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When attempting to free an anchor jammed in the hawsepipe，the simplest method of freeing it may be（）.
A . Starting the disengaged windlass at high speed
B . Rigging a bull rope to pull it out
C . To grease the hawsepipe
D . To pry it loose with a short piece of pipe
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If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.
A . low compression
B . failure of the fuel pump to discharge fuel
C . incorrect timing of fuel pump
D . turning gear being still o
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According to the passage, it may soon be possible__________
A . to make something as good as human skin
B . to produce drugs without side effects
C . to transplant human organs
D . to make artificial hearts and eyes
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If the engine does start on air, but combustion does not immediately begin, the cause may be （）.
A . failure of the fuel pumps
B . starting air pressure too low
C . stop valve in air line closed
D . the turning gear still engaged
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I don't know the park, but it's（）to be quite beautiful.
A . said
B . told
C . spoken
D . talked
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It may be that，under the contract，freight was made（）to a third person.
A . capable
B . payable
C . reasonable
D . probable
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Goods may be dangerous not merely by reason of the fact that they may endanger the safety of the vessel，but also because they are liable to cause the vessel to be（）.
A . despatched
B . detained
C . detected
D . delivered
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Changes may be requested by any stakeholder involved with the project, but changes can be authorized only by（）
A . executive IT manager
B . projectmanger
C . change control board
D . projectsponsor
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The thesis may at first strike one as extreme, but evidence exists to support it.
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When your speech call on the audience to do something, a direct question may be effective. It not only creates a common bond between speaker and audience, but also transfers to the audience some of the responsibility for achieving the speaker’s goals.
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The causes may be unrelated to each other, but all are ___to the effect.
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● Changes may be requested by any stakeholder involved with the project, but changes can be authorized only by (73)．
（73）
A．executive IT manager
B．project manger
C．change control board
D．project sponsor
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If the engine does start on air, but combustion does not immediately begin, the cause may not be（）
A．low compression
B．failure of the fuel pump to discharge fuel
C．incorrect timing of fuel pump
D．turning gear being still o
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By which of the following statements may the dichotomy between government policy and its implementation be described？
A．There's many a slip between the cup and the lip.
B．You can lead a horse to water but you cannot make him drink.
C．All that glitters is not gold.
D．All of the above apply in various ways to the dichotomy.
此题为多项选择题。
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A meager diet may give you health and long life, but it's not much fun—and it might not even be necessary. We may be able to hang on to most of that youthful vigor even if we don't start to diet until old age.
Stephen Spindler and his colleagues from the University of California at Riverside have found that some of an elderly mouse's liver genes can be made to behave as they did when the mouse was young simply by limiting its food for four weeks. The genetic rejuvenation won't reverse other damage caused by time for the mouse, but could help its liver metabolize drugs or get rid of toxins.
Spindler's team fed three mice a normal diet for their whole lives, and fed another three on half-rations. Three more mice were switched from the normal diet to half-feed for a month when they were 34 months old—equivalent to about 70 human years.
The researchers checked the activity of 11,000 genes from the mouse livers, and found that 46 changed with age in the normally fed mice. The changes were associated with things like inflammation and free radical production—probably bad news for mouse health. In the mice that had dieted all their lives, 27 of those 46 genes continued to behave like young genes. But the most surprising finding was that the mice that only started dieting in old age also benefited from 70 percent of these gene changes.
"This is the first indication that these effects kick in pretty quickly," says Huber Warner from the National Institute on Aging near Washington, D.C..
No one yet knows if calorie restriction works in people as it does in mice, but Spindler is hopeful. "There's attracting and tempting evidence out there that it will work," he says.
If it does work in people, there might be good reasons for rejuvenating the liver. As we get older, our bodies are less efficient at metabolizing drugs, for example. A brief period of time of dieting, says Spindler, could be enough to make sure a drug is effective.
But Spindler isn't sure the trade-off is worth it. "The mice get less disease, they live longer, but they're hungry," he says. "Even seeing what a diet does, it's still hard to go to a restaurant and say: 'I can only eat half of that'."
Spindler hopes we soon won't need to diet at all. His company, Life Span Genetics in California, is looking for drugs that have the effects of calorie restriction.
According to the passage, which of the following is NOT true？
A．Eating less than usual might make us live longer.
B．If we go on a diet when old, we may keep healthy.
C．Dieting might not be needed. ~
D．We have to begin dieting from childhood.
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It may be inferred from the passage that________.
A．customer service in Israel is now improving
B．wealthy Israeli customers are hard to please
C．the tourist industry has brought chain stores to Israel
D．Israeli customers prefer foreign products to domestic ones
此题为多项选择题。
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The situation described in the report__________ terrible， but it may not happen．
A.inclines
B.maintains
C.sounds
D.remains
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I think her condition is improving but it may just be ________ thinking.
A willful
B wishful
C hopeful
D tactful
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It can be inferred from the text that the crime occurrence may be associated with______.
A．the trends which can be tracks
B．the deployment of the blue line
C．the overwhelming presence of criminals in London
D．the number of the days of terrorist attacks
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Most people have experienced the feeling, after a taxing mental work-out, that they cannot be bothered to make any more decisions. If they are forced to, they may do so intuitively, rather than by reasoning. Such apathy is of ten put down to tiredness; but a study published recently in Psychological Science suggests there may be more to it than that. Whether reason or intuition is used may depend simply on the decision-maker's blood-sugar level—which is, itself, affected by the process of reasoning.
