精品资料1994历年考研英语真题完形填空及新题型.2005年全国硕士研究生入学统一考试英语试题Use of EnglishThe human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, _1_ this is largely because, _2_ animals, we stand upright. This means that our noses are _3_ to perceiving those smells which float through the air, _4_ the majority of smells which stick to surfaces. In fact, _5_, we are extremely sensitive to smells, _6_ we do not generally realize it. Our noses are capable of _7_ human smells even when these are _8_ to far below one part in one million.Strangely, some people find that they can smell one type of flower but not another, _9_ others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate _10_ smell receptors in the nose. These receptors are the cells which sense smells and send _11_ to the brain. However, it has been found that even people insensitive to a certain smell _12_ can suddenly become sensitive to it when _13_ to it often enough.The explanation for insensitivity to smell seems to be that brain finds it _14_ to keep all smell receptors working all the time but can _15_ new receptors if necessary. This may _16_ explain why we are not usually sensitive to our own smells we simply do not need to be. We are not _17_ of the usual smell of our own house but we _18_ new smells when we visit someone elses. The brain finds it best to keep smell receptors _19_ for unfamiliar and emergency signals _20_ the smell of smoke, which might indicate the danger of fire.1.A although B as C but D while2.A above B unlike C excluding D besides3.A limited B committed C dedicated D confined4.A catching B ignoring C missing D tracking5.A anyway B though C instead D therefore6.A even if B if only C only if D as if7.A distinguishingB discoveringC determining D detecting8.A diluted B dissolved C determining D diffused9.A when B since C for D whereas10.A unusual B particular C unique D typical11.A signs B stimuli C messages D impulses12.A at first B at allC at large D at times13.A subjected B leftC drawn D exposed14.A ineffective B incompetentC inefficient D insufficient15.A introduce B summonC trigger D create16.A still B alsoC otherwise D nevertheless17.A sure B sickC aware D tired18.A tolerate B repelC neglect D notice19.A available B reliableC identifiable D suitable20.A similar to B such asC along with D aside from2006年全国硕士研究生入学统一考试英语试题The homeless make up a growing percentage of Americas population. _1_ homelessness has reached such proportions that local government cant possibly _2_. To help homeless people _3_ independence, the federal government must support job training programs, _4_ the minimum wage, and fund more low-cost housing._5_ everyone agrees on the numbers of Americans who are homeless. Estimates _6_ anywhere from 600,000 to 3 million. _7_ the figure may vary, analysts do agree on another matter: that the number of the homeless is _8_. One of the federal governments studies _9_ that the number of the homeless will reach nearly 19 million by the end of this decade.Finding ways to _10_ this growing homeless population has become increasingly difficult. _11_ when homeless individuals manage to find a _12_ that will give them three meals a day and a place to sleep at night, a good number still spend the bulk of each day _13_ the street. Part of the problem is that many homeless adults are addicted to alcohol or drugs. And a significant number of the homeless have serious mental disorders. Many others, _14_ not addicted or mentally ill, simply lack the everyday _15_ skills need to turn their lives _16_. Boston Globe reporter Chris Reidy notes that the situation will improve only when there are _17_ programs that address the many needs of the homeless. _18_ Edward Blotkowsk, director of community service at Bentley College in Massachusetts, _19_ it, “There has to be _20_ of programs. What we need is a package deal.”1.A Indeed B Likewise C Therefore D Furthermore2.A stand B cope C approve D retain3.A in B for C with D toward4.A raise B add C take D keep5.A generally B almost C hardly D not6.A cover B change C range D differ7.A Now that B Although C Provided D Except that8.A inflating B expanding C increasing D extending9.A predicts B displays C proves D discovers10.A assist B track C sustain D dismiss