I didn't see Mary at yesterday's party. If she had come,she . 我没在昨天的晚会上看到Mary.她要是来了.会玩得很开心的. 题目和参考答案——青夏教育精英家教网—

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5. I didn't see Mary at yesterday's party. If she had come,she . (time)

我没在昨天的晚会上看到Mary。她要是来了，会玩得很开心的。

5. would have had a good/wonderful time考查对已发生事实的虚拟。

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Crying babies,buzzing mosquitoes,ringing car alarms,they're all annoying noises. But what's the worst? A recent survey lists the things we hate to hear.

However,numberone on the list was the sound of a dentist's drill. "That lust sends shivers down my spine ," said one respondent. " After a visit to the dentist,I sometimes wake up at night with that sound in my head. It's horrible," said another. " I've seen patients shaking with fear when I bring out the drill," explained a dentist. Of course,anyone who has actually been to the dentist and heard the sound will probably agree with that.

But there's some good news,a new device developed by experts at College London,Brunei University and London South Bank University can cancel out the sound of the frightening drill. The tiny machine allows patients to listen to music on an MP3 player while the sound of the drill is eliminated. However,patients are still able to hear the dentist's voice because not all sounds are filtered out (滤除) .

The theory behind it is fairly straightforward. Microphones are placed close to the dental drill. These pick up any sounds and transform them into digital signals. Then,electronic filters cancel out any unwanted sound waves. This can be done even if the wave's amplitude (振幅) and frequency changes. However,the great thing is that this technology also allows other noises,such as the dentist's voice to come through.

It's easy to use,too. Patients simply plug the soundfiltering machine into their MP3 players. Then,via headphones,they can listen to music and hear the dentist's voice without being disturbed by the noise of the drill. Fantastic！

So,next time you go to the dentist,remember to bring your MP3 player.

( ) 5. What is the purpose of the text?

A. To announce a recent survey.

B. To introduce a new product.

C. To list some annoying noises.

D. To remind to bring your MP3.

( ) 6. What does the underlined sentence in Paragraph 2 most probably mean?

A. It makes me surprised. B. It makes me delightful.

C. It makes me wide awake. D. It makes me scared.

( ) 7. What technology is the tiny machine based on?

A. It can get rid of all the sounds.

B. It can transform sound waves into digital signals.

C. It can filter out the unwanted sounds.

D. It can change the sound wave's amplitude and frequency.

( ) 8. Which of the following words best describe the tiny machine?

A. Heavy and useless. B. Simple and practical.

C. Clear but frightening. D. Fantastic but noisy.

6. I know plenty of friends who end up having no breakfast ，and have just coffee or orange juice.

A. altogether B. shortly C. merely D. anyhow

3. It never occurred to him that he got in the quarrel between Tom and Jack,which at first had nothing to do with him.

A. involved B. engaged C. interested D. absorbed

10. Having lived in the town for many years,Mr Smith no longer felt among the local people.

A. out of control B. out of touch

C. out of place D. out of use

10. You'd better ignore him completely;the more attention you give him, . (proud)

你最好完全忽视他；你越是注意他，他越得意。

7. Busy and successful as he was,the novelist was willing to any promising young man and give him all the help he could.

A. take up B. pick up C. make up D. look up

4. Before Sam can repair his bicycle,he must know why it does not work. For example,he must the parts that are wrong.

A. check B. determine C. correct D. recover

5. He has been here in this modern city for just a few days,and he is about night life in this city.

A. worried B. innocent C. particular D. doubtful

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