2020-2021学年英语北师大版选修7课时作业：UNIT 20 LESSON 2　ARTIFICIAL INTELLIGENCE WORD版含解析.DOC

1、课时作业8Lesson 2Artificial Intelligence.用适当的介、副词填空1Tom took _driving the car in case his father was too tired.2Mr Green gave_a lot of money to help the victims in the earthquake.3I cant figure_why he gave up the chance to go abroad.4To my delight, my son began to make_for the missing lessons.5He tried

2、to get_his idea to the audience.6Her new novel came_last month.7They compensated_the loss caused by the big fire.8He telephoned me to book a ticket for him_advance.9I dont like English._other words, I hate it.10Dont be involved_those meaningless things.答案与解析1overtake over 接管。2awaygive away 捐献，泄露。3ou

3、tfigure out 弄明白。4upmake up for 弥补。5acrossget across 使理解。6outcome out 出版。7forcompensate for 弥补。8inin advance 提前。9Inin other words 换句话说。10inbe involved in 参与。.单句语法填空1_(put) it simply, this project does good to us.2He refused_(go) shopping with me.3How I wish I _(can) get on well with him.4Her father d

4、ied，_(leave) her family worse off.5He didnt turn up, leaving me_(wait) for half an hour.6We had to accept the fact_we failed the exam.7I found_hard to make up for the lost time wasted in the traffic jam.8_is reported that the flood caused a great loss.9_made me worried was that my son failed the exa

5、m.10He was_angry that he couldnt say a word.答案与解析1To putto put it simply 简言之。2to gorefuse to do sth.拒绝做某事。3couldHow I wish.从句用虚拟语气，表示与现在事实相反用一般过去时。4leaving现在分词作结果状语，表示自然而然的结果。5waitingleave sb. doing sth.让某人做某事。6thatthat 引导同位语从句，无意义，也不充当任何句子成分。7itit 作形式宾语，代替后面的不定式短语。8Itit 作形式主语，代替 that 从句。9Whatwhat引导

6、主语从句，在从句中作主语。10soso形容词that如此以至于。.语法填空A：Let me take _1_driving the car in case you are too tired. _2_other words, lets make up _3_the time lost in the traffic jam.B：OK. Lets figure _4_how much time we have wasted in the traffic jame, oh, forty minutes. Thats a long time.A：Yes. If we _5_(find) out the

7、 condition of traffic in _6_， we wouldnt have got _7_(stick) in the traffic jam. We could have taken another way.B：I cant agree more. But now we have no choice but to compensate for the time lost to get home before dark. The fact _8_we got caught in the traffic jam leaves me _9_(wonder) how we can g

8、et the message across to the local government that the road condition needs to be impoved.A：How I wish the government _10_(can) pay attention to the situation.答案与解析1overtake over 接管。2Inin other words 换句话说。3formake up for 弥补。4outfigure out 计算出。5had found虚拟条件句，表示与过去事实相反，从句用过去完成时。6advancein advance 提前。

9、7stuckget stuck in 被困在中。8thatthat 引导同位语从句，无意义，也不充当任何句子成分。9wonderingleave sb. doing sth.让某人做某事。10couldI wish.从句中用虚拟语气，表示与现在事实相反，用一般过去时。.阅读理解The idea of being able to walk on water has long interested humans greatly. Sadly, biological facts prevent us ever accomplishing such a thing without artificial

10、 aidwe simply weigh too much, and all our mass pushes down through our relatively small feet, resulting in a lot of pressure that makes us sink.However, several types of animals can walk on water. One of the most interesting is the common basilisk Basilicus basilicus, a lizard (蜥蜴) native to Central

11、 and South America. It can run across water for a distance of several meters, avoiding getting wet by rapidly hitting the waters surface with its feet. The lizard will take as many as 20 steps per second to keep moving forward. For humans to do this, wed need huge feet that we could bring up to our

