单项选择题

In recent decades child specialists have tried more and more to help parents with their children’s school behavior. Schools of education (31) tended to emphasize subject matter (32) what the children are being taught, but attention increasingly is being paid to the children themselves. One area (33) emphasized is the matter of a (34) developmental or "maturity" level--that is, the child’s (35) of readiness for starting school. Research demonstrated that a major (36) of children who fail in school (37) primarily because of their immaturity and their unreadiness for the work of the (38) that law designates: age five for kindergarten, age six for first grade. Common sense (39) us that not all five-year-olds have reached (40) average level of performance expected (41) age five. Thus many five-year-olds fail in kindergarten and six-year-olds fail in first grade (42) because of a "learning disability" or "attention deficit disorder" but simply because (43) are in a too-advanced grade. Experience has shown that the number of (44) learners can be substantially reduced by a policy of (45) every child’s readiness--that is, (46) level before beginning school. This concept has (47) widely. Many school systems now routinely provide not only readiness testing but also extra grade (48) : pre-kindergarten or "developmental" kindergarten for a year (49) full kindergarten; and pre-first grade for six-year-olds not fully (50) for first grade.

A. are B. fail C. have D. say
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单项选择题
The author writes the passage ______. A. to list the new values the United States must adopt B. to explain the necessity to adopt new values C. to tell the reader it is impossible to adopt new values D. to state that new values have replaced the old ones
As the 21st century begins, a number of leaders in politics, education, and other professions believe that the United States must adopt some new values to go along the older traditional ones. What new values should Americans adopt This is a very difficult question to answer. Certainly, a greater value should be placed on the conservation of natural sources; Americans should learn to use less and waste less. But conservation has never been a strong value to Americans, who have believed that their country offered an endless, abundant supply of natural resources. Recently, progress has been made--more and more Americans are recycling their paper, cans, bottles, and other goods--but old wasteful habits die hard. Furthermore, their need to protect the environment may conflict with the need for job, as in the Northwest, where conservationists battle lumber companies that want to cut down ancient redwood trees. A belief in the value of conservation is still weak compared with other American values; it can become stronger only as Americans see the need for it more clearly.
In addition, Americans may need to place a stronger value on cooperation on a national scale to achieve important national objective. The American idea of the national good has never been based on national cooperation but rather on the freedom of the individual, maintaining those conditions that provide the greatest freedom and prosperity for the individual. It is far more difficult for Americans to accept shared sacrifice for the common good and well-being of the entire country. For example, although the majority of Americans believe that is extremely important to balance the national budget and reduce the deficit, they do not want to see cuts in government programs that benefit them personally.
The American value of competition also hinders the development of a spirit of national cooperation. Competition sometimes encourages feelings of suspicion rather than the mutual trust that is necessary for successful national Cooperation. Although Americans often cooperate successfully on the local level--in neighborhood groups and churches, for example they become suspicious when the national government becomes involved. For example, on the national level, they may see themselves as part of an interest group that is competing with other interest groups for government funds. A request by the national government for shared sacrifice may be seen as coercive and destructive rather than voluntary and constructive. However, the demands of the 21st century may compel Americans to place a greater value on national cooperation to solve problems that affect them all, directly or indirectly