Unit 6　Section C　Developing ideas & Presenting ideas & Reflection 课后习题 （新教材）外研版（2020）选择性必修第三册.docx

1、Unit 6 Nature in words Section C Developing ideas some are red and some yellow. 答案 in bloom 3.The cat is every sound and movement. 答案 alert to 4.He is cold. 答案 trembling with 5.My mother always me do things that I dont like to do. 答案 urges;to .翻译句子 1.有毒的水正在渗入河里。(filter into) 答案 The poisonous water i

2、s filtering into the river. 2.英语老师督促我们做完家庭作业。(urge to) 答案 The English teacher urges us to finish our homework. 3.鹪鹩(wrens)很警惕地在树枝上休息。(alert to) 答案 Wrens are alert to rest in the branches. 4.校长做了一个热情洋溢的演讲。(a passionate speech) 答案 The headmaster gives us a passionate speech. 素养提升 .阅读理解 It is a questio

3、n that has long puzzled scientistsexactly why are tigers orange?One might think it makes them more obviousparticularly against a leafy green forest background.William Blake summed it up in his famous poem known by generations of schoolchildren:“Tyger,tyger,burning bright / In the forest of the night

4、.” But now the answer is at hand. While obvious to us,computer simulations (模拟) of what the big cats look to the main animals they hunt for,deer,show a different picture.Humans with normal colour vision,can see red,blue and green colours.But deer can only pick up blue and green light;they are effect

5、ively colour-blind to the colour red,like some humans.It means the tigers orange colouration looks green to them,allowing them to mix perfectly into the background,new research claims. Dr John Fennell at the University of Bristol and colleagues said that they used computers to estimate how noticeabl

6、e a given animal was.They did this by using images of the environment in which the animal lives,and then creating images to see whether the camouflage helps the animal to mix in. Dr Fennell writes that by simulating what the world looks like to animals who are “two-colour vision”someone who cannot d

7、iscover the difference between red and green“we also identify the most suitable colours for hiding and visibility”. Dr Fennell writes in the Royal Society Journal Inter Face:“Considering the coat of a tiger,it has fur that appears orange to a three-colour vision observer rather than some shade of gr

8、een,though the latter should be more appropriate colour for an attack hunter in forests.However,when viewed as a two-colour vision observer,the tigers colour is very effective.” The question then arises as to why tigers dont grow green coats.Dr Fennell and colleagues write that mammals (哺乳动物) are no

9、t able to produce green fur.To do so would “require a significant change to mammalian biochemistry”.There is only one mammal known to have green fur but this is achieved through what might be considered as,well,cheating,not exactly real. 【语篇解读】这是一篇说明文。为什么老虎是橙色的?这个长期困扰科学家的问题终于被科学 家们破解了。 1.Why does th

10、e author mention the poem in paragraph 1? A.To arouse readers interest in poems. B.To show the authors respect to the poet. C.To answer the question of the colour of the tiger. D.To stress the noticeable colour of the tiger to us. 答案 D 解析推理判断题。由“It is a question that has long puzzled scientistsexact

11、ly why are tigers orange?One might think it makes them more obviousparticularly against a leafy green forest background”可知所提 及的诗是为了例证文章开头的陈述对于我们人类来说,老虎的颜色太显眼了。故选 D项。 2.What colour is non-existent in the eyes of deer? A.Black. B.Red. C.Blue. D.Green. 答案 B 解析细节理解题。由第二段中“It means the tigers orange colo

12、uration looks green to them,allowing them to mix perfectly into the background,new research claims.”以及第四段中“animals who are two- colour visionsomeone who cannot discover the difference between red and green”可知在鹿的眼中是 没有红色系的,而橙色属于红色系。故选 B项。 3.What does the underlined word “camouflage” mean in paragraph

13、 3? A.The cover of something. B.The images of something. C.The way of hiding something. D.The way of hunting for something. 答案 C 解析词义猜测题。由第三段中“They did this by using images of the environment in which the animal lives,and then creating images to see whether the camouflage helps the animal to mix in.

