doing sth.= prevent sb./sth. (from) doing sth. --- 阻止…做某事=keep sb./sth. from doing sth.（from不能省略）The heavy rain stops us from going out.=The heavy rain prevents us form going out.=The heavy rain keeps us form going out. 大雨使我们无法外出。

（2）earth 着重指与天空相对的“土地”，还泛指泥土；soil 主要指用于种植庄家的“土壤”；ground 主要指大地表面；land 着重指与河、湖、海洋相对应的陆地。

Unit 2 Topic 2（Grade Nine）Ⅰ、词组及用法1、blow strongly 风猛吹rain heavily 下大雨2、blow away 吹走3、wash away 冲走4、cut down 砍伐，缩短cut in 插嘴，打断（说话）cut off 切断（电源，水）；中断cut out 剪下；删去cut up 切碎留意：动副构造，代词必需放中间，且用宾格。

eg. cut down the trees＝cut the trees down cut it/them down 5、as a result 结果as a result of…由于…eg. As a result，he passed the exam.As a result of careless，she didn’t pass the exam.6、change/turn…，into…把…变成…7、stop/prevent/keep…from sth/doing sth 阻挡（做）某事eg. Trees can stop/prevent/keep the water from washing the earth away.8、save用法（1）贮存、保存eg. Forests can save a lot of water.Save sb sth＝save sth for sb 为某人保存…（2）节约、节约，避开（金钱、时间等）奢侈eg. We should save time.（3）救，挽救eg. save one’s life 挽救某人的命He saved his friend’s life in the accident.9、in danger 处在危急中in danger of…处在…的危急中10、die out 灭亡eg. Some animals are in danger of dying out.11、come to …想到，意识到，总计，总共eg. The good idea comes to him in a flash.他灵机一动，计上心来.That comes to 23 yuan, madam.总共23元，夫人.12、the importance of……的重要性eg. Many people have come to understand/realize the importance of plantingtrees.13、sth says that…用“文字，数字”表达信息（主语，是事或物）eg. It says in the newspaper that pollution is still a serious problem.The newspaper says that pollution is still a serious problem.It’s said that…据说…It’s reported that…据报道…It’s well known that…众所周知…It’s believed that…人们信任…14、here and there＝everywhere 到处15、worst of all 最糟糕的是16、in the beginning 指一件事的初期17、take away 拿走，取走，带走18、escape sth/doing stheg. He is very lazy. He often escapes the study.The man escaped doing the work.escape…from…从…逃脱eg. The boy escaped successfully from that big fire.19、refer to sth/sb 谈及/提到/涉及某人或某事20、seem用法（1）It seems that+从句eg. It seems that their living conditions are very good.（2）主语+seem to do stheg. She seems to pass the test.（3）主语+seem+形容词eg. He seems very happy.21、protect/destroy the environment 爱护/破坏环境22、avoid sth/doing sth 避开eg. Try to avoid speaking loudly in the reading.How can they avoid a serious water shortage？23、be short of…短缺…缺乏…24、divide…into…把…分成…25、come into being 形成Ⅱ、辨析1、a number of…与the number of…a number of…＝many+名复…很多…a great/large/small number of…eg. A large number of books have been soldthe number of+名（复）+谓（单）……的数量eg. The number of the students in our school is 3900.2、none与no one△none of+名/代词+谓语…eg. None of the girls likes/like playing the violin.——How many birds can you see in the picture？——None.——How much milk is there in the bottle？——None.△no one 没有人，不与of连用，可与else连用，作主语时，谓语动词单数。

Unit2 Topic 2Section A1.strongly用于形容风刮得很猛，heavily用于形容雨下得很大。

2.People have cut down too many trees.人们砍伐了太多的树。

cut down砍掉,砍倒Trees are very useful to us.We shouldn’t cut them down.树对我们非常有用。

我们不应该砍掉它们。

cut down接代词放在中间，接名词放在中间或末尾均可。

cut down还可意为“减少，缩短”。

You smoke too much.You should try to cut down.你抽烟太凶了。

应该少抽点。

与cut相关的短语：cut in插嘴，打断（谈话）cut off切断（电源，水），中断cut out（用剪刀）剪下cut up切碎，剁碎3.as a result结果as a result of+宾语4.change...into...=turn...into...转换成，把...变成...Eg：I have to wait for the traffic lights to change/turn into green.我不得不等交通灯变成绿色。

