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The idea of making such a clock was developed by a group of
A．students at Brown University.
B．teachers at Brown University.
C．sleep-deprived scientists.
D．former engineers at Axon Sleep Research Laboratories.
答案
更多“The idea of making such a clock was developed by a group of A．students at Brown Un”相关的问题
第1题
Which of the following statements best summarizes the main idea of the passage？
A．The sales of planes are increasing in China.
B．China is now making its efforts to grow into a great aviation power.
C．China's smaller carriers are in great need of airplanes.
D．Boeing and Airbus want to seize Chinese aviation market.
第2题
It is urgent to find new kinds of power because
A．the world's population is increasing day by day
B．scientists are worried about the idea of making full use of the sea into realities
C．nuclear energy cannot meet the need for more power for the world's industries
D．the supply of coal, oil and gas is decreasing while the need for the world's industries is increasing
第3题
M: Sponsoring a TV show would be effective, but it costs a lot.
W: I agree with you. However, It' s beyond our budget. Let' s see. What do you think of the idea of making community flyers？
M: Why couldn' t I think of that？ It won't cost a lot.
What are they talking about？
A．How to increase sales of their products
B．The naming of their new products
C．Famous TV shows
D．How to put an ad in the local paper
第4题
D
To fight a noise by making more noise sounds strange, but that ' s exactly what motor engi-
neers are doing in Germany and some other countries.
Carmaker ' s research and development laboratories have already proved that mixing more noise
with the help of loudspeakers can reduce the unwanted noise. Physicists have known about the tech-
nique for a long time. Sound is made up of pressure waves in the air. If two sound waves' of the
same frequency(频率） mix so that the highest point of one wave happens at the same time as the'
lowest point of the other wave, the result is no sound. Therefore, by producing a perfect copy of
the noise and delaying it by half a wave cycle(周期) ,we can kill the unwanted noise. Using this
technique many carmakers are racing to develop noise killing systems(系统) borh inside and outside
the cars.
Another good thing about the use of noise killing systems is that it saves the need for a silencer; this not only reduces the weight of a car, but also makes the motor bum less fuel and work better. Sorpe engineers believe that the noise killing system will be used in most cars within a few
years. But the carmakers haven' t decided if they will carry it into production because it would add several hundred dollars to the cost of their cars.
69. Which of the following gives a general idea of how the noise killing system works？
[ A]By producing pressure waves going in the opposite direction.
[ B ] By mixing high frequency sound waves with .low frequency sound waves.
[C]By mixing new sound waves with the noise and sending them out together.
[D]By making copies of the unwanted sound waves and letting them out a little later.
第5题
【C4】______ , we Americans seem to be 【C5】______ to the idea of buying our way to happiness. We shall all have 【C6】______ it to Heaven when we 【C7】______ enough.
And at the same time the 【C8】______ of American commercialism are hugely dedicated to making us deliberately 【C9】______ .
Advertising is one of our major 【C10】______ , and advertising exists not to 【C11】______ desires but to create them--and to create them faster than any man's 【C12】______ can satisfy them. We are taught that to 【C13】______ is to be happy, and then we are 【C14】______ to want. We are even told it is our 【C15】______ to want. It was only a few years ago, to 【C16】______ a single example, that car dealers across the country were flying banners that 【C17】______ "You Auto Buy Now". They were calling 【C18】______ Americans, as an act approaching patriotism, to buy at once, 【C19】______ money they did not have, automobiles they did not really need, and which they would be required to grow tired of by the time the next year's 【C20】______ were released.
【C1】
A．pursue
B．persist
C．preserve
D．prevail
第6题
听力原文：W: Hey, Jake, rise and shine.
M: What time is it, Shelly？ I have no idea how long I've been here.
W: Hmm... the library is too quiet. You need a place that's nice and noisy to study.
M: You've got a point. I always mean to study hard but I quickly nod off. It's just too quiet here.
W: Maybe you were thinking of Professor Carlson's psychology lesson. That's as good as a sleeping pill.
M: Yeah, nice guy, but he just can't seem to come down to earth. The whole time he seemed to be talking to himself.
W: You should have been in my history class with Professor Rivers. What a trip! One student got up and challenged him to name six women who contributed to the American Revolution. He was speechless.
M: The class must have been buzzing.
W: Especially when the student started rattling off over a dozen names. She was no fool and she wasn't going to let him off the hook.
