题型：阅读选择 题类：常考题 难易度：普通
初中英语牛津译林版七年级下册Unit 1 Dream homes单元测试
The earth is about 4,600 million years old. Modern man has lived on the earth for only 35,000 years, but during that time, we have changed our planet in many ways. Many of the things that we have done are good, but more are not good for the earth.
Water pollution
A lot of people, birds and fish die each day because of water pollution. Factories have polluted the land and the water. As a result, many river and lakes are now dead.
Air pollution
In big cities, factories, as well as cars, trucks and buses are the biggest cause of air pollution. Many people in cities now have bad health problems. For example, Mexico city used to be a beautiful sunny capital, but today it is almost covered by thick brown clouds.
Soil pollution
In order to have a good harvest, most of the farmers use chemicals too much on their fields. That's bad for the soil. But this kind of pollution is difficult to stop.
Hope for the future
These problems are very serious for our future, so all of us should do something to improve our environment. If we can stop pollution, our planet will become more and more beautiful and our health will be better. Let's be greener people.
The night sky is our earliest library. There，we stored our knowledge，and passed it down around the fire
{#blank#}1{#/blank#} That night，I saw Saturn，one of the planets，and you were a part of it.{#blank#}2{#/blank#}
Although starlight is good，light pollution on Earth can be a real problem. For the past 200 years or so，we have used too much electricity to make the night brighter.{#blank#}3{#/blank#}When a lot of light shines up into the sky，some problems may appear.
Luckily，some cities have taken action，like setting up new downward﹣directing lights along the streets or controlling unnecessary lighting.{#blank#}4{#/blank#} I hope we can watch the night sky in a way humans have watched for thousands of years.
A. That moment is unforgettable. B. Light pollution has become a serious problem. C. However，brighter doesn't usually mean better. D. I hope more cities will join in and continue the practice. E. I remember going to the local university for an astronomy night. |
along build nature so that proper |
March 22nd is World Water Day. Water is the root(根) in Chinese culture. It {#blank#}1{#/blank#} the Chinese civilization(文明).
Chinese civilization is one of the world's ancient river civilizations. It began thousands of years ago {#blank#}2{#/blank#} the Yellow and Yangtze rivers, linking the culture to water from its beginning.
However, the way has two sides. Water is highly necessary for life and growing things, but if you don't use it {#blank#}3{#/blank#}, it will cause big problems. Knowing this, Chinese people have always tried to use it in the best way. Yu, the first ruler of Xia Dynasty, controlled floods by changing and digging the waterways {#blank#}4{#/blank#} the water could easily go into the sea. The Dujiangyan irrigation system(灌溉系统) in Sichuan was also a good example of making full use of the {#blank#}5{#/blank#} to protect the environment of the area.
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