12、ears in order to create adequate “hitting”But fortunately there is an alternative: cornflour. By adding enough of this common thickening agent to water (and it does take a lot), you can create a “nonNewtonian” liquid that doesnt behave like normal water. Now, if the surface of the water is hit hard

13、enough, particles(粒子) in the water group together for a moment to make the surface hard. Move quickly enough and put enough force into each step, and you really can walk across the surface of an adequately thick liquid of cornflour.Fun though all this may sound, its still rather messy and better rea

14、d about in theory than carried out in practice. If you must do it, then keep the water wings handy in case you start to sinkand take a shower afterward!1. Walking on water hasnt become a reality mainly because humans_.A. are not interested in itB. have biological limitationsC. have not invented prop

15、er toolsD. are afraid to make an attempt2. What do we know about Basilicus basilicus from the passage?A. It is light enough to walk on water.B. Its huge feet enable it to stay above water.C. It can run across water at a certain speed.D. Its unique skin keeps it from getting wet in water.3. What is t

16、he function of the cornflour according to the passage?A. To create a thick liquid.B. To turn the water into solid.C. To help the liquid behave normally.D. To enable the water to move rapidly.4. What is the authors attitude toward the idea of humans walking on water?A. It is risky but beneficial.B. I

17、t is interesting and worth trying.C. It is crazy and cannot become a reality.D. It is impractical though theoretically possible.答案与解析本文为说明文，题材为科普知识类。能在水上行走是人类一直以来感兴趣的话题，虽然有方法能实现这一想法，但所有这些都只是理论上的，并不切合实际。1B细节理解题。根据第一段的 Sadly, biological facts prevent us.可知是人类自身生理结构的限制阻止了我们在水上行走，所以答案为B项。2C细节理解题。根据第二段中的

18、 The lizard will take as many as 20 steps per second to keep moving forward.可知这种蜥蜴是通过保持一定的前进速度确保自己能在水上前行的，所以答案为C项。3A细节理解题。根据第三段的最后一句话中的 the surface of an adequately thick liquid of cornflour 可知，cornflour 的作用就是创造出一种足够厚的液面让我们能够在上面行走，所以答案为A项。4D观点态度题。根据最后一段的描述：这个听起来可能很有趣，但是要想付诸实践还是不太实际，所以答案为D项。.完形填空“Mum

19、, can I invite my classmate Brett over to stay tomorrow night, please? Its Friday, and we dont have any_1_.Can I, please？” Mum was sitting at the kitchen table. Dad was_2_next to her, resting his head on his arms. Mum could_3_that James wanted so badly to have his friend over.“Im so sorry, James，” s

20、he said.“Im never allowed to have friends come to the house? Why, Mum？” James asked sadly, almost in_4_.“I know its_5_for you，” Mum said softly. “But Im just worried other people might think were a little.strange. And then they would make fun of you.”“No, they wouldnt, Mum，” James protested. “Were n

21、ot_6_ at all. Were just ordinary people.”Mum sighed heavily. “To tell you the truth, James, my neck has been so painful that its given me a heavy_7_. And your poor fatherhe doesnt feel_8_. He really needs a rest.”“I can help, Mum！” James said. “_9_ I can make you and Dad feel better, can Brett come

22、over? Please？”“Well.”Mum began.“Great ! Thanks ，Mum！” James almost shouted. “Just sit there, dont move.” He rushed over to the kitchen drawer and_10_ what he neededtwo spanners(扳手). “Hang on, Mum，” he said. “This wont take a second.” After some_11_， James was finished. With a smile of_12_on his face

23、 he said, “There! How does that feel？” “Oh, James，” Mum said. “Thats much better! How did you do it？”“Easy，” James said_13_.“Dad had tightened your neck bolts (螺栓) too much! I just_14_ them slightly ! I learned that in robotic science at school.”“What about your father? Can you_15_ him？” asked Mum.“

