题目内容
On the other hand, the theory is implausible because convection does not normally occur along lines, and it certainly does not occur along lines broken by frequent offsets or changes in direction, as the ridge is. Also it is difficult to see how the theory applies to the plate between the Mid-Atlantic Ridge and the ridge in the Indian Ocean. This plate is growing on both sides, and since there is no intermediate trench, the two ridges must be moving apart. It would be odd if the rising convection currents kept exact pace with them. An alternative theory is that the sinking part of the plate, which is denser than the hotter surrounding mantle, pulls the rest of the plate after it. Again it is difficult to see how this applies to the ridge in the South Atlantic, where neither the African nor the American plate has a sinking part.
Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates. This last theory is attractive because it gives some hope of explaining the enclosed seas, such as the Sea of Japan. These seas have a typical oceanic floor, except that the floor is overlaid by several kilometers of sediment. Their floors have probably been sinking for long periods.
It seems possible that a sinking current of cooled mantle material on the upper side of the plate might be the cause of such deep basins. The enclosed seas are an important feature of the earth's surface and seriously require explanation because, in addition to the enclosed seas that are developing at present behind island arcs, there are a number of older ones of possibly similar origin, such as the Gulf of Mexico, the Black Sea, and perhaps the North Sea.
According to the traditional view of the origin of the ocean basins, which of the following is sufficient to move the continental plates？ ______
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A．To expose the horrible lives of slaughter house workers in Chicago.B．To urge the pre
1 Fred Cooke of Salford turned 90 two days ago and the world has been beating a path to his door. If you haven't noticed, the backstreet boy educated at Blackpool grammar styles himself more grandly as Alastair Cooke, broadcaster extraordinaire. An honorable KBE, he would be Sir Alastair if he had not taken American citizenship more than half a century ago.
2 If it sounds snobbish to draw attention to his humble origins, it should be reflected that the real snob is Cooke himself, who has spent a lifetime disguising them. But the fact that he opted to renounce his British passport in 1941 -- just when his country needed all the wartime help it could get -- is hardly a matter for congratulation.
3 Cooke has made a fortune out of his love affair with America, entrancing listeners with a weekly monologue that has won Radio 4 many devoted adherents. Part of the pull is the developed drawl. This is the man who gave the world "midatlantic", the language of the disc jockey and public relations man.
4 He sounds American to us and English to them, while in reality he has for decades belonged to neither. Cooke's world is an America that exists largely in the imagination. He took ages to acknowledge the disaster that was Vietnam and even longer to wake up to Watergate. His politics have drifted to the right with age, and most of his opinions have been acquired on the golf course with fellow celebrities.
5 He chased after stars on arrival in America, fixing up an interview with Charlie Chaplin and briefly becoming his friend. He told Cooke he could turn him into a fine light comedian; instead he is an impressionist's dream.
6 Cooke liked the sound of his first wife's name almost as much as he admired her good looks. But he found bringing up baby difficult and left her for the wife of his landlord.
7 Women listeners were unimpressed when, in 1996, he declared on air that the fact that 4% of women in the American armed forces were raped showed remarkable self-restraint on the part of Uncle Sam's soldiers. His arrogance in not allowing BBC editors to see his script. in advance worked, not for the first time, to his detriment. His defenders said he could not help living with the 1930s values he had acquired and somewhat dubiously went on to cite "gallantry" as chief among them. Cooke's raconteur style. encouraged a whole generation of BBC men to think of themselves as more important than the story. His treacly tones were the model for the regular World Service reports From Our Own Correspondent, known as FOOCs in the business. They may yet be his epitaph.
At the beginning of the passage the writer sounds critical of
听力原文： At the theater, she disrupts the first act as she climbs over your knees toward her seat. When your doorbell rings on a Saturday night, long after your other guests have begun eating, you know he has arrived for dinner. At work, you don't expect her at your 9:00 a.m. meeting.
They are the latecomers and it doesn't matter if they wear a watch or use an alarm dock. Lateness is their way of life.
Chronic lateness has spoiled friendships, and a habit that has caused people to lose their job. Why, then, are so many people late？
"Not arriving on time can be a form. of avoidance," says Dr. Richard Kravitz, a psychiatrist at Yale New Haven Medical Center in Connecticut. "You are late for a party, or coming home from work, because you don't want to be where you're supposed to be." Other reasons for chronic lateness are more complex. Dr. Kravitz suggests that some latecomers know that their lateness will cause anger, and this serves their deep need to be punished. Alternatively, some latecomers have a tendency to force someone to wait, which is a way of expressing anger or resentment.
As for those of us who wait, if we can set limits as to how long we will stay before leaving when appropriate, we can make our anger known. And though it is true that being prompt can be as compulsive as being late, Shakespeare advised this: "Better three hours too soon than a minute too late."
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