试题与答案

如图(甲)所示电路,电源电动势为E,内阻不计,滑动变阻器的最大阻值为R,负载电阻

题型:选择题

题目:

如图(甲)所示电路,电源电动势为E,内阻不计,滑动变阻器的最大阻值为R,负载电阻为R0.当滑动变阻器的滑动端S在某位置时,R0两端电压为E/2,滑动变阻器上消耗的功率为P。若将R0与电源位置互换,接成图(乙)所示电路时,滑动触头S的位置不变,则

A.R0两端的电压将小于E/2

B.R0两端的电压将等于E/2

C.滑动变阻器上消耗的功率一定小于P

D.滑动变阻器上消耗的功率可能大于P

答案:

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题型:阅读理解

In the age of reality television, success isn’t the only way to the public eye. Failure can also create fame, just like William Hung, 21, a native of Hong Kong.

Hung recently has made an agreement with US-based entertainment firms Koch Records and Fuse Music Network. They will publish a full-length record, titled “The True Idol” on April 6.

The idol is a civil engineering student at the University of California at Berkeley. He did a version of Ricky Martin’s “She Bangs” on the television show “American Idol 3”, on January 27. The Fox TV singing contest searches for pop stars among ordinary people. In the case of Hung, however, his act was so bad that the judges cut him off in mid-act.

Hung’s response? “I already gave my best, so I have no regrets at all.” That’s good, because any common person would have found plenty to regret: The off-key singing. The blue Hawaiian shirt worn with pants pulled up too high. The terrible dancing. The hips jerking (摇摆) to a beat that did not belong to the song, maybe not even to this planet. It was, by all accounts, bad.But, it was this very bad act that sold well.Marc Juris, president of Fuse, explained it this way: “Every one of us is happily guilty of singing our favorite song at the top of our lungs with complete freedom, completely off-key and completely unworried. That’s what William did and immediately won the hearts of America.”

Whatever it is, for the moment it’s big. Three websites devoted to Hung have gone up on the Internet in the past few weeks. Versions of his performance have been remixed with hip hop and techno-music and have made it to the top 10 request list at a Chicago radio station.So, what does Hung think of this?

“There were all these people saying things about me. A lot were saying I was very courageous and that I was great on the show, but some didn’t have much respect for me and some were kind of mean.”

Now he says he’s not so sure whether to distance himself from the glamour (魅力) or to accept it. Returning to normal hasn’t been easy.

13.What is the main idea of this passage?

A.Sometimes an idol behaves quite foolishly.  

B.Hung’s performance attracted the public eye.

C.How an unsuccessful person became famous.

D.Success sometimes does not require hard work.

14.What does the underlined word “it” in Paragraph 7 refer to?

A.William Hung.     B.Hung’s bad act.   C.Hung’s website.    D.The public’s opinion.

15.Which of the following shows the correct order of what happened to Hung?

a.The entertainment firms made an agreement with Hung.

b.The judges cut Hung off in mid-act in the singing contest.

c.Hung became popular among Americans.

d.Hung gave a terrible performance though he tried his best.

e.Three websites put Hung’s funny performance on the Internet.

A.d, b, e, c, a       B.a, c, d, b, e        C.a, d, b, c, e          D.d, b, a, e, c

16.Why was Hung able to win the hearts of America?

A.His success was based on his own hard work.

B.He attracted people’s attention in the contest.

C.He was good-looking though he didn’t sing well.

D.His character was completely different from other idols’.

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