题目内容

In 1942, Stephen William Hawking was born in Oxford, England. His parents’ house wasn’t in Oxford. It was in the north of London. But at that time, people thought Oxford was a safer place to have babies because of the Second World War. Stephen’s father was a good doctor. His mother didn’t work.

In 1950, when Hawking was eight years old, his family moved to St. Albans, a town about 20 miles north of London. At eleven, Stephen went to St. Albans School, and then went to Oxford University. There he wanted to study maths, but there wasn’t maths course(课程) in the university. So he studied physics(物理).

In 1988, Stephen’s greatest work A Brief History of Time was published(出版). And people all over the world began to know the greatest physics scientist—Stephen William Hawking.

When he studied math and science at Oxford University, he became unable to speak or breathe(呼吸) without the help of machines. Till now, he can’t move or feed himself. However, he has a wheelchair(轮椅) with a special computer, with it, he can communicate(沟通) with others.

March.14th this year, his death made the world sad. From Stephen Hawking’s unusual experience, we learn that nobody should lose hope.

1.Where was Stephen William Hawking born ?

A. In London. B. In St. Albans. C. In Oxford. D. In Cambridge.

2.When did Hawking move to St. Albans?

A. On March 14th. B. In 1942. C. In 1988. D. When he was eight.

3.What did he study in Oxford University?

A. Physic. B. Maths. C. History. D. Art.

4.Which of the following(下列) is NOT TRUE?

A. Hawking’s father was a doctor.

B. Albans is in the north of London.

C. A Brief History of Time was published in 1950.

D. He became badly ill when he was at the university.

5.What can we learn from Hawking?

A. It’s safe to live in Oxford.

B. Physics is difficult to study.

C. Everyone should never lose hope.

D. People need computers when they are not healthy.

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When we exercise hard, we burn fat. But have you ever wondered where exactly the fat goes?

Some doctors think that fat is changed into heat and given off in the air. Others think the body burns it. Some even joke that someone comes and takes it. That’s why you always weigh less in the morning.

Now a new study from Australia solves the mystery(迷). “The correct answer is that most of the fat is breathed (呼吸)out as CO2. It goes into the air.” says the study.

Scientists followed the atoms (原子) in 10 kilograms of fat as they are lost. They found that 8.4 of those kilograms are breathed out as CO2 through the lungs (肺). The other weight, 1.6 kilograms,becomes water and leaves the body.

“None of this is easy to understand because we can’t see the CO2 we breathe out.” said the study’s lead expert.

Does that mean you can lose more weight by breathing more? It is not as easy as you think.

Breathing more than the body’s metabolic rate (新陈代谢速度) can make you uncomfortable. You may feel dizzy(眩晕的) and become unable to see, move or feel, according to the study.

So how can people lose weight healthily? The key is to eat less and move more. You may have heard this many times. During a day, a 70kg person breathes out about 200g of CO2. So if the same person wants to lose weight, he or she can do some light exercise, for example, walking fast.This can help lose 240g of CO2.

1.Where is the new study from?

A. Japan. B. Australia. C. Canada. D. America.

2.According to the new study, where does our fat go when we exercise a lot?

A. The body burns it. B. Someone comes and takes it.

C. It is changed into heat and given off in the air. D. Most of it is breathed out as CO2.

3.What will happen to people if they breathe more than the body’s metabolic rate?

A. They will lose weight healthily. B. They will feel comfortable.

C. They may become unable to move. D. They may become healthier.

4.Which of the following is the best way to lose weight?

A. Sitting still and breathing more.

B. Sleeping a lot and breathing more.

C. Eating less and exercising more.

D. Eating more and doing some light exercise.

5.The passage mainly tells us ______.

A. where fat goes when we exercise B. why we can lose weight healthily

C. how we should do some exercise D. what we should do to become fat

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