5.desert（名词）沙漠（动词）舍弃，遗弃6.stop...from=prevent...from=keep...from妨碍，防止，预防。

from后都加doing sth. stop/keep/prevent...from doing sth.阻止（避免）...做某事stop from 与prevent from里的from可以省略,而keep...from的from不可以省略。

protect...from...：保护...不受...的侵害7. A lot of water can be saved by forests.森林可以贮存大量的水分。

save贮存,保留,保存。

九年级上册复习Unit 2 topic2Section A一、根据中文写出英文： 1.沿着街道走____________________2.砍到〔树〕____________________3.结果____________________4.变成__________________________5.阻止某人做某事____________________6.尽某人最大努力________________7.在将来____________________8.过着幸福/安静的生活____________ 9.灭绝____________________二、五分钟测试：1._______Liang Li is very busy, she always helps others.A.ButB.AndC.AlthoughD.Because2.The policemen tried to prevent traffic accidents _____ happening.A. fromB. inC. toD. with3.I think we should plant more trees, not ____ trees.A.put upB.look upC.cut downD.slow down5.尽管人们在这块地种了很多树，但还是有很多沙子。

___________ people have planted many trees in the land, there’s still lots of ________.Section B一、根据中文写出英文： 1. 一些有用的东西_________________________________________________________________________________________________________________________________________________________________________________二、五分钟测试：1.—Would you like to have _____?—No, thank you. I’ve had enough.A.anything moreB.something moreC.more anythingD.more something2.This washing machine is very difficult to use. _____ can learn to use it in a very short time.3.—Hi, Bob! I can’t find my story book. Hav e you seen it?—Sorry, I haven’t. Why not ask Jim? Perhaps he’s seen it _____.4.The cleaners must keep the street _____.A.from getting dirtyB.to dirtyC.to get dirtyD.getting dirty5.每个人都要关爱野生动物。

仁爱九上-Unit2 Topic2知识梳理【重点短语】1.as a result 结果2.change into 变成，转换成3.stop/prevent sb./sth. (from) doing sth.keep sb./sth. from doing sth.阻止某人/某物做某事4.be in danger of…处于……的危险中5.die out 灭绝6.plenty of 大量的e to understand 开始理解8.worst of all 最糟糕的是9.make rules 制定规则10.break the rules违反规则11.obey/follow the rules 遵守规则12.in the beginning= at first 期初，在一开始13.take away 带走，拿走，使消失14.escape…from…从……中逃脱15.cause sb./sth.to do sth. 导致某人/某物做某事16.refer to 提到，涉及，有关17.here and there 在各处，到处18.the greenhouse effect 温室效应18.be covered with被……覆盖19.be short of 短缺20.the shortage of………的短缺21.avoid doing sth. 避免做某事【词形转换】plete v.完成,结束adj.完整的completely adv.彻底地，完整地e v.使用n.用途useful adj.有用的user n.使用者reuse v.再次使用，重新使用3.behavior n.[U]行为，举止behave v.行为，举止4.discover v.发现，找到discovery n.[U]发现; [C]被发现的事物5.sand n.沙子sandy adj.沙的【重点句型】1.What bad weather!多么糟糕天气！2.None of us likes pollution.没有一个人喜欢污染。

Unit 2 Topic 2一、重点词汇1. none (反义词)2. both (反义词)3. rubbish (同义词)4. rise (过去式) (过去分词)5. spit (过去式；过去分词)6. behave (名词)7. prevent (同义词)8. although (同义词)9. pollute (名词) 10. completely (形容词)二、重点短语1.turn into = into转变成2. / sb (from) sth.= sb from sth. 阻止某人做某事3. 吹走冲走拿走4. 保护环境= everywhere到处5．= look after = take care of 关爱照顾6. 而且更重要的是更糟糕的是最糟糕的是7. 指的是die 灭绝；绝迹the earth在地球上8. be danger (doing) sth. 处于做某事的危险中9. a life过着幸福的生活10．/ harm/ the 破坏/损害/污染环境三、重点句型1. I was the street just now, I couldn’t see .我在街上走着的时候，什么也看不清。

