A salty diet may increase the risk of stomach cancer 10 percent, South Korean researchers found in a study of more than 2 million people.A．atB．toC．byD．For 题目和参考答案——青夏教育精英家教网—

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23. A salty diet may increase the risk of stomach cancer ________ 10 percent, South Korean researchers found in a study of more than 2 million people.

A．at

B．to

C．by

D．For

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相关题目

Tears are nature's way of making us feel more comfortable. When our eyes are made uncomfortable by some small pieces of pollution, or when we are cutting onions(洋葱), or when we are exhausted and have "red -eyes" from overwork and late hours, tears form in our eyes to clean and refresh them.

Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.

And tears seem to be uniquely(唯独)human. We know that animals also experience emotions-fear, pleasure, lone-

liness-but they do not shed tears. From this, we can conclude that tears are closely related to the emotional and biological make-up of the human species.

Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland(腺) in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.

And it is clear that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge(合并) into one and make us even more "human" than we would otherwise be.

Which of the following is NOT a function of tears?

A. Biological. B. Emotional. C. Political. D. Chemical.

Which of the following is the best title of the passage?

A. Tears Are a Sign of Strong Emotion

B. Tears Make Us Feel More Comfortable

C. Tears Are Salty

D. Tears Have a Certain Biological Function

第二节完形填空（共20小题；每小题1.5分，满分30分）
　　阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
　　Columnist Dave Barry says this about his father:"My dad would try anything - carpentry(木匠活),electrical wiring,roofing and so on.From watching him,I learned a lesson that still 36 to my life today:no matter how difficult a task may seem, 37 you're not afraid to try it,you can do it."
　　I learned from my parents the value of "going for it"." 38 ventured(冒险),nothing lost" is the motto of too many of us.Many people are so afraid to 39 that they never venture beyond the familiar."Better to be safe than sorry",has 40 too many people in the cocoon(保护膜) of their 41 zones.
　　A delightful 42 tells that Col.Robert Johnson of Salem,New Jersey,announced that he would take a 43 risk.He let the town know that he would 44 a wolf peach on the steps of the country courthouse at noon on September 26,1820. "Why would he take such a chance?" asked the 45 people.
　　Scientists and doctors had long declared the wolf peach to be 46 .If the wolf peach was too ripe and warmed by the sun,they told him he would be exposing himself to brain fever.Should he somehow 47 the experience,the skin of the 48 would stick to the lining of his stomach(他的胃黏膜) and 49 cause cancer.
　　Nearly 2,000 people 50 the square to see Col.Johnson eat the "poisonous" peach - now known as the tomato.
　　Col.Johnson believed his 51 was small,but it must be take if the 52 about the peach were to be 53 .Who has accompished anything worthwhile 54 taking a risk?
　　Much like the tortoise it makes 55 only when it sticks its neck out.
　　36.A.refers         B.applies       C.tends          D.leads
　　37.A.if            B.since         C.although       D.unless
　　38.A.Anything      B.Something    C.Nothing        D.Everything
　　39.A.fail           B.win          C.succeed        D.leave
　　40.A.turned        B.trapped       C.forbidden      D.orced
　　41.A.comfortable    B.miserable     C.surprising     D.unimportant
　　42.A.novel         B.message      C.joke          D.story
　　43.A.private        B.public       C.secret        D.national
　　44.A.buy          B.sell          C.eat           D.cut
　　45.A.puzzled       B.disappointed   C.angry        D.happy
　　46.A.delicious       B.smelly        C.salty        D.poisonous
　　47.A.enjoy         B.survive         C.understand D.know
　　48.A.wolf         B.seed           C.peach      D.body
　　49.A.eventually     B.firstly          C.lately       D.hardly
　　50.A.reached      B.decorated         C.surrounded D.crowded
　　51.A.audience     B.risk            C.fruit        D.size
　　52.A.myths        B.ingredients    C.truths         D.prices
　　53.A.changed      B.adopted        C.removed      D.grasped
　　54.A.without      B.for            C.with         D.except
　　55.A.sense        B.trouble         C.room        D.progress

A salty diet may increase the risk of stomach cancer ________ 10 percent, South Korean researchers found in a study of more than 2 million people．

A．at B．to C．by D．for

What do you know about the sea? We know that it looks very pretty when the sun is shining on it. We also know that it can be very rough when there is a strong wind. What other things do we know about it?

The first thing to remember is that the sea is very big. When you look at the map of the world you will find there is more water than land. The sea covers three quarters of the world.

