Question

Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, but they do agree that the earth is warming and that it will keep warming if we don’t do anything about it.

Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases to escape into the air and that these gases are causing most of the warming. Another cause is deforestation (cutting down trees) . Trees soak up carbon dioxide, one of the greenhouse gases, from the air.

There are already some changes happening because of global warming. Sea level is rising and some animals are already moving to new homes. It’s already too late to stop global warming completely.

If the warming gets worse, as scientists expect, there may be some kinds of plants and animals that is disappearing because they can’t move to new homes. There may be more storms and floods. Sea level may rise so much that people have to move away from the coasts. Some areas may become too dry for farming.

Global warming is a very difficult problem to fix. People are having a hard time agreeing on what to do about it. For example, everyone agrees that wasting energy is a bad thing to do. But some people think that the federal government (聯(lián)邦政府) should make laws about it, while other people think it should be up to each person or business to decide what to do.

Many states and businesses in the United States are not waiting until the federal government decides what to do. They have already started working on the problem.

1.What are the scientists arguing about in the passage?

A. How fast is the earth warming?

B. How much will the earth warm?

C. The earth will keep warming if we don’t do anything about it.

D. Both A and B.

2.What does the underlined phrase “soak up” mean?

A. take in B. grow up C. take off D. set up

3.What may be the causes of global warming?

A. The disappearance of plants and animals and the wasting energy.

B. The burning of fossil fuels and storms and floods.

C. The burning of fossil fuels and deforestation.

D. The rising of sea level and deforestation.

4.What is the best title of this passage?

A. The reason for global warming B. How to stop global warming

C. The changes to the worldD. The global warming

 

Answer 1

1.D

2.A

3.C

4.D

【解析】

試題分析：這篇短文主要介紹的是地球變暖這個問題，文章中提到了導(dǎo)致地球變暖的原因，如燃燒化石燃料以及砍伐樹木；還有因為地球變暖而導(dǎo)致的一些變化以及如何來制止這個問題。

1.細節(jié)理解題。根據(jù)短文的開頭Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, 可知，研究氣候的科學(xué)家們一直在爭論地球變暖的速度到底多快，以及它會變暖到什么程度。A和B兩個問題都提到了，故選D。

2.詞義猜測題。根據(jù)短文第二段劃線短語所在的句子Trees soak up carbon dioxide, one of the greenhouse gases, from the air.可知，樹可以吸收二氧化碳，這種空氣中的溫室氣體。這里的soak up 的意思是吸收。故選A，take in 吸收；B選項的意思是成長；C選項是脫掉，起飛；D選項是建立。

3.細節(jié)理解題。短文中的第二段給出了地球變暖的原因，Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases，一是燃燒化石燃料會產(chǎn)生溫室氣體；二是Another cause is deforestation樹木被砍伐。由此可知選C。

4.主旨大意題。這篇短文主要介紹的是地球變暖這個問題，文章中提到了導(dǎo)致地球變暖的原因，因為地球變暖而導(dǎo)致的一些變化以及如何來制止這個問題。故A、B、C三個選項都只是文章的一個方面，不全面。故選D，the global warming 地球變暖。

考點：科普類短文閱讀。