2., a lot of rich land has desserts.结果，很多肥沃的土地都变成了沙漠。

3.And a lot of water by forests . 森林可以贮存大量的水分。

4.human being, animals and plants.滥伐树木对人类、动植物都有害处。

5. It China has become the world’s largest and of coal.它（文章）写到中国已经成为世界上最大的煤炭生产和消费国。

6. But the government to protect the environment.但政府为了保护环境已做了一些有益的事。

7. us pollution. 我们都不喜欢污染。

仁爱,版,九年级,初三,英语,上册,各,单元,重要,仁爱版九年级初三英语上册各单元重要知识点汇总Unit1 The Changing WorldTopic1 Our country has developed rapidly.【重点短语和句型】1. have a good summer holiday 暑假过得愉快2. come back from 从......回来3. have/has been to 去过4. have/has gone to 去了5. not...any more 再也不...6. take photos 照相7. by the way 顺便问一下8. take part in 参加9. around/all over/throughout the world 全世界10. tell sb. something about... 告诉某人关于某事11. have/live a happy/hard life 过着幸福/艰苦的生活12. describe...in detail 详细描述13. give support to 支持...14. see...oneself 亲眼看见15. keep in touch with 与...保持联系16. far away 遥远的17. kinds/sorts of 各种各样的...18. not only...but also 不仅...而且...19. make progress 取得进步20. more than/over 多于21. develop/improve rapidly 迅速发展/改善22. tell sb. (not ) to do sth. 告诉某人（别）做某事23. ask sb. (not ) to do sth. 要求某人（别）做某事24. in order to do sth. 为了做某事25. have to do sth. 不得不做某事26. It's +形容词+for sb. to do sth. 对于某人来说做某事是...的27. why not do sth. 为什么不做某事28. succeed/be successful in doing sth. 成功地做某事29. dream about doing sth. 梦想做某事30. see/hear sb. do/doing sth. 看见/听见某人做/正在做某事【重点语法】现在完成时一. 现在完成时的基本结构肯定句：主语+have/has+动词的过去分词+其他否定句：主语+have/has+not+动词的过去分词+其他一般疑问句：Have/Has+主语+动词的过去分词+其他特殊疑问句：特殊疑问词+一般疑问句（have/has+主语+过去分词+其他）二. 现在完成时的用法1. 现在完成时用来表示过去已经完成的动作对现在造成影响或后果。

仁爱版英语九年级上册Unit 2 Topic 2《All these problems are very serious》SectionC 教学设计一. 教材分析本课选自仁爱版英语九年级上册Unit 2 Topic 2《All these problems are very serious》Section C。

