题目内容

阅读理解

Human Cloning Is Wrong

  I’m sure many of you have seen Star Wars, Jurassic Park, Multiplicity, or many of the other movies that describe cloning.Most of what you see in these movies is false.What you don’t know is that cloning could be dangerous, to the clone and to our society as a whole.It’s immoral to have a human clone.

  What about identity?Humans are promised the right to their own personality.What would happen if we ignore those rights by giving them someone else’s genetic identity?True, personality is not fixed in someone’s genes, but the clone would share any physical appearance or genetic fault of the cloned.

  Also, there is a large power struggle here.Cloning means a degree of power and control over another person’s physical identity and that ignores their rights and their only personality.The person doing the cloning would have more power than any parent would have.

  Cloning would also deal with killing embryos(胚胎).You might not have known, but Dolly, the sheep that was cloned in 1996, was one of over 200 sheep embryos and hers was the only embryo that survived.The rest died or were thrown away.Imagine if the failure rate was that high when we started to clone humans.More than 200 embryos, the start of 200 human beings, would die for the sake of just one embryo that would have the same DNA as someone else.

  Cloning someone, at this present time, would be extremely dangerous to the birth mother and the clone.In studies done on cows, 4 out of 12 birth mothers died.There is a very high failure rate, which is showed in the cloning of Dolly.Even if you had a few good embryos, failures have been noticeable in animal tests.

  So, should we work ahead in the world of cloning?I say no.The risks are greater than the benefits.It’s dangerous to the clone and to the birth mother.We would be killing human lives in the process.It would also be a violation(侵害) of the clone’s right to its own genetic identity and personality.

(1)

The author thinks human cloning is wrong mainly for ________ reasons.

[  ]

A.

2

B.

3

C.

4

D.

5

(2)

According to the article, what is the author’s opinion about identity?

[  ]

A.

Cloning itself gives parents great power over identity.

B.

People’s identity is completely determined by their genes.

C.

Government have the rights to confirm people’s identities.

D.

Cloning may prevent people from possessing their identity.

(3)

From Paragraph 4 we can infer that ________.

[  ]

A.

human cloning is much more difficult than animal cloning.

B.

Dolly is the most successful one among 200 sheep embryos.

C.

cloning means running the risk of wasting too much effort

D.

numbers of baby animals are likely to be created by cloning

(4)

Why does the author mention some movies in the first paragraph?

[  ]

A.

To introduce the topic of the article.

B.

To present his idea about the movies.

C.

To state the conclusion first.

D.

To make the article unusual.

答案:1.C;2.D;3.C;4.A;
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阅读理解

Human Cloning Is Wrong

  I’m sure many of you have seen Star Wars, Jurassic Park, Multiplicity, or many of the other movies that describe cloning.Most of what you see in these movies is false.What you don’t know is that cloning could be dangerous, to the clone and to our society as a whole.It’s immoral to have a human clone.

  What about identity?Humans are promised the right to their own personality.What would happen if we ignore those rights by giving them someone else’s genetic identity?True, personality is not fixed in someone’s genes, but the clone would share any physical appearance or genetic fault of the cloned.

  Also, there is a large power struggle here.Cloning means a degree of power and control over another person’s physical identity and that ignores their rights and their only personality.The person doing the cloning would have more power than any parent would have.

  Cloning would also deal with killing embryos(胚胎).You might not have known, but Dolly, the sheep that was cloned in 1996, was one of over 200 sheep embryos and hers was the only embryo that survived.The rest died or were thrown away.Imagine if the failure rate was that high when we started to clone humans.More than 200 embryos, the start of 200 human beings, would die for the sake of just one embryo that would have the same DNA as someone else.

  Cloning someone, at this present time, would be extremely dangerous to the birth mother and the clone.In studies done on cows, 4 out of 12 birth mothers died.There is a very high failure rate, which is showed in the cloning of Dolly.Even if you had a few good embryos, failures have been noticeable in animal tests.

  So, should we work ahead in the world of cloning?I say no.The risks are greater than the benefits.It’s dangerous to the clone and to the birth mother.We would be killing human lives in the process.It would also be a violation(侵害)of the clone’s right to its own genetic identity and personality.

(1)

The author thinks human cloning is wrong mainly for ________ reasons.

[  ]

A.

2

B.

3

C.

4

D.

5

(2)

According to the article, what is the author’s opinion about identity?

[  ]

A.

Cloning itself gives parents great power over identity.

B.

People’s identity is completely determined by their genes.

C.

Government have the rights to confirm people’s identities.

D.

Cloning may prevent people from possessing their identity.

(3)

From Paragraph 4 we can infer that ________.

[  ]

A.

human cloning is much more difficult than animal cloning

B.

Dolly is the most successful one among 200 sheep embryos

C.

cloning means running the risk of wasting too much effort

D.

numbers of baby animals are likely to be created by cloning

(4)

Why does the author mention some movies in the first paragraph?

