D Starting the day on an egg could keep your blood pressure under control, research suggests．Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressur 题目和参考答案——青夏教育精英家教网—

题目内容

Starting the day on an egg could keep your blood pressure(血压) under control, research suggests．Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressure-lowering drugs．

The research, from the University of Alberta in Canada, showed that when eggs come in contact with stomach enzymes(酶) they produce a protein that acts in the same way as Ace inhibitors, but more work is needed to show the effects outside a lab and in the human body．

Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to work on an egg．They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on increasing heart disease risks．

Researcher Professor Bruce Griffin, from the University of Surrey, said:“The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected ．The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs．The UK public do not need to be limiting the number of eggs they eat．They can be encouraged to include them in a healthy diet as they are one of nature’s most nutritious foods．”

The British Heart Foundation dropped its three-egg-a-week limit in 2005．However, almost half of Britons believe the limit still applies．

53．From the text we know that Ace inhibitors are______．

A．a kind of medicine B．a kind of protein

C．a kind of illness D．a kind of food

54．According to what Professor Brcue said, eggs______．

A．are the most nutritious food．

B．have no effect on blood cholesterol

C．can be included in a healthy diet

D．are forbidden to be eaten in the UK

55．We can infer from the text that______．

A．drugs to lower blood pressure will be replaced by eating eggs

B．stomach enzymes mixed with eggs can cure heart diseases

C．most Britons agree the three-egg-a-week limit should be dropped

D．about 50% of Britons think eating an egg a day is bad for their health

56．The text is meant______．

A．to introduce scientific findings about eggs

B．to introduce a medicine made from eggs

C．to tell people how to lower their blood pressure

D．to advise people to eat as many eggs as possible

53-56ACDA

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That gas pipeline project, _______in July 2007 and ________ in 2009, will be China’s longest gas pipeline in history.

A. starting; completing B. started; to be completed C. to start; completed D. starting; completed

That gas pipeline project, _____in July 2002 and__________in 2005, will be China’s longest gas pipeline in history.

A. starting; completing B. started; to be completed

C. to start; completed D. starting; completed

Many people believe Henry Ford invented the automobile (汽车). But Henry Ford did not start to build his first car until 1896. That was eleven years after two Germans developed the world's first automobile. Many people believe Henry Ford invented the production line that moved a car's parts to the worker, instead of making the worker move to the parts. That is not true, either. Many factory owners used methods of this kind before Ford. What Henry Ford did was to use other people's ideas and make them better. And he made the whole factory a moving production line.

In the early days of the automobile, almost every car maker raced his cars. It was the best way of gaining public notice. Henry Ford decided to build a racing car. Ford's most famous race was his first one. It was also the last race in which he drove the car himself.

The race was in 1901, at a field near Detroit. All of the most famous cars had entered, but only two were left: the Winton and Ford's. The Winton was famous for its speed. Most people thought the race was over before it began.

The Winton took an early lead. But halfway through the race, it began to lose power. Ford started to gain. And near the end of the race, he took the lead. Ford won the race and defeated the Winton. His name appeared in newspapers and he became well-known all over the United States. Within weeks of the race, Henry Ford formed a new automobile company. In the 1903, a doctor in Detroit bought the first car from the company. That sale was the beginning of Henry Ford's dream. Ford said: "I will build a motor car for the great mass of people. It will be large enough for the family, but small enough for one person to operate and care for. It will be built of the best materials. It will be built by the best men to be employed. And it will be built with the simplest plans that modem engineering can produce. It will be so low in price that no man making good money will be unable to own one."

The Model T was a car of that kind. It only cost $850. It was a simple machine that drivers could depend on. Doctors bought the Model T. So did farmers. Even criminals.They considered it the fastest and surest form of transportation. Americans loved the Model T. They wrote stories and songs about it. Thousands of Model T's were built in the first few years.

What do we know about Henry Ford from Paragraph 1?

A. He made good use of ideas from others.

B. He produced the first car in the world.

C. He knew how to improve auto parts.

D. He invented the production line.

Why did Henry Ford take part in the 1901 car race?

A. To show off his driving skills.

B. To draw public attention.

C. To learn about new technology.

D. To raise money for his new company.

“That sale” in Paragraph 4 refers to .

A. the selling of Ford cars at reduced prices

B. the sale of Model T to the mass of people

C. the selling of a car to a Detroit doctor

D. the sales target for the Ford Company

What was Henry Ford's dream according to the text?

A. Producing cars for average customers.

B. Building racing cars of simple design.

C. Designing more car models.

D. Starting more companies.

Having said good-bye to his parents, Alvin, with his wife and one-year-old son, set off back home. Still ____36__, Alvin and Clare talked and laughed happily. And even little Alax ___37__ from time to time. The family were ___38__ their trip.

