All of us eat every day, but most of us don't understand nutrition. We often make mistakes in talking about good diet.

　　For example, many people think that foods, such as rice, bread and potatoes, will make one grow fat. In fact, those foods are very good to one's health. They are good sources of many vitamins. And in comparison with steak（肉排）and beef, they contain less amount of calories.

　　Some people don't like canned or frozen vegetables, because they think fresh vegetables cooked at home are always better. This is again wrong. In fact, whether the vegetables are good or not depends more on how they are prepared. Overcooking, for example, destroys many good qualities. Vegetables cooked in too much water can lose a large amount of vitamins.

　　It is widely believed that extra vitamins provide more energy. But taking more than the body needs doesn't make it function, better.

　　It is also wrong to say that vegetables grown in poor, worn-out soil are lower in vitamins than vegetables grown in rich soil. The vitamins in our foods are in the plants themselves. However the minerals in a plant depend on the minerals in the soil.

　　In short, there are many false ideas about nutrition. We need to correct them.

(1) This passage is mainly about ________.

[　　]

(2) Rice, bread and potatoes do good to people's health because ________.

[　　]

A．they make people fat

B．there are a lot of vitamins in them

C．they contain less amount of calories compared with steak and beef

D．both B and C

(3) Why don't some people like canned or frozen vegetables? Because ________.

[　　]

A．they think fresh vegetables contain less vitamins

B．they think fresh vegetables contain more vitamins than the canned or frozen ones

C．they don't think the canned or frozen vegetables are fresh

D．they don't think the canned or frozen vegetables taste as good as the fresh ones

(4) Which of the following is true according to the passage？

[　　]

A．Many people know almost everything about nutrition.

B．Food, such as rice, bread and potatoes, makes people fat.

C．Vegetables grown in poor, worn-out soil may have the same amount of vitamins as vegetables grown in rich soil.

D．Extra vitamins provide less energy.

(5) The point of the passage is that ________.

[　　]

A．the minerals in a plant depend on the minerals in the soil

B．people make mistakes when talking about good diet

C．taking more vitamins than the body needs doesn't make it function better

D．vegetables cooked in too much water can lose a large amount of vitamins

Every scientist has a childhood dream. A scientist in China once had a(n)   36  . He wished to grow a new type of rice which could produce a lot. This person is Yuan Longping   37   was born in 1930. He graduated from the Southwest Agricultural(农业) University in 1953. Yuan Longping came up with an idea for a hybrid rice in the 1960s. Since then, he has devoted himself to the research and development of new varieties(品种).

In 1973, together with other people, he   38   in the development of hybrid rice. This made China be a worldwide leader in rice production. For this, he was called Father of Hybrid Rice. In 1980, the technology for hybrid rice was   39   to the United States.   40   Professor Yuan’s hard work, China now produces enough rice to   41   her people every year.

In his spare time, he loves playing   42   violin and listening to music. Every night, he reads   43   half an hour before he goes to sleep. He likes swimming, too.

It is said that Professor Yuan is one of the   44   people in China. And he cares about   45 

but his research.

Now Professor Yuan is working on developing super hybrid rice. He goes to the fields twice a day.

1.A.dream             B. idea              C. thought           D. meaning

2.A.where             B. whom              C. which                                          D. who

3.A.success           B. succeeded         C. successfully      D. successful

4.A.given             B. grown             C. showed            D. introduced

5.A.Because of        B. Thanks for        C. Instead of        D. According to

6.A. offer            B. feed              C. send              D. provide

7.A.an                B./                  C. a                 D. the

8.A.on                B. in                C. for               D. to

9.A.poorest           B. richest           C. cleverest         D. most careful

10.A.everything B .anything C. nothing  D. something

   People all over the world eat rice.  1  people, in Asia, Africa and South America  2  it every day of their lives. Some people almost do not eat  3  except rice. Rice is a kind of  4 . There are more than 7000 kinds of rice. Most kinds are water plants. Farmers  5  rice in many countries even in the southern part of Russia and in eastern Australia. No one really knows where rice  6 . Someone in China wrote about it almost 5000 years ago. Some scientists think that rice  7  in West Africa,  8  think it  9  from India and then  10  to other parts of the world.

(  ) 1. A. Thousand of             B. Hundreds of           C. Millions of              D. A million of

(  ) 2. A. eat                            B. eats                        C. eaten                            D. is eaten

(  ) 3. A. everything                B. something                      C. anything                 D. nothing

(  ) 4. A. grass                 B. fruit                        C. flower                    D. vegetable

(  ) 5. A. make                 B. run                         C. keep                             D. grow

(  ) 6. A. came from         B. came to                  C. went from                     D. went to

(  ) 7. A. grew                  B. grow                             C. is grown                 D. was grown

(  ) 8. A. another                     B. other                             C. the other                D. others

(  ) 9. A. came                 B. come                            C. was come                     D. was coming

(  )10. A. was planted             B. was taken                     C. was kept                D. was grown