[  ]

A.

To introduce the topic of the article.

B.

To present his idea about the movies.

C.

To state the conclusion first.

D.

To make the article unusual.

第二部分   阅读理解

(共25小题。第一节每小题2分,第二节每小题1分;满分45分)

第一节   阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。

D

When people lose legs after accidents or illnesses, emergency care and artificial limbs(假肢)often allow them to walk again. Newts (蝾螈) in the same situation, on the other hand, can grow limbs back on their own! Scientists have known for a long time that certain animals can re–grow limbs, but they haven’t quite figured out how these creatures do it.

  Researchers have now come up with some new ideas. Their work may give people the ability to re – grow lost limbs. The researchers started with two simple experiments:when you cut a newt’s leg at the ankle, only the foot grows back;when you cut off a leg at the very end, the whole leg grows back. In both cases, the re–growth begins with stem cells. Stem cells can develop into nearly any type of cell in the body.

How do a newt’s stem cells know when to grow only a foot and when to re–grow a whole leg?

This question relates to another mystery. In newts, a cut–off leg will grow back only if the nerve bundle(神经束)in it also grows back , but if something prevents the nerve bundle from growing, the stem cells at the wound won’t re–grow a new leg.

In its study, a British team focused on a protein called nAG. When the team prevented nerves in a limb from growing, but added the nAG protein to stem cells in the limb, the limb still re–grew. That protein seems to guide limb re–growth. People have proteins that are similar to nAG. Further research into these materials may someday help human limbs recover by themselves.

In the experiments, the researchers cut off a newt’s foot or leg to find out _____.

 A. what stem cells were                  B. whether they would grow back

 C. how long it would take to re–grow    D. how they would re – grow

A newt will re–grow its leg if _____.

 A. its ankle was cut off but the nerve bundle was good

 B. its leg was cut off and the nerve bundle stopped growing

C. its leg was cut off and the nerve bundle could grow back

D. its ankle and the nerve bundle were cut off

What do the underlined words “these materials” refer to?

A. Nerve bundles and proteins.            B. Proteins similar to nAG.

 C. Stem cells and proteins.              D. Stem cells and nerve bundles.

The first sentence of the passage _____.

 A. acts as a lead–in                  

B. shows where researchers got their new ideas

C. states the author’s opinion          

D. describes the result of researchers’ studies

 

第三部分  阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的四个选项A、B、C和D中,选出最佳选项。

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, or when we are exhausted and “red-eyes” from over work 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 human. We know that animals also experience emotion--fear, pleasure, loneliness, but they do not shed (流) tears.

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.

1. According to the passage, human beings may have originated in

A. the sea         B. the salt              C. chemicals            D. animals

2. Which of the following is NOT a function of tears?

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

3 According to the article, which of the following is unique to humans?

A. The feeling of loneliness.                 B. The state of feeling good.

C. The ability to shed tears.                D. The feeling of fear.

4. The underlined word "eliminate" probably means

A. add             B. produce              C. replace               D. remove

 

 

第三部分:阅读理解(共20小题;每小题2分,满分40分)

                                       A

    The desire to make exploration is born with man. Wherever his imagination goes, man also has a strong wish to go. A large part of human history is connected with the exploration of the world in which we live. Again and angina people have set out with surprising courage and patience to look into unknown regions and lands to see what had not yet been seen, to make known the unknown. With kites, balloons and aircraft they left the ground to pass through the lower atmosphere. Now the outer space receives their attention.

    Why should man take the trouble of conquering space? It is hard to list the specific practical benefits that will result in. But one knows, form past experience in other areas, that man will surely see and discover new thing s in space that will increase or scientific knowledge, and this new knowledge will find its way into valuable practical uses. What we learn about man himself, from his experience in space, and from the effects of space and the space flight environment on him, will be extremely valuable. The new techniques developed to carry out the exploration of space, and to keep man alive in space, will certainly find practical uses in everyday life in some way. The areas that will benefit are manifold. They include communication, generation of power, transportation and travel, food production, materials, fuels and many others. But to say definitely just what the practical results will be is almost impossible.

56. The main idea of the first paragraph is that        .

    A. man desire to explore what is unknown

    B. man often goes wherever his dreams to go

    C. man is no longer interested in the study of the land and sea now

    D. man’s history is his exploration of the world

57. The underlined word “manifold” in the second paragraph probably means        .

    A. vast           B. various        C. valuable       D. practical

58. The author seems to be in favor of        .

    A. doubting the necessity of the space exploration

    B. the exploration of space

    C. exploring more in space than in sea

    D. his experience in space

59. The underlined phrase “practical results” refers to the results        .

    A. that are obtained from experience

    B. that can be learned as knowledge

    C. that can be made use of

    D. helping us make further exploration

 

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