When you cut your skin, you bleed(流血). If a person loses a lot of blood, he will become ill and may die. Blood is very important. People have always known that. At one time, some people even drank blood to make them strong!

When doctors understand how blood goes around inside the body, they try ways of giving blood to people who need it. They take blood from the healthy people and give it to people who need it. This is called " blood transfusion（输血）". The blood goes from the arm of the healthy person into the arm of the sick person.

But there are two problems. First, it does not always work. Sometimes people die when they have blood transfusion. Later, doctors find that we do not all have the same kind of blood. There are four groups—O, A, B and AB. We all have blood of one of these groups. They also find that they can give any kind of blood to people of group AB. But they find that they must give A-group blood to A-group people and B-group blood to B-group people. I have O-group blood and the doctor told me that I could give blood to anyone else safely.

There is another problem. To give blood of the right kind, doctors have to find a person of the right blood group. Often they can not find a person in time. If they have a way to keep the blood until someone needs it, they can always have the right kind of blood. At first they find they can keep it in bottles for fifteen to twenty days. They do this by making it very cold. Then they find how to keep it longer. In the end they find a way of keeping blood for a very long time.

We call a place where we keep money a "bank". We call a place where we keep blood a "blood bank". One day, when you grow up, you may decide to give blood to a "blood bank". In this way you may stop someone from dying. Or perhaps one day you may become ill. You may need blood. The "blood bank" will give it to you.

1.From the passage, we learn that sometimes people die when they have blood transfusions because they __________ .

A. are given the cold blood???????????? B. lose too much blood

C. are given the wrong kind of blood????? D. are O-group people

2.Which of the following is true? ________

A. We can drink blood to make us strong.

B. Blood transfusion is always safe.

C. The writer has O-group blood and can give blood to anyone.

D. The blood can only be kept for 15to 20 days.

3.People set up the "blood bank" so that they can _____________ .

A. give the right kind of blood to the people who need it in time

B. keep different groups of blood as much as possible

C. make it easier to sell or buy blood

D. keep blood for more than twenty hundred years

4.From the last paragraph (段落) of the passage, we learn that _____________ .

A. the writer thinks it's good to give blood to a "blood bank"

B. we may become ill if we give blood to a "blood bank"

C. there are many blood banks in the world today.

D. blood is more important than money

5.The writer doesn't talk about ____________ in the passage.

A. how important blood is to us ????????????? ????????????? ????????????? B. the four groups of blood

C. where the blood bank is ????????????? ????????????? ????????????? ????????????? D. what "blood transfusion" is

1.Li Lei feels worried because ______________.

2.Li Lei writes this letter to ______________.

3.In Mr. Wise’s letter, “Tomorrow is another day” means “____________”.

If you go to a fast food restaurant, you will probably see a lot of teenagers. Today, many teenagers are overweight, and this is because of their bad eating habits. Most teenagers are fond of food with a lot of fat, oil, salt and sugar. People call this kind of food “junk food”.

But bad eating habits go beyond fast food. We find many teenagers eat unhealthily. Some don’t have breakfast before they go to school. During the day, some don’t have a proper meal for lunch. In a recent survey at one school, scientists found that over two thirds of the students didn’t follow a healthy diet. They didn’t like vegetables, and many of them didn’t like to eat fruits. They preferred to eat food with a lot of salt, sugar, or fat.

Parents today also worry about their children’s diet. Some doctors give the following advice:

Teenagers shouldn’t eat too much junk food.

Teenagers shouldn’t eat food with too much salt. Salt can cause high blood pressure in the future.

Teenagers should eat food without much fat, oil and sugar.

Teenagers need to eat some fruits and vegetables every day. Fruits and vegetables are rich in vitamins（维生素）and have little fat.

Teenagers need to drink more milk. Milk will help their bones grow.

Teenagers need to eat breakfast every day. It is good for their body and mind.

1.How many pieces of advice are given by the doctors in the passage?

A．Five              B．Eight             C．Six               D．Seven

2. Which of the following is RIGHT?

A．Today all teenagers are overweight.

B．Scientists found two thirds of the students didn’t have a healthy diet.

C．Parents are worried about their children’s diet today.

D．Milk, fruits and vegetables are not good for children.

3. It’s right to ___________ according to the passage.

A．eat junk food                          B．eat food with too much salt

C．drink milk and eat junk food often           D．eat vegetables that are rich in vitamins

4.The main purpose of the passage is to tell the children____________.

A．how to keep a healthy diet                B．to eat fruits and vegetables

C．how to have a proper meal for lunch         D．not to eat junk food

Look into the mirror and what do you see? You see yourself. But when you move. you do everything backward(相反地)in the mirror! If you wave your left hand, your right hand waves in the mirror. If you wink your right eye, your left eye, your left eye winks(眨). Try to read a page in the mirror .The words will be backwards.

What is really happening? You do not see through the glass of a mirror as you do through a window. The glass of a mirror has a silver coating on the back. The light from the sun or a bulb bounces (弹回)off you ,goes into the mirror ,and bounces straight back out to you again.

Mirrors have been used for thousands of years. The earliest were round pieces of shiny metal. Glass mirrors came late. The ancients thought that a mirror was magic. They did not understand how it worked. They thought they saw their spirits in a mirror and breaking a mirror brought bad luck.

Today mirrors have many uses .For example, they can make rooms look bigger and prettier. They also show us if our hair is combed(梳理) well and our faces are clean. On cars, buses and trucks, mirrors help drivers see traffic behind them. Mirrors are also used in telescopes(望远镜)and searchlights(探照灯).

Fun houses use mirrors. They make people look funny. Some mirrors are curved to make people seem short and round or tall and tin They make people laugh at themselves.

1.If you wave your right hand, you can see your         In the mirror.

A. left hand down     B. left hand wave

C. right hand wave    D. right hand up

2.Mirrors        .

A. appeared a long time ago

B. were made of glass at first

C. made of metal are popular today

D. had many uses in ancient times

3.Mirrors were magic in the past because       .

A. people thought they could see their spirits in mirrors

B. they were used in magic shows

C. they could make people change their heights and weights

D. they could make people laugh

4.What does the word “curved” mean in Chinese?

A.雕刻       B.油漆      C.扭转       D.弯曲

 It was Saturday yesterday. When Mrs Black       the door and looked         , she smiled and said, "It's going to         a beautiful day." She woke her small son up at eight thirty and said to him, "Get up, Tod. We are going to the zoo        . Wash your hands and face, brush your teeth and eat your breakfast quickly.   Tod was six years old. He was very happy        he liked going to the zoo very much. He said, "I dreamed I was         the zoo last night, Mummy."

    His mother was       , but she stopped and smiled at       , "       did you do in the zoo in your dream?" Tod laughed and answered, "You know, Mummy. You       in my dream, too."

1.A. opens      B. is opening            C. open          D. opened

2.A. out         B. in                          C. at                D. for

3.A. do                     B. have                    C. be      D. make

4.A. yesterday           B. tomorrow           C. today          D. last week

5.A. when      B. because    C. so      D. why

6.A. with        B. about                   C. for    D. in

7.A. free       B. happy                  C. good           D. busy

8.A. her coat  B. her husband         C. her son        D. the bed

9.A. What      B. Where                C. How            D. Why

10.A. are there         B. were there         C. are here       D. were here