Everyone knows that exercise is important. We all need to exercise. Doctors say it is good for us. It makes you strong and smart. If you exercise every day, you can get good grades in the exam and do homework well. There are many ways to exercise. You can walk, run, swim, skate, or play ball games. But remember: Exercise enough, but not too much. It's best to exercise thirty minutes each time. Many people go to special places to exercise. People call them 'fitness centres'. They have a lot of equipment there. The equipment will help exercise your arms, legs and other parts of your body. Exercise can be fun. Friends can exercise together at a fitness centre. Or, they can play sports together.

1.Which of the following isn't the result of exercise?

A. It can make us strong and smart. B. It can make us do work well

C. It can make us get good grades. D. It can make us heavy.

2.If you want to be healthy, you can't _______.

A. walk or skate B. run or swim

C. swim or play soccer D. watch TV all day

3.It's best to exercise_______ each time.

A. twenty minutes B. thirty minutes C. forty minutes D. fifty minutes

4.The underlined(画线的) word 'equipment' means_______ in Chinese.

A.器材B. 机器C. 武器D. 武装

5.Which of the following is not true?

A. Friends can exercise together. B. We should exercise too much

C. We all need to exercise D. Exercise can bring us fun

In China, water is used in many different ways. Farming takes 60 percent of China’s water use. Personal use, like drinking water, takes only 12 pencent. Fifty- three countries and regions (地方) in the world have water shortages. About one fifth of the world’s population was suffer(遭受) from water shortage.
Tips for saving water
Saving water is as easy as turning off a tap! Here are some simple things you can do at home.
² Turn off the water while you’re brushing your teeth.
² Take shorter showers. Can you get your showers down to three minutes?
² Fill a liter (升) plastic bottle with water and put it in your toilet tank. It will take up the same space as the water usually does, but in a year, it will keep 20,000 liters of water.
² When you wash dishes and clothes, don’t let the water run.
² Use the washing machine only when it’s full of clothes.
² 根据短文内容，填写下面表格。

Here are reports of three attacks (攻击). Three swimmers were attacked by sharks (鲨鱼) because they didn't obey (遵守) the safety rules for swimmers.

Report 1_: Colin was swimming with two friends very late at night. He was attacked by a shark and died.

Report 2_: Ann was a very good swimmer. She bought a new bright red swimming suit. She was swimming with some friends when a shark attacked her.

Report 3_: Jack was on holiday in Australia. He cut his foot on the beach. He went swimming the same day and got at­tacked.

阅读上面的材料，完成下列句子。(每空一词)

1.Colin was attacked by a shark and died because he was swimming with two friends very late at ________.

2.It’s not a good idea to wear a ________ red swimming suit like Ann, because sharks can see colours.

3.You mustn’t go swimming with an open _________.

4.If you see a shark, try to swim ________, with even strokes.

5.You can be _________ only if（只要） you obey the safety rules for swimmers.

1 

In China, water is used in many different ways. Farming takes 60 percent of China’s water use. Personal use, like drinking water, takes only 12 pencent. Fifty- three countries and regions (地方) in the world have water shortages. About one fifth of the world’s population was suffer(遭受) from water shortage.

Tips for saving water

Saving water is as easy as turning off a tap! Here are some simple things you can do at home.

²  Turn off the water while you’re brushing your teeth.

²  Take shorter showers. Can you get your showers down to three minutes?

²  Fill a liter (升) plastic bottle with water and put it in your toilet tank. It will take up the same space as the water usually does, but in a year, it will keep 20,000 liters of water.

²  When you wash dishes and clothes, don’t let the water run.

²  Use the washing machine only when it’s full of clothes.

²  根据短文内容，填写下面表格。