本节课主要讨论环境问题以及我们应该如何保护环境。

本节课的内容与学生的生活息息相关，能够引起学生的兴趣和共鸣。

教材通过对话和阅读材料的形式，让学生了解环境问题的严重性，并学会提出解决方案。

本节课的语言目标主要是掌握情态动词“must”的用法，以及如何表达意见和建议。

二. 学情分析九年级的学生已经具备了一定的英语基础，能够听懂并参与讨论日常生活中的话题。

然而，对于一些环境问题的专业术语，他们可能还不够熟悉。

因此，在教学过程中，教师需要帮助学生建立起已知信息和环境问题之间的联系，并通过任务型教学法，让学生在实践中运用所学知识。

三. 教学目标1.语言目标：–能够听懂、会说、会读、会写情态动词“must”的肯定句、否定句和疑问句。

–能够用“must”表达自己的意见和建议。

2.知识目标：–了解环境问题的严重性，学会提出解决方案。

3.情感目标：–培养学生关爱环境，保护地球的意识。

四. 教学重难点•情态动词“must”的用法。

•如何表达意见和建议。

•环境问题的专业术语。

•如何运用“must”进行建议和劝告。

五. 教学方法1.任务型教学法：通过设定不同的任务，让学生在实践中运用所学知识。

2.情境教学法：通过创设情境，让学生在真实的语境中学习英语。

3.合作学习：通过小组讨论和分享，培养学生团队合作的能力。

六. 教学准备1.教师准备：–备课教案。

–相关环境问题的图片和视频。

–录音机和磁带。

2.学生准备：–预习相关单词和短语。

–准备好讨论环境问题的意见和建议。

七. 教学过程1.导入（5分钟）教师通过展示一些环境问题的图片和视频，引导学生关注环境问题，并激发学生的学习兴趣。

Unit 2 Saving the EarthTopic 2 All these problems are very serious.一．重点句型：Section A1. What bad weather! 多么糟糕的天气！What引导的感叹句：a.What+形容词+不可数名词/可数名词复数！（不可数名词如:news; advice; weather）What clean water! 多么清澈的水呀！b.What+ a/an+形容词+可数名词单数！What a busy day! 多么繁忙的一天呀！2. As a result, a lot of rich land has changed into desert. 结果，许多肥沃的土地已经变成了沙漠。

change… into…（把…变成…）= turn… into… 把…..(转)变成…..Please change English into Chinese. 请把英语变成汉语。

3. Trees can stop the wind from blowing the earth away.树可以防风固土。

（1）stop sb./sth. (from) doing sth.= prevent sb./sth. (from) doing sth. --- 阻止…做某事=keep sb./sth. from doing sth.（from不能省略）The heavy rain stops us from going out.=The heavy rain prevents us form going out.=The heavy rain keeps us form going out. 大雨使我们无法外出。

（2）earth 着重指与天空相对的“土地”，还泛指泥土；soil 主要指用于种植庄家的“土壤”；ground 主要指大地表面；land 着重指与河、湖、海洋相对应的陆地。

Unit 2 Topic1 Pollution has caused too many problems.Ⅰ.词汇归纳:1.noise (n.) 噪音– noisy (adj.) 嘈杂的 voice 嗓音sound 声音2.chemistry (n.)化学– chemical (n./ adj.) 化学的/化学品– chemist (n.) 化学家3.leaf – leaves (pl.) 树叶4.butterfly – butterflies (pl.) 蝴蝶5.pollute (v.) – pollution ( n.) 污染5.produce (v.) 生产--- producer ( n.) 生产者6.breathe (v.) – breath (n.)呼吸7.harm (v.) – harmful (adj.)损害lose (v.) – loss (n.) 丧失8.hear ( v.) 听见– hearing (n.)听力lose one’s hearing / have hearing loss 丧失听力fort (v.) --- comfortable (adj.) 舒适– uncomfortable (adj.) 不舒适11.please (v.) 取悦– pleased (adj.)感到高兴– pleasant (adj.)令人愉快--- unpleasant(adj.)令人不愉快12.environment (n.) – environmental (adj.) 环境environmental p roblems 环境（问题）13.create (v.) – creative (adj.) --- creation (n.)创造Ⅱ. 词组归纳:14.bear to do sth. /bear doing sth.忍受做某事15.no better than 和…几乎一样差16.It’s reported that…据报道…17.several hundred / thousand / million / billion 几百/千/百万/十亿18.pour … into…把…倒入…16.cut it / them down砍倒be harmful to / do harm to sb / sth 对…有害18.high blood pressure 高血压19.look weak 看起来虚弱20.be gone / disappeared 消失21.be in a good / bad mood 心情好/不好22.care for 关注, 关心23.throw it / them around 把…乱扔24.go deaf 变聋25.all sorts / kinds of 各种各样26.be good for / be bad for 对…有益/害27.had better (not) do sth 最好（不）做…28.What a mess! 多么杂乱啊！29.What a shame ! 多么可惜啊！Ⅲ. 重点句子:1.You could see bees and butterflies dancing.你可以看到蜜蜂蝴蝶在飞舞。

