We all need to exercise．Doctors say it is good for us．It makes our heart and body strong．It also gives you more energy(能量)．And you will feel better about yourself．It’s good 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(健康中心)”．These places have a lot of equipments(设备)．People can do different sports there．Some people buy equipments for their homes．But it is very expensive．
Exercising can be fun．Friends can exercise together at a fitness center，or they can play sports together．How do you exercise? How often do you exercise?
【小题1】It’s good to exercise_______．

    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 about 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 equip- merit(设备，器材)．Some people buy equipment for their homes．But it is very expensive．

    Exercising can be fun．Friends can exercise together at a fitness center．Or，they can play  sports together．How do you exercise?

1．What is the main idea?

   A．Exercise equipment is expensive．

   B．Playing sports is a good way to exercise．

      C．Every person should exercise．

      D．How to buy sports equipment

2．We should exercise         ．

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

3．At fitness centers，        ．

   A．you can buy expensive equipment

   B．people can do many kinds of exercising

   C．it is very expensive

   D．only young people can play

4．Which of these kinds of exercising is not in the article?

   A．Dancing．      B．Swimming．         C．Sports．   D．Walk

5．Which of these sentences about exercising is true?   

   A．Exercising is expensive．

   B．Exercise is good for your heart．

   C．Only doctors exercise．

   D．Exercise makes people tired all day．

　　Some people say laughter is the best medicine. Scientists are beginning to agree with this. They are studying laughter seriously and finding it is really good for us.

　　So what happens when we laugh? We use fifteen different muscles(肌肉) in our face, and laughing is good for every organ(器官) in our body. When we laugh, we breathe quickly and exercise the face, shoulders and chest. Our blood pressure(压力) goes down, and our circulation(血液循环) gets better. Our heart beat gets slower and our brain makes a natural painkiller(止痛药).

　　Every minute we laugh is the same as forty-five minutes of relaxation①. Many doctors around the world believe that laughter helps us get better when we are sick.②

　　Of course, there are many kinds of laughter. We may change the way we laugh in different situations. But we all have a laugh that is special to us. How do you usually laugh?

根据短文内容完成下列各题

1．用学过的词解释①：

2．句意填词：

If a man stops laughing suddenly, his heart beat maybe gets _________________.

3．把②译成汉语：

4．According to the passage, which is right?

[　　]

A．People laugh in the same way.

B．One should learn different ways of laughing.

C．We need to laugh forty-five minutes each day.

D．Everyone has his own way of laughing.

5．用一句话描述本文的大意。

Everyone knows that exercise is important．We all need to exercise．Doctors say it is good for us．it makes your heart and body strong．Children who often exercise are more alert （灵活的）．This means they do better in tests and schoolwork than those who don't exercise．

    There are many ways to exercise．You can walk, run, swim, skate, or play ball games, Make sure you exercise in the following ways：you have to like what you're doing． Exercise enough but not too much．it's best to exercise twice each week ．Thirty minutes each time is enough．Try all kinds of thing until you find one, two or even three sports that feel right for you．

You can exercise at fitness centers．They have a lot of equipment（设备）there. The equipment will help exercise your arms, legs and other parts of body to make you fit．Some people buy equipment for their homes．But it is very expensive．

Exercising can be fun．Friends can exercise together at a fitness center, or they can Play sports together．How do you exercise?

根据短文内容，选择最佳答案。

1．In the text，the writer tells us that we all need to _________．

       A．drink                     B．sleep                      C．exercise                 D．work

2．Which of the following sports is not in the text?

       A．Fishing                  B．Running                C．swimming            D．Walking

3．The words“fitness centers”in Chinese is___________．

    A．商务中心           B．健身中心              C．购物中心              D．医疗中心

4．The best way to exercise is do it __________．

A．once a week           B．sometimes              C．twice a month               D．twice a week

5．How long should we do exercise is do it ___________．

A．An hour            B．Half an hour             C．20 minutes            D．40 minutes