单选题He was given a present in acknowledgement of his work for the business.

单选题According to the passage, Lyme disease ______.

单选题Most plastics don't______conduct heat and electricity.

单选题The guest {{U}}turned upside down{{/U}} his glass as a signal that he would drink no more.

单选题What does the word "blunder" mean in this passage?

单选题{{B}}Passage 4{{/B}} Children's fears come and go, but most children experience similar types of fears at approximately the same age. For toddlers, the worst fears are often associated with separation and change. Toddlers want their own mommy, daddy, .spoon, chair, and bed. They are profoundly conservative little people. The most daring toddlers feel content if they can hold onto what they already know. Yet, children's fears are a useful index of their development. Fear of strangers appears to be a consequence of their first specific attachment, and its ending is a sign that they have acquired a more inclusive schema of faces and people in general. A child who is afraid of cats but not of rabbits evidently can differentiate one small animal from another. Fear of a particular person implies recognition of that person. Parents can be of assistance, both in overcoming fears and in preventing their development. They can prepare a child through play, stories, and happy prognostications for dealing with new situations that might be overwhelming; give prompt and unstinted comfort after a frightening experience; and devise ways in which a child can be gently and gradually—not abruptly— encouraged to take another look at feared objects and situations. Avoidance of the feared object reinforces the fear, and the fear becomes increasingly intense. Children's fears should be taken seriously, never ridiculed or dismissed as silly or babyish. Often, if the caregiver can get the child to explain exactly what it is that is so frightening, the bald can be reassured. The one thing not to do is to force children into confronting a feared situation before they are ready to do so. Almost all children are afraid of something and, as with adults, these fears are often well- grounded. If we are in an open field during a thunderstorm, we probably have good reason to be afraid of lightning. But occasionally fear of something gets out of control and becomes a phobia. A phobia is an irrational fear of something. A child may be afraid of the dark and hesitate to go up the stairs alone at night. But when the child refuses to remain in a place where there is no light, such as the movies or bus or her bedroom, the fear is taking too great a toll on the child's development. There are many different ways that phobias are treated in children. One of these techniques, commonly referred to as contact desensitization, is a behavioral technique designed to' eliminate unnatural fears. This exact technique was used in one study with fifty snake-avoidant children ranging in age from three to nine years. To see which technique was most effective, the fifty children were divided into five groups: A. Members of the "contact desensitization group" were told about snakes and how to approach them, were encouraged by an adult to approach a snake, were given praise when they tried, and watched one adult hold the snake. B. The "contact desensitization without touch group" received all that group A did, but no one touched the snake. C. The "verbal input plus modeling group" received verbal input and modeling (when the adult touched the snake). D. The "verbal input only" received only verbal assurances from the adult. E. Finally, one group of children received no treatment and, hence, was called the "no treatment group." The researchers used something called the Behavior Avoidance Test to see if there was a reduction in avoidance of the snake. The results showed that 82 percent of the children in the contact desensitization group reduced their fear of snakes. Children in the other groups also reduced their fear, but not as dramatically. Fears are something we all have to live with. When they get out of hand, a technique like the one we described here can be very useful in assisting a child through a difficult experience.

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单选题(In an effort to) produce the largest, fastest, most luxurious ship afloat, the British built the Titanic. It was so superior to (anythingon) (the seas) that it (was dubbed) "unsinkable."

单选题When Ph. D candidates______ their impending professorships, they consider housing benefits offered by the prospective universities.(2002年中国社会科学院考博试题)

单选题Molly has always been a(n) ______ child; she becomes ill easily.

单选题This is the only book ______ I have on chemistry.

单选题Although it was none of my business I asked her if the one she was Ulamenting for/U was in any way kin.

单选题Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world"s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth"s surface; on the contrary, many of them lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The hot spots and their volcanic trails are milestones that mark the passage of the plates. That the plates are moving is not beyond dispute. Africa and South America, for example, are moving away from eath other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth"s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots, anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years. The significance of hot spots is not confined to their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes that propel the plates across the globe. When a continental plate come to rest over a hot spot, the material rising from deeper layer creates a broad dome. As the dome grows, it develops seed fissures (cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstant).

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单选题Students self-rating on "emotional health" and "physical health" reached all-lime lows. The reason may be ______.

单选题The new school building is ______ completion. A. nearlyto B. close to C. almost at D. just about at

单选题The degree of economic growth is an ______ of the level of living.

单选题It is now believed that the dramatic changes in family structure, though regrettable, are im possible to reverse.