单选题The fact ______ the flu has been brought to every continent is disturbing.

单选题Whether the eyes are "the windows of the soul" is debatable, that they are intensely important in interpersonal communication is a fact. During the first two months of a baby"s life, the stimulus that produces a smile is a pair of eyes. The eyes need not be real: a mask with two dots will produce a smile. Significantly, a real human face with eyes covered will not motivate a smile, nor will the sight of only one eye when the face is presented in profile. This attraction to eyes as opposed to the nose or mouth continues as the baby matures. In one study, when American four-year-olds were asked to draw people, 75 percent of them drew people with mouths, but 99 percent of them drew people with eyes. In Japan, however, where babies are carried on their mother"s back, infants do not acquire as much attachment to eyes as they do in other cultures. As a result, Japanese adults make little use of the face either to encode (把……编码) or decode(理解) meaning. In fact, Argyle reveals that the "proper place to focus one"s gaze during a conversation in Japan is on the neck of one"s conversation partner." The role of eye contact in a conversational exchange between two Americans is well defined; speakers make contact with the eyes of their listener for about one second, then glance away as they talk; in a few moments they re-establish eye contact with the listener or reassure the selves that their audience is still attentive, then shift their gaze away once more. Listeners, meanwhile, keep their eyes on the face of the speaker, allowing themselves to glance away only briefly. It is important that they be looking at the speaker at the precise moment when the speaker reestablishes eye contact: if they are not looking, the speaker assumes that they are disinterested and either will pause until eye contact is resumed or will terminate the conversation. Just how critical this eye maneuvering is to the maintenance of conversational flow becomes evident when two speakers are wearing dark glasses: there may be a sort of traffic jam of words caused by interruption, false starts, and unpredictable pauses.

单选题Though being single in her early thirties, she never thinks that it is high time that she ______ married.

单选题After Michael ________ his father’s company, he discovered that he was more skilled than his father in managing the business.

单选题 The usual image of studying is of someone peering into a book, hoping to learn something. Study is a dull word for {{U}} {{U}} 1 {{/U}} {{/U}}fascinating ways to {{U}} {{U}} 2 {{/U}} {{/U}}the world of learning. A 5-year-old child must study to learn the alphabet. A team member in the National Football League must study the plays {{U}} {{U}} 3 {{/U}} {{/U}}by the coaches. All the practice sessions a pianist endures are {{U}} {{U}} 4 {{/U}} {{/U}}forms of study. The success of every learning experience in school or in a career depends on some {{U}} {{U}} 5 {{/U}} {{/U}}of studying, and not all studying is done with books. The biologist must inspect nature firsthand. The airline {{U}} {{U}} 6 {{/U}} {{/U}}must learn about wind and other weather {{U}} {{U}} 7 {{/U}} {{/U}}.Soldiers must be trained to {{U}} {{U}} 8 {{/U}} {{/U}}under the most difficult conditions.{{U}} {{U}} 9 {{/U}} {{/U}}, for most persons the reading of useful books is a{{U}} {{U}} 10 {{/U}} {{/U}}step to learning. The study that underpins learning is a lifelong pursuit. Although memory is vital to all learning, study is not {{U}} {{U}} 11 {{/U}} {{/U}}of memory only. Arithmetic problems, for instance, are mainly practice in using numbers in ways already learned. Reading, spelling, and writing are skill subjects too and require practice. By repeated effort,{{U}} {{U}} 12 {{/U}} {{/U}}in these subjects is increased {{U}} {{U}} 13 {{/U}} {{/U}}typing and driving are. They are tool subjects, or stepping stones, {{U}} {{U}} 14 {{/U}} {{/U}}the learner increases knowledge and expands it into other areas. The sciences, language arts, and social studies are skill subjects only in part. They also give the learner practice in understanding the {{U}} {{U}} 15 {{/U}} {{/U}}between ideas and events, or cause and effect. Some facts and skills are learned by taking part in activities. Some are learned by {{U}} {{U}} 16 {{/U}} {{/U}}what others do or by reading about {{U}} {{U}} 17 {{/U}} {{/U}}has happened. In every {{U}} {{U}} 18 {{/U}} {{/U}}a background of information from experience or study can help speed the learning process. The textbook is the most common {{U}} {{U}} 19 {{/U}} {{/U}}for school use. It establishes the {{U}} {{U}} 20 {{/U}} {{/U}}by which learning proceeds. It frequently includes practice problems and activities that allow the learner to use what has been learned.

单选题People are more likely to stay ______ 30 miles of ______ they were born.

单选题They insisted that the device ______ under operating conditions. A. would be tested B. be tested C. to tested D. be testing

单选题Long hours at the screen can cause aching eyes, blurred vision and headaches, experts say. In fact, eyestrain surpasses even wrist pain as the top physical complaint among heavy computer users. When peering into the computer screen, the eye"s focusing muscle is at constant tension. Like any muscle, it feels sore when overloaded. And when someone spends a lot of time looking at something close, the eye muscle can get stuck on the near-focus setting and have difficulty relaxing, leaving the person temporarily nearsighted, a condition called accommodative spasm(痉挛) that can last seconds or hours. This is why after looking at a monitor all day, some computer workers complain that their distance vision is bluffed when they attempt to drive home. The letters on the screen are not as clearly defined as on a printed page. Take a magnifying glass to your monitor and you"ll see the letters, each made up of pinpoint sources of light, have no sharp edges. But those liquid crystal display (LCD) monitors, like those found on laptop computers, are easier on the eyes because they display sharper images. And studies have shown that when people are working on a computer, their rate of blinking goes down by two-thirds, which can result in dry, stinging eyes. This is especially a problem for contact-lens wearers.

单选题He was taken down to another room, ______ he found a wounded soldier who was dying.

单选题This message is very important. Can you make sure that Helen ______ it?

单选题Exchange a glance with someone, then look away. Do you realize that you have made a statement? Hold the glance for a second longer, and you have made a different statement. Hold it for 3 seconds, and the meaning has changed again. For every social situation, there is a permissible time that you can hold a person"s gaze without being intimate, rude, or aggressive. If you are on an elevator, what gaze-time are you permitted? To answer this question, consider what you typically do. You very likely give other passengers a quick glance to size them up (打量) and to assure them that you mean no threat. Since being close to another person signals the possibility of interaction. You need to emit a signal telling others you want to be left alone. So you cut off eye contact, what sociologist Erving Goffman (1963) calls "a dimming of the lights." You look down at the floor, at the indicator lights, anywhere but into another passenger"s eyes. Should you break the role against staring at a stranger on an elevator, you will make the other person exceedingly uncomfortable, and you are likely to feel a bit strange yourself. If you hold eye contact for more than 3 seconds, what are you telling another person? Much depends on the person and the situation. For instance, a man and a woman communicate interest in this manner. They typically gaze at each other for about 3 seconds at a time, and then drop their eyes down for 3 seconds, before letting their eyes meet again. But if one man gives another man a 3-second-plus stare, he signals, "I know you", "I am interested in you," or "You look peculiar and I am curious about you." This type of stare often produces hostile feelings.

单选题The ______ crown jewels are kept in the Tower of London.

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单选题Mark is a diligent student and always ______ to learn anything new to him. A. interesting B. eager C. active D. likely

单选题She has a poor ______ of balance.

单选题I"m reading his ______ novel.

单选题Day and night he worked ______ in his laboratory.

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单选题The ______ was conducted to find out how many people prefer butter.

单选题By the end of this year Mr. Smith ______ in our company for exactly three years.