More than two hundred years ago the United States _______ from the British Empire and became an independent country.

  A. broke down     B. broke out       C. broke away          D. broke off

The students seemed ____ , so I repeated the ______ question.

A. puzzled, puzzling,                 B .puzzling puzzled, 

C.puzzling puzzling                  D.puzzled, puzzled

Someday a stranger will read your e-mail without your permission or scan the Website you've visited，Or perhaps someone will casually glance through your credit card purchases or cell phone bills to find out your shopping preferences or calling habits.

In fact, it's likely that some of these things have already happened to you. Who would watch you without your permission? It might be a spouse, a girl friend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen ---- the 21st century replacement of being caught naked.

Psychologists tell us boundaries are healthy, that it's important to reveal yourself to friends, family and lovers in stages, at appropriate times. But few boundaries remain. The digital bread crumbs(碎屑) you leave everywhere make it easy for strangers to reconstruct who you are, where you are and what you like. In some cases, a simple Google search can reveal what you think. Like it or not, increasingly we live in a world where you simply cannot keep a secret.

The key question is: Does that matter?

For many Americans, the answer apparently is "no."

When opinion polls ask Americans about privacy, most say they are concerned about losing it. A survey found a strong bad feeling about privacy, with 60 percent of respondents saying they feel their privacy is "slipping away, and that bothers me."

But people say one thing and do another. Only a tiny part of Americans change any behaviors in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收费站) to avoid using the EZ-Pass system that can track automobile movements. And few turn down supermarket loyalty cards. Privacy economist Alessandro Acquisti has run a series of tests that reveal people will give away personal information like Social Security numbers just to get their hands on a pitiful 50-cents-off coupon(优惠卷)。

But privacy does matter ---- at least sometimes. It's like health: When you have it, you don't notice it. Only when it's gone do you wish you'd done more to protect it.

What does the author mean by saying "the 21st century replacement of being caught naked"?

A. People's personal information is easily accessed without their knowledge.

B. In the 21st century people try every means to look into others' secrets.

C. People tend to be more frank with each other in the information age.

D. Criminals are easily caught on the spot with advanced technology.

What would psychologists advise on the relationships between friends?

A. Friends should open their hearts to each other.

B. Friends should always be faithful to each other.

C. There should be a distance even between friends.

D. There should be fewer arguments between friends.

Why does the author say "we live in a world where you simply cannot keep a secret"？

A. Modern society has finally developed into an open society.

B. People leave traces around when using modern technology.

C. There are always people who are curious about others' affairs.

D. Many search engines benefit from giving away people's identities.

What do most Americans do as for privacy protection?

A. They change behaviors that might disclose their identity.

B. They use various loyalty cards for business transactions(交易)..

C. They rely most and more on electronic devices.

D. They talk a lot but hardly do anything about it.

According to the passage, privacy is like health because ___.

A. people will make every effort to keep it.

       B. its importance is rarely understood

C. it is something that can easily be lost

      D. people don't treasure it until they lose it

He didn’t like his job that he had a few years ago. So he      business.

       A．turned for B．turned in   C．turned on  D．turned to

I don't have enough money．I, _____, can't afford to buy Audi A3 Sportback．

       A．therefore            B．so                 C．however   D．thus

—Which sport is the most popular in the US?

       —It’s hard to say．It largely ______ what you mean by “popular”?

       A．belongs to            B．comes about

       C．depends on              D．determines on

.— Would you like to join me for a quick lunch before class?

—______,but I promised Nancy to go out with her.

 A. I'd like to       B. I like it        C. I don't      D. I will

Parties held by the wealthy seldom welcome poor guests.But last week China made it through the doors into a gathering of the world’s richest countries.

Jin Renqing ,Chian’s finance minister,and Zhou Xiaochuan,governor of the People’s Bank of China,joined a meeting of the Group of Seven(G7)on October1,2004.It is the fist time that China has had direct talks with the club.It was a good chance to share the world powers’thoughts about critical economic issues and promote understanding.

China’a participation is a natural part of its increasingly important role in the global economy.China is the world ‘s factory and the biggest market.

America and China made up almost half of global economic growth last year.“If Anerican consumers and Chinese producers were to reduce their activities at the same time,global growth would drop greatly,”said the Economist,a leading British economics magazine.

Up to now chinese economic stability(稳定)has been closely related to world development.“The increasingly connected global economy means that China should be a part of the meeting.”said Stephen Roach,a world famous economist.

During the meeting,China represented (代表)developing countries.It callde on the world’s developed nations to increase their  spending on aid to poorer  countries.Jin said that overall official help from developed countries is only 0.23 per cent of their Gross Domestic Product(国内生产值),much lower than the 0.7per cent UN targert.And this should be changed.

According to the passage,China particpates in the meeting of G7 because______.

        A.China has become one of the richest countries of the world           

B.China is playing a more important part in the world economy       

 C. China has more factories than any other countries in the world        

 D. developing countries want China to speak for them

Which of the following is true?

        A.China’s participation in the meeting of G7 is the first time that China has talks with the developed countries.          

 B.The stable economy of China has done a great deal to the development of the world.         C.The developed nations are trying their best to help the poorer countries at present

D.America has as large a market as China has.

From the passage we can infer that ________.

        A.Chinese producers as well as American consumers contribute a lot to the growth of the world economy

        B.the author doesn’t think it necessary for China to participate in the meeting          

C.China produces a lot but consumes a little        

D.the economist thinks that American consumers and Chinese producers will reduce their activitres at the same time

The underlined wrold “promote”in the second paragraph means_______.

 A.to make better      B. to make worse       C. to share       D.to make clear

For a long time they walked without saying   word. Jim was the first to break    silence.

        A. the; a  B. a ; the   C. a ; 不填    D. the; 不填

The chairman asked me to ______my speech to 20 minutes.

A. make           B. give                 C. limit              D. explain