2020-2021学年人教版英语选修6同步课时作业： UNIT 4 GLOBAL WARMING PERIOD II LEARNING ABOUT LANGUAGE WORD版含解析.doc

1、Unit 4 Period II Learning about Language一、1.Mr. Li is a gentle man, who does not get angry easily. 2.The growing trend for single mothers is to bring up children by themselves.3.Many believe that poverty is a direct result of overpopulation.4.Jean felt more comfortable in informal clothes.5.Public w

2、orries are the threats of the very existing of the nuclear power industry. 6.Environmentalists advocate that some measures (take) to protect the environment.7.Honesty and hard work are the factors ( contribute) to success and happiness.8.People went outdoors (refresh) by the cool breeze of autumn.9.

3、Our high living standards cause us (consume) 25 percent of the worlds oil.10.Do you believe in the (exist) of God?二、Its most keen advocates say that global warming is gradually ruining our parts of our planet. But the effects of the phenomenon might be felt more positively a little closer to home, a

4、fter scientists claimed that it would make flowers smell sweeter.Some flowers could give out a smell that is nine times more fragrant than they currently produce, according to a report. It says that a temperature increase of between 1C and 5C will vastly increase the ability of flowers to produce th

5、eir sweet smells. The study suggests that plants are able to produce more terpenes (萜烯)the chemicals that give them their smellsin hotter conditions. Despite the environmental risk linked to climate change, the effect on flowers could also help bee populations as the stronger smells make flowers eas

6、ier to find and pollinate. It also found that the effect could be more important in cooler countries such as the UK and would have a strong impact on fruit trees. The findings come as the unseasonably warm autumn weather this year has led to reports that plants are being “tricked ”into blooming earl

7、y.Guy Barter described the findings as interesting and said it could have an important effect on lightly scented flowers. “We think about climate change in terms of rising temperatures and sea levels, but there are more delicate potential effects which we have not thought about，” he said. Last year,

8、 experts warned the average global temperature had risen by 0. 5C in 50 years. They predicted temperatures would increase by 3C over the next century, causing a rise in sea levels，flooding, disease outbreaks and mass migration of refugees (难民）. The researchers looked at a variety of plants. In the p

9、aper the researchers said, “The species with the highest increases in emissions I (排放物）were those with the lowest fragrance I rates. The increases calculated for floral terpene emissions show that very important increases in the amount of floral scents will likely occur in a warmer world. The rates

10、of floral terpene emissions by the end of the century could increase 0. 349. 1 limes because of a 5C increase in the average maximum temperature during the flowering peak of the season.1.We can infer from the text that in England .A.plants bore more fruits in autumn this yearB.the seasons werent in

11、order this whole yearC.the autumn of this year was a little coolerD.plants began to produce flowers early in autumn this year2.What Barter said indicates that .A.every coin has two sidesB.a miss is as good as a mileC.dont claim to know what you dont knowD.dont put the cart before the horse3.The last

12、 paragraph implies that in hotter conditions .A.plants will have the lowest fragrance ratesB.plants will send more sweeter chemicalsC.plants will suffer the rising temperatureD.plants will finish their flowering peak soon4.Which is the best title of the passage?A.Will plants produce more chemicals i

13、n the future?B.Is it easier to find sweeter flowers everywhere?C.Could global warming make flowers smell sweeter?D.Do flowers smell stronger in the cold temperature?三、Some new car models are fashionable. Others can go a long way with only a little gas. But all are taking advantage of technology that

14、 is making driving safer and (easy).The new Ford Escape has technology that helps the car avoid crashes. A new control system changes the cars speed (keep) a safe distance from other cars on the road. It works using sensors that measure the Escapes distance from other vehicles. (drive) can connect t

15、o the Ford Escapes electronic system with their smartphone. The phone can start and track their car from anywhere. emergency vehicles are near, the Heedful Audio Alert System, or HAAS, will warn drivers. The device hasa sensor detects (发现）the sound of an emergency vehicle siren(气笛). The device then

