单选题When Tasuma first came to the U. S. from Japan, he wasn't sure he could ______ into American culture, but after a few months, he felt at home here.

单选题Can you describe the ______ by which sugar is obtained from sugar beet?

单选题Vingo sat there, never ______, his dusty face ______ his age. A．moving; masked B．moved; masked C．moving; masking D．moved; to be masked

单选题According to the passage, what does social capital refer to?

单选题There is no creature that does not need sleep or complete rest every day. If you want to know why, just try going without sleep for a long period of time. You will discover that your mind and body would become too tired to work properly. You would become irritable and find it hard to think clearly or concentrate on your work. So sleep is quite simply the time when the cells of your body recover from the work of the day and build up supplies of energy for the next period of activity. One of the things we all know about sleep is that we are unconscious in sleep. We do not know what is going on around us. But that doesn"t mean the body stops all activity. The important organs continue to work during sleep, but most of the body functions are slowed down. For example, our breathing becomes slower and deeper. The heart beats more slowly, and the blood pressure is lower. Our arms and legs become limp (柔软的) and muscles are at rest. It would be impossible for our body to relax to such an extent if we were awake. So sleep does for us what the most quiet rest can not do. Your body temperature becomes lower when you are asleep, which is the reason people go to sleep under some kind of covers. And even though you are unconscious, many of your reflexes (反射动作) still work. For instance, if someone tickles (使觉得痒) your foot, you will put it away in your sleep, or even brush a fly from your forehead. You do these things without knowing it.

单选题Which of these is the best summary of the passage?

单选题In colonial America, where did silversmiths usually obtain the material to make silver articles?

单选题If the man is only interested in your appearance, ______ just shows how shallow he is.

单选题Football is the most popular sport (21) the fall in the United States. The game originated as a(an) (22) sport more than seventy-five years ago. It is still played by almost every college and university in the country, and the football stadiums of some of the largest universities (23) as many as g0,000 people. The game is not the same (24) European football. There are eleven players in each team, and (25) in padded uniforms because the game is rough and injuries are likely to occur. The (26) of the game is to carry or throw from one per- son to another the ball across the opponent's goal, or scoring line. He (27) has not attended a large college football game (28) missed one of the most colorful aspects of American college life. (29) the two halves of the game, the playing field if taken over by the bands (乐队) of the rival institutions, (30) take turns doing intricate marches and executing interesting formations. The student spectators are led in cheering for their team by trained, uniformed student cheerleaders, (31) are pretty girls. Outstanding high school football players (32) usually encouraged to come to a college and university (33) offers of scholarships and free room and board. Football is (34) popular and the urge to win is so keen, that many colleges actively (35) outstanding players for their student body. Attendance at football games is so large that it is not unheard of for a college or university to finance its entire athletic program from ticket sales.

单选题I ______ a lot of English while I was in England.

单选题This is only a______ agreement: nothing serious concluded yet by far.(2006年清华大学考博试题)

单选题______ he studies hard, he will never pass the examination,A. IfB. UnlessC. Even ifD. Even though

单选题 This is an approach to quality improvement based on the statistical work of Joseph Juran, one of two American pioneers of quality management in Japan. Sigma is a Greek letter used in mathematics to denote standard deviation, a statistical measure of the extent to which a series of numbers or readings deviates from its mean. One Sigma indicates a wide scattering of the readings. If the mean is the required quality standard of a particular process or product, then One Sigma quality is not very good. The higher the number, the closer the readings come to total perfection. At the Six Sigma level, there are only 3.4 defects per million. This may sound complicated, but in practice it has proved a popular way for managers to put quality management into effect. One of its great advantages is that it avoids the idea of aiming for "zero defects", or total perfection-a frighteningly inaccessible goal for most. It presents a system for improving quality gradually. Companies or operational groups move step-by-step up the Sigma ladder, the ultimate goal being to reach the Six Sigma state-still just short of perfection. Reasonably unsophisticated computer programs do the necessary calculations when fed with data on the goals (the specifications of the perfect product or process) and the organization's actual achievements. Six Sigma sounds like some sort of secret coven. Its advocates insist that it is no such thing. But it has certain attributes of the exclusive society. Anyone in an organization who goes on a basic training course for a Six Sigma program is called a Green Belt. Anyone who is given the full-time job of leading a team that is embarking on a Six Sigma exercise is given further training and is called a Black Belt. Beyond this there are a special few who are trained even more, and they are called Master Black Belts. Their role is to champion the exercise throughout the organization and to watch over the Black Belts and ensure that {{U}}they{{/U}} are consistently improving the quality of their team's output. Pioneered in the United States by Motorola in the 1980s, Six Sigma became hugely popular in the 1990s after Jack Welch adopted it at General Electric. To achieve Six Sigma quality at GE, a process must produce no more than 3.4 defects per million "opportunities". An opportunity is defined as "a chance for non-conformance, or not meeting the required specifications". The company says: "Six Sigma has changed the DNA of GE. It is now the way we work-in everything we do and in every product we design".

单选题Would you please call me up later ______ they decide to go camping? A. that B. for C. whether D. when

单选题Education in Russia and the other new countries faces especially daunting obstacles be cause the struggling economies of these nations often provide insufficient funds for educa tion.

单选题Color-blind people find it difficult to ______ between red and green.

单选题The______is an important form of British literature in the 15th century.

单选题In 1807 Noah Webster began his greatest work, An American Dictionary of the English Language. In preparing the work, he devoted ten years to the study of English and its relationship to other languages, and seven more years to the writing itself. Published in two volumes in 1828, An American Dictionary of the English Language has become the recognized authority (权威) for usage in the United States. Webster's purpose in writing it was to show that the American language was developing distinct meanings, pronunciations, and spellings from those of British English. He is responsible for advancing simplified spelling forms: "develop" instead of the British form "develope"; "theater" and "center" instead of "theatre" and "centre"; "color" and "honor" instead of "colour" and "honour".

单选题He slept in the ______ of the trees on such a hot day.

单选题{{B}}Passage Five{{/B}} More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap big reward. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment. It's easy for computer crimes to go undetected if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a glowing recommendation from his former employers. Of course, we have no statistics on crimes that go undetected. But it's disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommonly bad luck. Unlike other lawbreakers, who must leave the country, commit suicide, or go to jail, computer criminals sometimes escape punishment, demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits. All too often, their demands have been met. Why? Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court of how he juggled (诈骗) the most confidential (保密) records right under the noses of the company's executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.