Teeth are important. Strong, healthy teeth help you chew foods that help you grow. They help you speak clearly. And, they help you look your best. Here are some advice for you to take care of your teeth.

  ● Brush your teeth the right way.

Brush your teeth at least twice a day after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks（快餐）, too.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

Brush all your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Brush away from your gums（齿龈）, too.

Spend at least three minutes each time you brush. Play a song you like to help pass the time.

Get a new toothbrush every three months. When you buy your tooth brush, be sure it has soft bristles（鬃毛）.

● Learn how to floss your teeth.

Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush cannot get to, like the space between the teeth. Flossing can help get rid of it. Carefully move the floss between two teeth, up and down. You need to floss your teeth at least once a day.

● Have good eating habits.

You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay（腐朽）. Eating sugar before you go to bed can make things even worse. Eat lots of fruit and vegetables and drink water instead of soda.

1.            is helpful to your teeth.

A. Eating fruit and vegetables       B. Eating sweet snacks      

C. Eating sugar                    D. Drinking soda

2. Which is the right way of brushing the teeth?

A. We should brush our teeth once a day.         

B. We should keep our toothbrush away from our gums.

C. When we brush our teeth, at least three minutes is needed.

D. Brush our teeth before breakfast.

3. From the passage, do you know how to floss the teeth?

A. Go to see a dentist.               B. Fix a floss on the teeth.

C. Move the floss between two teeth.   D. Chew the floss in the mouth.

4.Which of the following is NOT true ?

A. Flossing can help get ride of the food that hides between two teeth.

B. Healthy teeth can help you look more beautiful.

C. We don’t have to brush our teeth if we eat a lot of fruit and vegetables.

D. Your toothbrush should be changed every three months.

5. The best title for the passage is          .

A. How to floss your teeth.            

B. How to have good eating habits.

C. How to brush your teeth.            

D. How to take care of your teeth.

 

 

A smile will tell people around you that you are a kind and friendly person. However,many people don’t smile because they think they ugly teeth. For example, one of my classmates, Mile, doesn’t have very nice teeth,so thatis why he seldom opens his mouth.he even says that he has lost cofidence because of his teeth.So it is very important for us to look after our teeth. In fact, a lot of people have this problem.Some people inherit teeth problems from their parents,while others’teeth are damaged because of bad habits,like heavy smoking,eating too much sugar or not brush-ing teeth often.If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of then.
Smiling can help you to feel more confident and make other people think of you as a more friendly person. If you want to keep healthy,you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 300 times a day, wile adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now!
根据短文内容，选出一个最佳答案填入题前括号内。
【小题1】What has made Mike lose his confidence?

A．His bad habit.

B．His bad teeth.

C．Not smiling.

D．Eating too much sugar.

【小题2】 Many people don’t smile because    .

A．they don’t like smiling	B．they think they are ugly
C．their teeth are not beautiful	D．they can’t open their mouths

【小题3】 What can a dentist do according to the passage?
A. A dentist can tell you how to improve your bad teeth.
B. A dentist can help you to take care of your bad teeth.
C. A dentist can tell you how to brush your teeth.
D. Both A and B.
【小题4】If you want to keep healthy, you had better    .

A．not smile often	B．laugh all the time
C．neiter smile nor laugh	D．smile and even laugh often

【小题5】 How many times should a child laugh every day in doctor Kataria’s opinion?

A．Either 300 or 30 times a day.	B．Between 7 and 15 times a day.
C．Around 300 times a day.	D．Only 30 times a day.

Passage 3
A smile will tell people around you that you are a kind and friendly person. However, many people don’t smile because they think they have ugly teeth. For example, one of my classmates, Mike, doesn’t have very nice teeth, so that is why he seldom opens his mouth. He even says that he has lost confidence because of his teeth. So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents, while others’ teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brushing teeth often. If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of them.
Smiling can help you to feel more confidence and make people think of you as a more friendly person. If you want to keep healthy, you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 30 times a day, while adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now.
【小题1】What has made Mike lose his confidence?

A．His bad habit

B．His bad teeth

C．Not smiling

D．Eating too much sugar

【小题2】Many people don’t smile because ______

A．they don’t like smiling	B．they think they are ugly
C．their teeth are not beautiful	D．they can’t open their mouths

【小题3】What can a dentist do according to the passage?

A．A dentist can tell you how to improve your bad teeth.

B．A dentist can help you to take care of your bad teeth.

C．A dentist can tell you how to brush your teeth.

