2020_2021学年高中英语课时分层作业Unit3ScienceandnatureSectionⅠⅡ牛津译林版必修5.doc

1、课时分层作业(七)Section 、(建议用时：35分钟)语言知识练习固基础单句语法填空1She is the first one to understand(understand) that problem.2On the other hand，we students have to do masses of homework both at home and at school.3Many Chinese college graduates leave their country to get further education in America with the intention

2、of getting better jobs in the future.4A lot of students waste their spare time surfing the Net；as a consequence，they often fail to finish their homework on time.5Turn off the TV，so you can concentrate on your homework.6Nowadays，some hot network languages are adopted(adopt)in some official media，such

3、 as CCTV and Peoples Daily.7If he improved(improve) his IT skills，hed easily get a job.8The children were anxious for their mother to come(come) as soon as possible.9Exactly(exact) speaking，you are to blame for the accident.10No matter what happens，we must push ahead with our plan.高考题型练习提能力.阅读理解Plan

4、t cloning has been an agricultural technique used by farmers and gardeners for centuries.Grafting(嫁接) is a common form of plant cloning.Many plants in nature actually clone themselves and reproduce asexually.Cloned plants are much more predictable than normal plants，so their yield(产量)is more reliabl

5、e.Cloned plants also reproduce faster，limiting the amount of time between planting and harvesting.It is also often cheaper to produce seeds through cloning than through traditional methods.Plants can essentially be optimized so that farmers or individual growers always have the best seeds available.

6、With more yield at a faster rate，farms can produce more food for more people while decreasing overall costs.Cloning can be used to wipe out diseases that previously killed off entire fields of crops.This would make plants immune(免疫的)to the kinds of diseases that farmers and gardeners around the worl

7、d fear each year.Crop failures due to disease and virus could become a thing of the past.Also，plants that are near extinction can be brought back to life through cloning.Through cloning scientists can develop“super”fruits and vegetables of superior nutritional quality.This could make for a healthier

8、 population overall.This is already being done through selective pollination(授粉)，and genetic cloning could take it to the next level.By plant cloning we have a population of identical plants and all these plants equally suffer from the same diseases，but in nature the weak would die and the strong wo

9、uld survive.While there are some dangers to consider with plant cloning，there are plenty of benefits that could prove vital to the propagation(繁衍)of the human species.【语篇解读】本文主要讲了克隆植物的好处：增加农作物产量、提高植物的免疫力、提高水果和蔬菜的质量等。1The underlined word“optimized”in Paragraph 2 can be replaced by“ ”AenlargedBproduce

10、dCperfectedDexaminedC词义猜测题。根据第二段中该词的下文growers always have the best seeds available“种植者可以有最好的种子使用”可猜测该词意为“好的或优的”。2According to the text，cloned plants Ahave lower yield than normal plantsBhave a short growth cycleCresist various kinds of diseasesDneed little care from peopleB推理判断题。根据第二段第二句可知，克隆植物繁殖快，从

11、种植到收获，间隔时间短，也就是生长周期短。3What can we infer from the text?AThe fruits produced by cloned plants taste much better.BThere are more cloned plants than normal plants.CPlant cloning can disturb the laws of nature.DPeople should avoid eating cloned fruits.C推理判断题。根据最后一段可知，克隆植物会造出完全一样的植物，它们也可能会患上同样的病。这与自然界中适者生

12、存的法则是相反的。所以说克隆植物可以打破自然法则。4What is the main purpose of the text?ATo warn the negative effects of plant cloning.BTo present different kinds of plant cloning.CTo predict the future of plant cloning.DTo inform us about the advantages of plant cloning.D写作意图题。根据各段的段首句可知，本文主要讲克隆植物的好处：增加农作物的产量、提高植物的免疫力、提高水果

13、和蔬菜的质量和利于人类的繁衍等。.阅读七选五Are These the Best Years of Your Life?The ups and downs of life may seem to have no predictable plan.But scientists now know there are very clear life patterns that almost all people share.Even if you have passed some of your best years, you still have other good years to come.

14、 1 When are you smartest? From 18 to 25, according to IQ.scores; but you are wiser and more experienced with increasing age.Youre sharpest in your 20s; around 30, mental abilities begin to decline, particularly your ability to do maths. 2 Your vocabulary at age 45, for example, is three times as gre

15、at as when you graduated from college.At 60, your brain possesses almost four times as much information as it did at age 21. 3 You have the best physical sense of yourself from 15 to 24, when you feel energetic all the time.The best professional sense seems from 40 to 49.Before age 24, we believe th

16、at our happiest years are yet to come.Over 30, we believe that theyre behind us.A National Health Survey agrees: After age 30, we “become more realistic and do not view happiness as a goal in itself.If we keep our health, achieve professional and emotional goals, then happiness, we feel, will follow

17、.” 4 Generally between 30 to 39, but the peak(顶峰) varies with different professions.Mozart wrote a symphony by age eight, and Mendelssohn composed his bestknown work，A Midsummer Nights Dream, at 17, but most of the great music was written by men between 33 and 39.Though the peak in most fields comes

18、 earlymost Nobel Prize winners did their top research in their late 20s and 30s, creative people continue to produce quality work throughout their lives. 5 AWhen are you happiest?BWhen are you most creative?CBut your ability to complete other tasks climbs.DThe above gives you an accurate figure.ECer

19、tain good years seem to come later in life.FFor people who are creative, there is no upper age limit.GThe human life journey cannot be charted by a clear life pattern.【语篇解读】本文谈论我们生命中的黄金时期。1E根据上句：即使你度过了一些最好的时光，你还有好日子要来。可知，某些美好的岁月似乎会在以后的生活中出现。故选E。2C根据上句：20多岁的时候你的思维最敏捷；30岁左右，记忆力开始衰退，尤其是你的数学计算能力。再根据空格下文

