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1、Unit 4 Topic 3 Section B号目标导航单词search搜索，搜查result结果，后果；成绩，得分grammar 语法dictionary字典，词典improve改进，改善look up查阅expensive昂贵的，花钱多的redwood红杉，红木pleasure快乐，愉快，满意knowledge知识，学问lose oneself in .沉迷于:专心致志于lake湖，湖泊drop滴，水滴tear眼泪，泪水。撕裂，撕碎短语22.in ones head 在头里23.put sth. into把放进里1.1 in the future 在将来1.50 ome day = on
2、e day 将来某一天1.51 fso/not如果这曲不是这样27 .give some examples 举些例子28 .after / in class课后/在课堂上29 .use sth. to do sth. = use sth. for doing sth.使.做.30 .for the better / worse向着较好/差的情况（转变）31 .at the same time 在同时32 .search for sth.搜索.33 .search . for.搜索寻找34 .advice on / about sth.关于的建议35 .change sth. into把转变/译
3、成36 .an English - speaking writer 一个讲英语的作家37 .be different from = be not the same as 与不同38 .surf the Internet 上网句型spend .on sth.在上花（钱/时间）spend . （in） doing sth.花（钱/时间）做重点句子l.rm not sure of that.1.1 fs possible to do sth.做是有可能性的1.2 ts very kind of you to care about animals.4 .The more I read, the mor
4、e I learn.5 .Thev cant live at all without water.6.1t takes （took ） sb. + 时间 +to do sth. = Sb. spends （ spent） + 时间（in ） doing sth.7.1t took me half an hour to finish the work.8.1 spent half an hour in finishing the work.9Im sure that I will win the game. = Im sure to win the game.知识精讲2 ,知识点（）1【课文原句
5、】I saw a new photo of Mars on the Internet last night.photo的复数：photoso photo可以用作名词和动词，可以翻译为照片、相片，等等。n.照片，相片；vt.& vi.（给）拍照；photo和picture用法的区别：I、指代不同：photo ：指照片，就是拍摄下来的那种。picture：广义的图像，可以指任何的图，比如画、艺术画；2、词性不同：photo：只有名词这一个词性。picture：可以做及物动伺，用作“想象”和imagine一样：3、使用范围不同：photo：只能单纯作为客观物体。picture：可以指在报纸、杂志等上
6、登载的照片或图片，作动词用。oof一张的照片on the Internet 在网上【即学即练1】There is a photomy family on the wall.A. to B. of C-viith D. in答案：B2 ,知识点02【课文原句】It looked like a big red plate of pizza.look like看起来像look for 寻找look at看着look after 照顾look up查阅look down 轻视Mook about/around环顾四周，随便看看，到处看看，考虑，如：sb./ook after sb./sth.照顾（某人
7、/某物），照料（某人/某物），关心（某人/某物）。3. look at sb.看（某人），注视（某人）。4. look back on sth.回顾（某事），回想（某事）。sb./ook down on sb./ sth.看不起（某人/某事），瞧不起（某人/某事）。6. look for sth.寻找（某物/某事）。7. look forward to 期待，盼望。8. look in sb.顺便拜访/访问（某人）。9. look into sth.调查（某事）,研究（某事）,了解（某事）。10. look like sb.看起来象某人。11. look on 旁观,12. look out
8、of Sth.向（某物之）外看,13. look over sth.审阅（某物），翻阅（某物），打量（某物）,检查（某物）,看一下（某物），14. look through sth.翻阅（某物），浏览（某物）。15. look to注意，负责，重视16. look up sth. in swh.查阅在中,查找。17. look up to sb.尊敬（某人），仰慕（某人），钦佩（某人）【即学即练2】6.-What docs your friend look like?A. He is thin B. She is a kind girl C. She likes music答案：A收2 知识点
9、03【课文原句】Im sure you can find lots of information on the Internet now.lots of =a lot of 许多；大量a lot of 和 lots of ：这两个词组可以当作定语，即当作many或much那样来使用：因此，谓语动词的数不是依据lot和lots来 决定，而是依据。f所引导的名词的数来决定。例如：A lot of lime has been wasted.有许多时间给浪费掉 了。(a lot of =much)A lot of people have been present.已有许多人到了。(a Iotof=ma
10、ny)There is lots of time to spare.时间绰绰有余。(不说 Thereare.)Open meetings often reveal lots of closed winds.公开讨论往往得以开诚布公。(of引导的是复数名词)【即学即练3】1 .There a lot of water in the river.A.is B.are C.were D.be答案：A2 .He has money and often goes shopping.A.a lot B.a lots of C.lots of D.many答案：CM分层作业题组A基础过关练(A)根据句意及汉
11、语提示填空。1.1 was(想知道)whether youd like to come to a party.2. A car suddenly(出现)over the hill.3. Our teeth have a hard(表面),so we can eat hard food.4. Forests can(控制)the weather.5. We take care of animals and plants. In fact we(保护)ourselves.(B)根据句意，用方框中用给词的适当形式填空。danger, sheep, true, dictionary, science6
12、. A lot of are eating grass by the river.6.1 want to look up a new word. May I borrow your?8. The traffic here is very busy and its fbr children to walk alone.9. Is it that the earth moves around the sun?10. Mrs. Green is a famous. She invented many useful things.(C)用括号内所给单词的适当形式填空。(5分)11. The weath
13、er in the south is(wet) than that in the north.12. We should eat more vegetables and(little) meat.13. My book is(miss), and I canl find it.14. The good news brings me(please).15. The boy is(search) for some information on the Internet.题组B能力提升练I.单项选择。1. What are these?一Theyre and.D. sheep; horseD. ge
14、t upA. sheep; hensB. hens; shipC. horse: sheep2. Mr. Wang, what does this word mean?You can(he word in your English-Chinese dictionary.A. make upB. look upC. give up3. The student is too young. He cant look after himself.C. carefully enough D. enough carefullyB. Three thousandsD. Three thousands ofB
15、. I think so.I was reading （he newspaper.C. afterD. ifA. careful enoughB. enough careful4. How many students are there in your school?一 students, I think.A. Thousand ofC. Three thousand5. Where are you going to work next year?Maybe Hefei or Nanjing.A. I,m not so sure.C. Thats a good idea. D. I hope
16、not.6. Jenny and Jane were talking in the kitchenA. whileB. before7. Why do you like living in the countryside?Because theres noise and cars there.A. less; fewerB. fewer; lessC. less; lessD. fewer; fewer8. If you cant get to sleep, then get up and try to do something lying in bed.A. and B. orC. inst