16、(send) a warning to the drivers phone.A company ( call ) Sober Steering has developed a device to stop drunken drivers. The device can detect alcohol in the skin. If the drivers alcohol level is too high,_ will shut down the vehicle. Just as technology is changing life at home and at work, it (chang

17、e) life on the road as well.答案以及解析一、1.答案：mild2.答案：tendency3.答案：consequence4.答案：casual5.答案：existence6.答案：(should) be taken解析：【解题思路】考查虚拟语气。句意:环境保护论者提倡采取一些措施来保护环境。advocate提倡，拥护，主张， 后可跟that从句，从句中的谓语动同要用（should + )动词原形， 且measures与take之间是被动关系，故填（should) be taken。7.答案：contributing解析：【解题思路】考査非谓语动词。句意:诚实和努力工

18、 作是促进成功和快乐的因素。分析句子结构可知，此处应填非谓语 动间；contribute和factors之间是逻辑上的主谓关系，因此应用 contributing作后置定语08.答案：to be refreshed解析：【解题思路】考査非谓语动词。句意：人们走到户 外以秋天凉爽的微风来清醒自己。refresh和People是逻辑上的动 宾关系，且根据句意可知，这里是动词不定式作目的状语，所以用不 定式的被动式。9.答案：to consume解析：【解题思路】考査非谓语动同。句意：我们的高生活水平使我们消耗了世界上25%的石油。cause sb. to do sth.使某人 做某事，是固定用法。

19、10.答案：existence二、答案：DABC解析：1.D【命题意图】考查推理判断。【解题思路】根据第四段The findings come as the unseasonably warm autumn weather this year has led to reports that plants are being tricked into blooming early可知，英国的秋天反常地温 暖，导致花开得早了。故选D。2.A【命题意图】考查推理判断。【解题思路】 根据第一段中的it would make flowers smell sweeter和第五段中的We think abo

20、ut climate change in terms of rising temperatures and sea level, but there are more delicate potential effects which we have not thought about可知，A 项符 |合题意。3.B【命题意图】考查推理判断。【解题思路】根据最后一段中的 “The increases calculated for floral terpene emissions show that very important increases in the amount of floral

21、scents will likely occur in a warmer world可知，经过研究发现，将来在更温暖的世界里,花香的量将大大增加。4.C【命题意图】考查主旨大意。【解题思路】本文主要介绍了植物能够在温度较高的环境中 分泌更多产生香气的萜烯。气温上升到1度到5度时能够极大 地增强花朵产生香甜气味的能力。在全球气候变暖的影响下， 一些花朵的气味甚至比原来香甜了9倍。故C项最适合做文章的标题。三、答案：easier；to keep；by；Drivers；When/If/Once；that/which；sends；called；it； is changing解析：1.【解题思路】考查形

22、容词的比较级。此处与safer并列，故用形容词的比较级。2.【解题思路】考查非谓语动词。为了与路上其他车辆保持安全的车距，一种新的控制系统可以改变车速此处作目的状语，故用不定式结构。3.【解题思路】考查介词。这套系统是通过利用测量车距的传 感器来发挥作用的。此处作方式状语，故用介词by。4.【解题思路】考查名问。根据本句中的their可知，此处应 用名词的复数形式。5.【解题思路】考查连同。当紧急车辆接近时， HAAS就会对司机发出警告。空处引导时间状语从句，意为当时，故填When。也可填If 如果或Once旦。6.【解题思路】考查语从句。先行词为a sensor,指物， 定语从句中缺少主语,故填关系代词that或which。7.【解题思路】考查时态和主谓一致。根据语境可知此处用 一般现在时，主语为第三人称单数形式，故填sends。8.【解题思路】考查非谓语动词。分析句子结构可知，A company和call之间为被动关系，故用过去分词作后置定语。9.【解题思路】考查代词。根据语境可知，此处指代上文提到的 device,故用 it。10.【解题思路】考查动词的时态。正如科技正在改变 家庭中和工作中的生活一样，它也在改变着在马路上的生活。此处指现阶段正在发生的事情，故用现在进行时。