题目内容

Stop cutting trees, _______ the earth will become worse and worse.

A．and

B．then

C．because

D．or

解析试题分析：and和，并且；then 那么，然后；because因为；or是否，或者。句意：不要砍树了，否则地球会变得越来越糟糕。结合语境可知选D。
考点：连词辨析
点评：连词在句子中主要起联系上下文的作用，他们之间的区别就是表示逻辑关系的不同，所以在解题时先要理解上下文含义，然后根据上下文逻辑关系选择合适的连词。连词的用法都比较多，语义之间还有交叉，熟记其基本应用规则，了解其区别，注意固定搭配对象，是做好此类题型的关键。

练习册系列答案

Stop cutting trees, _______ the earth will become worse and worse.

A.
and
B.
then
C.
because
D.
or

Today we can see that many people are cutting down the trees in the forests. A lot of lands have become deserts. If we read newspapers, we’ll learn that the forests on the earth are getting smaller . We are cutting down large numbers of trees we need wood and farmland. Some scientists say that there will not be any great forests 20 or 30 years.

What will happen if the forests disappear? A lot of plants will die and the animals will

their homes. In many places the new farmland will soon look the old desert. Crops will not grow there. There won’t be enough , and the weather will get hot and dry. If the climate of the earth changes, life will be for everyone. Our living environment will become . More and more rich farmland will disappear. We will suffer a lot from both droughts (干旱) and floods.

It’s our duty the forests well. Everyone should try his best to make a contribution (贡献) to taking care of the forests. Stop cutting down the trees and make the world greener!

1.A. rich B. low C. lonely

2.A. on time B. all the time C. in time

3.A. or B. so C. because

4.A. at B. on C. in

5.A. find B. build C. lose

6.A. up B. like C. at

7.A. snow B. rain C. wind

8.A. easy B. happy C. hard

9.A. better and better B. worse and worse C. bigger and bigger

10.A. to protect B. do C. to do

请认真阅读下面短文，并根据短文内容回答问题。

Microblogs: a two-sided blade(双刃剑)

Micro-blogging has been growing quickly over the past year. As a result, many other forms of social networking are no longer popular, even if they just came into being several years ago. However, micro-blogging is a two-side blade. It helps, but it also hurts.

Micro-blogging is famous for spreading messages almost immediately. It also helps the public manage some agencies and organizations. For example, in March 2011, some micro-bloggers persuaded the Nanjing government to stop cutting 600 old trees in the downtown area; after a serious earthquake and tsunami(海啸) hit Japan, micro-bloggers called for giving a helping hand to the Japanese victims. In July, micro-bloggers made clear the “Guo Meimei” scandal（丑闻）, and brought the Red Cross Society of China under investigation.

Like everything in life, micro-blogging also has an opposite side.

Guo Meimei, who was involved in the scandal of the Red Cross Society, suffered from all kinds of online attacks, and said she was being followed up on and even threatened. Another problem is the spreading rumors（谣言）, such as the rumor that Shanxi was going to be struck by a big earthquake and “Jin Yong’s death”—Jin Yong is a Chinese novelist famous for his wuxia novels.

In the online world, large amounts of information is easily spread to a large network, but sometimes there is no official source. So it’s highly important for everyone to have the ability to tell truth from rumor. It is also suggested that Internet companies should stop the accounts of users who spread rumors.

1.Why are many forms of social networking no longer popular?

2.What is micro blogging famous for?

3.Who persuaded the Nanjing government to save 600 old trees?

4.What are bad points of micro-blogging?

5.How can people deal with the online world?

It 's our duty to_________people_________too many trees.

A. stop; cutting down B. prevent, to cut down

C. keep; cutting down D. make; cut down

Stop cutting trees, _______ the earth will become worse and worse.

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