The sea is also very deep in some places. It is not deep everywhere. Some parts of the sea are very shallow. But in some places the depth of the sea is very great. There is one spot, near Japan, where the sea is nearly 11 kilometers deep! The highest mountain in the world is about 9 kilometers high. If that mountain were put into the sea at that place, there would he 2 kilometers of water above it ! What a deep place !

If you have swum in the sea, you know that it is salty. You can taste the salt. Rivers, which flow into the sea, carry salt from the land into the sea. Some parts of the sea are saltier than other parts. There is one sea, called the Dead Sea, which is very salty. It is so salty that swimmers cannot sink! Fish cannot live in the Dead Sea!

In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea. Others live deep down. There are also millions of tiny living things that float in the sea. These floating things are so small that it is hard to see them. Many fish live by eating these.

The sea can be very cold. Divers who go deep down in the sea know this. On the top the water may be warm. When the diver goes downwards, the sea becomes colder and colder. Another thing happens. When the diver goes deeper, the water above presses down on him. It squeezes him. Then the diver has to wear clothes made of metal. But he cannot go very deep. Some people who wanted to go very deep used a very strong diving ship! They went down to the deepest part of the sea in it. They went down to a depth of eleven kilometers !

1.When does the sea look beautiful?

A. When it is calm. B. When the weather is fine.

C. When there is a strong wind. D. When there is a storm.

2. How much of the earth’s surface does land cover?

A. 15%. B. 25%. C. 30%. D. 45%.

3.Why does the writer cite（引用） the sea somewhere near Japan?

A. To show that the sea in some places is very deep.

B. To show that the sea in some places is very shallow.

C. To show that its depth is 9 kilometers greater than the height of the highest mountain.

D. To show that its depth is 11 kilometers greater than the height

of the highest mountain.

4.Which of the following statements about the Dead Sea is NOT true?

A. Swimmers cannot sink. B. It is a safe place for swimmers.

C. It is extremely salty. D. Fish can be found in it.

第二节完形填空（共20小题；每小题1.5分，满分30分）

　　阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

　　Columnist Dave Barry says this about his father:"My dad would try anything - carpentry(木匠活),electrical wiring,roofing and so on.From watching him,I learned a lesson that still 36 to my life today:no matter how difficult a task may seem, 37 you're not afraid to try it,you can do it."

　　I learned from my parents the value of "going for it"." 38 ventured(冒险),nothing lost" is the motto of too many of us.Many people are so afraid to 39 that they never venture beyond the familiar."Better to be safe than sorry",has 40 too many people in the cocoon(保护膜) of their 41 zones.

　　A delightful 42 tells that Col.Robert Johnson of Salem,New Jersey,announced that he would take a 43 risk.He let the town know that he would 44 a wolf peach on the steps of the country courthouse at noon on September 26,1820. "Why would he take such a chance?" asked the 45 people.

　　Scientists and doctors had long declared the wolf peach to be 46 .If the wolf peach was too ripe and warmed by the sun,they told him he would be exposing himself to brain fever.Should he somehow 47 the experience,the skin of the 48 would stick to the lining of his stomach(他的胃黏膜) and 49 cause cancer.

　　Nearly 2,000 people 50 the square to see Col.Johnson eat the "poisonous" peach - now known as the tomato.

　　Col.Johnson believed his 51 was small,but it must be take if the 52 about the peach were to be 53 .Who has accompished anything worthwhile 54 taking a risk?

　　Much like the tortoise it makes 55 only when it sticks its neck out.

　　36.A.refers B.applies C.tends D.leads

　　37.A.if B.since C.although D.unless

　　38.A.Anything B.Something C.Nothing D.Everything

　　39.A.fail B.win C.succeed D.leave

　　40.A.turned B.trapped C.forbidden D.orced

　　41.A.comfortable B.miserable C.surprising D.unimportant

　　42.A.novel B.message C.joke D.story

　　43.A.private B.public C.secret D.national

　　44.A.buy B.sell C.eat D.cut

　　45.A.puzzled B.disappointed C.angry D.happy

　　46.A.delicious B.smelly C.salty D.poisonous

　　47.A.enjoy B.survive C.understand D.know

　　48.A.wolf B.seed C.peach D.body

　　49.A.eventually B.firstly C.lately D.hardly

　　50.A.reached B.decorated C.surrounded D.crowded

　　51.A.audience B.risk C.fruit D.size

　　52.A.myths B.ingredients C.truths D.prices

　　53.A.changed B.adopted C.removed D.grasped

　　54.A.without B.for C.with D.except

　　55.A.sense B.trouble C.room D.progress

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