In the United States, 30 percent of the people have a “weight problem”. To many people the cause is obvious (明显的): they eat too much. But scientific evidence (证据) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they at e more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.

Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗条的) people.

Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:

The more the man ran, the greater loss of the body fat.

The more they ran, the greater increase in food intake.

Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.

1.Nowadays many Americans have the problem that ______.

2.According to the passage, how many people in 900 Americans have a “weight problem”?

3.Is there any scientific evidence to support the idea that eating too much is the cause of a “weight problem”?

4.The Americans in 1910 ________.

Even a child knows that nodding the head means “Yes”. But some people will probably be puzzled when they first come to India. When they talk to an Indian, he often shakes his head. They might think that the Indian does not like what he said, but on the contrary he is expressing agreement.

The Indians have a habit of shaking their heads slightly when they talk to somebody. It doesn’t mean “No”, but “Yes”.

If a person doesn’t know this, it might cause misunderstanding.

At one time a foreigner in Indian told his driver who was an Indian to take him to his office. The driver shook his head. The foreigner repeated his request and the driver shook his head again. At last, the foreigner shouted angrily, “Drive me to my office at once!” The driver said in a low voice, “Yes, sir,” smiling and shaking his head again at the same time.

1.Generally speaking, nodding the head means _______, and shaking the head means _______.

2.Why did the Indian driver shake his head when the foreigner asked him to drive him to his office? Because _________.

3.Why did the foreigner become angry? Because _______.

4.The underlined phrase “on the contrary” means ________.

I was said to be the worst student in my class, and my family thought I was hopeless. I had to 16  grade six. at that time a new teacher, Miss Sadia, came to our school.

One day after class, she 17  that I was staying alone during the lunch break. She came to me and began to talk to me. It was just a 18 conversation. After that day, she gave me particular 19 and it made me feel special(特别). I started to work hard because she gave me the feeling that 20   believed me , and my 21 started to improve(提高) in her subject.

Months later, she moved into a house near my 22 . We would walk home together after school. Her constant (不断的 ) support helped me, 23 in my studies, as I knew she would  24 __my grades both in her subject and the other subjects. I finally 25_ second in my class.

Then, after grade six, she started to slowly drift away（疏远） 26 _still kept a constant(不断的) check on me. By the time I was in grade seven, we 27 spoke, but by then I had become the 28 in my class. When I left my school, I was 29 with her, as she never answered the 30 when I called her.

Then I graduated and went to a good university. One fine day, our paths（路） 31 again. I met her at a wedding. I could not 32 asking her, "Why did you stop talking to me?"

"You are a clever boy. I wanted you to be a tree  33 on your own roots, not depending on (依靠)others. Now here you are and I feel 34 of you. You are your inspiration and do not need to 35  a shoulder," she said. I could not say anything, but I smiled. I'll always thank her .

13.A oldest       B. strongest   C. best         D. cleverest

I will not go to her birthday party ___________ I am invited.

 What a wonder! They have finished _______  half of the project in such a short time.

The film _________ a novel by Sinclair Lewis.

Today,_________ rapid transportation and communication , the whole world seems to be smaller.

 The government requested that all the people ___________ in any indoor public area.

Scientists study ___________ human brains work to make computer.

A girl on the bus begin to sing a pop song and soon all the other students _________.