课时分层作业16 （新教材）外研版（2020）选择性必修第二册.doc

1、课时分层作业(十六) .单词拼写 1We restrict(限制) the number of students per class to 50. 2He stared at the diamonds with greedy(贪婪的) eyes. 3I asked three building firms to estimate for the repairs to the house. 4We saw a man enter the room like a thief in the night. 5In that country most crimes are committed by yo

2、ung men. 6Contrary to some of the reports that you see, crime(犯罪) along the border is down. 7Factories are grouped in the southern suburb(郊区) of the city. 8Next time when we go to the beach we should be careful with our garbage 9He had administrators under him but made the crucial(关键性的) decisions hi

3、mself. 10In terms of urban(城市的) architecture, the river plays no role at all. .阅读理解 A The survival of about one fifth of the worlds vertebrates animals with a backbone is considered threatened, according to new research published in the journal Science.Thats a large fraction of Earths animals, but t

4、his new study held some good news too.Conservation efforts by humans have slowed the loss of many species of amphibians (两栖动物), birds, and mammals.Losses in these groups would have been about 20 percent greater had it not been for recent action of protection. Among the animalconservation success sto

5、ries is one about birds called Mauritius kestrels (红隼)In the 1970s, just four of these birds were left in the world.Through a special breeding program, scientists were able to increase their number to about 1，000 and release them into the wild. Humpback whales (座头鲸) have benefited greatly from recen

6、t conservation efforts as well.They were once on the International Union for Conservation of Natures (IUCN) list of species threatened with extinction.But the species is now in less danger, thanks to laws that ban whale hunting.The IUCN even moved the humpback into “species of the least concern” Ove

7、r the past 100 years, the white rhino (犀牛) of South Africa has also made an amazing recovery because of habitat protection.The breed multiplied from just 50 animals to about 17，000.Their home has been turned into a protected area, safe from poachers (people who hunt animals illegally) and other thre

8、ats. Stuart Butchart, one of the authors of the new study in Science, is encouraged by the positive effects of conservation.But he says, “Biodiversity (生物多样化) of species is in a frightening state.Its situation is getting worse.But our results show we can turn the situation around.” New conservation

9、policies hopefully are on the way.One hundred ninety- three countries recently met in Japan at the Convention on Biological Diversity to set goals for preserving threatened wildlife and their habitats.Only 1 percent of ocean and 12 percent of land areas were protected under earlier agreements.Two ne

10、w goals set by the group are to designate (指定) 10 percent of the worlds ocean and 17 percent of land environments as protected areas to help increase endangered- animal population. 【语篇解读】 本文是一篇环保类说明文。由于人类采取了一系列的保护措 施， 某些濒危动物的数量逐渐增加， 但对于人类来说保护物种多样性任重而道远。 1What can we learn from the passage? AThough t

11、here was a special breeding program, the number of Mauritius kestrels didnt increase. BConservation efforts should not only be made by human beings. CHumpback whales are not on the International Union for Conservation of Natures list now. DBecause many groups are working to protect wildlife, natural

12、 habitats are in good condition. C 推理判断题。 根据第三段第二句和最后一句可知， 座头鲸曾经在该联盟 的名单上，但现在已被去掉。 2Which of the following is not mentioned in peoples conservation efforts? AHabitat protection. BBreeding programs. CLaws of banning whale hunting. DCreation of studying organizations. D 细节理解题。第二、三、四段分别列出了三种受益于人类保护的动物，

13、 毛里求斯红隼数量的增加是由于一项特殊的繁殖计划， 座头鲸是受益于禁止捕鲸 的法律，白犀牛数量的增加是受益于人类对它的栖息地的保护。而 D 项没有提 到。 3The author uses some successful animal- conservation examples to show that _ Aconservation works Bman conquers nature Canimals are more important Dlaw is fair A 推理判断题。 作者在文中引用毛里求斯红隼、 座头鲸和南非白犀牛三个 成功的例子，目的是表明人类的保护措施起了作用。 4

14、The purpose of the new goals set by the Convention on Biological Diversity is to _ Aprotect ocean habitats Bbuild land environments Cincrease the population of endangered animals Dcontrol animal population C 细 节 理 解 题 。 根 据 最 后 一 段 最 后 一 句 “to help increase endangered- animal population”可知，设立两项新目标的目

15、的是增加濒危动物的 种群。 B I work with Volunteers for Wildlife，a rescue and education organization at Bailey Arboretum in Locust Valley.Trying to help injured，displaced or sick creatures can be heartbreaking；survival is never certain.However，when it works，it is simply beautiful. I got a rescue call from a woma

16、n in Muttontown.She had found a young owl(猫 头鹰) on the ground.When I arrived， I saw a 2to 3weekold owl.It had already been placed in a carrier for safety. I examined the chick(雏鸟) and it seemed fine.If I could locate the nest，I might have been able to put it back，but no luck.My next work was to cons

17、truct a nest and anchor it in a tree. The homeowner was very helpful.A wire basket was found.I put some pine branches into the basket to make this nest safe and comfortable.I placed the chick in the nest，and it quickly calmed down. Now all that was needed were the parents，but they were absent.I gave

