相關(guān)習(xí)題
 0  20517  20525  20531  20535  20541  20543  20547  20553  20555  20561  20567  20571  20573  20577  20583  20585  20591  20595  20597  20601  20603  20607  20609  20611  20612  20613  20615  20616  20617  20619  20621  20625  20627  20631  20633  20637  20643  20645  20651  20655  20657  20661  20667  20673  20675  20681  20685  20687  20693  20697  20703  20711  151629 

科目: 來源: 題型:閱讀理解

D

       Recently there was a major discovery in the scientific research—the mapping of all DNA in a human gene(基因) is complete.Couple of years ago, this seems an impossible task for scientist to accomplish.All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away.Human cloning has always been a topic of argument, in terms of morality or religion.

       Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning.If the clone was free of genetic limitations.then the other clone would be as well.The latter could foe inserted in the woman and allowed to ripen to term.Moreover, cloning would enable women, who can't get pregnant, to have children of their own.

       Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs.This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single (or more) organ (s).It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists.

       Arguments against cloning are also on a perfectly practical side.Primarily, I believe that cloning would step in the normal "cycle" of life.There would be a large number of same genes, which reduce the chances of improvement, and, in turn, development—the fundamental reason how living things naturally adapt to the ever-changing environment.Life processes failing to do so might result in untimely disappearance.Furthermore, cloning would make the uniqueness that each one of us possesses disappear.Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as "objects" rather than people in the society.

       Scientists haven't 100 per cent.guaranteed that the first cloned humans will be normal.Thus this could result in introduction of additional limitations in the human "gene-pool".

       Regarding such arguable topics in "black or white" approach seems very innocent to me personally.We should rather try to look at all "shades" of it.I believe that cloning is only legal if its purpose is for cloning organs; not humans.Then we could regard this as for "saving life" instead of "creating life".I believe cloning humans is morally and socially unacceptable.

67.Which of the following is true according to the passage?

       A.Genetic limitation will be beneficial for some women.

       B.A large number of genes will prevent us from developing.         

       C.Prohibition of cloning might limit the freedom of scientists.

       D.First cloned humans might be normal according to scientists.

68.What's the author's opinion on cloning?

       A.Cloning should be entirely banned.

       B.Cloning should be used in creating life.

       C.Cloning will take away the right to reproduce.

       D.Cloning is acceptable if it is used for cloning organs.

69.Where can you read this article?

       A.In a story book.        

       B.In a magazine.

       C.In a science fiction.   

       D.In a brochure.

70.Which of the following shows the structure of the passage?

查看答案和解析>>

科目: 來源: 題型:

第二部分:知識(shí)運(yùn)用(共兩節(jié),45分)

第一節(jié):?jiǎn)雾?xiàng)填空(共15小題;每小題1分,共15分)

    從每題所給的A、B、c、D四個(gè)選項(xiàng)中,選出可以填入空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

It's so nice to hear from her again.______, we last met more than thirty years ago.

       A.What's more                     B.That's to say

       C.In other words                    D.Believe it or not

查看答案和解析>>

科目: 來源: 題型:

Now my hometown is not at all _______ a traveler who visited it ten years ago can expect.

   A. that              B. what                C. which                D. where

查看答案和解析>>

科目: 來源: 題型:

 It was the second time that I_______of the changes of the timetable .

A. have been informed            B. had been informed

C. have informed                D. had informed

查看答案和解析>>

科目: 來源: 題型:

He demanded that such things________from happening again.

A. prevented                 B. prevent          C. be prevented       D. were prevented   

查看答案和解析>>

科目: 來源: 題型:閱讀理解

E

Safety information for study abroad

Remember you are responsible for the choices you make regarding your safety! Be careful all the time. Not knowing about the culture, language, people and situations may put you at higher risk. Learn what women and men do in the culture to protect themselves.

☆ Avoid walking alone at night. Do not agree to meet a person whom you do not know in a lonely place. Be cautious when meeting new people. Don’t give out your address and phone number to strangers or let out too much personal information about yourself.

☆ Do not attract attention to yourself by speaking English loudly in public in America or wearing expensive jewelry. These manners will certainly attract thieves, or worse. Do not be afraid to be impolite when faced with unwanted situations. Do not let anyone push you into taking risks. If you feel unsafe, you probably are.

☆ Taxis are not safe everywhere, especially late at night. Men and women are often robbed by taxi drivers. In many cities, taxis have gotten so dangerous that people use Radio Taxis to get the names of good companies.

☆ When using public telephones, especially in a lonely place, stand facing out so you can see your surroundings. If someone stops you to ask for the time or to ask for directions, step away to a distance that is safer. Why would they consider asking an obviously foreign person for directions?

☆ Your life will always be more important than any of your possessions (財(cái)產(chǎn)). Let them go and run away if necessary.

57. For whom is the passage written?

A. Parents who worry about the safety of their children.

B. Foreign people who are traveling in the USA.

C. Those students who are studying abroad.   

D. People who are interested in foreign culture.

58. What does the underlined word “cautious” probably mean?

A. Friendly.     B. Careful.       C. Active.       D. Calm.

59. You are advised not to speak English loudly in public in America because _______.

A. others will laugh at your bad English  

B. it is bad manners to speak loudly in American culture

C. you will attract too much attention to yourself

D. other people will ask more information about yourself

60. What should you do to protect yourself while studying abroad?

A. Taking public transportation whenever you go out.

B. Not considering others’ feelings as long as you like.

C. Not offering help to anyone in the street. 

D. Having a high sense of safety at any time.

查看答案和解析>>

科目: 來源: 題型:

----Must I clean the window now?     

---- No, you _____.

A. mustn’t             B. needn’t             C. can’t                 D. may not

查看答案和解析>>

科目: 來源: 題型:

----Why does the lake smell terrible?

-----Because large quantities of water_______.

A. is being polluted                                   B.have been polluted

C. is polluted                                     D. has been polluted

查看答案和解析>>

科目: 來源: 題型:

We  will   have   a   holiday   on   Women’s   Day, ________, March 8th.

A. or rather                  B. that is             C. in general                D. such as

查看答案和解析>>

科目: 來源: 題型:

 _______ that all mountain roads were closed.

A. So the dangerous weather became

B. So dangerous did the weather become

C. So dangerous became the weather

D. The dangerous weather became so

查看答案和解析>>

同步練習(xí)冊(cè)答案