Every person has two sets(副)of teeth. The first set of twenty begins to grow when you are over Six months old. The second set of thirty-two grows from the age of six until you are about twenty-one ye 题目和参考答案——青夏教育精英家教网—

题目内容

Every person has two sets(副)of teeth. The first set of twenty begins to grow when you are over Six months old. The second set of thirty-two grows from the age of six until you are about twenty-one years old.

To help your teeth grow strong, you must drink plenty of milk and eat green Vegetables. Then your body Will have the right chemicals(化学物质)that build teeth.You should brush your teeth after each meal Then few bits of food willbe left on or between them to cause decay(腐烂).Make sure that you turn thebrush and go up and down as well as(和)brushing sideways(向侧面地).Usedental floss(清牙齿用的牙线)to make sure all food is removed(移走)fromin between each tooth. If you can not brush your teeth after eating, rinse(冲洗)them with water. or eat an apple or a carrot. Try to visit a dentist(牙医)every six months. If there is a hole in a tooth, he or she will fill it. If you do not have it filled, then the hole Will grow larger. When a hole grows too big, he tooth may have to be taken out. It is better to keep all your second set of teeth for as long as possible. Filling a gap(豁口)where a tooth has come out with a kind of bridge and using a false(假的)tooth cost a lot of money.

阅读短文,并根据短文内容将句子补充完整:

1. Your first twenty teeth begin to grow about________.

2. Two kinds of food that are good for your teeth; They are________.

3. As well as brushing teeth, you should use________.

4. You should visit a dentist every________.

5. How many sets of teeth does every person have?

答案：
解析：

1.six months old 2.milk and vegetables 3.some dental f1oss 4.six months 5.TWO sets

练习册系列答案

A．To help your teeth grow strong.

B．You should brush your teeth after each meal.

C．Carrots and apples are good for your teeth.

D．The tooth may have to be taken out.

E. Everyone should have a set of good teeth.
F. Try to visit a dentist every six months.
G. Every person has two set of teeth.

We all need to exercise. Doctors say it is good for us. It makes your heart and body strong. It also gives you more energy. And you will feel better yourself. It’s best to exercise twice a week. Twenty minutes each time is enough.
There are many ways to exercise. You can walk, run, play sports, or swim. Many people go to special places to exercise. They are called “fitness centers”. These places have a lot of equitment. Some people buy equitment for their homes. But it is very expensive.
Exercising can be fun. Friends can exercise together at fithess center. Or they can play sports together, how do you exercise?
【小题1】What is the main idea?

A．Exercise equitment is expensive.	B．Playing sports is a good way to exercise.
C．Every person should exercise.	D．Fitness centers are popular.

【小题2】We should exercise ________.

A．every day	B．20 minutes a week.
C．twice a week	D．two times a month

【小题3】 At fitness cemters,________.

A．you can buy expensive equitment	B．people can do many kinds of exercise
C．it is very expensive	D．exercising is not fun

【小题4】Which of these kinds of exercise is not mentioned（提及）in the article?

【小题5】Which of these sentences about exercising is true?

A．Exercising is expensive.	B．Exercising good for heart.
C．Only doctors exercise.	D．Friends never exercise together.

Dear editor,

I live in a beautiful city. Many visitors come to my city every year because there are so many colorful peacocks (孔雀) here.

The peacocks mostly live on the grassland of Dongfeng Square. Visitors usually throw food to them, but they don’t think about at all whether the food is good or not. Some of the peacocks became ill, and some even died, eating the bad food given by visitors.

I’m sure most of the visitors who throw food to the peacocks really like the bird, but they don’t realize that they may be doing them harm. Visitors should be told that what they have done is harmful to the birds, and this kind of thing must be stopped.

Perhaps we can build some small shops beside Dongfeng Square to sell peacock food. For us every person, it is our duty to give more love to these beautiful birds to look after them carefully.

Yours,

Wang Yang

1.The letter will be sent to ________________.

A. a school B. a hospital C. a newspaper D. a museum

2.Many visitors come to the writer’s city every year to ______________.

A. give peacocks food B. see peacocks

C. do some shopping D. look after peacocks

3.Some peacocks became ill and died because __________________.

A. they weren’t given any food B. they were given too much food

C. they were given some bad food D. they weren’t given enough food

信息归纳

请阅读下面一篇有关生活中的困难的文章，根据所提供的信息，完成下列表格。

Life is full of difficulties, from birth to death. When we face with problems, we often feel, “I am the only one having such problems.” Or, we exaggerate (放大) our problems and regard them as most painful. But if we look around us, we find other people may be in much worse conditions.

Life is not always full of smiles and flowers. Every person has his own difficulties no matter who and where he is. So it's very important to have a correct attitude in your life. Only with the correct attitude can you face up all of your difficulties and finally overcome (战胜) them. First, you have to believe in yourself. That's the secret of success. Second, don't blame others when you have difficulties, because it can neither help you avoid difficulties nor help you solve them. And the most important thing is that don't run away or give up. Use your ability to clear the difficulties that appear in your life. Third, remember how you overcome the difficulty because it may help you avoid similar trouble next time. Just take it easy, enjoy the life even it's full of difficulties.

Information Card

Sometimes other people may be	in 1.________________.
What's the secret of success？	2._______________.
What can you use to clear the difficulties in your life？	3.____________.
Why should you remember how you overcome the difficulty？	To4.___________ next time.
How many suggestions does the passage give to treat the difficulties in life？	5.___________.

Ask three people to look out the same window at a busy street corner and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene（场景）, but each perceives（察觉）something different about it.

　　 Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket（罚单）. Another may say that he sees a rush-hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow（拉着）. For perception（感知） is the mind’s interpretation of what the senses—in this case our eyes—tell us.

　　 Many psychologists（心理学家） today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.

1.Perceiving is an action that takes place _____.

A．in our eyes

B．only when we think very hard about something

C．only under the direction of a psychologist

D．in every person’s mind

2.People perceive different things about the same scene because ____.

A．they see different things.

B．they can not agree about things

C．some have better eyesight

D．none of these

3.Psychologists study perception by _____.

A．setting up many experiments.

B．asking each other what they see.

C．looking out of windows.

D．Studying people’s eyes.

4.The best title for this article is _____.

A．How We See

B．Learning About Our Minds Through Science

C．What Psychologists Perceive

D．How To Become An Experimental Psychologist

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