2019-2020学年北师大版高中英语选修8练习学案:Unit 22 课时跟踪练(三) Lesson 2 & Lesson 3 — Prereading
2019-2020学年北师大版高中英语选修8练习学案:Unit 22  课时跟踪练(三)  Lesson 2 & Lesson 3 — Prereading第4页

  解析:选A 词义猜测题。文章主要讲述灵长类动物因为人类活动而濒临灭绝,所以A项为正确答案。

  7.According to Paragraph 2, we can infer that ________.

  A.Southeast Asia is terrified by primates

  B.Primates in Southeast Asia are in critical danger

  C.there are more dangerous animals in Southeast Asia

  D.monkeys in America are in different degrees of extinction compared to other areas

  解析:选B 推理判断题。根据第二段中"What is happening in Southeast Asia is terrifying ... To have a group of animals under such a high level of threat ..."可知,在东南亚有一群动物受到极大威胁,其危险程度高于我们记录的任何其他物种受到的威胁,故选B。

  8.Which of the following is NOT true according to the passage?

  A.The International Primatological Society Congress conference lasted six days.

  B.It is not late to take measures to protect primates in Mittermeier's opinion.

  C.Seventy percent or more primates are critically endangered in Asia.

  D.Human efforts have paid off in protecting the Black Lion Tamarin in Brazil.

  解析:选C 细节理解题。根据短文第二段中的"In Asia, more ... endangered or critically endangered - meaning they could disappear soon."可知,亚洲70%多的灵长类动物按照濒危程度划分为脆弱的、濒危的和极度濒危的,而不都是极度濒危的,故选C。

  C

  In the atmosphere, carbon dioxide allows the sun's rays to enter but prevents the heat from escaping. According to a weather expert's prediction, the atmosphere will be warmer in the year 2050 than it is today, if man continues to burn fuel at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere.

  In the past, concern about a man­made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels. Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth.

However, most of the fuel is burnt in the northern part of the earth, where temperatures seem