单选题It is generally thought to be of importance to a man that he ______ himself. A. knew B. know C. knows D. must know

单选题The (scientific) revolution of the early 1900s (affected) education by (change) the nature of (technology).A. scientificB. affectedC. changeD. technology

单选题Working hard and doing a good job give me ______ satisfaction and pleasure.

单选题As a matter of rule, the scrap value of a vessel can hardly be at ______ with the sound value.

单选题______ before we leave the day after tomorrow, we should have a wonderful time together. A. Had they arrived B. Would they arrive C. Were they arriving D. Were they to arrive

单选题Experts say the space rock is probably ______ more than U. S. $30,000.

单选题At first the disease affected only his foot but now it has Uspread/U to his leg.

单选题As the clouds drifted away an even higher peak became ______ to the climbers. A. visible B. obvious C. apparent D. plain

单选题{{B}}Questions 16-20 are based on the following passage:{{/B}} Perhaps the most familiar plant movement belongs to one species of mimosa called the sensitive plant. Within seconds, it can lower its leaves and make its tiny leaflets close up like folding chairs. This movement is thought to be initiated by electrical impulses remarkably similar to nerve signals in animals. But without the animals' sophisticated motion machinery, the mimosa has had to be creative in devising a way to move. For motion, the plant depends on tiny, bulb-shaped organs located at the base of each leaf stalk and leaflet. Called pulvini, these organs hold the plant parts in place. When the mimosa is stimulated—say, by a crawling insect or a sudden change in temperature—an electrical impulse sweeps through the plant. This causes potassium and then water to be shifted from certain cells in the pulvini to others, quickly turning one side of the organs flaccid. Because the pulvini can no longer support the leaves and leaflets, this shift results in a corresponding change in their position.

单选题Client: Could you please break the dollar into quarters? I need the coins for thetelephone stand. Bank Clerk :______ A. Here, you have them. B. Here, take them. C. Sure, in what denomination? D. Sure, here you are.

单选题A long time ago, at

单选题Michael：Hello，may I speak to Terry'? Bob：I'm sorry but Terry is not in now．______ A.Give him a call later． B.This is his colleague． C.May I take a message? D.Have you got a word for him?

单选题It is hard to imagine a more perfect gift than a fine watch, which lasts a lifetime and can become a family heirloom (传家宝). "Other gifts that you give don't last very long," says vice president Karl-Friedrich Scheufele of Geneva-based Chopard. "And there are very few that stay with the person wherever they go. This is the amazing thing about watches -- they are both beautiful and intimate. You have one on your wrist, and you remember a happy time in your life when you look at it." For something so personal, choosing the right watch demands corresponding care. Here is a brief look at some trends watch buyers will encounter this season. The most obvious trend in watches this season is the overwhelming popularity of sports watches in stainless steel. Yellow gold and two-tone watches of gold and steel are out -- and full steel is in. With the steel trend comes sportiness (花哨), which has been the industry's watchword, as it were, for the past three years. Generally speaking, the demand for large-scale steel-case designs -- with either steel or leather straps -- has led to a great supply of large, even bulky, designs for both men and women. "There is a demand for watches that are bigger and bolder," says Suryia Hill, media-relations manager for Roberg6 Watches Geneva. At Citizen, bulky sports watches are the big sellers. "People like to differentiate themselves with their watches, and calm, thin designs are not popular at the moment," says Willi Richter, general manager of Hamburg-based Citizen Watch Europe GmbH. "Young, middle-aged and even older people these days want to show that they are active, so they prefer bold, active watches./

单选题So long as teachers fail to distinguish between teaching and learning, they will continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that "reading cannot be taught directly and schools should stop trying to do the impossible. " Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public scrutiny. If teacher and learner roles are not interchangeable, what then can be done through teaching that will aid the child in the quest (探索) for knowledge? Smith has one principal rule for all teaching instructions. "Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children. " When the roles of teacher and learner are seen for what they are, and when both teacher and learner fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminate& Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of learning to read by reading.

单选题A person who is constantly worried about the loss of ______ job is not likely to do very good work.

单选题Walter offered us a lift when he was leaving the office but, our work ______, we declined the offer. A. was not finished B. has not been finished C. did not finish D. not having been finished

单选题A promotion of a country's international trade position is associated with of its currency. A. boom B. spiral C. appreciation D. prosperity

单选题The radical policy was rejected _____a more cautious one.

单选题By the first decade of the 21st century, international commercial air traffic is expected ______. vastly beyond today's levels. A. to have extended B. being extended C. to be extending D. having been extended