But about three hours later things began to ___39__. It was starting to snow. Alvin ___40__ up the car, hoping to arrive home before dark. But it was too dangerous to drive fast now. Because it was snowing more and more heavily. So Alvin had to __41___down. The snow on the __42___ was getting deeper and deeper until it was hard to __43___on it. Their car slipped of the way and got ___44__in the deep snow and the engine refused to start again. “The snow doesn’t seem to __45___. Shall we stay in the car waiting to be frozen to death or walk ahead through the snow?” Alvin asked. Clare said she __46___to walk. So they got out of the car with their son and began walking. But __47__was to come. Soon they lost their way and had to walk ___48__on and on.

Night came. They were not afraid of the dark. But they __49___that poor Alax would die of cold. However, their faith to keep Alax __50___ filled them with courage, warmth and strength. They ___51__ and rested in turn and then continued their walk. They had ___52__falls but each time true love encouraged them to rise to their feet again.

One, two, three, … seven days passed. On the eighth day, help at last came from Alvin’s __53___, the police and local people. But the young __54___had to have their feet cut off because of the bad frostbites（冻伤）___55__, there was nothing serious wrong with little Alax!

1.	A. excited	B. sorry	C. worried	D. anxious
2.	A. cried	B. shouted	C. smiled	D. coughed
3.	A. taking	B. having	C. enjoying	D. starting
4.	A. take place	B. change	C. come	D. finish
5.	A. climbed	B. turned	C. took	D. sped
6.	A. get	B. slow	C. go	D. look
7.	A. land	B. highway	C. fields	D. car
8.	A. walk	B. depend	C. stay	D. wait
9.	A. stuck	B. moved	C. prepared	D. covered
10.	A. fall	B. end	C. continue	D. melt
11.	A. liked	B. preferred	C. decided	D. wished
12.	A. better	B. something	C. nothing	D. worse
13.	A. hopelessly	B. alone	C. aimlessly	D. pleasantly
14.	A. thought	B. feared	C. expected	D. were sure
15.	A. happy	B. silent	C. alive	D. dead
16.	A. slept	B. walked	C. watched	D. ate
17.	A. a few	B. several	C. terrible	D. countless
18.	A. friends	B. parents	C. neighbors	D. brothers
19.	A. husband	B. wife	C. couple	D. baby
20.	A. Therefore	B. Finally	C. Then	D. Fortunately

Twenty-five years ago if you made a trip to the local library and searched for articles on globing warming, you’d probably come up with a few from the leading magazines in the world. As an Internet search on global warming now shows, the subject has become as rooted in people’s mind as Madonna or microwave cooking.

With the possible exception of another world war, a giant planet, or an incurable disease, global warming may be the largest danger to our planet. For decades human factories and cars have sent billions of tons of greenhouse gases into the atmosphere, and the climate has begun to show some signs of warming. If steps are not taken soon to reduce the amount of carbon dioxide sent into the atmosphere, the result could terribly affect human life. We have already seen growing destruction, such as drought and death in Sudan, flooding in Asia, bush fires in Indonesia, and fierce winter storms in central Europe.

The Republic of Maldives is barely above sea level. Its 250, 000 citizens are scattered across 1,200 islands in the Indian Ocean. A strong typhoon could spell the end for the entire country, as sea levels could continue rising. The entire population would have to be moved away as the country disappears under the sea.

The greenhouse effect is a naturally occurring phenomenon that keeps our planet at a comfortable temperature averaging 60°F. Since the mid-nineteenth century, however, carbon dioxide in the atmosphere has increased nearly 30% because of the increased use of fossil fuels to run cars, heat homes and power factories. Without controlling, the amount of carbon-dioxide by 2100 may increase by 30%-150% and could lift the average global temperature by up to 2.5° F the next 50 years.

1..

With the first paragraph, the author intends to .

A. scold people for not paying enough attention to global warming

B. draw people’s attention to global warming

C. how to search for the articles on global warming

D. point out the serious effect of global warming

2..

Global warming could affect human life in the following ways EXCEPT .

A. producing more greenhouse gases B. causing more floods

C. making winter storms fiercer D. starting more bush fires

3..

The Republic of Maldives .

A. has moved away their citizens

B. will be more likely to be destroyed by a strong typhoon than by the rising sea level

C. is mostly likely to be destroyed by the rising sea level

D. will have to move away most of their population

4..

. Why is the Republic of Maldives especially mentioned in the passage?

A. Because smaller countries are easier to be affected by global warming.

B. Because seaside countries are in danger of disappearing.

C. Because it’s necessary to rescue a country before the sea level rises.

D. Because the serious result of global warming could end a whole country.

5..

. From the last paragraph, we can infer that greenhouse effect .

A. can only affect the earth in an unfavorable way

B. is something easy to control

C. is caused by human act

D. will be good to us if it remains at a proper level

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