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 (联邦政府) 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】

试题分析：这篇短文主要介绍的是地球变暖这个问题，文章中提到了导致地球变暖的原因，如燃烧化石燃料以及砍伐树木；还有因为地球变暖而导致的一些变化以及如何来制止这个问题。

1.细节理解题。根据短文的开头Scientists who study the climate are still arguing about how fast the earth is warming and how much it will warm, 可知，研究气候的科学家们一直在争论地球变暖的速度到底多快，以及它会变暖到什么程度。A和B两个问题都提到了，故选D。

2.词义猜测题。根据短文第二段划线短语所在的句子Trees soak up carbon dioxide, one of the greenhouse gases, from the air.可知，树可以吸收二氧化碳，这种空气中的温室气体。这里的soak up 的意思是吸收。故选A，take in 吸收；B选项的意思是成长；C选项是脱掉，起飞；D选项是建立。

3.细节理解题。短文中的第二段给出了地球变暖的原因，Scientists agree that the burning of fossil fuels (化石燃料) like oil and coal cause greenhouse gases，一是燃烧化石燃料会产生温室气体；二是Another cause is deforestation树木被砍伐。由此可知选C。

4.主旨大意题。这篇短文主要介绍的是地球变暖这个问题，文章中提到了导致地球变暖的原因，因为地球变暖而导致的一些变化以及如何来制止这个问题。故A、B、C三个选项都只是文章的一个方面，不全面。故选D，the global warming 地球变暖。

考点：科普类短文阅读。