整好印Unit4Topic3课堂作业

1、Unit4 Topic3 Section A课堂作业一、词汇1wonder(形容词)2. excite(形容词)和3 science(名词，科学家)： (形容词)二、精读课文1a，完成下面的分析与练习。1.这周六晚上_ 2.太空生活_ 3.在火星上生活_4. 在太空生活_5.乘飞船旅行_6.在地球_7.将能够_8. 多么有趣！_9. There be句型的一般将来时：_或_课文第一句可改为：10.We will be able to do anything that can be done on earth. 思考：that can be done on earth是_从句，修饰先行词_点拨：

2、can be done - 能够/可以被做(带有情态动词的被动语态) 含有情态动词的被动语态结构为：练习：a.这些树明天必须被栽种。These trees _ _ _ tomorrow.b.李明可能被选为我们班的班长。Li Ming _ _ _ as the _ of our class. c.下课后应该擦黑板。The blackboard _ _ _ after class.be able to 与can的区别：be able to有各种、和的变化，而can只有一般现在时和一般过去时的变化，并且它们不能。三、精读课文2a，完成下面的分析与练习。1我恐怕不信。它是的否定句。类似句子有：我希望如

3、此，我希望不是这样。但注意：我认为是这样，我认为不是这样。2_以便了解人类文化in order to意思是，表示，后接，既可放在又可放在。它的否定形式是：。如果后面接目的状语从句则要用或。练习 .过去为了赚钱他们什么都肯做。They did anything _ _ _ _ _ in the past. .为了通过考试，他每天学习十多个小时。 _ _ _ _ fail the exam, he studied _ _ _ _ _ every day. .为了能赶上早班车今天早上他起床很早。He _ _ early _ _ he _ _ the early bus this morning.为了

4、提高口语他去年去了英国。He went to England last year _ _ _ _her_English.3.But I dont think aliens can be found in space.但是我认为在太空中找不到外星人。当think, believe, suppose, imagine, expect等动词后接的宾语从句含有not等否定词且主语为第一人称时，该否定要前移，即否定主句的谓语动词。如I think的否定形式为，I believe的否定形式为，但当主句的主语是第二三人称时，否定式一般。注意：改写反意疑问句时，当主句的主语为人称时，反意疑问句的主、谓要与保持

5、一致。如I dont think it will rain tomorrow, _? 如果主句的主语是人称时，反意疑问句的主、谓要与一致。He thinks he can make it, _?4.亲眼所见：_5. I wont believe there are aliens until I see them with my own eyes.除非亲眼所见我才相信有外星人存在。not until意思是, 主句用，从句用。主句中的动词通常是，但当主句的动词为wait, watch, think等动词时，不与连用。练习：1.昨天晚上直到完成作业我才睡觉。I _ go to bed _ I _ m

6、y homework last night. 2.明天我会一直等到你回来。I _ _ _ you _ you _ back tomorrow.6. Scientific research should be done carefully. 科学研究应仔细地进行。 _意为“研究，调查”，可做名词，也可做动词。做大量的研究/调查_四、把下列句子改为被动语态1、He can work out the problem easily . The problem _ _ _ _ by him easily. 2、 We must plant more trees to protect the enviro

7、nment . More trees _ _ _ _ protect the environment by us . 3、We should change clothes often to keep healthy . Clothes _ _ _ often to keep healthy . 4、 Scientists may clone humans some day . Humans _ _ _ by scientists some day . 5、 People must not throw rubbish into the river . Rubbish _ _ _ _ the ri

8、ver by people . 五、巩固练习题：( ) 1. More man-made satellites _ into space . A. must sent up B. can sent up C. must be sent up D. may be send up ( ) 2. - _ an elephant show in the zoo this Sunday . Would you like to go with me ? - Id love to . A. There is going to have B. There will beC. There is going to

9、 hold D. There will have ( ) 3. _ the spaceship , people _ fly to the moon. A. No ; couldnt B. Havent ; cant C. Without ; wont able to D. Without ; wont be able to ( ) 4. - How hard those astronauts work !- Yes . _ finish the flight task , they must keep on _every day . A In order to ; exercising B

10、So that ; exercising C In order that ; exercises D Because of ; exercising ( )5. I didnt have a clear understanding of the science book _ I did an experiment for myself . A. since B. until C. unless D. after ( ) 6. I dont think it will rain tomorrow , _ ? A. do I B. dont I C. will it D. wont it ( )

11、7. I _ go to Beijing with my parents in two weeks . A. can B. am able to C. will can D. will be able to ( )8. On Christmas Day , the children wake up early and cant wait _ their presents in the boxes . A. opening B. for opening C. to open D. open六、自我检测：请完成句子，看谁说得准！1. 应该认真地进行科学研究。 Scientific research