24、Ill try，” James replied. He_16_ up Dads hair at the back of his neck, and plugged the electric wire into Dads head. Then he turned the_17_on. Dad opened his eyes and_18_ immediately . “He just let his_19_run too low, thats all，” James said, “Shall I tell Brett to come over straight after school tomo

25、rrow？” “I guess so，” replied Mum. “Your friends will just have to_20_ that we are a very unusual family. Thanks, son！”1. Achance BmessageChomeworkD. difficulty2A.asleepB. reading Calone D. standing3A.explain B. see Cagree D. doubt4. Aterror B. tears Csurprise D. silence5. Afair B. easy Cgood D. hard

26、6. Astrange B. normal Cpopular D. anxious7. Aheadache B. loss Ctask D. day8. Aill B. funny Csorry D. well9. AAs B. If CSince D. Before10. Akept B. controlled Cfound D. returned11. Arequests B. thoughts Crepairs D. instructions12. Asympathy B. satisfaction Cbitterness D. politeness13. Aembarrassedly

27、Bgratefully Cimpatiently D. proudly14. Aadjusted B. collected Cproduced D. covered15. Agreet B. accompany Chelp D. ask 16. Alifted B. caught Cgave D. filled17. Atelevision B. power Clight D. gas18. Agrew up B. lay down Cbroke down D. sat up19. Afood B. temperature Cbattery D. blood 20. Aprove B. exp

28、ect Csuspect D. accept答案与解析本文为记叙文。题材为家庭生活类。詹姆斯想邀请同学来家里，然而他母亲却不同意，在詹姆斯的说服下，母亲终于答应了他的要求。1C詹姆斯想请同学来家里的原因是他们没有家庭作业，故答案为C项。2A根据倒数第二段中 Dad opened his eyes 及本句中resting his head on his arms 可推知父亲已经睡着了，故答案为A项。3B母亲可以看出詹姆斯非常想让他的朋友过来。A.解释；B.看出，明白；C.同意；D.怀疑。4B妈妈拒绝了他的请求，又根据詹姆斯所说的话(Im never allowed to have friends

29、 come to the house? Why，Mum？)，可判断詹姆斯很伤心，几乎要哭了，故答案为B项。5D首先要弄清本句中的 it 指的是詹姆斯所说的“never allowed to have friends come to the house”由此可见母亲认为：从不让朋友到家来对于詹姆斯来说是很难的。A.公平的；B.容易的；C.好的，有好处的；D.艰难的。6A根据上段中的“.other people might think were a little.strange.”可知本题答案为 strange。7A说实话，詹姆斯，我的脖子一直非常疼痛以至它使我的头疼得很厉害。A.头疼；B.损失；

30、C.任务；D.白天。8D根据下文 He really needs a rest：可知这里表示：父亲也感觉不舒服。well 作形容词时，意为：in good health 健康。A.生病的；B.好笑的，有趣的；C.感到难过的。9B根据语境可知设空处后的句子(I can.better)表示条件，故答案为B项。10C他冲到厨房的抽屉那里找到了他想要的东西两个扳手。A.保持；B.控制；C.找到；D.还回。11C根据下段中的 Dad had tightened your neck bolts(螺栓) too much！可知本空表示詹姆斯对母亲进行了修理，故答案为C项。12B根据本句中的 smile 可推

31、知他对自己的工作很满意，故答案为 satisfaction。A.怜悯；B.满意；C.痛苦；D.礼貌。13D根据本句中的 easy 可推知答案为：骄傲地。詹姆斯骄傲地说：“那很容易。”14A根据 Dad had tightened your neck bolts(螺栓)too much 可推知詹姆斯只是调整了一下脖子上的螺栓，故答案为A项。A.调节；B.收集；C.生产；D.覆盖。15C母亲现在感觉舒服多了，于是请求詹姆斯去帮一下他父亲，故答案为C项。16A在 plugged the electric wire 之前，需把父亲的头发撩起来，故答案为 lifted(抬起，撩起)。B.抓住；C.给；D

32、.装满。17Bturn the power on 接通电源。18D上文提到父亲在睡觉，故答案为 sat up(坐起来)。19C根据上文 He lifted up Dads hair at the back of his neck，and plugged the electric wire into Dads head.可知原来父亲只是把电池电流调低了，故答案为C项。20D句意：你的朋友们将不得不接受我们是一个非常不同寻常的家庭。A.证明；B.预计，期望；C.怀疑；D.接受。.语法填空Dear fellow students，May I have your attention, please?

