It is time the nations of the world （ ）a halt to the manufacture of nuclear weapons.

A.would call B.call C.called D.will call

The early pioneers had to （ ）many hardships to settle on the new land.

A.go along with B.go back on C.go through D.go into

All experts agree that the most important consideration with diet drugs is carefully （ ）the risks and benefits.

A.weighing B.valuing C.evaluating D.distinguishing

Providing first-class service is one of the the （ ）airline adopts to attract passengers.

A.tactics B.attitudes C.solutions D.remedies

High cost of air travel, hotel rooms, food, and time lost while traveling have contributed to increased use of teleconferencing in business and government. （1）the benefits that might （2）form face-to-face live meeting, electronically held conferences can be just as （3） . Telephone companies have teleconferencing facilities （4） for business use. For a number of years, the telephone conference call, in （5） the phone company simply （6） for several people to be on the “line” at the same time, has been available. But （7） technology has gone far beyond that method.Conferences can now be （8） using television cameras and receivers with feedback （9） , so participants can （10） in a group discussion while observing one another. In this way, the （11） expressions and gestures that add so （12） to communication are apparent. The major morning news programs on television make frequent （13） of two-way video equipment to show us both the interviewer and the （14） ; teleconferencing （15） in the same way.Educational （16） on television bring the class to the student rather than the student to class. With close-circuit television and feedback audio equipment, however, actual campus classes are sent to （17） classrooms---often in a business organization’s educational facility. Students in a remote classroom can “buzz” the （18） classroom when they have questions to ask or answers to give to questions （19）by the instructor. The same system, of course, can be used with ill or disabled students in （20）and secondary schools.

A.Except for B.In addition to C.Rather than D.As well as
问题2：
A.decrease B.increase C.add D.minimize
问题3：
A.economical B.effortless C.effective D.efficient
问题4：
A.possible B.probable C.available D.usable
问题5：
A.which B.that C.what D.it
问题6：
A.arranges B.calls C.requires D.assigns
问题7：
A.genuine B.future C.electric D.current
问题8：
A.holding B.held C.hold D.to hold
问题9：
A.instrument B.utensil C.appliance D.equipment
问题10：
A.attend B.hear C.engage D.present
问题11：
A.mental B.facial C.physical D.familiar
问题12：
A.much B.little C.more D.less
问题13：
A.usage B.use C.utility D.usefulness
问题14：
A.audience B.employee C.interviewee D.viewer
问题15：
A.does B.shows C.makes D.works
问题16：
A.items B.programs C.performances D.lectures
问题17：
A.far B.remote C.near D.close
问题18：
A.actual B.factual C.virtual D.perpetual
问题19：
A.posed B.imposed C.answered D.interrogated
问题20：
A.high B.middle C.universal D.elementary

The single business of Henry Thoreau, during forty-odd years of eager activity was to discover an economy calculated to provide a satisfying life. His one concern, which gave to his ramblings in Concord fields a value of high adventure, was to explore the true meaning of wealth. As he understood the problem of economics, there were three possible solutions open to him: to exploit himself, to exploit his fellows, or to reduce the problem to its lowest denominator. The first was quite impossible—to imprison oneself in a treadmill when the morning called to great adventure. To exploit one’s fellows seemed to Thoreau’s sensitive social conscience an even greater infidelity. Freedom with abstinence seemed to him better than serfdom with material well-being, and he was content to move to Walden Pond and to set about the high business of living, to confront only the essential facts of life and to see what it had to teach. He did not advocate that other men should build cabins and live isolated. He had no wish to dogmatize concerning the best mode of living—each must settle that for himself. But that a satisfying life should be lived, he was vitally concerned. The story of his emancipation from the lower economics is the one romance of his life, and Walden is his great book. It is a book in praise of life rather than of Nature, a record of calculating economics that studied saving in order to spend more largely. But it is a book of social criticism as well, in spite of its explicit denial of such a purpose. In considering the true nature of economy he concluded, with Ruskin, that the cost of a thing is the amount of life that is required in exchange for it, immediately or in the long run. In Walden Thoreau elaborated the text: The only wealth is life.1.Thoreau started an experiment at Walden Pond with the hope of （ ）.2.To Thoreau the best solution to the problem of economics is （ ）.3.Thoreau holds that the crucial thing for people to do is to （ ）.4.In the book Walden all of the following can be found except （ ）.5.Thoreau’s attitude toward society can best be characterized as one of （ ）.

A.learning how to live quietly B.writing a book on philosophy C.discovering what humans can learn from nature D.working out the best adjustment to material life .
问题2：
A.to live a very simple life B.to become self-sufficient C.to live in the country D.to reform the society
问题3：
A.have a better understanding of what life means B.live harmoniously with nature C.to save as much as one possibly can D.to live a life that one is content with
问题4：
A.the nature of economy B.the meaning of freedom C.the criticism of society D.Ruskin’s philosophy
问题5：
A.acceptance B.avoidance C.indifference D.individualism