M: Seems she gave Professor Rivers a good lecture.
W: Yeah, although I felt she should have given him a chance to save some face. After all I doubt whether many people can name even one.
M: That's true. I sure can't.
W: Jake, Jake. You should attend Professor Anderson's class on women's studies.
M: Hmm... Maybe Rivers could join me.
(1)
A．He was studying.
B．He was making noises.
C．He was nodding off.
D．He was looking for a book.
第7题
It is physically impossible for a well-educated, intellectual(理性的), or brave man to make money the chief of his thoughts; as physically impossible as it is for him to make his dinner the principal object of them. All healthy people like their dinner, but their dinner is not the main object of their lives. So all healthy-minded people like making money but the main object of their lives is not money; it is something better than money.
A good soldier, for instance, mainly wishes to do his fighting well. He is glad for his pay very properly so, and justly grumbles (抱怨) when you keep him ten months without it; still his main motion of his life is to win battles, not to be paid for winning them.
So of doctors. They like fees no doubt-ought to like them; yet if they are brave and well-educated, the entire object of their lives is not fees. They, on the whole, desire to cure the sick, and they are good doctors, and the choices were fairly put to them would rather cure their patients and lose their fees than kill him and get it. And so with all other brave and rightly trained men, their work is first, their fee second, very important always, but still second.
The main idea of the text is that _______.
A．people can't live without money.
B．money is as important as work.
C．the main object of the people's lives should not be money but work.
D．the entire object of the people's lives is making money.
第8题
Car makers' research and development laboratories have already proved that mixing in more noise with the help of loudspeaker can reduce the unwanted noise.
Physicists have known about the technique for a long time. Sound is made up of pressure waves in tire air. If two sound waves of the same frequency mix so that the highest point of one wave happens at the same time as the lowest point of the other wave, the result is no sound. Therefore, by producing a perfect copy of the noise and delaying it by half a wave cycle, we can kill the unwanted noise. Using this technique many carmakers are racing to develop noise-killing systems both inside and outside the cars.
Another good thing about the use of noise-killing systems is that it saves the need for a silencer; this not only reduces the weight of a car, but also makes the motor burn less fuel and work better.
Some engineers believe that the noise-killing system will be used in most cars within a few years. But the carmakers haven't decided if they will put it into production because it would add several hundred dollars to the cost of their cars.
Which of the following gives a general idea of how the noise-killing system works？
A．By producing pressure waves going in the opposite direction.
B．By mixing high frequency sound waves with low frequency sound waves.
C．By mixing new sound waves with the noise and sending them out together.
D．By making copies of the unwanted sound waves and letting them out a little later.
第9题
Letter A
Dear Etty Kit,
My roommate's family wants me to have Thanksgiving dinner with them in their home. I accepted the invitation, and I'm excited about going, but I'm a little worried about it, too. The social customs in my country are very different from here, so I'm a little afraid of making mistakes.
Should I bring a gift, such as candy(糖果) or flowers？ Should I arrive on time or a little late？ At the dinner table, how can I know which fork or knife to use？ How can I let the family know that I'm thankful for their kindness？
Yours sincerely,
Confused
Letter B
Dear Confused,
It's a good idea to bring a small gift when you go to a dinner party. Flowers are always nice, or you might bring a bottle of wine if you know that the family drinks it.
You should arrive on time or five to ten minutes late. Don't get there early. If you are going to be more than fifteen minutes late, you should call and tell them.
Try to be free at the dinner table. If you don't know about choosing the correct fork, knife, or spoon ,just watch the other people ,and follow them. If you still have no idea of what to do, don't be shy about asking the person next to you. It's better to ask than to be quietly uncomfortable and nervous.
If you like the food, say so. Of course, you'll thank the host and hostess for the meal and for their kindness. It's also a good idea to send a card or thank-you note the day after.
Yours,
Etty Kit
According to these two letters, which of the following statements is true？
A．Confused was glad to visit his roommate's house.
B．Confused was a little worried because he had no money for presents.
C．Confused should arrive at his roommate's house as late as possible.
D．Confused should eat the food up even if he didn't like the food.
第10题
The idea of making such a clock was developed by a group of
A．students at Brown University.
B．teachers at Brown University.
C．sleep-deprived scientists.
D．former engineers at Axon Sleep Research Laboratories.
