Unit1 Science and Scientists Discover useful structures课后练习（含答案）2022年人教版（2019）选择性必修第二册

《Unit1 Science and Scientists Discover useful structures课后练习（含答案）2022年人教版（2019）选择性必修第二册》由会员分享，可在线阅读，更多相关《Unit1 Science and Scientists Discover useful structures课后练习（含答案）2022年人教版（2019）选择性必修第二册（6页珍藏版）》请在七七文库上搜索。

1、 Unit1 Science and Scientists Period 3 Discover useful structures Part I 基础部分 一、基础词汇训练一、基础词汇训练 1._ n.机械师; 机械修理工_ adj.机械的; 发动机的; 机器的 2._ vt.保卫; 防守; 辩解_ n.防御; 保护; 保卫 3._ v.帮助; 协助; 援助_ n.帮助; 援助_ n.助理; 助手 4._ adj.生动的; 鲜明的; 丰富的_ adv.生动地; 清晰地 5._ adj.有天赋的; 有天才的; 天资聪慧的_ n.天赋; 才能 6._ n.天文学家_ n.天文学 二、单词拼写二、单

2、词拼写 1. I refuse to accept the blame for something that was someone elses _(过错). 2. _(此外), we should fight against those bad books that are harmful to our spirits. 3. The women described _(生 动 地 ) how their participation made all the difference. 4. As is known to us all, Yuan Longping is an _(优秀的) Ch

3、inese scientist in agriculture. 5. I have such a good command of English that I am elected as an _(助手) to my English teacher. 6. These _(天文学家) made great contributions to the launch of Shenzhou 5. 7. We should make _(具体的) analysis of each specific question. 8. A baby has no _(概念) of right and wrong.

4、 9. The soldiers were determined to _(保卫) their homeland, no matter how difficult it was. 10. So dark are the _(背光处) that a man standing there cant be seen. 三、单句语法填空 1. Its no secret that China has always been a source of _ (inspire) for designers. 2. He was one of the most _(gift) players in the wo

5、rld. 3. If they have problems with registration, Wilson is there _(assist) them. 4. Nowadays the priority for travelling _(shift) from shopping to food and scenery. 5. Chinas image is improving _(steady), with more countries recognizing its role in international affairs. 6. _(follow) by a wedding ph

6、otographer, the couple made a surprise visit to the hospital before heading to the reception. 7. What is on display is one of the oldest working _(mechanic) clocks in the world. 8. I got out of bed and drew the curtains, so warm sunshine _ (pour) through the window into the room. 9. Mr Green stood u

7、p in _ (defend) of the16-year-old boy, saying that he was not the one to blame. 10. Traditional Chinese culture still shines _ (brilliant) in our modem society. 四、选词填空 break out, above all, in charge of, come down with, have a great impact on, think outside the box, trace. . . back to, dream of 1. T

8、he old tea houses in Hangzhou can _ the Southern Song Dynasty. 2. _, we must make good use of online courses to improve our learning efficiency. 3. The difficulties and challenges we meet at university will _ our personality. 4. He was named as team leader _ the prevention of this deadly epidemic. 5

9、. For years man _ being able to communicate directly with animals. 6. Its required that the people who _ a fever be sent to designated hospitals (定点医院) to have further examinations. 7. To solve this tough problem, were going to have to _. 8. Under certain circumstances, however, some diseases can _

10、and cause widespread infection. Part II 提高部分 一、阅读理解 Thats funny! These fellows in the middle of the plate have died, Dr Alexander Fleming was talking to another doctor in a laboratory in London. He had been studying some germs(细菌) that he was growing on a plate. They were very dangerous germs becaus

11、e they caused different kinds of illnesses that could kill people. Dr Fleming found that a mould(霉菌) had floated in through the window landing on the plate. It had killed some of the germs it had touched. This certainly looks promising, Fleming said. We must grow some of this mould to see if it will

12、 kill other germs. He named the strange mould penicillin. It proved to be a killer of many germs. Fifty mice were given deadly germs and then half of them were injected(注射) with penicillin. The twenty-five untreated mice died, but twenty-four of those that had been treated with penicillin lived. Dr

13、Fleming wrote a report about what he had found out. Hardly anybody took any notice of it. In 1938 Dr Howard Florey, an Australian working in London, read Dr Flemings report and was very interested. He found that penicillin was effective in treating blood poisoning in human beings. When World War bro

