---Do you think there are______ new words in this unit ?
---Yes, that’s right. I’ll ______first.

Every time you turn on the television or take a ride in a car ,you could be adding to a problem called acid rain(酸雨). In this article, you’ll learn how acid is created, and how it affects us, and more importantly, what we all can do to prevent 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 to create 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 burn gasoline .When rain mixes with these gases, harmful things called acids form. This is acid rain.
How does acid rain affect us?
Acid rain damages(毁坏)everything that it touches. It poisons our rivers, ponds, lakes, and oceans along with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain also eats away at buildings.
How can we prevent acid rain?
We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical appliances if you are not using them, 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 protect our environment for future generations.
【小题1】When power stations burn fuel, _______.

这是某学校通过校长意见箱收集到一些学生的意见和建议。请阅读下文，根据所提供的内容，完成下列表格，把答案写在答题卡指定的位置上。

Information Card

This is not a diet. It's a simple way to lose weight~ And you don' t even have to give up the food you love or join a gym. You just follow some habits that thin people have. Keep them, and you'll become thin.

 ( 1 ) Wake - up

When you wake up in the morning, sit up slowly without using your hands. With legs straight out, bend( 弯曲) forward until you feel sore in your back. It will burn about 10 calories (热量单位，卡路里).

 (2) Start with soup

When you have a meal, order a clear soup, and have it before having the main food. In this way, you'll feel fuller, so you'll eat less when the main food comes.

 (3) An apple (or more) a day

Apples are full of fiber（纤维) and water, so your stomach will want less. The study shows that people who eat at least three, apples a day lose weight.

 (4) Stand up and walk around

Every time you use the mobile phone, stand up and walk around.  Heavy people sit on average(平均) two and a half hours more each day than thin people. This skill is very important as standing up and walking around will burn 50 or more calories.

Use these skills, and you will have a big weight loss.

1.What should we have first if we want to eat less main food?

A. Soup.                B. Ice cream.

C. Salad.               D. Cheese.

2.Why does eating apples make one's stomach want less food?

A. Because apples are delicious.

B. Because apples are full of fiber and water.

C. Because apples are sour.

D. Because only apples are filled with calories.

3.Which of the following may the author disagree?

A. Sitting up slowly without using your hands helps burn calories.

B. Eating apples every day is good for people's health.

C. You have to join a gym if you want to lose weight.

D. It' s good to walk around while talking on the mobile phone.

4.What's the purpose of the passage?

A. To give some advice on how to lose weight.

B. To advise people to eat apples every day.

C. To tell people how to enjoy a better life.

D. To advise people to give up bad habits.

5.In which part of a newspaper would you most probably read the passage?

A. Shopping.            B. Teaching.

C. Family.              D. Health.

Every time you turn on the television or take a ride in a car ,you could be adding to a problem called acid rain(酸雨). In this article, you’ll learn how acid is created, and how it affects us, and more importantly, what we all can do to prevent 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 to create 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 burn gasoline .When rain mixes with these gases, harmful things called acids form. This is acid rain.

How does acid rain affect us?

Acid rain damages(毁坏)everything that it touches. It poisons our rivers, ponds, lakes, and oceans along with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain also eats away at buildings.

How can we prevent acid rain?

We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical appliances if you are not using them, 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 protect our environment for future generations.

1.When power stations burn fuel, _______.

A．acid rain form                          B．air pollution is caused

C．noise pollution is caused                  D．acid rain gets heavier

2.What advice does the article give us?

A．Go to school on foot or by bike if we can.

B．Go to bed earlier in order to use less electricity.

C．Travel by bus to prevent acid rain.

D．Turn off the television on rainy days.

3.What is the best title of the article?

A．Preventing Acid Rain                     B．Forming of Acid Rain

C．Acid rain, Heavy Rain                     D．Acid Rain, Killer Rain