题目内容

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Cell Phones: Hang Up or Keep Talking?

Millions of people are using cell phones today. In many places it is actually considered unusual not to use one. __1.__They find that the phones are more than a means of communication----having a mobile phone shows that they are cool and connected.

The explosions around the world in mobile phone use make some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. ___2.___

On the other hand, why do some medical studies show changes in the brain cells of some people who use mobile phones? Signs of change in the tissues of the brain and head can be detected with modern scanning(扫描)equipment. In one case, a traveling salesman had to retire at a young age because of serious memory loss. ___3.__He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

____4.__ The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often.___ 5.__Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

A. Use your regular phone if you want to talk for a long time.

B. They will possibly affect their benefits.

C. In many countries, cell phones are very popular with young people.

D. He couldn’t remember even simple tasks.

E. What do the doctors worry about?

F. They say that there is no proof that mobile phones are bad for your health.

G. What is it that makes mobile phones potentially harmful?

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阅读七选五

How to Improve Eyesight Naturally

Eyes are important for everybody. You must take care and try everything in hand to keep them in good condition. Here are some tips to improve your eyesight naturally.

1. Strain is known to be a factor in many health conditions and eye strain is no exception. Try meditation, yoga or other methods of stress relief to improve your vision and overall health.

Try palming.

Sit upright in a comfortable chair. 2. Cup your hands so that there is no pressure on your eyes. Let your fingers rest across your forehead. There should be no light entering your eyes. Palming should be done for a period of 5 to 10 minutes to start. Palming should be relaxing. It may help to do palming in a darkened room.

Avoid sugar as much as possible.

3. It will unpleasantly affect your eyesight, which affects the eyes by producing a larger amount of insulin (胰岛素) in the blood. Therefore you shouldn't be having much fruit juice or something that contains a lot of sugar.

Exercise your eyes.

The only exercise most eyes get is daily rubbing when we're tired or suffering from eye strain. But eye exercise is actually good for your eyes and can improve your vision. 4. Blink as fast as you can for a few seconds, then close your eyes tightly, open and repeat. Do this exercise 3 to 4 times daily.

Eat healthy foods.

You probably hear the statement all the time that eating the right foods is necessary for good health. 5.Foods that are high in fiber, vitamin C, D and beta?carotene as well as other vitamins and minerals can help improve your vision. Here are a few foods that can be beneficial to good vision: carrots, eggs, blueberries, spinach, kale, grapes, and fresh garlic.

A.Reduce eye strain.

B.Keep your eyes moist.

C.Sugar is your eyes' worst enemy.

D.Give your eyes a workout with the following exercise.

E.You may not be aware that your diet affects your vision, but it does.

F.Close your eyes and cover them with the palms of your hands.

G.Be sure to get plenty of sleep so that your eyes don't strain to stay open during the day.

阅读理解

The spread of Western eating habits around the world is bad for human health and the environment. These findings come from a new report in the journal Nature.

David Tilman, a professor of ecology at the University of Minnesota, America, examined information from 100 countries to identify what people ate and how a diet affected health. He noted a movement beginning in the 1960s. He found that as nations industrialized (工业化), population increased and earnings rose, more people began to adopt what has been called the Western diet.

The Western diet is high in sugar, fat, oil and meat. By eating these foods, people began to get fatter and sicker. David Tilman says overweight people are at greater risk of noninfectious diseases like diabetes (糖尿病) and heart disease.

Unfortunately when people become industrialized, if they adopt this Western diet, they are going to have these health problems, especially in developing countries in Asia. China is an example where the number of diabetes cases has been jumping from less than one percent to 10 percent of the population as they began to industrialize over a 20­year period. And that is happening all across the world, in Mexico, in Nigeria and so on.

And, a diet bad for human beings is also bad for the environment. As the world's population grows, more forests and tropical (热带的) areas will become farmlands for crops or grasslands for cattle. We are likely to have more greenhouse gas in the future from agriculture than that coming out of all forms of transportation right now.

Mr. Tilman calls the link between the diet, the environment and human health, “a trilemma” — a problem offering a difficult choice. He says one possible solution is leaving the Western diet behind.

1.According to the passage, more greenhouse gas might be given off in the future from ________.

A.transportation B.developing countries

C.agriculture D.developed countries

2.David Tilman believes that ________.

A.the diet, the environment and human health are closely connected

B.the Western diet is the only choice as the nation industrializes

C.people in tropical areas are more likely to have heart disease

D.traditional diets are more balanced than the Western diet

3.We can infer from the passage that ________.

A.Nigeria has the largest number of diabetes cases

B.overweight people are at higher risk of infectious diseases

C.the examined information comes from developing countries

D.industrialization contributes to the spread of the Western diet

4.The main purpose of the passage is to ________.

A.call on us to protect the environment

B.warn us of the danger of the Western diet

C.remind us of the importance of health

D.advise us to have a balanced diet

Admission

Reservations are not necessary to visit The Huntington. Tickets may be purchased at the time of your visit.

Weekdays

Weekends

Adults

$20

$23

Seniors ( age 65+ )

$15

$18

Students (age 12-18, or with full-time student I.D.)

$12

$13

Youth (age 5-11 )

$8

$8

Children (under 5)

free

free

Groups ( 15 or more )

$11 ( per person )

$14 ( per person )

Members

free

free

Free Day

Admission to The Huntington is free to all visitors on the first Thursday of every month with advance tickets. Hours on Free Day are 10:30 a.m. – 4:30 p. m. Please notice that Free Day tickets are not available at The Huntington, and can only be reserved by phone or online. You may not purchase regular admission tickets on Free Day.

Parking

Parking is free at The Huntington. And no parking reservations are necessary unless you are a school or tour group arriving by bus.

Bus Reservations for Groups

Groups arriving by bus must make reservations in advance by calling 626-405-2240. Please notice that all buses and tricks must use a specified (规定的) route for entering The Huntington from the north.

1.If next Saturday a 66-year-old man goes to the library with his three grandchildren, aged 4, 6, 14, how much should he pay?

A. $40 B. $35 C.$ 39 D. $44

2.To visit the library on free days, you_______.

A. must reserve a parking place

B. should reserve tickets in advance

C. have to buy admission tickets

D. get free tickets on arriving at the library

3.As for tour groups arriving at the library by bus, _______.

A. they have to pay for the parking space

B. they have to park their bus outside

C. they don’t need to make a reservation

D. they should call the library in advance

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