单选题The engineers are so busy that they have zero time for outdoor sports activities, ______ they have the interest.

单选题—Harry treats his secretary badly. —Yes, he seems to think that she"s the ______ important person in the office.

单选题The use of military force faces strong opposition among key US allies where opinion polls show ______ majorities of the population support a peaceful solution.

单选题 Would it help you if you could read twice as fast as you read now? How about twenty times as fast, and with better comprehension? The human {{U}} {{U}} 1 {{/U}} {{/U}}is capable of seeing and understanding material as fast as one can turn pages, and some people do read {{U}} {{U}} 2 {{/U}} {{/U}}fast. John Stuart Mill, Theodore Roosevelt, and John F. Kennedy were all{{U}} {{U}} 3 {{/U}} {{/U}}fast readers,{{U}} {{U}} 4 {{/U}} {{/U}}have been many others. They were what{{U}} {{U}} 5 {{/U}} {{/U}}known as gifted readers; those who read very fast with excellent comprehension. Gifted readers come from every walk of life, for reading is a skill not {{U}} {{U}} 6 {{/U}} {{/U}}to age, occupation, heredity, or intelligence. The only reason that you may not read fast now is because your natural gifts may have been smothered in school. The {{U}} {{U}} 7 {{/U}} {{/U}}reading is taught in most public schools is the same technique {{U}} {{U}} 8 {{/U}} {{/U}}a century ago. {{U}} {{U}} 9 {{/U}} {{/U}}, the average American reads at about the same rate today as 100 years ago. Most people read {{U}} {{U}} 10 {{/U}} {{/U}}100 and 400 words per minute, the national average. But slow readers are severely penalized throughout life and are simply unable to {{U}} {{U}} 11 {{/U}} {{/U}}because of the tremendous volume of reading required today. In theory, the only things that should decide reading rate are the student's background in the subject, the purpose for reading the {{U}} {{U}} 12 {{/U}} {{/U}}material, and the ability to turn pages. Some readers, tested in difficult textbook material, have read thousands of words per minute with {{U}} {{U}} 13 {{/U}} {{/U}}comprehension. That's over a dozen pages per minute. Yet some of these same super readers {{U}} {{U}} 14 {{/U}} {{/U}}to read at the rate of only 200 words per minute. So it is certainly possible for the {{U}} {{U}} 15 {{/U}} {{/U}}reader to increase his or her reading speed considerably. What limits your reading rate? Poor habits, such as sub vocalization, regression, prolonged fixation, and {{U}} {{U}} 16 {{/U}} {{/U}}eye movement. These poor habits cause tired eyes, boredom, low speeds, and low comprehension. It is not ability {{U}} {{U}} 17 {{/U}} {{/U}}you lack, it is training. Because we are taught to read at 100 to 400 words per minute, we are led to believe this is our "normal rate. " But these rates are no more normal than 10 or 10000 words per minute. Improving your rate only {{U}} {{U}} 18 {{/U}} {{/U}}proper training and time. A book {{U}} {{U}} 19 {{/U}} {{/U}}give the kind of help necessary to make a dramatic increase in your reading skills. But, {{U}} {{U}} 20 {{/U}} {{/U}}you can get some professional help from a well-trained, rapid reading instructor, there are some positive steps you can take.

单选题It ______ his own principles to borrow money from others. A. goes through B. goes off C. goes over D. goes against

单选题Mr. Smith, if you are heading for the Summer Palace, you are going ______ the wrong direction.

单选题John said that his grandfather ______ for ten years.

单选题The twins are so much ______ that it is difficult to tell one from another.

单选题A word processor is much better than a typewriter in that it enables you to enter and ______ your text more easily.

单选题I thought his speech would be interesting, but it turned out that the more he talked, ______.

单选题Dr. Black comes from either Oxford or Cambridge. I can"t remember ______.

单选题In the earliest stages of man"s development he had no more need of money than animals have. He was content with very simple forms of shelter, made his own rough tools and weapons and provided food and clothing for him and his family from natural materials around him. As he became more civilized, however, he began to want better shelter, more efficient tools and weapons, and more comfortable and lasting clothing than could be provided by his own neighborhood or by the work of his own unskilled hands. For these things he had to turn to the skilled people such as smiths, leather workers or carpenters who were springing up everywhere. It was then that the questions of payment arose. At first he got what he wanted by a simple process of exchange. The smith who had not the time to look after land or cattle was glad to take meat or grain from the farmer in exchange for an ax or a plough. But as more and more goods which had not fixed exchange value came on the market, exchange became too complicated to be satisfactory. Another problem arose when those who made things wanted to get stocks of wood or leather, or iron, but had nothing to offer in exchange until their finished goods were ready. Thus the difficulties of exchange led by degrees to the invention of money. In some countries, easily handled things like seeds or shells were given a certain value and the farmer, instead of paying the smith for a new ax by giving him some meat or grain, gave him so many shells. If the smith had any shells left when he had bought his food, he could get stocks of the raw materials of his trade. In some countries quite large things such as cows or camels or even big flat stones were used for trade. Later, pieces of metal, bearing values according to the rarity of the metal and the size of the pieces, or coins were used. Money as we know it had arrived.

单选题Jones seldom wakes up at six in the morning, ______?

单选题Throughout life, human beings take air into their lungs about 20 times a minute.

单选题Movie stars never fail to stir people, especially those young.

单选题He ______ English for 8 years by the time he graduates from the university next year.

单选题Liz won"t be at work next week—______ a well-earned break.

单选题His efforts to raise money for his program were ______ because no one showed any intention to take a cent out of their pockets.

单选题The scientists wanted to keep people ______ about the breakthrough in their experiment.

单选题To speed up the ______ of letters, the Post Office introduced automatic sorting.