14、”可知,他们通过 使用动物所处环境的图像来做到这一点,然后创建图像来观察伪装方式是否有助于动物分不清它们。 所以第三段画线的“camouflage”一词是指隐藏的方式。故选 C 项。 4.What can be inferred from the last paragraph? A.The colour of tigers sometimes cheats people. B.Getting green may prevent tigers from being extinct. C.There are no mammals with real green fur in the world.

15、D.The tigers fur will probably evolve into green in the future. 答案 C 解析推理判断题。由最后一段中“ mammals are not able to produce green fur.There is only one mammal known to have green fur but this is achieved through what might be considered as,well,cheating,not exactly real.”可推断出,世界上没有绿色皮毛的哺乳动物。故选 C项。 .应用文写作 假

16、定你是李华,你从报纸上了解到你市图书馆将举办关于中国宋代著名文学家苏轼的讲座。 你的美国朋友 Henry正在你市一所大学学习中国古代诗词,你觉得这场讲座对他会有所帮助,请用英 文给他写一封邮件,邀请他一起参加。内容包括: 1.讲座的时间、地点; 2.讲座的主要内容。 注意: 1.词数 100 左右; 2.可以适当增加细节,以使行文连贯; 3.邮件格式已给出,但不计入总词数。 Dear Henry, Yours, Li Hua 参考范文 Dear Henry, Im writing to invite you to go to a lecture about Su Shi,a Chinese l

17、iterary master from the Song Dynasty. The lecture,which is expected to be held on the second floor of the City Library,will last two hours from 9 am to 11 am this Sunday Morning.Its said that the personal life of Su Shi will be talked about during the lecture,as well as an appreciation of some of hi

18、s famous works. I think this lecture will contribute a lot to your understanding of Chinese classic poetry and your study in the university.Therefore,if you are available this Sunday and interested in this lecture,please e-mail me so that we can decide our meeting time and place earlier. Looking for

19、ward to your reply. Yours, Li Hua .概要写作 Blowing a Few Tops Ever stopped to consider the upside of volcanic eruptions?Its not all death,destruction and hot liquid rockscientists have a plan to cool the planet by simulating one such eruption. Solar geoengineering involves simulating a volcano by spray

20、ing aerosols(气溶胶) into the atmosphere.When they combine with oxygen,droplets of sulfuric acid (硫酸) form.These droplets reflect sunlight away from Earth,cooling the planet.All good in theory,but the consequences are largely unknown and a few could be disastrous.In a study recently published in Nature

21、 Communications,researchers led by Anthony Jones,a climate scientist from the University of Exeter,found that using this technology in the Northern Hemisphere could reduce the number of tropical winds hitting the U.S.and Caribbean.But theres an annoying exchange:more winds in the Southern Hemisphere

22、 and a drought across the Sahel region of Africa.Thats because the entire climate system is linkeddisrupting one region will invariably affect another.How would a nation react if another was causing its weather to get much worse?Would that be an act of war? There is,however,a case for using solar ge

23、oengineering on a global scale.Jones says it could be used to “take the edge off” the temperature increases scientists are predicting.It could be used while the world searches for more effective strategies. The study also highlights a far bigger problem with solar geoengineering:its complete lack of

24、 regulation.“Theres nothing that could stop one country just doing it,” Jones says.“You only need about 100 aircraft with three flights per day.It would cost $1 billion to $10 billion per year.” He adds,“Its deeply disturbing that we have this technology that could have such a massive influence on t

25、he climate,yet theres just no regulation to stop countries or even organizations from doing it.” Jones cautions that there is much about the climate system we do not understand,as well as far more work that will need to be done before solar geoengineering is considered safeor too dangerous to even d

26、iscuss. 参考范文 The planet could be cooled by using solar geoengineering,if scientists simulate an erupting volcano.(要点 1)The method would probably work,but it could have devastating side effects.(要点 2)The fact that there is no law to stop any country or company from using this technology worries scientists.(要 点 3)The technology requires further study before being put into use.(要点 4)