12、 _ _ _ carefully2.必定会发射更多的人造卫星进入太空。More man-made satellites _ _ _ into space . 3.我认为外星人不会在太空中被发现。I dont think aliens _ _ _ in space 4. 雪必须在两点前清扫掉。 The snow _ _ _ _ before 2:00.5. 那个工作两天做不完。The work _ _ _ in two days 6. 这个表该修了。 The watch _ _ _ .Unit4 Topic3 Section B课堂作业一、短语 羡慕某人做某事_1.通过收音机_ 参加太空飞行_

13、2.发现新的事情_ 3.掌握一些基本电脑技术_ 4.在舞台上表演芭蕾_5.喜欢科学胜过舞蹈_ 6.将被揭秘/发现_7.使我们的梦想实现_ 8.以为根据_常用于被动语态中_ 形容词，基础的_二、精读课文1a，完成下面的分析与练习。1take part in指参加join指参加2discover, invent, find, find out的区别：discover意思是，指invent意思是，指find意思是，指find out意思是，指。3The astronauts can discover something new about Mars.(改为被动语态) 4翻译：我长大后想当宇航员。5翻

14、译：你将来想干什么？_6You should master some basic computer skills. (改为被动语态) 7Maria can perform ballet on the stage in the future. (改为被动语态) 8preferto的用法：prefer to do sth - 更喜欢做某事(一时性的) prefer doing sth. - 更喜欢做某事(长久性的) _ 意为：与相比，更喜欢，如：I prefer English to math. _ 意为：与做什么相比，更喜欢做什么，如：与跳舞相比，汤姆更喜欢唱歌。_ _宁可做某事也不愿做某事例如

15、：他的爸爸宁愿看报也不愿看电视。_练习：a.和重庆比起来我更喜欢厦门。I _ Xiamen _ Chongqing. b.和游泳比起来我更喜欢滑冰。I prefer _ _ _. c.他更喜欢和我一起去打篮球。He _ _ _ basketball with me. d.他们更喜欢雨天在家喝茶。They _ _ _ at home _ _ _.9More and more things will be discovered by people in the future. (改为主动语态) 10Lets work hard to make our dreams come true.(同义句转换

16、)Why not work hard to _ our dreams?11. Sams watch doesnt work. 同义句：_ 12. The trees are dying. 译：_思考：dying的原形_过去式_形容词_名词_三、巩固练习题：( ) 1. Do you think a radio is useful in learning English?Sure. A radio can _ listening English songs and reports. A. be used byB. be used asC. be used forD. be used to( )

17、2.-How beautiful our hometown is! -Yes, trees and flowers _ everywhere. A. can be seen B. can see C. be seen D. cant see( ) 3. We put a strong stick near a young tree _ make it straight. A. so that B. in order that C. in order to D. so that( ) 4.Half a month _ since I came to Beijing, I miss my stud

18、ents very much. A. have passed B. have past C. has passed D. has past( ) 5.It is said that an old man lives on the _ island _. A. alone; alone B. alone; lonelyC. lonely; lonely D. lonely; alone( ) 6. Harry Potter and Sorcerers Stone is quite a good book. Its worth _. A. read B. reads C. to read D. r

19、eading( ) 7.There _ a man-made planet in space in the future.A. will beB. is going to haveC. has been D. isUnit4 Topic3 Section C课堂作业一、根据1a，完成下列空格1.以名字命名_ 2. 相隔_3.区分，辨别_ 与介词_连用4.看起来像 _5.覆盖火星的整个表面_ 6. 搜寻更多信息 _ _7.和的2/5一样重 _8.彼此距离最近 _9. Its diameter is 53 as wide as that of the earth. 点拨：as形容词/副词原级as

20、名词 - 像一样 思考：句中that指代_, 如果前面的名词是复数，用_指代 练习：a.我们学校像花园一样美。Our school is _ _ _ a park.b.Tom和Mike跑得一样快。Tom _ _ _ _ Mike.c.美国的人口没有中国多。The population in America _ _ _ _ _ in China.d.城市的楼比农村的高。The buildings in the city _ _ than _ in the country.10.Mars goes around the sun at a distance of about 228 million

21、kilometers. 点拨: at a distance of -相隔 拓展：at/from a distance - 在远处 对比分析下列短语：l twofifths as strong as 相当于(像、是)的五分之二强度l 53% as wide as 相当于(像、是) 的53%宽l half as big as相当于(像、是)一半那样大l twice as long as相当于(像、是)两倍那样长five times as fast as 相当于(像、是) 的五倍快点拨：倍数词/分数/百分数as 形容词或副词原级as - 是的几倍/几分之几/百分之几 练习：a.这个盒子是那个盒子的四

22、倍重。 This box is _ _ _ _ _ that box. b.这个房间是那个房间的三分之一大。This room is _ _ _ _ _ that room.11.So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars.点拨：a person who weighs 90 kilos on earth - 一个重达90公斤的人 思考：句中第一个weighs是_句的_; 第二个weighs是_句的_12.It takes a spaceship about eight months to reach

23、 Mars from the earth when the two planets are closest to each other.点拨：be closest to- 离最近 拓展：离近_; 离远_13.Scientists are still searching for more information about Mars. 点拨：search - 搜寻，搜索，搜查(动词) 拓展：search sb. / sth 搜某人的身/搜某物 search for sb. / sth. 搜寻某人/某物 练习: a. 警方在寻找失踪的孩子。The _ are _ _ the _ child. b.

