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发布时间:2024-05-18 04:22:18

[单项选择]Questions 62 to 66 are based on the following passage.
If a mother pushes her small son in a swing (秋千), giving only a light force each time he returns, eventually he will be swingirg.quite high. The child can do this for himself by using his legs to increase the motion, but both the mother’s push and the child’s leg movements must occur at the proper moment, or the extent of the swing will not increase. In physics, increasing the swiag is increasing the amplitude (振幅); the length of the rope on the swing determines its natural oscillation (摆动) period. This ability of an object to move periodically or to vibrate when stimulated by a force operating in its natural period is called resonance.
Resonance is observed many times without consciously thinking about it; for example, one may find an annoying vibration or shimmy in an automobile, caused by a loose engine mount vibrating with increasing amplitude because of an out of-round tire. The bulge (凸出部分) on t
A. vibrate
B. resonate
C. swing
D. oscillate

更多"Questions 62 to 66 are based on the"的相关试题:

[单项选择]Questions 11 to 14 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.What do children in Britain do at school
A. They develop their identities within peer groups.
B. They receive informal education.
C. They perform voluntary community services.
D. They receive financial supports.
[单项选择]Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.Why did Edgar Allen Poe leave the University of Virginia
A. He disliked being disciplined.
B. He was expelled by the university.
C. He couldn’t pay his gambling debts.
D. He enjoyed working for a magazin
[单项选择]Questions 57 to 61 are based on the following passage.
It was going to have roughly the effect of a neutron bomb attack on high streets and shop ping malls. The buildings would be left standing but the people would vanish. Such was the superior efficiency of selling things via the Internet that brick-and-mortar stores would be unable to compete on price, choice or even service. Book and music sellers had already been "Amazoned". Soon web-based "category-killers", in everything from toys to pet supplies, would overwhelm their physical-world competitors. Shoppers would never be more than a mouse-click from the best deals. Traditional retailers, terrified of cannibalizing (同类相食) sales and destroying the value of their expensive properties, were already too late to meet the challenge. "In some categories," said Mary Meeker, a seer (预言家) of the Internet at Morgan Stanley, "it’s already game over."
These are convenient beliefs for anyone justifying some e-c
A. distributing goods becomes troublesome and expensive
B. the notional price advantages of e-commerce are eliminated
C. old-fashioned warehouses and lorries have to be still in use
D. goods must be wrapped again and expensively returned
[单项选择] Questions 52 to 56 are based on the following passage.
The poor old consumer! We’d have to pay a great deal more if advertising didn’t create mass markets for products. It is precisely because of the heavy advertising that consumer goods are so cheap. But we get the wrong idea if we think the only purpose of advertising is to sell goods. Another equally important function is to inform. A great deal of the knowledge we have about household goods derives largely from the advertisements we read. Advertisements introduce us to new products or remind us of the existence of ones we already know about. Supposing you wanted to buy a washing machine, it is more than likely you would obtain details regarding performance, price, etc, from an advertisement.
Lots of people pretend that they never read advertisements, but this claim may be seriously doubted. It is hardly possible not to read advertisements these days. And what fun they often are, too! Just think what a railw
A. To introduce their new functions.
B. To compare them with new products of the same sort.
C. To tell that they are still available.
D. To correct any impropriate information about them.
[填空题]Questions 47 to 51 are based on the following passage.
Motorways are no doubt the safest roads in the country. Mile for mile, vehicle for vehicle you are much less likely to be killed or seriously injured than on an ordinary, road. On the other hand, motorways have a far better accident record than any other part of our national road system because of the speed and volume of traffic. If you do have a serious accident on a motorway, fatalities are much more likely to occur than in a comparable accident elsewhere on the roads. It is reported that motorway accidents account for some 10% of all injuries out side urban areas.
Motorways have no sharp, bends, no roundabouts or traffic lights and thus speeds are much greater than on other roads. Though the 70 m.p.h, limit is still in force, it is often treated with the contempt that most drivers have for the 30 m.p.h, limit applied in built-up areas in Britain. Added to this is the fact that motorway drivers seem to like t
[单项选择] Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now, listen to the passage.

The best title for this selection is
A. Food from Coal and Gas
B. Non-spoiling and New Foods
C. Spacecraft Food
D. The Shortage of Food
[单项选择]Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.

Which of the following is NOT a factor for watches to become prevalent
A. People want to show off their wealth.
B. People want to be more efficient nowadays.
C. People want to be on time for work.
D. Watches are no longer luxuries now.
[单项选择]Questions 62 to 66 are based on the following passage.
Proper arrangement of classroom space is important to encouraging interaction. Most of us have noticed how important physical setting is to efficiency and comfort in our work. College classroom space should be designed to encourage the activity of critical thinking.
We have entered the twenty-first century, but step into almost any college classroom and you step back in time at least a hundred years. Desks are normally in straight rows, so students can clearly see the teacher but not all their classmates. The assumption behind such an arrangement is obvious. Everything of importance comes from the teacher.
With a little imagination and effort, unless desks are fixed to the floor, the teacher can correct this situation and create space that encourages interchange among students. In small or standard-size classes, chairs, desks and tables can be arranged in a variety of ways. The primary goal should be for everyo
A. for the teacher to divide students into small groups
B. to make it possible for students to interact with each other
C. for the teacher to find out how students think
D. to give students more opportunities to practice speaking
[单项选择] Questions 17 to 20 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.

What was the score after the first 45 minutes of the final
A. Argentina 2-1 Uruguay
B. Argentina 1-2 Uruguay
C. Argentina 4-2 Uruguay
D. Argentina 2-4 Uruguay
[填空题]Questions 47 to 56 are based on the following passage.
Language barriers present a variety of challenges for children of any age. In Houston alone, bilingual education programs have helped many grade-school students (47) the trials that accompany not being able to speak English.
In the past, such vital curriculum was not always readily (48) for children who needed it. One person who experienced the (49) of school life without a bilingual program was UH education professor Yolanda Padr6n.
As a child, Padr6n and her family moved from Cuba to the United States. Settling in Landover, Mass., she was placed into elementary school, but had no working (50) of English. With that, she found herself at a (51) disadvantage.
"When I came here, I was in the fifth grade, but because I didn’t speak English, they put me back a year," she said. "We lived there for about six months before we moved to Houston. When I came h

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