Unit 2 Topic 2Ⅰ.单项选择。

(10分)( )1. ____ orange is ____ orange.A. An; /B. /; anC. An; anD. /; /( )2. —What’s red and white?—It’s ____.A. orangeB. greyC. greenD. pink( )3. —____ is his hair?—It’s black.A. What classB. What gradeC. What colorD. Where( )4. —Does Lucy look like Lily?—Yes, she ____. They ____ the same.A. does; looksB. does; lookC. do; looksD. do; look( )5. —What does Yang Ping look like?—____A. He is a student.B. He is in China.C. He is twelve.D. He has a big head. ( )6. —Do you know Alice?—____, I don’t know her.A. SorryB. YesC. OKD. Thanks( )7. —What color ____ her shoes?—Black.A. amB. isC. areD. be( )8. —Excuse me, is Michael in black pants now?—No. He’s i n ____ coat and ____ pants now.A. black; a whiteB. a black; whiteC. black; whiteD. a black; a white ( )9. —Lucy, do you ____ your sister, Lily?—No, we have different looks.A. lookB. look atC. look the sameD. look like( )10. —That’s my b ag. Please ____.—OK.A. give it to meB. give me to itC. give it meD. give me itⅡ.情景交际。

Unit2 Topic2同步精练一、单项选择1．— Do you like to eat vegetables?— Of course. I ________ eat them every day.A．almost B．hardly C．never D．perhaps2．________ our teacher is ill, ________ he still come to our class to teach us. A．Though; but B．Though; /C．Although; but D．Although ;so3．Although he is very old, _________ he works very hard.A．and B．but C．/D．so4．Bill still wore a smile on his face, ________ he didn’t win the match.A．although B．unless C．but D．or5．—Which do you prefer, soda or coffee?—I like________of them. Tea is my favourite.A．both B．neither C．either D．none6．I could ________ control my feelings at the moment. The movie reminds me of my childhood. A．really B．nearly C．slowly D．hardly7．— How do you like the singing competition yesterday?— Exciting, ______ some students didn’t do very well.A．so B．and C．though D．because8．Alan ________ loves cars and he knows a lot about them.A．hardly B．almost C．really D．nearly9．My pen friend knows a lot about China ________ she has never been here.A．although B．if C．because D．until10．My parents gave red packets to my cousin every Spring Festival___________ she got a job, because she said she was able to make money.A．after B．when C．until D．since11．It is ________ to say “thank you” very often, even to family members.A．polite B．rude C．dangerous D．humorous 12．We had a football match yesterday. Our fans cheered us on and we felt more. confident. A．slowly .B．loudly .C．nearly .D．carelessly13．________ Simon has done well in his studies, he still works really hard.A．Since B．If C．Although D．Unless 14．Cloth shoes became popular during the Ming Dynasty, ________ in Sichuan province. A．hardly B．nearly C．really D．especially15．________ is better worth my respect than Yuan Longping. He is the pride of China. A．Somebody B．Anybody C．Nobody D．Everybody 16．________ he is dead, Kobe Bryant’s spirit will continue to influence us.A．If B．Until C．Because D．Although17．________ many things change a lot, a love of sports hasn’t changed a bit.A．If B．Before C．Though D．Because18．_______ riding shared bikes is an environmentally-friendly way to travel, many of the bikes are thrown everywhere.A．Although B．As C．Unless D．Until19．The number of the students who study abroad ________ in the past few years.A．have risen B．has developed C．has increased D．have increased 20．—Lucy, you can come to me for help ________ you get into trouble in your study at school.—Thanks, David. You are always helpful.A．although B．unless C．when D．since二、阅读单选（一）There is a river in Indonesia where you can hardly see the water because of pollution. It’s the Citarum River. It’s a sad thing for millions of people who depend on this river for a living.The river became dirty many years ago and now it has got worse over time because of the waste from houses and factories. In fact, people have poured about 6 million tons of human waste into this river. The government has done many things to clear up the Citarum River, but it seems fruitless.Yusuf Supriyadi, a 54-year-old rice farmer, lives next to the “world’s dirtiest river”. He depends on it to irrigate (灌溉) a small rice land in West Java that supports his family of six.The farmer’s rice yield is now down by two-thirds in the rainy season as more and more waste goes into the river. But he has no choice. “Pollution makes me grow less and less rice. If I keep going, I’ll lose money, but if I don’t, I’ll have no other job,” Supriyadi said.Like Supriyadi, around 80% of West Java’s population are in danger because of the polluted river. They depend on it for irrigation, washing and even drinking. Now the government has decided to take action again.