24、 消防员在建筑物中搜寻幸存者。Firefighters were _ the building _ survivors.14做某事花费某人多长时间_15It takes a spaceship about eight months to reach Mars from the earth.(划线部分提问)_二、根据2，完成下列题1.It has been two days since we landed on Mars. 同义句：It _two days _ we landed on Mars.练习：a.自我们上次上街购物已经是两个月了。It _ _ two months _we _ shop

25、ping. b.他父亲死了十年了。It _ ten years _ his father _. 同义句：a. His father _ ten years _. b. His father _ _ _ for ten years.2.Generally, the journey went well, but the living conditions were quite bad during the journey. 点拨：go well - 进展顺利 练习：一切进展顺利 译：_3.We had to limit the use of water during those days. 限制水

26、的使用(用水)：_点拨：limit - 限制(动词) the use of - 的使用 注意：use在此是名词链接：use -_( ) useful-_( ) useless-_( ) reuse-_( ) user-_( )4.Whats worse, our water supplies were very low. 点拨：supply -供给(名词) 复数形式 _链接：supply -供应(动词) _= _给某人供应某物 Low在此为形容词，不足的，短缺的 _不足5.I often miss the family, but the excitement of being on Mars

27、is worth it. 点拨：be worth sth. - 值 链接： be worth doing sth. - 某事值得做练习：a.这辆汽车值一万美元。The car _ _ 10,000.b.这事值得我们付出劳动。It _ _ our work.c.这本书值得一读。The book _ _ _.6辨析：search(搜查) , search for(搜索) They searched him. 他们搜查他（搜身）。 They searched the village for him. 他们在村庄里寻找他。(搜索)三、巩固练习题：( ) 1 My best friend was lat

28、e for class this morning . _ , she left her bag at home . A .Whats more B. Whats worse C. However D. Even though ( ) 2 Your apple is about _ mine . A. second threes as big B. two threes as big as C. two thirds as big as D. second thirds as big as ( ) 3 The digital camera is _ nine hundred yuan . A.

29、pay B. cost C. worth D. spend ( ) 4 The fiction film is so interesting for us that its worth _ .A. see B. to see C. seeing D. sees ( ) 5 It _ 6 days since I came to Beijing . Im leaving tomorrow . A. was B. is C. has been D. B and C ( ) 6 She really likes dancing . It _ her 2 hours to practice danci

30、ng in the gym every day . A. takes B. spends C. costs D. uses( ) 7 Its three years _ we got here . A. since B. before C. after D. at least ( )8.My son is too fat, so I have to _ his food and drink.A. saveB. limit C. encourageD. affect( )9.Harry Potter and Sorcerers Stone is quite a good book. Its wo

31、rth _.A. readB. readsC. to readD. reading( )10._ the help of the Internet, news can _ every country of the world.A. Under; arriveB. With; reachC. In; goD. With; getUnit4 Topic3 Section D课堂作业一、自学1a：英汉互译：1.数百万年_ 2.环绕太阳_3.被称为_ 4. 这么多的星星_5.给我们发信息(2) _ _6. Scientists think that there has been life on ear

32、th for mi llions of years. 科学家认为地球上的生物已经存在数百万年了。思考：There has been是There be结构的_时态拓展：There be结构的过去时态是_ There be结构的将来时态是_或_ There be结构的完成时态是_7.And there are seven other planets that also go around the sun. 思考：that also go around the sun在此是_从句，修饰先行词_8. We havent found life on other planets yet. 我们还没有在其它

33、行星上发现生命。yet,副词，意思是，通常与或时态连用，常用在和句中。如：Is supper ready yet?晚饭准备好了吗？He has not begun to work yet.他还未开始工作。意思类似的词有already和still。already主要用在句中，常用于时态，也可用于一般现在时。如：I have already seen the film.我已经看过这部电影了。Shes already here.她已经到这儿了。still可用在任何句式中，表示“某中尚在进行中”。如：Does he still work in that factory?他还在那家工厂上班吗？9.Som

34、e spaceships have gone beyond the solar system. 点拨: beyond - 在之外，超出范围(介词)练习：a. There is a temple beyond the mountain. 译：_ _ b. What happened was beyond my control. 译：_ _10.With so many stars in space, are we alone, or is there life on other planets in space?比较：alone -独自地（副词）；alone - -独自的(指无人陪伴的客观事实)

35、；lonely - 孤独的，寂寞的(指主观的感觉) ； lonely - 偏僻的 练习：a.她独居，但并不感到寂寞。She lives _, but she doesnt feel _. b.去年他独自去了一个偏僻的小村庄。He went to a _ village_ last year. 11.Write the correct answers on a separate piece of paper. 点拨: separate - 单独的，分开的(形容词) separate -使分开，使分离(动词) separatefrom-将分离 12.Exchange your questions wit