D．Both A and B

【小题4】 If you want to keep healthy, you had better _____

A．not smile often	B．laugh all the time
C．neither smile nor laugh	D．smile and even laugh often

【小题5】How many times should a child laugh every day in doctor Kataria’s opinion

A．Either 20 or 30 times a day	B．Between 7 and 15 times a day
C．Around 30 times a day	D．Only 30 times a day

Teeth are important. Strong, healthy teeth help you chew foods that help you grow. They help you speak clearly. And, they help you look your best. Here are some advice for you to take care of your teeth.
● Brush your teeth the right way.
Brush your teeth at least twice a day after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks（快餐）, too.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
Brush all your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Brush away from your gums（齿龈）, too.
Spend at least three minutes each time you brush. Play a song you like to help pass the time.
Get a new toothbrush every three months. When you buy your tooth brush, be sure it has soft bristles（鬃毛）.
● Learn how to floss your teeth.
Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush cannot get to, like the space between the teeth. Flossing can help get rid of it. Carefully move the floss between two teeth, up and down. You need to floss your teeth at least once a day.
● Have good eating habits.
You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay（腐朽）. Eating sugar before you go to bed can make things even worse. Eat lots of fruit and vegetables and drink water instead of soda.
【小题1】           is helpful to your teeth.

A．Eating fruit and vegetables	B．Eating sweet snacks
C．Eating sugar	D．Drinking soda

【小题2】 Which is the right way of brushing the teeth?

A．We should brush our teeth once a day.

B．We should keep our toothbrush away from our gums.

C．When we brush our teeth, at least three minutes is needed.

D．Brush our teeth before breakfast.

【小题3】 From the passage, do you know how to floss the teeth?

A．Go to see a dentist.	B．Fix a floss on the teeth.
C．Move the floss between two teeth.	D．Chew the floss in the mouth.

【小题4】Which of the following is NOT true ?

A．Flossing can help get ride of the food that hides between two teeth.

B．Healthy teeth can help you look more beautiful.

C．We don’t have to brush our teeth if we eat a lot of fruit and vegetables.

D．Your toothbrush should be changed every three months.

【小题5】 The best title for the passage is          .

A．How to floss your teeth.

B．How to have good eating habits.

C．How to brush your teeth.

D．How to take care of your teeth.

Napoga is a 12-year-old girl in Ghana(加纳)，Africa. It is hard for her family to get clean water. Every morning，she leaves home at half past five to get clean water for her family in a village far away. It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga. They can't get enough clean water to keep healthy.
Earth Day is April 22. But on all other days，we must also remember it. The water we use is the most important natural resource(自然资源) on the earth.
Water covers 70% of the earth's surface. But most of that is sea water. We can't use it for very many things. Fresh water covers only 1% of the earth's surface.
You probably feel lucky that your life isn't as hard as Napoga's. But that doesn't mean you don't have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars，factories，farms and homes make our rivers，lakes，and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish，too. Now, 34% of all kinds of fish are dying out.
How do cars and factories make our water dirty？First，they pollute the air. Then，when it rains，the rain water comes down and makes our drinking water dirty. Dirty rain，called acid rain(酸雨)，is also bad for plants，animals and buildings.
Scientists say that in 30 years，more than half of the people in the world won't have enough clean water. We have to learn how to save more water for ourselves and our children. Here is some advice for saving water：
●Turn off the water while you brush your teeth. You can save as much as 450 liters(升) each month.
●Leaky taps(漏水的龙头) waste a lot of water. Fix them right away！
●You can easily cut your 10-minute showers in half----and you'll be just as clean.
●When you wash dishes，don't let the water run.
●Only wash clothes when you have a lot to wash. If your washing machine isn't full，you're  wasting water！
【小题1】On the earth，_______.

A．sea water is more widely(广泛地) used than fresh water

B．there is very little water for our living

C．there is 71% of fresh water

D．we don't need to worry about water

【小题2】Acid rain _______.

A．is only bad for living things

B．can be produced in factories

C．doesn't do harm(伤害) to people，but it's bad for plants，animals and buildings

D．doesn't just do harm to human beings but to animals，plants and buildings

【小题3】Which of the following wastes water？

A．We need ten minutes if we want a clean shower.

B．We should put in enough clothes when we wash them in washing machines.

C．You can keep yourself clean by having a shower for five minutes.

D．Don't let the water run when we brush our teeth and wash dishes.

【小题4】What's the main idea of the passage？

A．Something must be done to prevent water from being polluted.

B．Clean water means much to human beings and living things around us.

C．It's time to take care of the water we use.

D．Water is the most important natural resource on the earth.