14、ke out, it was not possible to make enough penicillin in England. Dr Florey went to America where he helped to have enormous amounts of this wonderful drug made. It saved the lives of thousands of soldiers, sailors and airmen who would have died from their wounds if the hospitals had not had penicil

15、lin. 1. Dr Alexander Fleming _. A.had been studying a mould which was very dangerous and could kill people B.had been studying some of the germs on a plate which could cure illnesses C.had been making experiments on some germs that he was growing on a plate D.had been making experiments on different

16、 germs that could help sick people to get better 2. The reason why the twenty-five mice died was that _. A.they had been given deadly germs and had been injected with penicillin B.they were almost dead ahead of the experiment C.they were easy to die in the experiment D.they had been given deadly ger

17、ms and had not been injected with penicillin 3. In 1938, an Australian working in London named Howard Florey read Dr Flemings report and _. A.left England for America, making the drug B.went to America to save the lives of thousands of soldiers, sailors and airmen C.found penicillin effective in tre

18、ating blood poisoning in human beings D.went to America to make this drug for mice 4. The underlined word enormous means _. A.rest B.appropriate C.little D.huge 二、七选五 Roger Sperry and Robert Ornstein of the California Institute of Technology, Nobel Prize winners, discovered that the human brain has

19、two sides, and each side has different work to do. The left side of the brain controls language and arithmetic(算术) and it analyses and reasons. _1_ It controls our appreciation of music and our sense of rhythm. It is also the right side of our brain that daydreams. Leonardo da Vinci was a great pain

20、ter and sculptor. He was also an architect, an engineer and an inventor! _2_ When he invented machines, he used both his imaginative ability and his analytical ability. _3_ Albert Einstein enjoyed art, playing the violin and sailing. Indeed, Einstein said his scientific discoveries grew from his ima

21、gination rather than from analysis, reason and language. He said that written and spoken words were not important in his thinking. The story goes that Einstein was daydreaming one summers day while sitting on a hill. He imagined that he was riding on sunbeams to the far distance of the universe. The

22、n he found that he had returned to the sun. So he realized that the universe must be curved(弯曲的). _4_ He then used the left side of his brain to apply analysis, arithmetic and reason. And finally he used language to explain it. Traditional education in schools encourages us to use the left side of o

23、ur brains. Language, arithmetic, analysis and reason are given more importance in our schools than imagination and daydreaming. Why dont we give more value to visual thinking? Why jump on one foot if we have two perfectly good legs! _5_ We need to use our imagination to think of solutions to problem

24、s and to enjoy emotional and artistic experiences. And we need to be logical and to be able to analyze and organize in order to survive day by day. A.We benefit by thinking creatively. B.We all need both sides of our brain. C.He got this idea by using his imagination. D.Great scientists and great ar

25、tists are similar. E.He was considered crazy for his strange ideas. F.He used both sides of his brain within each activity. G.The right side controls our imagination and our understanding of space. 三、完形填空 Many of us dream of making all the differenceearning a lot of money. A great scientist has achi

26、eved that big success and 1 all the money to help others. Professor Nicola Curtin of the Newcastle University successfully 2 a new drug for cancer, but when the time came for her big 3 , she chose to give some of the profits away to help needy people to make their life better. The drug Rubraca is th

27、e 4 of 30 years of research and helps people who have a gene known to lead to an increasing 5 of breast cancer. Rubraca helps target the cancerous cells so as to repair their DNA and finally 6 tumour cells(肿瘤细胞). The Newcastle University 7 rights of the medication(药物) for $40. 8 million to a company

28、, which is a large sum of money. Instead of treating herself, Curtin used her $1.2 million share to 8 The Curtin PARP (Passionate About Realising Your Potential) Fund. The fund 9 to help the disabled, the homeless, and anyone experiencing a disadvantage. It helps them to develop the skills to 10 dif

29、ficulties so that they can get education or employment. Those peoples 11 makes me think about life. I have already had everything that I need in life but there are many people who are leading a hard life. 12 , through The Curtin PARP Fund, I want to leave a(n) 13 legacy(遗赠) by helping them master th

30、e basic skills for life. And I feel 14 of what I have done, said Curtin. What Curtin has done tells us that we can help others in many 15 by using our talent, and by reaching out and offering much assistance, etc. 1.A.made B.passed C.donated D.showed 2.A.exchanged B.took C.accepted D.created 3.A.pay