33、Now Id like to make a speech here. As we know, waste_1_(become) common scenes on campus. Some pour the remains of a meal when there is still much _2_(leave); _3_simply walk away after washing hands, leaving the water_4_(run). Students leave the classroom every day_5_noticing whether fans are switche

34、d off. Has thrift(节俭), one of the most national traditions_6_developed from our long history gone？_7_so，find it back!We dont have to take great pains to control waste, but action and a grateful heart are needed; thank the water that runs through our fingers, and save it for poor Arabian or African c

35、ountries struggling in water_8_(short); thank the light we enjoy because in poor areas，children share a dim(昏暗的) lamp_9_(read); thank all the paper we are able to use, for trees are cut down to satisfy _10_needs；thank everything nature can offer and everything we can own.Live and act, so the traditi

36、on of thrift will never fade.答案与解析本文为演讲稿。主题是：厉行节约。1has become根据下文可推知：目前浪费已经成为校园里常见的现象，故本空需用现在完成时态。2left本题考查非谓语动词作定语。leave 与被修饰词 much 为逻辑上的被动关系，故用 leave 的过去分词形式作定语。3others根据 Some 可推知本空填 others。4running本空考查非谓语动词作宾补。宾语 water 与 run 之间为逻辑上的主动关系，且表示正在进行，故用 run 的现在分词形式。5without句意：每天学生们不注意电扇是否关闭了就离开了教室。设空处后

37、为ing 形式，故可判断设空处应为介词，根据句意此处应填without。6that本句的主干为：Has thrift gone？其中的“one of the most national traditions_6_developed from our long history”作 thrift 的同位语；在该同位语中“_6_developed from our long history”为定语从句，先行词为 the most national traditions，关系词在定语从句中作主语，先行词被形容词最高级形式修饰，故用 that 引导，而不用 which。7If句意：如果那样的话，那把它找

38、回来吧！if so：如果那样的话。8shortage介词(in)后需用名词形式，故答案为 shortage。water 作 shortage 的定语。9to read在贫困地区，孩子们为了读书分享一盏昏暗的灯。设空处作目的状语，故用不定式形式。10our句意：感谢我们可以使用的纸张，因为很多树木被砍伐是为了满足我们(对纸张)的需要。.短文改错Today, my foreign teacher Tim and I went to the Peoples Park together. We take a taxi and it wasnt long before we arrived at the

39、 park. At seeing the green trees and beautiful flower, Tim couldnt wait to take pictures. It was at that moment when we found his camera was missing. He was very worried but searched all over his backpack. Sadly, he just couldnt find it. Suddenly it struck to me that he might have left it in the tax

40、i. So I immediately got touch with the taxi company. About half an hour later, the driver returned the camera. Both of us were gratefully to the driver, and Tim, in particular, insisted on have a photo taken with him. Tim and I enjoyed themselves during the rest of the day.答案Today, my foreign teache

41、r Tim and I went to the Peoples Park together. We a taxi and it wasnt long before we arrived at the park. seeing the green trees and beautiful ， Tim couldnt wait to take pictures. It was at that moment we found his camera was missing. He was very worried searched all over his backpack. Sadly, he jus

42、t couldnt find it. Suddenly it to me that he might have left it in the taxi. So I immediately got touch with the taxi company. About half an hour later, the driver returned the camera. Both of us were to the driver, and Tim, in particular, insisted on a photo taken with him. Tim and I enjoyed during the rest of the day.