单选题Most of the butterflies perish in the first frosts of autumn. A. die B. disappear C. migrate D. vanish

单选题Do you believe these two intimate friends used to be enemies?A. bearableB. internalC. closeD. believable

单选题That student is discourteous; he grumbles no matter how one tries to please him.

单选题Human Nose The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, (51) this is largely because, (52) animals, we stand upright. This means that our noses are (53) to perceiving those smells which float through the air, (54) the majority of smells which stick to surfaces. In fact, (55) , we are extremely sensitive to smells, (56) we do not generally realize it. Our noses are capable of (57) human smells even when these are (58) to far below one part in one million. Strangely, some people find that they can smell one type of flower but not another, (59) others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate (60) smell receptors in the nose. These receptors are the cells which sense smells and send messages to the brain. However, it has been found that even people insensitive to a certain smell (61) can suddenly become sensitive to it when exposed to it often enough. The explanation for insensitivity to smell seems to be that the brain finds it (62) to keep all smell receptors working all the time but can create new receptors if necessary. This may (63) explain why we are not usually sensitive to our own smells--we simply do not need to be. We are not (64) of the usual smell of our own house, but we notice new smells when we visit someone else's. The brain finds it best to keep smell receptors (65) for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.

单选题While we don't agree, we continue to be friends.A. WhoeverB. WhereC. AlthoughD. Whatever

单选题He put forward a plan for improving their working conditionsA. liftingB. convertingC. developingD. bettering

单选题{{U}}Brilliantly{{/U}} colored flowers attract insects.

单选题Accordingly, a number of other methods have been employed

单选题Teaching Poetry No poem should ever be discussed or "analyzed", until it has been read aloud by someone, teacher or student. Better still, perhaps, is the practice of reading it twice, once at the beginning of the discussion and once at the end, so the sound of the poem is the last thing one hears of it. All discussions of poetry are, in fact, preparations for reading it aloud, and the reading of the poem is, finally, the most telling "interpretation" of it, suggesting tone, rhythm, and meaning all at once. Hearing a poet read the work in his or her own voice, on records or on film, is obviously a special reward. But even those aids to teaching can not replace the student and teacher reading it or, best of all, reciting (背诵) it. I have come to think, in fact, that time spent reading a poem aloud is much more important than "analyzing" it, if there isn"t time for both. I think one of our goals as teachers of English is to have students love poetry. Poetry is "a criticism of life", and "a heightening (提升) of life". It is "an approach to the truth of feeling", and it "can save your life". It also deserves a place in the teaching of language and literature more central than it presently occupies. I am not saying that every English teacher must teach poetry. Those who don"t like it should not be forced to put that dislike on anyone else. But those who do teach poetry must keep in mind a few things about its essential nature, about its sound as well as its sense, and they must make room in the classroom for hearing poetry as well as thinking about it.

单选题Oil and Economy Could the bad old days of economic decline be about to return? Since OPEC agreed to supply-cuts in March, the price of crude oil has jumped to almost $26 a barrel, up from less than $10 last December. This near-tripling of oil prices calls up scary memories of the 1973 oil shock, when prices quadrupled, and 1979-1980,when they also almost tripled. Both previous shocks resulted in double-digit inflation and global economic decline. So where are the headlines warning of gloom and doom this time? The oil price was given another push up this week when Iraq suspended oil exports. Strengthening economic growth, at the same time as winter grips the northern hemisphere, could push the price higher still in the short term. Yet there are good reasons to expect the economic consequences now to be less severe than in the 1970s. In most countries the cost of crude oil now accounts for a smaller share of the price of petrol than it did in the 1970s. In Europe, taxes account for up to four-fifths of the retail price, so even quite big changes in the price of crude oil have a more muted effect on pump prices than in the past. Rich economies are also less dependent on oil than they were, and so less sensitive to swings in the oil price. Energy conservation, a shift to other fuels and a decline in the importance of heavy, energy-intensive industries have reduced oil consumption. Software, consultancy and mobile telephones use far less oil than steel or car production. For each dollar of GDP (inconstant prices) rich economies now use nearly 50% less oil than in 1973. The OECD estimates in its latest Economic Outlook that, if oil prices averaged $22 a barrel for a full year, compared with $13 in 1998, this would increase the oil import bill in rich economies by only 0.25%-0.5% of GDP. That is less than one-quarter of the income loss in 1974 or 1980. On the other hand, oil-importing emerging economies-to which heavy industry has shifted--have become more energy-intensive, and so could be more seriously squeezed. One more reason not to lose sleep over the rise in oil prices is that, unlike the rises in the 1970s, it has not occurred against the background of general commodity-price inflation and global excess demand. A sizable portion of the world is only just emerging from economic decline. The Economist" s commodity price index is broadly unchanging from a year ago. In 1973 commodity prices jumped by 70%, and in 1979 by almost 30%.