31、off B.celebration C.event D.benefit 4.A.instruction B.improvement C.chance D.result 5.A.view B.risk C.cause D.fact 6.A.make B.study C.remove D.catch 7.A.sold B.offered C.ensured D.achieved 8.A.raise B.establish C.present D.obtain 9.A.aims B.affords C.begins D.competes 10.A.avoid B.realise C.overcome

32、 D.experience 11.A.action B.admiration C.shame D.situation 12.A.Moreover B.However C.Meanwhile D.Therefore 13.A.thankful B.careful C.lasting D.interesting 14.A.afraid B.proud C.sick D.sure 15.A.aspects B.ways C.purposes D.attempts 四、语法填空 The Father of Chinas Aerospace Perhaps no other scientist has

33、had a _16_(great) impact on Chinas aerospace science than Qian Xuesen. He was a well-respected man, _17_ served his homeland with effort, achievement and devotion. Born in Hangzhou in 1911, Qian attended schools in Beijing and Shanghai. In 1935, he went to the US _18_ further study and then worked t

34、here. After overcoming some difficulties, he _19_ (return) to China in 1955, and was put in charge of developing Chinas rocket science as well as the space and missile programme. _20_ (face) with challenges, Qian didnt feel discouraged. When _21_ (ask) Can we Chinese possibly make missiles? ,his rep

35、ly was Why not? Under _22_ (he) leadership, China developed its own missiles, rockets, and man-made satellites _23_ (success). Qian was knowledgeable. However, _24_ made him an outstanding and creative scientist was probably his interest in other things like music and drawing, which gave him _25_ (i

36、nspire) in scientific research. The whole country was saddened by Qians death in 2009. 五、书面表达 假如你是李华, 你校校报正在征集向抗疫英雄学习的稿件, 请你根据以下表格内容写一篇关于抗疫英雄钟南山的人物传记。 人物传记模式 (ABCDE) 具体内容 第一段 A(admiration) 钟南山院士是 21 世纪中国最著名的医学家之一。 第二段 B(background) C(characteristic) D(deeds) 他于1936年10月20日出生于江苏省南京市, 于 1960 年毕业于北京医学院。

37、 2019 年末, 新冠肺炎暴发, 他冲到抗疫前线, 战胜重重困难, 取得显著成果, 被授予共和国勋章。 第三段 E(evaluation) 最让人印象深刻的是他精湛的医术以及不断战胜困难的能力。他是一个感动了无数中国人的人民英雄。 注意: 1.短文应包括表格所列的全部内容, 可适当发挥; 2.词数 80 左右。 参考词汇: 新冠肺炎 COVID-19; 共和国勋章 the Medal of the Republic _ 参考答案参考答案 Part I 一、1.mechanic; mechanical 2.defend; defence/defense 3.assist; assistance

38、; assistant 4.vivid; vividly 5.gifted; gift6.astronomer; astronomy 二、1.fault 2.Furthermore/Besides 3.vividly 4.outstanding 5.assistant 6.astronomers 7.concrete 8.concept 9.defend 10.shadows 三、1.inspiration 2.gifted 3.to assist 4.is shifted 5.steadily 6.Followed 7.mechanical 8.poured 9.defence 10.bri

39、lliantly 四、1. be traced back to 2. Above all 3. have a great impact on 4. in charge of 5. has dreamt of 6. come down with 7. think outside the box 8. break out Part II 一、1-4.CDCD 二、1-5.GFDCB 三、1-5.DDADB; 6-10.CABAC; 11-15.DDCBB 四、16.greater 17.who 18. for 19. returned 20.Faced 21.asked 22. his 23. s

40、uccessfully 24. what 25. inspiration 五、答案： Zhong Nanshan is one of the most famous medical scientists in the 21st century. Dr. Zhong Nanshan was born on 20 October 1936 in Nanjing, Jiangsu Province and graduated from Beijing Medical College in 1960. At the end of 2019, COVID-19 broke out and the who

41、le country fell into panic. Zhong Nanshan went out to fight for the people regardless of his own safety. Through great efforts, he overcame difficulties and achieved remarkable results. Finally, he was awarded the Medal of the Republic. What impresses people most about Zhong Nanshan is his superb medical skill and his ability to overcome difficulties. He is a national hero who moves countless Chinese people.