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[单选题]

______often produces surprises.

A.Education

B.A chance conversation

C.Schooling

D.Teacher

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更多“______often produces surprises…”相关的问题

第1题

Life on earth【56】many shapes and surely of the strangest is a newly discovered【57】whose ab

ility to change the bodily (身体的)【58】is so dramatic that some biologists【59】disbelief when they first heard about it.

Sometimes, the【60】creatures seems to behave like a green plant, calmly photosynthesizing (进行光合作用)【61】the sun. These organisms can transform. themselves into【62】monsters,【63】within minutes into a block-like form. at least 100 times【64】

In its free-swimming【65】, the organism feeds on fish flesh, but if the supply【66】, the creature simply goes into suspended (暂停的，中止的) condition【67】a protective shell around itself and dropping to the bottom【68】it can wait【69】years. When more fish happen【70】, the creature senses their presence, breaks out of its shell and swims free again.

The species would be【71】more than a scientific curiosity, a marvel of nature,【72】for one fact. When the organism detects fish and【73】out, it produces a powerful【74】that kills the fish, often【75】minutes, sometimes by the millions.

(56)

A．saves

B．makes

C．brings

D．takes

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第2题

The oceans are the main source of humidity, but plants also pour moisture into the air. In

one day, a five-acre forest can release 20,000 gallons of water, enough to fill an average swimming, pool. A dryer extracts moisture from wet clothes, adding to humidity. Even breathing contributes to this sticky business. Every time we exhale, we expel nearly one pint of moist air into the atmosphere.

Using sophisticated measuring devices, science is learning more and more about the far-reaching and often surprising impact humidity has on all of us.

Two summers ago angry callers phoned American Television and Communications Corp.'s cable-TV operation in northeastern Wisconsin, complaining about fuzzy pictures and poor reception. "What happened," said the chief engineer, "was that the humidity was interfering with our signals." When a blast of dry air invaded the state, the number of complaints dropped sharply.

Humidity plays hob with our mechanical world as well. Water condensation on the playing beads and tapes of videocassette recorders produces a streaky picture. Humidity shortens the life of flashlight and smoke-detector batteries. When the weather gets sticky, the rubber belts that power the fan, air conditioner and alternator under the hood of our cars can get wet and squeak.

Moisture also causes pianos to go out of tune, often in no time flat. At the Wolf Trap Farm Park for the Performing Arts in Vienna, where pianos are tuned twice a day during the summer concert season. Often a tuner stands in the wings, ready to make emergency adjustments during performances.

Humidity speeds the deterioration of treasured family photos and warps priceless antiques. Your home's wooden support beams, doors and window framers absorb extra moisture and expand-swelling up to three percent depending on the wood, its grain and the setting.

Too much moisture promotes blight that attacks potato and green-bean crops—adding to food costs. It also causes rust in wheat, which can affect grain-product prices.

Humidity affects our health, as well. We get more migraine headaches, ulcer attacks, blood clots and skin rashes in hot, humid weather. Since 1987, the Health, Weight and Stress Clinic at Johns Hopkins Hospital in Baltimore has tested over 1700 patients for responses to high humidity. They have reported increased dizziness, stomachaches, chest pains, cramps, and visual disturbances such as double and blurred vision.

The main idea of the passage is about ______.

A．the main source of humidity

B．the impact of humidity on our world and ourselves

C．how humidity affect our life

D．the damage humidity has done to our world

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第3题

Shopping for clothes is not the same experience for a man as it is for a woman. A man goes

shopping because he needs something. His purpose is settled and decided in advance. He knows what he wants, and his objective is to find it and buy it; the price is a secondary consideration. All men simply walk into a shop and ask the assistant for what they want. If the shop has it in stock, the salesman promptly produces it, and the business of trying it on proceeds at once. All being well, the deal can be and often is completed in less than five minutes, with hardly any chat and to everyone's satisfaction.