“We are not playing around this time,” said Djoko Hartoyo, a spokesman. “We hope to make the Citarum River’s water drinkable by 2025, just like it was 50 or 60 years ago.” It sounds impossible, but I do believe that doing something is always better than doing nothing. 21．What can we know about the Citarum River from the first two paragraphs?A．It’s not long before the river turned dirty.B．The government did little to clean up the river.C．The waste into the river is mainly from houses.D．The Citarum River in Indonesia was badly polluted.22．How many people are there in Supriyadi’s family?A．Three.B．Four.C．Five.D．Six. 23．Supriyadi chooses to keep growing rice because ________.A．he can’t find another job B．it’s good for the Citarum RiverC．the government asks him to do that D．he can make enough money from it 24．How does the writer feel about what the spokesman said?A．It’s not clear.B．It’s useless.C．It’s a little boring.D．It’s difficult to do. 25．The writer writes this text to ________.A．call on people to fight pollution B．ask people to help the government C．introduce a dirty river in Indonesia D．show the importance of clean water（二）As we all know, Tian Gong Space Station has been the pride of our country. What many people don’t know is that the astronauts face many risks every day. Besides the unknown risks, the space junk has become one of the main problems.According to the latest survey, there are hundreds of millions of pieces of space junk floating around the earth. And these are just the things that we can see from the surface of the earth by telescopes （望远镜）. There are also millions of smaller pieces of junk that we can’t see.Objects, like bits of old space rockets or satellites（卫星）, move around the planet so fast that even a very small piece can break important satellites or become dangerous to astronauts. If the tiniest piece of junk crashed（碰撞）into a spaceship, it could be harmful to the vehicle（轨道）.To make things worse, when two objects in space crash, they break into many smaller pieces. For example, when a U.S. satellite hit an old Russian rocket in 2009, it broke into more than 2, 000 pieces, increasing the amount of space junk.To reduce additional space junk, countries have agreed that all new space tools can only stay in space for 25 years at most. Each tool must be built to fall safely into the earth’s atmosphere（大气层）after that time. In the upper parts of the atmosphere, it will burn up.Many scientists also suggest different ways to clean up space junk. In England scientists are testing a metal net that can be fired into space junk. The net catches the junk and then pulls it into the earth’s atmosphere to burn up. The Germans are building robots that can collect pieces of space junk and bring them back to Earth to be safely destroyed.“The problem is becoming more challenging because we’re sending more objects into space to help people use their mobile phones and computers,” says Marco Castronuovo, an Italian space Researcher.“The time to act is now. The longer we leave the problem, the bigger it will become,” he says.26．What does the underlined word “these” in Paragraph 2 refer to?A．New telescopes.B．Old satellites.C．Space junk.D．Other Planets 27．Why is space junk considered a problem?A．Because it may crash into other space tools causing damage or death.B．Because it could force new space tools to travel at slower speeds.C．Because it burns up after it re-enters the atmosphere after 25 years.D．Because it will be used by aliens to know much information about us.28．Countries want future space tools to be able to fall back into the earth’s atmosphere so that________.A．the space tools can be reused later B．the tools won’t become space junkC．the influences of space flight can be studied D．the aliens won’t become angry29．How do the Germans plan to deal with space junk?A．By building robots to collect it.B．By burning it in the earth’s atmosphere. C．By sending it away from the earth.D．By destroying it in the outer space.30．In which part of the newspaper would you probably read this article? A．Entertainment.B．Local News.C．Education.D．Environment.三、补全对话7选5请阅读下面一段对话，根据其情景，从文后七个选项中选出能填入对话的五个选项。