E.J. Masicampo and Roy Baumeister of Florida State University discovered this by doing some experiments on that most popular of laboratory animals, the impoverished undergraduate. They asked 121 psychology students who had volunteered for the experiment to watch a silent video of a woman being interviewed that had random words appearing in bold black letters every ten seconds along the perimeter of the video. This was the part of the experiment intended to be mentally taxing. Half of the students were told to focus on the woman, to try to understand what she was saying, and to ignore the words along the perimeter. The other half were given no instructions. Those that had to focus were exerting considerable serf-control not to look at the random words.
When the video was over, haft of each group was given a glass of lemonade with sugar in it and half was given a glass of lemonade with sugar substitute. Twelve minutes later, when the glucose from the lemonade with sugar in it had had time to enter the students' blood, the researchers administered a decision-making task that was designed to determine if the participant was using intuition or reason to make up his mind.
The students were asked to think about where they wanted to live in the coming year and given three accommodation options that varied both in size and distance from the university campus. Two of the options were good, but in different ways: one was far from the campus, but very large; the other was close to campus, but smaller. The third option was a decoy, similar to ope of the good options, but obviously not quite as good. ff it was close to campus and small, it was not quite as close as the good close option and slightly smaller, if it was far from campus and large, it was slightly smaller than the good large option and slightly farther away.
Psychologists have known for a long time that having a decoy option in a decision-making task draws people to choose a reasonable option that is similar to the decoy. Dr. Masicampo and Dr. Baumeister suspected that students who had been asked to work hard during the video and then been given a drink without any sugar in it would be more likely to rely on intuition when making this decision than those from the other three groups. And that is what happened; 64% of them were swayed by the decoy. Those who had either not had to exert mental energy during the showing of the video or had been given glucose in their lemonade, used mason in their decision-making task and were less likely to be swayed by the decoy.
It is not clear why intuition is independent of glucose. It could be that humans inherited a default nervous system from other mammals that was similar to intuition, and that could make snap decisions about whether to fight or flee regardless of how much glucose was in the body.
Whatever the reason, the upshot seems to be that thinking is, indeed, hard work. And important decisions should not be made on an empty stomach.
The word "taxing" in the fast paragraph means
A．tiring.
B．imposing taxation.
C．paying taxation.
D．relaxing.
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This book may not change your life. But if you have a tendency to be messy and have already broken your new year resolutions to be neater in future, it will certainly make you feel better about your natural inclinations. Untidiness, hoarding, procrastination and improvisation are not bad habits, the authors argue, but often more sensible than meticulous planning, storage and purging of possessions.
That is because the tidiness lobby counts the benefits of neatness, but not its costs. A rough storage system (important papers close to the keyboard, the rest distributed in loosely related piles on every flat surface) takes very little time to manage. Filing every bit of paper in a precise category, with colour-coded index tabs and a neat system of cross-referencing, will certainly take longer. And by the end, it may not save any time. Your reviewer's office is easily the most untidy in The Economist (not entirely his own work, it should be said, thanks to the heroic efforts of his even untidier office-mate). But when it comes to managing information, there seems to be no discernible difference in the end result.
The authors of this book trawl the furthest reaches of psychology, management studies, biology and physics to show why a bit of disorder is good for you. Chiefly, it creates much more room for coincidence and serendipity. Alexander Fleming discovered penicillin because he was notoriously untidy, and didn't clean a Petri dish, thus allowing fungal spores to get to work on bacteria. He remarked wryly on visiting a colleague's spotless lab: "no danger of mould here".
It can also help make sense of things. Hearing depends on random movement of molecules: when they coincide with sounds from outside, they are strong enough to stimulate the inner ear. A bit of background noise on the phone enables our ears to filter out echoes. A slightly mushy photograph can be easier to understand. Music and art depend on mess.
Procrastination makes sense too. America’s Marine Corps, the authors repeat (several times), never makes detailed plans in advance. Leaving important things to the last minute reduces the risk of wasting time on things that may ultimately prove not important at all.
The authors are witheringly contemptuous of the bogus equation of tidiness and morality—for example in corporate "clean desk" policies. Disorder and creativity are so closely linked that any employer who penalizes the first sacrifices the second, they argue. America's professional organizers, a thriving and lucrative cult of tidiness coaches, are merchants of guilt, not productivity boosters.
It's all fine, up to a point. But the book has two weaknesses. One is that it overstates the case. The case for tidiness in some environments—surgery, a dinner table or income tax returns—is really overwhelming. The other is that the book is a bit repetitive and disorganized. Even readers who love mess in their own lives don't necessarily like it in others.
Paraphrase the sentence "the tidiness lobby counts the benefits of neatness, but not its costs". (para. 2)
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It may have been a sharp criticism of the pupil’s technical abilities in writing, but
It may have been a sharp criticism of the pupil’s technical abilities in writing, but it was also a sad reflection on the teacher who had omitted to read the essay, which contained some beautiful expressions of the child’s deep feelings.
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It is no doubt a pleasant thing to have a library left you. The present writer will disclaim no such legacy, but hereby undertakes to accept it, however dusty. But good as it is to inherit a library, it is better to collect one. Each volume then, however lightly a strangers eye may roam from shelf to shelf, has its own individuality, a history of its own. You remember where you got it, and how much you gave for it: and your word may safely be taken for the first of these facts, but not for the second. The man who has a library of his own collection is able to contemplate himself objectively, and is justified in believing in his own existence. No other man but he would have made precisely such a combination as his. Had he been in any single respect different from what he is, his library, as it exists, never would have existed. Therefore, surely he may exclaim, as in the gloaming he contemplates the backs of his loved ones, "They are mine, and I am theirs. "
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Some people may have been daunted by the task because of the difficulties it brings, but I do not know of______.
A．them doing so
B．any having done so
C．their doing like that
D．any doing that way
