单选题Some people (choose) to go on cruises as a way of rewarding themselves. Certainly if you have plenty of money this (can be) a good idea, though it may not (turn off) quite (as) expected.

单选题Man: This suitcase cost me 200 dollars. Woman: 200 dollars for a piece of junk like that? That's a rip-oft. Question: What does the woman mean?

单选题A: I'd like to place a person-to-person call to Chicago. The number is 932-8647, but I don't know the area code. B: ______

单选题Mary Mapes Dodge exercised {{U}}considerable{{/U}} influence on children's literature in late nineteenth century.

单选题Meanwhile, I always Ukept in touch with/U my former professor at college.

单选题The prehistoric art of inscribing figures and designs on rock surfaces seems to have slowly disappeared with the {{U}}advent{{/U}} of agriculture, which required a large amount of time and energy.

单选题His attempts to ______ the two friends failed bemuse they had complete faith in each other.

单选题Many of the ships (went down) with valuable treasure; but none of them (has made) great treasure tales. (As) a good wine, treasure is improved (by age).

单选题Did you suspect that the entire episode was an elaborate {{U}}deception?{{/U}}

单选题When the suspect appeared in court, the judge cast a ______ look at him.

单选题We had an unusually heavy rainfall due to the typhoon, and for a while, traffic became paralyzed.

单选题A: Hello, George. What a lovely home you have!B: ______

单选题A: Ray, aren't you going straight home after school today? B: ______.

单选题Growing economic problems were Uhighlighted/U by a slowdown in oil output.

单选题After the depression, there was a business boom .

单选题Human mind can respond quickly to what is before it, and Uby the same token/U can call up from within a host of appropriate ideas.

单选题{{B}}Passage Five{{/B}} The collapse of the Earth's magnetic field—which guards the planet and guides many of its creatures—appears to have started seriously about 150 years ago, the New York Times reported last week. The field's strength has decreased by 10 or 15 per cent so far and this has increased the debate over whether it signals a reversal of the planet's lines of magnetic force. During a reversal, the main field weakens, almost vanishes, and reappears with opposite polarity. The transition would take thousands of years. Once completed, compass needles that had pointed north would point south. A reversal could cause problems for both man and animals. Astronauts and satellites would have difficulties. Birds, fish and animals that rely on the magnetic field for navigation would find migration confusing. But experts said the effects would not be a big disaster, despite claims of doom and vague evidence of links between past field reversals and species extinctions. Although a total transition may be hundreds or thousands of years away, the rapid decline in magnetic strength is already affecting satellites. Last month, the European Space Agency approved the world's largest effort at tracking the field's shifts. A group of new satellites, called Swarm, is to monitor the collapsing field with far greater precision. "We want to get some idea of how this would evolve in the near future, just like people trying to predict the weather," said Gauthier Hulot, a French geophysicist working on the satellite plan. "I'm personally quite convinced we should be able to work out the first predictions by the end of the mission." No matter what the new findings, the public has no reason to panic. Even if a transition is coming on its way, it might take 2 000 years to mature. The last one took place 780 000 years ago, when early humans were learning how to make stone tools. Deep inside the Earth flow hot currents of melted iron. This mechanical energy creates electromagnetism. This process is known as the geophysical generator. In a car's generator, the same principle turns mechanical energy into electricity. No one knows precisely why the field periodically reverses. But scientists say the responsibility probably lies with changes in the disorderly flows of melted iron, which they see as similar to the gases that make up the clouds of Jupiter.

单选题Woman: We are going to go away on vacation... Can you hear me?Man: I'm all ears.Question: What does the man mean?