For a man, slight problems may begin when the shop does not have what he wants, or does not have exactly what he wants. In that case the salesman, as the name implies, tries to sell the customer something else, he offers the nearest he can to the article required. No good salesman brings out such a substitute bluntly; he does so with skill and polish; "I know this jacket is not the style. you want, sir, but would you like to try it for size. It happens to be the color you mentioned. " Few men have patience with this treatment, and the usual response is :" This is the right color and may be the right size, but I should be wasting my time and yours by trying it on.

Now how does a woman go about buying clothes？ In almost every respect she does so in the opposite way. Her shopping is not often based on need. She has never fully made up her mind what she wants, and she is only" having a look round". She is always open to persuasion; indeed she sets great store by what the saleswoman tells her, even by what companions tell her. She will try on any number of things. Uppermost in her mind is the thought of finding something that everyone thinks suits her. Contrary to a lot of jokes, most women have an excellent sense of value when they buy clothes. They are always on the lookout for the unexpected bargain. Faced with a roomful of dresses a woman may easily spend an hour going from one rail to another, to and fro, often retracing her steps, before selecting the dresses she wants to try on. It is a laborious process, but apparently an enjoyable one. Most dress shops provide chairs for the waiting husbands.

According to the passage, when a man is buying clothes, ______.

A．he buys cheap things, regardless of quality

B．he chooses things that others recommend

C．he does not mind how much he has to pay for the right things

D．he buys good quality things, so long as they are not too dear

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第4题

Exchange a glance with someone, and then look away. Do you realize that you have made a st

atement？ Hold the glance for a second longer, and you have made a different statement. Hold it for three seconds, and the meaning has changed again. For every social situation, there is 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 are 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, which 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 rule 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 three 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 three seconds at a time, and then drop their eyes down for three seconds, before letting their eyes meet again. But if one man gives another man a three-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.

It can be inferred from the first paragraph that______.

A．every glance has its significance

B．staring at a person is an expression of interest

C．a gaze longer than three seconds is unacceptable

D．a glance conveys more meaning than words

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第5题

__________。 [A]poses [B]produces [C] makes [D] brings

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第6题

Part ADirections: Read the following four texts. Answer the questions below each text by c

Part A

Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)

Whether or not animals feel is not altogether an easy question to answer. A human being has direct awareness only of the pains which he himself suffers. Our knowledge of the pains even of other human beings is only an inference from their words, and to a lesser extent their behaviors. Animals cannot tell us what they feel. We can, of course, study their bodily reactions to the kind of stimuli which would be painful to human beings and this has often been done. When such stimuli are applied to animals, their pupils dilate, their pulse rate and blood pressure rise, they may withdraw the stimulated limb and they may make struggling movements. Nevertheless it has been pointed out that none of these reactions can safely be taken as indications that the animal experiences pain because they can all be evoked when the parts of the body stimulated have been isolated from the higher nervous centres. Furthermore, when disease produces such an isolation in human beings the corresponding stimuli are painless. We must therefore look for other evidence as the capacity of animals to experience pain.

Basically, all the nervous elements which underlie the experience of pain by human beings are to be found in all mammalian vertebrates at least; this is hardly surprising as pain is a response to a potentially harmful stimulus and is therefore of great biological importance for survival. Is there any reason, then, for supposing that animals, though equipped with all the necessary neurological structures, do not experience pain？ Such a view would seem to presuppose a profound qualitative difference in the mental life of animals and men. The difference between the human and subhuman nervous system lies chiefly in the much greater development of the human forebrain. This would be significant in the present context only if there were reason to believe that it alone was correlated with the occurrence of conscious experiences. But much of our knowledge of the nervous regulation of consciousness is derived from experiments on animals.

In everyday life we take it for granted that animals see and hear, and there seems no reason to suppose that they do not feel pain. So, while the reactions of the pupils, pulse rate and blood pressure mentioned above can in exceptional circumstances occur without the conscious experience of pain, it seems likely that in the intact animal they are indications that pain is being experienced.

Our knowledge of the pains animals feel can be obtained through

A．an inference from their words.

B．study of their direct awareness of the pains.

C．study of their reaction to pain causing stimuli.

D．an inference from their behavior.

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第7题

North America produces a great deal more wheat______.A．as South AmericaB．than does South A

North America produces a great deal more wheat______.

A．as South America

B．than does South America

C．like South America does