阅读理解:  阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项。

It is difficult for doctors to help a person with a damaged brain Without enough blood, the brain lives for only three to five minutes More often the doctors can’t fix the damage Sometimes they are afraid to try something to help because it is dangerous to work on the brain The doctors might make the person worse if he operates on the brain

Dr. Robert White, a famous professor and doctor, thinks he knows a way to help He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.

Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys’ blood back to the monkeys’ brains. When the brain’s temperature was 10℃, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them.

1. The biggest difficulty in operating on the damaged brain is that_____.

A. the time is too short for doctors     

B. the patients are often too nervous

C. the damage is extremely hard to fix

D. the blood-cooling machine might break down w*w

2. The brain operation was made possible mainly by        .

A. taking the blood out of the brain         B. trying the operation on monkeys first

C. having the blood go through a machine      D. lowering the brain’s temperature

3. With Dr. White’s new idea, the operation on the damaged brain        .

A. can last as long as 30 minutes    B. can keep the brain’s blood warm

C. can keep the patient’s brain healthy  D. can help monkeys do different jobs

4. What is the right order of the steps in the operations?

A. send the cooled back to the brain       B. stop the blood to the brain

C. have the blood cooled down        D. operate on the brain

A. a, b, c, d       B. c, a, b, d       C. c, b, d, a       D. b, c, d, a

5. Which of the following is not true?

A. If there isn’t enough blood, the brain can live for only three to five minutes.

B. If the brain is very cold, it can live without blood for half an hour.

C. Dr. White tried his idea for thirteen times.

D. After their operations, the monkeys were healthy and busy again

Directions: Read the following text and choose the most suitable heading from A-F for each paragraph．There is one extra heading which you do not need.

Say sorry to your wife---it may help her live longer, according to scientists.

“Sorry” may be the hardest word, but scientists say it could be one of the healthiest. Researchers have discovered that women who receive an apology for hurtful behavior suffer less stress and possible damage to their heart than those who don’t.

It is said that the heartbeat of a wronged woman returns to normal 20 percent quicker after a well-timed “sorry” than without it. But for men, their heartbeat takes longer to recover, according to the research.

The research was undertaken by American scientists using 29 men and 59  women whose diastolic blood pressure was measured throughout an experiment. Diastolic blood pressure

is a measure of pressure in the blood vessels( 血管 ) between heartbeats---if it is continuously high it can increase the chances of heart attacks.

The men and women were asked to undertake a difficult mathematical task. They were told they had five minutes to complete it but were disturbed after a minute and told rudely to carry out the task more quickly. They were disturbed twice more before five minutes had passed and told to speed up. Finally they were told, “ You’re obviously not good enough.” Two minutes later researchers said sorry to half of the men and women.

The researchers found that, on average, the women’s diastolic blood pressure dropped back to normal 20 percent---quicker if they received an apology from the researchers, while the men’s took 20 percent longer to return to normal. One of the researchers said, “Results indicates that the effects of apology and forgiveness on women are greater.”

1.The term “sorry” is considered as one of the healthiest words because it _________.

2.We can know from Paragraph 3 _________.

3.Which of the following is the RIGHT time order for events in the study?

a. Half of them received apologies.

b. They were disturbed a minute later.

c. They were told that they weren’t good enough.

d. They were asked to finish a math task in five minutes.

e. They were disturbed two more times during the study.

4.The research confirmed (证实) that _________.

The oil resources which are left will not last very long. This means that all vehicles such as cars, trains, buses, planes and ships that need oil to work will not be able to run. So it will be necessary to develop a new system of transport which uses a fuel more than oil. Electric vehicles are one possibility. In Britain, most families have at least one car and this car is used every day. It could be that only one person in the family drives the car to work or for shopping. The number of cars on the road which are almost empty perhaps helps to explain why the oil is used up so quickly. The family car is a very useful form of transport but it is also a great waste of energy, especially if it is compared with buses or trains. Much petrol is used by a car which is traveling at 120 kilometers an hour. Clearly, it would be better if there were fewer cars on the road and more speed limits so that the oil which is left will last as long as possible.

About 25% of Britain’s total consumption of energy is domestic—it is used only in the home. Just over 20% is used for transport. Most of the energy is used in industry. It is difficult to suggest any possible energy conservation in industry because many of the suggestions would mean that some people would lose their jobs. It is important that industry produces the same amount of products using the same amount of workers.

Obviously, conservation is not going to be the answer to the energy crisis（危机）. The most it can do is to give more time for a better solution to be found. The more time which is available for new sources of energy to be developed, the better it is because there is still a lot of work to be done in order to find suitable, safe methods of producing energy.

1.In Britain, what reason could help to explain why oil is used up very quickly?

A．People use cars every day.

B．Most families have at least one car.

C．Many cars on the road are almost empty.

D．Electric vehicles are used.

2.Which of the following is true?

A．Compared with buses and trains, the family car is useful and can save energy.

B．A car driving at the speed of 80 kilometers per hour uses half as much petrol as a car traveling at 160 kilometers per hour.

C．It is possible for people to develop vehicles.

D．Limitation of the number of cars on the road and their speed will help the oil last longer.

3.What does the underlined word “domestic” mean in Paragraph Two?

A．For household use.                      B．On the road.

C．Slow driving.                           D．Fast driving.

4.What is a better way to solve the problem of the energy crisis?

A．Governments should cut down the number of family cars on the road.

B．The speed of vehicles must be limited.

C．New sources of energy should be found and developed.

D．Factories should cut down on production.

________ for the free tickets, I would not have gone to see the films so often.

1. A.
   If it is not
2. B.
   Were it not
3. C.
   Had it not been
4. D.
   If they were not