题目内容

6．What is the man's favorite activity？
A．Watching TV
B．Reading a book
C．Listening to music．

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16．Whee does the conversation probably take place？
A．On the phone          
B．At a restaurant．
C．In a supermarket．
17．If there was ever a study not to lose sleep over，it's this one．People deprived（剥夺） of a good night's rest are more likely to experience changes in brain activity that can increase the urge to eat high-calorie foods．
Matthew Walker at the University of California in Berkeley and his colleagues conducted the first study of brain activity in relation to food among sleep-deprived people．The team studied brain patterns in 23people，first after a night of peaceful sleep and then after a night without sleep．
Sleep deprivation reduced activity in three areas of the brain that help，among other things，to process flavour signals．It also led to more activity in the brain，which helps govern the desire to eat．The team also found that volunteers considered pictures of high-calorie foods as more desirable after no sleep than after a good rest．
It may make evolutionary（进化的） sense，says Laurent Brondel at the University of Burgundy in Dijon，France．The long summer days at higher latitudes（纬度） deprive animals of sleep，but they use their time awake to eat more，which helps them get through the short days of winter when there is not enough food．
That's only part of the story，though，says Stephanie Greer，another member of the team．The body does need more energy if someone remains awake for longer-but the high-calorie foods that become more desirable after sleep deprivation would more than meet this additional need．The changes in food desirability encouraged by the sleep-deprived brain may originally have been an important adaptation but today they no longer benefit our health．
Brondel agrees with this conclusion．"Sleep deprivation could change eating behaviour，"he says．Whatever the cause，there's one clear message from the study．"These findings provide opportunities to adjust our environment and behaviour in new ways to handle such health problems，"Greer says．"Specifically，our study shows that one choice people can make is to regularly obtain enough amounts of sleep．"
28．Why did Matthew Walker conduct the study about sleep-deprived people？D
A．To learn more about sleep patterns．
B．To warn of the danger of high-calorie foods．
C．To know the importance of getting enough rest．
D．To find relations between brain activity and food．
29．Which of the following is the correct cause-and-effect diagram？A
A．sleep→brain activity→appetite（胃口）
B．sleep→appetite→brain activity
C．brain activity→sleep→appetite
D．appetite→brain activity→sleep
30．Sleep deprivation of animals at higher latitudesC．
A．makes them evolve
B．does harm to their health
C．helps them survive winters
D．keeps them awake in winters
31．What does the author mean by saying"That's only part of the story"in Paragraph 5？B
A．The high-calorie foods are more desirable．
B．Sleep deprivation also has its bad effects．
C．Our body is in need of more energy．
D．The changes do animals harm．
14．What does the woman want to do？
A．See a machine．
B．Help the man．
C．Buy a drink．
1．Where does the conversation take place probably？
A．In a food store．
B．In a car．
C．In a cinema．
11．When will the speakers meet？
A．At 8 o'clock．
B．At 7 o'clock．
C．At 7：30．
18．Why isn't Helen present？
A．She forgot to come．
B．She changed her mind．
C．She wasn't invited．
15．People are being lured（引诱） onto Facebook with the promise of a fun，free service without realizing they're paying for it by giving up large amounts of personal information．Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages．
Most Facebook users don't realize this is happening．Even if they know what the company is up to，they still have no idea what they're paying for Facebook because people don't really know what their personal data is worth．
The biggest problem，however，is that the company keeps changing the rules．Early on，you keep everything private．That was the great thing about Facebook-you could create your own little private network．Last year，the company changed its privacy rules so that many things-your city，your photo，your friends'names-were set，by default（默认） to be shared with everyone on the Internet．
According to Facebook's vice-president Elliot Schrage，the company is simply making changes to improve its service，and if people don't share information，they have a"less satisfying experience"．
Some critics think this is more about Facebook looking to make more money．Its original business model，which involved selling ads and putting them at the side of the page，totally failed．Who wants to look at ads when they're online connecting with their friends？
The privacy issue has already landed Facebook in hot water in Washington．In April，Senator（议员） Charles Schumer called on Facebook to change its privacy policy．He also urged the Federal Trade Commission to set principles for social-networking sites．"I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them，"Schrage admits．
I suspect that whatever Facebook has done so far to invade our privacy is only the beginning，which is why I'm considering deactivating（撤销） my account．Facebook is a handy site，but I'm upset by the idea that my information is in the hands of people I don't know．That's too high a price to pay．
32．What do we learn about Facebook from the first paragraph？C
A．It is a website that sends messages to targeted users．
B．It makes money by putting on advertisements．
C．It profits by selling its users'personal data．
D．It provides loads of information to its users．
33．Why does Facebook make changes to its rules according to Elliot Schrage？C
A．To improve its users'connectivity．
B．To follow the Federal guidelines．
C．To offer better service to its users．
D．To expand its scope of business．
34．What does Senator Charles Schumer advocate？A
A．Working out regulations for social-networking sites．
B．Banning the sharing of users'personal information．
C．Removing ads from all social-networking sites．
D．Setting guidelines for advertising on websites．
35．Why does the author plan to cancel his Facebook account？B
A．He is dissatisfied with its current service．
B．He doesn't want his personal data abused．
C．He finds many of its senior executives untrustworthy．
D．He is annoyed with its frequent rule changes．
16．Don't be too hard on yourself．Being content/satisfied with（满足）what you have is the key to happiness．

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