One day Burton took his children to the zoo. He told them to be ready at two o'clock, but they weren't all ready. Little Tommy could not find his shoes. He could find his brown shoes, but he couldn't find his black shoes, and he wanted to wear his black shoes to the zoo. At a quarter past two his brothers and sisters asked him to wear his brown shoes, so be put them on; and at last they were all ready to leave. Their mother waved goodbye and told them to enjoy their trip to the zoo. Then she sat down to read a book in the empty quiet house.

　　When they got to the zoo, Burton told the children to stay with him; he didn't want them to get lost in the zoo. Little Tommy asked his father to buy some food for the bears, but his father answered, “Look at that notice, Tommy. It tells us not to feed the animals.”

　　“Why does it tell us not to feed the animals?” asked Tommy.

　　“Because they get a lot of food already,” said Burton, “and people often try to give them the wrong food; that's bad for the animals.”

　　At three o'clock the dolphin（海豚）show began. All the Burtons wanted to see it, so Mr Burton bought seven tickets and took the children down to the dolphinarium（海豚馆）. The dolphins did a lot of tricks：they jumped up into the air and flew through hoops（大铁圈）over the water; they caught rubber rings with their noses; and they played “basketball” with red and yellow balls. The trainer blew his whistle when he wanted the dolphins to do something, and when they did it he gave them some fish.

　　“How can the dolphins do all these tricks? ”asked little Tommy.

　　“Because they are very intelligent（聪明的）,”said his elder brother. “They can understand when their trainer tells them to do something; and they like to do tricks（耍把戏）because their trainer always gives them some fish when they do them .”

　　“That's good,” said Tommy. “I like to do tricks, too. Why doesn't Father give me some candies（糖果）when I do them?”

(1) Burton ____ the house at two o'clock.

[　　]

A．wants to leave

B．wanted to leave

C．doesn't want to leave

D．didn't want to leave

(2) Tommy was looking for _____.

[　　]

(3) Burton told his children ______.

[　　]

A．to get lost in the zoo

B．to feed the bears

C．to enjoy their trip to the zoo

D．not to leave him

(4) _____ the animals the wrong food.

[　　]

A．People often try to give

B．People always want to give

C．Nobody tries to give

D．Nobody wants to give

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 their 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 Face book 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 every one 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. In original business model, which involved selling ads and putting them at the side of the pages totally. 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 Charles Schumer called on Facebook to change its privacy policy. He also urged the Federal Trade Commission to set guidelines 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 think that whatever Facebook has done so far to invade our privacy, it's only the beginning. That 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 trust. That's too high a price to pay.

43.　 Why do people give their personal information to Facebook according to Paragraph 1?

A.　 Because they can get some money from Facebook.

B.　 Because their information is not important.

C.　 Because they are promised to have a fun and free service.

D.　 Because they can also get other people's information.

44.　 What does the author say about most Facebook users?

A.　 They are unwilling to give up their personal information.

B.　 They don't know their personal data enriches Facebook.

C.　 They don't identify themselves when using the website.

D.　 They care very much about their personal information.

45.　 Why does Facebook make changes to its rules according to Elliot Schrage?

A. To give better service to its users.　 B. To obey to the Federal guidelines.

C. To improve its users' connection.　　 D. To expand its business.

46.　 Why does Senator Charles Schumer support publicly?

A.　 Setting guidelines for advertising on websites.

B.　 Banning the sharing of users' personal information.

C.　 Making regulations for social-networking sites.

D.　 Removing ads from all social-networking sites.