单选题He have {{U}}made up his mind{{/U}} to give up smoking. A. tried B. attempted C. agreed D. decided

单选题A Sunshade for the Planet Even with the best will in the world, reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time, resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough. Fortunately, if the worst comes to the worst, scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now, that is. A growing number of researchers are taking a fresh look at large-scale "geoengineering" projects that might be used to counteract global warming. "I use the analogy of methadone," says Stephen Schneider, a climate researcher at Stanford University in California who was among the first to draw attention to global warming. "If you have a heroin addict, the correct treatment is hospitalization, and a long rehab. But if they absolutely refuse, methadone is better than heroin." Basically the idea is to apply "sunscreen" to the whole planet. One astronomer has come up with a radical plan to cool Earth; launch trillions of feather-light discs into space, where they would form a vast cloud that would block the sun's rays. It's controversial, but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial, because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century, and that would last for at least a century more.

单选题Norman Blamey is an artist of deep convictions. A. statements B. beliefs C. suggestions D. claims

单选题Please do not hesitate to call me if I can be of further assistance.

单选题Many scientists have been probing psychological problems, A. solving B. exploring C. settling D. handling

单选题Paragraph 5_____

单选题Jean has determined not to attend the party.A. triedB. promisedC. decidedD. attempted

单选题She was {{U}}close{{/U}} to success.

单选题阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 {{B}} The Enormous Egg{{/B}} Dr. Ziemer arrived while we were still staring at the thing in the nest. He jumped out his car and came running out to in the backyard. He was wearing a red coat over his pajamas, and he looked pretty excited. He ran up to the nest and looked in. His eyes opened up wide and he knelt down on the ground and stared and stared. After long while he said softly, "That's it. By George, that's just what it is. "Then he stared for another long time and finally he shook his head and said, "It can't be true, but there it is." He got up off his knees and looked around at us. His eyes were just sparking, he was so excited. He put his hand on my shoulder, and I could feel he was quivering. "An amazing thing's happened, "he said, in a kind of whisper." I don't know how to account for it. It must be some sort of freak biological mix-up that might happen once a thousand years. " "But what is it?" I asked. Dr. Ziemer turned and pointed a trembling finger at the nest. "Believe it or not, you people have hatched out a dinosaur. (恐龙)" We just looked at him. "Sounds incredible, I know," he said, "and I can't explain it, but there it is. I've seen too many Triceratops (三角恐龙)skulls to be mistaken about this one. " "But—but how could it be a dinosaur?" Pop asked. "Goodness gracious!" Morn spluttered. "And right here in our backyard. It doesn't seem hardly right. And on a Sunday, too." Cynthia was pretty interested by now, and kept pecking into the nest and making faces, the way she did when Pop brought a bowl of frogs' legs into the kitchen one time. I guess girls just naturally don't like crawly things too much. To tell the truth, I don't either sometimes but this thing that had just hatched out looked kind of cute to me. Maybe that was because I had taken care of the egg so long. I felt as if the little dinosaur was almost one of the family. We stood around for a long while looking at the strange new thing on the nest, trying to let the idea soak in that we had a dinosaur. After Dr. Ziemer calmed down a little he and Pop tightened up the chicken wire to make sure the little animal wasn't going to crawl out. Dr. Ziemer watched if perhaps she ought not to be taken out before she went out of her mind. Pop figured that it might be a good idea and he picked her up and cut her outside the pen. She acted a little dazed at first, but pretty soon she followed the other hens and began pen. She acted a little dazed at first, but pretty soon she followed the other hens and began scratching for worms like the rest of them.

单选题Mary called me up very late last night.A. shouted at meB. visited meC. telephoned meD. waked me