17、ead ofD. because of9. Jacks father is actor and his mother is scientist.A. an; anB. an; aC. a; anD. a; a10. Dont make me the clothes. Tin too tired!A. washingB. to washC. washD. washed11. I think computers are more important than radios.一I dont agree with you.A. much B. veryC. tooD. so12. I called y
18、ou this morning, but nobody answered.I the flowers in my garden at that time.A. wateredB. was wateringC. waterD. am watering13. The net bar is not a good place for children._. Wed better ask children to stay away from itA. Just so-so.B. I dont think so.C. I agree with you. D. Not at all.14. 一My aunt
19、 goes to climb Mount Gu every Sunday.Oh? But she hate climbing mountains.A. used toB. use toC. uses toD. is used toMust I park my car behind the building? No, you. You park it there.A. mustnt; mayB. may not; mustC. dont have to; may D. shouldnt; mustII.完形填空。Now in some places of our country, many pe
20、ople are culling down （砍伐）the （rees in the fbrests. They need more 26 to build houses and more farmland to grow crops and so on. The areas of forests are getting 27 . Some scientists say that there 28 no big forests in 20 or 30 years. It is really a（n） 29 thing. 30 the forests, we will have sandstor
21、ms （沙尘暴）often. The weather will get 31 . The earth will become a big desert （沙漠）.A lot of plants and animals will 32 . Crops will not grow anywhere. Life will be 33 for eveiyone.So we should do our best 34 our living environment and keep our mountains 35 . the waler clean, and the sky blue.26. A. wo
22、od B. moneyC. desertsD. leaves27. A. bigger and bigger B.28. A. has B. have29. A. excitedB. happy30. A. With B. Underless and less C. smaller and smallerD. more and moreC. will haveD. will beC. betterD. terribleC. WithinD.Without31. A. wet and cold32. A. come B. liveB. hot and dryC. dieC. cold and d
23、ry D. hot and wet D.turn33. A. difficult34. A. protectB. to protect35. A. clear B. freshB. easyC. protectingC. greenC. enjoyableD. poorD. protectedD. bluein.阅读理解。（A）There is one thing. We cant see it. Sometimes we can hear it and even fbel （感知）it. Without it, all the living things will die. Can you
24、guess what it is? Yes, it is air.However, whats the air like today?In cities, there are too many people and too many cars on the roads. The cars send out （排放）a lot of bad gases. In cities, there are many chemical factories. They send out terrible smoke every day. This kind of smoke is dangerous for
25、our health. Now the air is becoming worse and worse. Every day, we breathe （呼吸）（he bad air in and out. This makes us feel sick.So in order to keep us healthy, wc have to go to the countryside to breathe more fresh air. Or we can go up hills to get more fresh air.根据短文内容，判断正（T）误（F）。36. Sometimes we ca
26、n hear air when it blows.37. Some living things dont need air.38. Many people go to the countryside for their holiday because the air there is fresher.39. Too many chemical factories and cars cause the bad air.40. The smoke from the chemical factories is good for our health.（B）Wc asked thirty young
27、people between 14 and 18 several questions. All the children had computers at home. The average （平均）time spent on a computer in a week was about 12 hours, with the highest about 32 hours, and the lowest only 5 hours. Most children said they usually used computers to play games. Fourteen children tol
28、d us they did some word-processing （文字处理）at times. Eight people told us they kept addresses and phone numbers on their computers or used them as diaries. Only three people said they were learning to write computer programs and nobody used databases （数据库）.Only two of them said computers helped with t
29、heir lessons. The diagram （表格） gives all the results one by one.The results show that computer use is quite common among 14 to 18-year-old children. They also show quite clearly that computers are seen by most young people as little more than game machines. It means to us that, though computers are
30、common （普遍）in the home of young people, they have not yet become popular in everyday life. 根据短文内容，选择正确答案。46. In the diagram, what does the letter c show?A. It shows three people between 14 and 18.B. It shows only 2 of the thirty children.C. It shows that two of them use computers to help them with （
31、heir lessons.D. It shows that three of them use computers to help them write computer programs.47. Most of the 30 children spent about hours on computers in a week.A. 5B. 12 C. 20D. 3248. There is one mistake in the diagram. What is it?A. The number of c should be lower.B. The number of ttd should b
32、e higher.C. The number of a is too high.D. There should be no number about e”.49. Little more than in the last paragraph means.A. almost the same asB. far more thanC. different fromD. much more than50. The writer thinks.A. children must learn to play all kinds of gameswc should learn many other uses of computersB. young people should spend more time on computerscomputers will become much cheaper.