题目内容
Though money, his parents still managed to send him to university．
A． lacked B． lack C． lacking D． lacks
C
解析:
略
I went to my favorite restaurant one evening to have supper. I knew the owner very well. __36 _ I was waiting for the soup to arrive, I looked around to see if I knew anyone in the restaurant. It was __37_ that I noticed a man sitting at the corner table __38__ watching in my direction, as if he knew me. The man had a newspaper open __39__him, which he was __40__ to read, though all the while I could see that he was keeping an eye on me. When the waiter brought the soup, the man was clearly __41_ by the familiar way in which the waiter and I talked to each other. He became even more puzzled as time went on and it grew more and more obvious that I was well__ 42__ in the restaurant. In the end he got up and went to the kitchen. After a few minutes he came_ 43__ again, paid his bill and left without__ 44__ looking in my direction.
When I finished and was__ 45__ to pay my bill, I called the owner over and __46__him what the man had wanted. The owner at__47_ didn’t want to tell me. I __48__ “Well”, he said “ that man was a detective.” “__49__?” I said, much surprised. “he followed you here because he_ 50__ you were the man he was looking for,” the owner said. “He showed me a photo of the__51__ man. He certainly looked __52__ you! Of course since we know you here. I was able to make him __53 _that he had made a mistake.” “It’s__ 54__ I came to a restaurant where I’m where I’m known,” I said, “otherwise I __55__have been taken to police station!”
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Scientist Says ‘No’ to Human Cloning
“I’ve never met a human worth cloning,” says cloning expert Mark Westhusin from his lab at Texas A&M University. “It’s a stupid endeavor.”
That’s an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and a cat.
They just might succeed in cloning Missy soon — or perhaps not for another five years.
Westhusin's experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog's eggs, the A&M team has produced only a dozen or so embryos carrying Missy's DNA. None have survived the transfer to a surrogate（代孕的）mother. The wastage of eggs and the many spontaneously aborted(流产，发育不全) fetuses（胎）may be acceptable when you're dealing with cats or bulls, he argues, but not with humans. “Cloning is incredibly inefficient, and also dangerous,” he says.
Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1997, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. “A lot of people want to clone pets, especially if the price is right,” says Westhusin. Cost is no obstacle for Missy's mysterious billionaire owner; he's put up $3.7 million so far to fund A&M's research.
Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy's fine qualities after she does die. The prototype（原型；雏形）is, by all accounts, athletic, good-natured and supersmart. Missy's master does not expect an exact copy of her. He knows her clone may not have her temperament（气质、性情）. In a statement of purpose, Missy's owner and the A&M team say they are “both looking forward to studying the ways that her clones differ from Missy.”
Besides cloning a great dog, the project may contribute insight into the old question of nature vs. nurture. It could also lead to the cloning of special rescue dogs and many endangered animals.
However, Westhusin is cautious about his work. He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems~ “Why would you ever want to clone humans,” Westhusin asks, “when we're not even close to getting it worked out in animals yet?”
1.By “stupid endeavor”, Westhusin means to say that ________.
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A．human cloning is a foolish undertaking |
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B．animal cloning is absolutely impractical |
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C．human cloning should be done selectively |
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D．animal cloning is not worth the effort at all |
2.What does the first paragraph tell us about Westhusin's dog cloning project?
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A．Its success is already in sight. |
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B．It is progressing smoothly. |
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C．It is doomed to utter failure. |
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D．Its outcome remains uncertain. |
3.By cloning Missy, Mark Westhusin hopes to ________.
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A．study the possibility of cloning humans |
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B．search for ways to modify its temperament |
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C．find out the differences between Missy and its clones |
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D．examine the reproductive system of the dog species |
4.We learn from the passage that animal clones are likely to have ________.
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A．a bad temper |
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B．defective（有缺陷的、有毛病的）organs |
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C．immune deficiency |
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D．an abnormal shape |