仁爱版九年级英语（上）Unit 2 Topic 2Class: Name: NO. Score:一、翻译并熟记下列短语：1.看这篇文章——_2.到处— _________________二everywhere3.关爱;爱护___4.结果—5.践踏草坪________________6 .摘花_______ _______ 7.最糟糕的是— ________ 8. _开始______________9.冲走_______________ 10.吹走；舌ij走______________ 11 .拿走 ______________12.灭绝；消失__________ ___________ ] 3 .制定规则__________ —14 .转变成15.阻止...做某事_______ (from) _________ sth = __________ (from) __________ sth16....的水平_____________ ________________ 17.短缺_______________ —18 .重复利用水_______ _____ 19.处于做某事的危险中____20.破坏/损害/污染环境./ /the environment21 .通过法律___________ __________________ 22.大量的——23.开始明白____________ _________ 24. _天天________—25 .遵守规则__________ 26.大量的（修饰可数名词）_____________________________ 27.形成__________________28.似乎做某事__________ ________ 29 .提到...________30.避免做某事_________二、翻译并熟记下列句子：l.But the government the environment 但政府为了保护环境已做了一些有用的事情。

仁爱版九年级英语上册 Unit 2 Topic 2 重难点知识归纳总结Topic 2 All these problems are very serious.【重点单词】1.sand /sænd/ n. 沙2.sandstorm /ˈsændstɔːm / n. 沙暴3.desert /'dezət/ n.沙漠/dɪ'zɜːt/ v. 舍弃，遗弃4.human /ˈhjuːmən/ n. 人5.although /ɔːlˈðəʊ/ conj. 虽然，尽管，即使6.reduce /rɪˈdjuːs/ v. 减少；减轻pletely /kəmˈpliːtli/ adv. 彻底地；完整地er /ˈjuːzə(r)/ n. 使用者，用户9.none /nʌn/ pron. 没有一个；毫无10.rubbish /ˈrʌbɪʃ/ n. 垃圾；废弃物11.spit /spɪt/ v. 吐，唾12.wild /waɪld/ adj. 野的，野生的13.nobody /ˈnəʊbədi/ pron. 没有人n. 小人物，无足轻重的人14.untidy /ʌnˈtaɪdi/ adj. 不整洁的，凌乱的15.worst /wə:st/ adj. 最差的，最糟的16.rude /ruːd/ adj. 无理的，粗鲁的17.behavior /bɪˈheɪvjə/ n. 行为，举止18.situation /ˌsɪtʃuˈeɪʃn/ n. 状况；形势；局面19.punish /ˈpʌnɪʃ/ v. 处罚，惩罚20.perhaps /pəˈhæps/ adv. 可能，大概21.everybody /ˈevribɒdi / pron. 人人，每个人22.nowhere /ˈnəʊweə(r)/ adv. 无处；哪里都不23.oxygen /ˈɒksɪdʒən/ n. 氧气24.hole /həʊl/ n. 洞，坑25.ozone layer /ˈəʊzəʊn ˈleɪə(r)/ 臭氧层26.radiation /ˌreɪdiˈeɪʃn / n. 放射，放射物27.directly /dəˈrektli/ adv. 直接地28.carbon dioxide /ˈkɑːbən daɪˈɒksaɪd/ 二氧化碳29.form /fɔːm/ v. （使）出现；（使）形成n. 种类；形式30.blanket /ˈblæŋkɪt/ n. 毛毯，毯子31.escape /ɪˈskeɪp/ v. 渗出；逃跑；逃脱32.rise /raɪz/ v. 上升；起床；升起33.shortage /ˈʃɔːtɪdʒ/ n. 不足；缺少；短缺34.avoid /əˈvɔɪd/ v. 防止，避免35.resource /rɪˈsɔːs/ n. 资源；财力36.discover /dɪˈskʌvə(r)/ v. 发现，找到37.reuse /ˌriːˈjuːs/ v. 再次使用；重复使用38.thirsty /ˈθɜːsti/ adj. 缺水的；（口）渴的39.nearly /ˈnɪəli/ adv. 几乎，将近w /lɔː/ n. 法律，法令；定律【重点短语】1.as a result 结果2.change into 转换成，变成3.stop...from 阻止……做4.blow...away 把……吹走5.wash...away 把……冲走e into being 形成7.do something useful 做一些有用的事情8.here and there 在各处；到处9.care for 关心，照顾10.cut down 砍倒11.the greenhouse effect 温室效应12.take away 拿走13.refer to 涉及；指的是14.make some progress 取得一些进步15.be covered with 被……覆盖16.day by day 一天天；逐日【重点句型】1.As a result, a lot of rich land has changed into desert.结果，许多肥沃的土地变成了沙漠。