I have a lot of work ______ today.

[    ]

　　A. do   B. did   C. to do   D. done

Positive(积极的) people are usually happy. They often have a lot of friends. When they have a problem, they try to change the problem i【小题1】   a chance. They believe things always work out. But can positive thinking really make someone’s life better? Many scientists are studying positive thinking. They are finding out some very interesting information.
Your Health
The Mayo Clinic is a famous medical organization in the United States. It studies many things, including positive thinking. Their research proves that positive thinking has many advantages. First, positive thinking s   【小题2】   good health. Positive people don’t worry about the bad events in life, so they stay healthy. Positive people are a 【小题3】   likely to exercise and eat healthy foods. Because of this, they don’t usually get sick and don’t have many health problems.
At work
Dr.Michael is a professor in Germany. His research shows that positive people do well in jobs. There are several reasons for this. Positive people are creative. They don’t expect o【小题4】  to help them with problems. They solve problems themselves. And positive people don’t give up. They keep trying to learn new things.
Becoming Positive
In the past, scientists thought attitude n  【小题5】   changed. Now, many psychologists think people can become more positive. There are many different ways to change. Here are some examples. First, think about good events in your life. At the end of a day, ask, “What good things happened to me today?”Think about these things for a few minutes. Second, find interestinga 【小题6】  to do. Laugh at a funny movie or read a good book. Finally, always try new things. For example, you can talk to people you don’t know or shop in a different store. Do different things every day.
A Good Life
Life can be d 【小题7】 sometimes. Don’t give up or be negative. Take action. Think about the future and make a plan. You can learn to be positive.

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