2021年上半年剑桥KET考试阅读练习

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere, warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.

In the past hundred years, humans have begun destroying rainforests in search of three major resources: land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example, a lot of carbon dioxide (二氧化碳) in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.

There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’s wood supply.

Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than l% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.

1. Why can rainforests help to adjust the climate?

A. They reflect more heat into the atmosphere.

B. They bring about high rainfall throughout the world.

C. They rarely cause the temperature to drop lower than l6℃.

D. They reduce the effect of heat from the sun on the earth.

2. What does the word “this” underlined in the third paragraph refer to?

A. We will lose much more than we can gain.

B. Humans have begun destroying rainforests.

C. People have a strong desire for resources.

D. Much carbon dioxide comes from burning rainforests.

3. What can be inferred from the text ?

A. We can get enough resources without rainforests.

B. There is great medicine potential in rainforests.

C. We will grow fewer kinds of crops in the gained land.

D. The level of annual rainfall affects wind patterns.

4. What might be the best title for the text?

A. How to Save Rainforests

B. How to Protect Nature

C. Rainforests and the Environment

D. Rainforests and Medical Development

以上内容为“2021年上半年剑桥KET考试阅读练习”的相关内容，希望有助于大家。担心错过2021年报名时间您可以通过环球网校“ 免费预约短信提醒”获得温馨提醒。此外，环球网校小编还特地为大家准备了剑桥KET复习资料，如有需要请点击文章下方“免费下载>>>2021年KET/PET精华资料”下载学习。