20、：比如，你45岁时的词汇量是你大学刚毕业时的三倍；60岁时，你大脑中拥有的信息量几乎是你21岁时的四倍。可知，此空表示一种转折关系，句意：但你做其他事情的能力却在增长。故选C。3A此空是段落首句。根据下文：你对自己的身体状况感到最满意是15至24岁，对事业感到最满意是40至49岁。24岁之前，我们认为我们最幸福的日子还没到来；过了30岁，我们又认为最幸福的日子已经过去了。可知，本段在谈论，你什么时候最幸福？故选A。4. B本空是段落首句。根据下文：一般说是在30至39岁之间，但其高峰期又因职业而异。再根据下面介绍的莫扎特、门德尔松，可知，本段谈论的是，你什么时候最富有创造力？故选B。5F本空是

21、段落尾句，起概括总结的作用。根据上文：尽管在大多数领域中，这种高峰期均来得很早大多数诺贝尔奖获得者都是在其30岁前那几年和30至40岁之间作出了最突出的成就。由此可知，具有创造力的人终其一生都能做出高质量的工作。故选F。【解题策略】做七选五时，一定要注意空格前后与横线句子之间的关系，特别注意and，but，so，besides，however等词汇的运用。它们连接了上下文，起着承上启下的作用。像but(但是)、however(然而)，表示转折，这说明前后的内容相反或相对。把握住这一点，做起题来就会得心应手。比如本题第2小题，根据上句：“20多岁的时候你的思维最敏捷；30岁左右，记忆力开始衰退，

22、尤其是你的数学计算能力。”再根据空格下文：“比如，你45岁时的词汇量是你大学刚毕业时的三倍；60岁时，你大脑中拥有的信息量几乎是你21岁时的四倍。”可知，此空表示一种转折关系，句意：但你做其他事情的能力却在增长。故选C。.语法填空Yiwu, China, April 29 (Reuters)The first freight train (货运列车) to run from Britain to China arrived in the city of Yiwu in eastern China on Saturday，1. (complete) its 12，000 kmsjourney.T

23、he train，2. carried items such as vitamins and baby products，3. (greet) by traders and shipping company officials when it arrived at Yiwu West station after departing London on April 10.The first freight train from China arrived in Britain in January.4 (operate) by Yiwu Timex Industrial Investment,

24、the YiwuLondon freight service makes London 5. 15th European city to have a rail link 6. (direct) with China after the 2013 beginning of the “One Belt, One Road” initiative (倡议) by Chinese President Xi Jinping.“This freight train is a 7. (reflect) of the achievements of trade，” Yiwu Timex Chairman T

25、immy Feng told Reuters Television.After leaving London the bright red train passed through seven 8. (country)France, Belgium, Germany, Poland, Belarus, Russia and Kazakhstanbefore arriving in Yiwu.For Britain，the train 9. (be) part of an effort to strengthen trade links with the rest of the world as

26、 it prepares to leave the European Union 10. two years time.【语篇解读】 本文属于社会新闻类。义乌伦敦列车，载有维生素和婴儿用品的列车在4月10日离开伦敦后于4月29日抵达义乌西站，受到了贸易商和船运公司官员的欢迎，这是在中国国家主席习近平倡导的“一带一路”之后欧洲国家与中国有铁路直接与中国联系的第15个城市。1completing考查非谓语动词。句意：中国的义乌，4月29日，星期六第一列货车从英国运行到中国抵达中国东部的义乌市，完成其12000公里的旅程。分析句子可知，从英国发出的第一列货车到达义乌，完成了这个旅程。而列车与comp

27、lete是主动关系，要用动词的ing形式作状语，因此用completing。2which考查非限制性定语从句的引导词。句意：火车载有维生素和婴儿用品等物品。根据句子可知，The train是先行词，在定语从句中作carried 的主语，而火车是物，故用 which。3was greeted考查谓语动词的时态及语态。根据句意：这列载有维生素和婴儿用品的火车在4月10日离开伦敦后抵达义乌西站，受到了贸易商和船运公司官员的欢迎。分析句意可知是火车受到了欢迎，故要用被动，而此事发生在过去(4月10日)，故用一般过去时，因此填was greeted。4Operated 考查过去分词作状语。句意：义乌伦敦

28、货运服务由义乌德诚实业投资经营。分析句意可知，义乌伦敦货运服务与动词operate是被动关系。根据“operated by Yiwu Timex Industrial Investment(完整的句子为the YiwuLondon freight was operated by Yiwu Timex Industrial Investment), the YiwuLondon freight service makes London.”分析句子可知，本句是省略句，而operate的逻辑主语就是主句的主语YiwuLondon freight service，二者是被动关系。因此要用过去分词作状语

29、，故填operated。5the考查冠词。句意：义乌伦敦货运公司使伦敦成为欧洲第十五个有铁路与中国连接的城市。在序数词前要加定冠词the，故填the。6directly考查副词。句意：2013年初中国国家主席习近平倡议下的“一带一路”之后，义乌伦敦货运服务使伦敦成为第十五个有铁路直接与中国相连的欧洲城市。根据句意可知，direct(是形容词)在此修饰动词短语“have a link with”，因此要用副词修饰动词，故用directly。7reflection考查名词。句意：这列货运列车是贸易的成就的反映。分析句子可知，冠词a后是名词，而reflect是动词，故用其名词 reflection。8countries考查名词的复数。根据句子可知，country前被seven修饰，因此要用其复数形式countries。9is考查主谓一致。分析句子可知，be动词的逻辑主语是the train，是单数，故要用 is。10in考查介词。根据句意，可知英国准备在两年后离开欧盟，表示将来时，可知是在两年后，故用介词in。