题目内容

24.                   is still a problem. ( support)

他们是否会支持我们仍是个问题。

24. Whether they will support us考查主语从句.、根据句意中的"是否"可知，从句用whether引导— whether与if作"是否"讲，在用法上有相同之处，也有不同之处。相同之处：whether和if都能引导宾语从句，且能用在it作形式主语的从句中。在以下情况，只能用whether而不能用if：从句放在句首时；直接跟有or not时;在表语从句和同位语从句中；用在介词之后，引导宾语从句；直接接不定式。

练习册系列答案
相关题目

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 some of these things have already happened to you. Who would watch you without your permission? It might be a girlfriend,a marketing company, a boss or a criminal. Whoever it is，they will see you in a way you never wanted to be seen―the 21st century equivalent of being caught naked.

Psychologists(心理学家)tell us boundaries are healthy，and it' s important to show 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(民意测试)ask Americans about privacy，most say they are concerned ab?out losing it. A survey found 60 percent of respondents say they feel their privacy is "slipping away， and that bothers me".

But people say one thing and do another. Only a few Americans change any behaviors in an effort to protect 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. Many people will give up personal information like Social Security numbers just to get their hands on a pitiful 50-cents-off coupon(优惠券).

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.

(   ) 4. What does the underlined part "the 21st century equivalent of being caught naked" in paragraph 2 mean?

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

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

C.  People's personal information is easily got without their knowledge.

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

(   ) 5. What do most Americans do about privacy protection?

A.  They change behaviors that might make others know their identity.

B.  They use various loyalty cards for business.

C.  They rely more and more on electronic devices.

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

(   ) 6. The writer of the passage may NOT agree that        .

A.  there should be a distance even between friends

B.  modern society has finally developed into an open society

C.  people leave traces around when using modern technology

D.  privacy is like health in that people don't cherish it until they lose it
(   ) 7. The main purpose of the text is to        .

A.  describe people's attitudes towards privacy protection

B.  tell the fact that we live in a world where we simply cannot keep a secret

C.  advise people to keep a distance from friends, family and lovers

D.  stress the importance of privacy protection

8. The news that you told me the other day needs             (confirm)

前几天你告诉我的新闻需要证实。

12. The fact                     came into light. (steal)

他愉了朋友的电脑的事实大白于天下了。

19. The reason why I was sad was               . (understand)

我很伤心的原因是他不理解我。

29. We all find it important          a quick decision about this matter. (make)

我们都认为对这件事立刻做出决定很重要。

(   ) 6. People can accept the fact that prices tend to rise year by year but at a( n)        rate.

A. modest B. sharp C. regular D. amazing

Elderly adults who regularly drink green tea may stay more agile (敏捷的)and independent than their peers over time,according to a Japanese study that covered thousands of people.

Green tea contains antioxidant chemicals(抗氧化物)that may help stop the cell damage that can lead to disease. Researchers have been studying green tea's effect on everything from cholesterol (胆固醇)to the risk of certain cancers，with mixed results so far.

They found those who drank the most green tea were the least likely to develop "functional disability"，or problems with daily activities or basic needs, such as dressing or bathing.

Specifically,almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled, compared with just over 7 percent of people who drank at least five cups a day.

The study did not prove that green tea alone kept people agile as they grew older. Green tea lovers generally had healthier diets, including more fish,vegetables and fruit, as well as more education, lower smoking rates，fewer heart attacks and strokes，and greater mental sharpness. They also tended to be more socially active and have more friends and family to rely on. But even with those factors accounted for,green tea itself was tied to a lower disability risk,the researchers said.

People who drank at least five cups a day were one-third less likely to develop disabilities than those who had less than a cup per day. Those people who averaged three or four cups a day had a 25 percent lower risk.

Although it's not clear how green tea might offer a buffer(緩沖)against disability,Tomata's team did note that one recent study found green tea extracts (提取物)seem to increase leg muscle strength in older women.

While green tea and its extracts are considered safe in small amounts, they do contain caffeine and small amounts of vitamin K，which means it could affect drugs that prevent blood clotting(凝固).

(   ) 8. What does the underlined word "peer" mean in the first paragraph?
A. Father. B. Brother.

C. A person of the same age. D. A person living in the same neighborhood.

(   ) 9. What can be learned from the passage?

A.   Antioxidant chemicals can lead to disease.

B.   Those who often drink green tea can't develop "functional disability'.

C.   "Functional disability" is related to problems with daily activities or basic needs.

D.   People who drink at least five cups of green tea a day are not likely to become functionally disabled.

(   ) 10. What does the fifth paragraph mainly tell us?

A.   How the study was proved.

B.   Why green tea lovers can keep agile.

C.   What healthier diets include.

D.   How to lower disability risk.

(   ) 11. What have the researchers discovered?

A.   Those who drank green tea can't develop "functional disability".

B.   Green tea alone kept people agile as they grew older.

C.   How green tea might offer a buffer against disability.

D.   Green tea extracts seem to increase leg muscle strength in older women.
(   ) 12. From the passage we can infer that        .

A.   vitamin K is contained in caffeine

B.   vitamin K is good for our blood

C.   vitamin K is bad for our health

D.   vitamin K has influence on some drugs

9. He felt very excited for        the only real vase among the false ones,which looked exactly the same in appearance. (pick )

因为幸运地从那些赝品花瓶中挑出唯一的一个真品，他感到很兴奋。

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网