18、 the homeowner a recording of the hunger screams of owl chicks.These advertise the presence of chicks to adults；they might also encourage our chick to start calling as well.I gave the owner as much information as possible and headed home to see what news the night might bring. A nervous night to be

19、sure，but sometimes the spirits of nature smile on us all！ The homeowner called to say that the parents had responded to the recordings.I drove over and saw the chick in the nest looking healthy and active.And it was accompanied in the nest by the greatest sight of allLUNCH！The parents had done their

20、 duty and would probably continue to do so. 【语篇解读】 本文是一篇记叙文。文章主要讲述了作者救助一只猫头鹰幼 雏的经历。 5What is unavoidable in the authors rescue work according to Paragraph 1? AEfforts made in vain. BGetting injured in his work. CFeeling uncertain about his future. DCreatures forced out of their homes. A 细节理解题。根据第一段中

21、的“Trying to help injured，displaced or sick creatures can be heartbreaking； survival is never certain.”可知，救助野生动物的工 作有时让人悲伤，因为不能保证野生动物会存活下来，也就是说，救助野生动物 的努力可能会白费，故选 A 项。 6Why was the author called to Muttontown? ATo rescue a woman. BTo take care of a woman. CTo look at a baby owl. DTo cure a young owl.

22、 C 细节理解题。根据题干中的 Muttontown 可定位到第二段。根据第二段 中的“She had found a young owl(猫头鹰)on the ground.When I arrived，I saw a 2 to 3weekold owl.”可知，一位女士在地上发现了一只猫头鹰幼雏，她给作者打 了求助电话，由此可知，这位女士让作者去 Muttontown 是为了让作者看一看那 只猫头鹰幼雏，故选 C 项。 7What made the chick calm down? AA new nest. BSome food. CA recording. DIts parents. A

23、 细节理解题。根据第四段中的“I placed the chick in the nest，and it quickly calmed down.”可知，作者为猫头鹰幼雏做的新鸟巢让它很快安静下来， 故选 A 项。 8How would the author feel about the outcome of the event? AIts unexpected. BIts beautiful. CIts humorous. DIts discouraging. B 推理判断题。根据最后一段可知，作者这次救助猫头鹰幼雏的工作非常 成功，再结合第一段中的“However，when it work

24、s，it is simply beautiful.”可知， 救助工作成功让作者感觉极好，故选 B 项。 .阅读七选五 Are you sometimes stressed? Singing is a simple and effective way to reduce stress.It is beneficial mainly in the following three aspects. Physical Benefits 1 This is especially recommended for the elders and those who have some form of disa

25、bility in their voice.However, it is important to find a capable instructor to employ good singing techniques so as not to further damage vocal cords (声带) or lungs. Singing also helps to improve your posture (姿势)Most people think that singing begins and ends with their mouth. 2 Singing practice will

26、 get you used to the proper body position of standing and help you form the good habit of standing straight. Emotional Benefits Singing helps in reducing your depression and lowering your stress level.When you sing, your body releases chemicals that make you feel happy, easing the tension and helpin

27、g you to relax. 3 Social Benefits The social benefits of singing are huge. 4 So people who suffer from stage fright are advised to sing in front of family and friends before a live performance. Singing is also very good for improving your communication skills.It is said that singing to babies helps

28、to prepare their brains for language and may lessen the risk of language problems later in life. 5 The time spent in group singing, whether in a choir or at karaoke, creates a deep and lasting bond of friendship. ATry to regain your memory by singing. BFirst, it can help build up your confidence gre

29、atly. CWhen you sing, you can give your lungs a workout. D Singing helps you to strengthen your immune system. EFor adults, singing also enlarges your circle of friends. FIn fact, the position of each body part affects your voice. GSo, start to sing your favorite song next time you are feeling upset

30、. 【语篇解读】 唱歌是一种简单有效的减压方式。其减压主要在三个方面体 现。 1C 根据本段最后一句“so as not to further damage vocal cords (声带) or lungs”中提到了 lungs 可对应到 C 选项中 lungs，故选 C。 2F 根据本段第一句“Singing also helps to improve your posture(姿势)” 可知本段强调唱歌对人体姿势的影响， posture 可对应到 F 选项中的 the position of each body part，故选 F。 3G 根据本段第一句“Singing helps in

31、 reducing your depression and lowering your stress level.”可知唱歌能有助于减轻你的抑郁，降低你的压力水平。 本空位于段尾起总结性作用， 可推测是总结上文唱歌的减轻沮丧感的作用， 鼓励 在感觉沮丧时唱歌。 故 G 选项“下次当你感觉沮丧的时候， 就唱你最喜欢的歌” 符合题意，故选 G。 4B 根据下文“So people who suffer from stage fright are advised to sing in front of family and friends before a live performance.”可知建议患有舞台恐惧症的 人在现场演出前在家人和朋友面前唱歌。可知唱歌有助于不自信的人树立自信， 故选 B。 5E 根据下文“The time spent in group singing, whether in a choir or at karaoke, creates a deep and lasting bond of friendship.”可知无论是在唱诗班还是在 卡拉 OK，花在集体演唱上的时间都能建立起深厚而持久的友谊。故唱歌可以扩 大人的朋友圈，帮助人交朋友，故选 E。