题目内容
A ： Where did you go for your vacation?
B： 76.
A: Hainan? 77.
B： Yes,it is. But I don’t mind the hot weather because 78.____
A： Sounds great. 79.
B ： For about two weeks—from June 28th to July 11th. How about you? Where have you been?
A： I’ve been to Shanghai.
B ： Why?
A: Because，you know,the World Expo(世博会）was held in Shanghai.
B ： 80. It was a good chance to know about the future life.
A: That’s true.
76.1 went to Hainan. / Hainan.
77. It was very hot.
78.I enjoyed swimming and surfing. / I enjoyed delicious fruits there. / I had a good time.
79. How long did you stay there?
80. Sounds exciting ！
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eat call other cut down create protect pollute use prevent harm |
Every time you turn on the television or take a ride in a car,you could be adding to a problem 66 acid rain. In this article，you’ll learn how acid is created，and how it affects us，and more importantly,what we all can do 67 it.
How is acid rain created?
When people use fuels (燃料），such as coal and gasoline,poisonous gases are given off. When these gases mix with rain,acid rain forms. Many power stations burn fuels in order 68 the electricity (电)that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they bum gasoline. When rain mixes with these gases,69 things called acids form. This is acid rain.
How does acid rain affect us?
Acid rain damages everything that it touches. It poisons our rivers,ponds,lakes,and oceans along with all the
life in them. It 70 our soil and crops,harms trees,and can even kill fish and plants. Acid rain also 71 away
at buildings.
How can we prevent acid rain?
We need 72 on the pollution that gets into our air. Turn off lights,televisions,and 73 electrical appliances if you are not 74 them,and walk or take a bike whenever possible. If you are travelling a long distance,take a bus or train to save fuel.
As research shows,acid rain harms our environment. But people everywhere can take small steps now to help 75 our environment for future generations.
66. 67. 68. 69. 70.
71. 72. 73. 74._ _75.