单选题Which of the following can be concluded from the passage?

单选题Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels of arsenic poison. Finding safe drinking water in that country can be a problem. However, International Development Enterprises has a low-cost answer. This non-governmental organization has developed technology to harvest rainwater. People around the world have been harvesting rainwater for centuries. It is a safe, dependable source of drinking water. Unlike ground water, rainwater contains no minerals or salts and is free of chemical treatments. Best of all, it is free. The rainwater harvesting system created by International Development Enterprises uses pipes to collect water from the tops of buildings. The pipes stretch from the tops of buildings to a two-meter tall storage tank made of metal. At the top of the tank is a so called "first-flush" device made of wire screen. This barrier prevents dirt and leaves in the water from falling inside the tank. A fitted cover sits over the "first-flush" device. It protects the water inside the tank from evaporating. The cover also prevents mosquito insects from laying eggs in the water. Inside the tank is a low coat plastic bag that collects the water. The bag sits inside another plastic bag similar to those used to hold grains. The two bags are supported inside the metal tank. All total, the water storage system can hold up to 3,500 liters of water. International Development Enterprises says the inner bags may need to be replaced every two to three years. However, if the bags are not damaged by sunlight, they could last even longer. International Development Enterprises says the water harvesting system should be built on a raised structure to prevent insects from eating into it at the bottom. The total cost to build this rainwater harvesting system is about forty dollars. However, International Development Enterprises expects the price to drop over time. The group says one tank can provide a family of five with enough rainwater to survive a five-month dry season.

单选题You must always be ready to sacrifice ______ to duty.

单选题Sophisticated edit facilities allow complicated musical forms to be created.

单选题(While) schools developing online curricula try to strike (a balance) between profits and prestige, many educators (are confusing) about their role in this (digital world).

单选题As far back as he could remember, Larry had longed to go to Hollywood and become a film star. The young man’s hopes for success were broken again and again, however. Hollywood just did not seem interested. When he first came to California Larry had decided never to give up and return home without success. Therefore, he kept on trying. Someday, he told himself, his big opportunity would come. Larry found a job parking cars for one of Hollywood’s big restaurants. His pay was basic, but since the guests were kind enough to give him more money, he managed to make a living. One day he recognized an important film director driving into the parking lot and getting out of his car. Larry had recently heard that the man was ready to make a new picture. Larry got into the car and prepared to drive it on into the lot and park it. Then he stopped, jumped out, and ran over to the director. "Excuse me, sir, but I think it’s only fair to tell you that it’s now or never if you want me in Your next picture. A lot of big companies are after me." Instead of pushing away the boy, the director got interested in Larry’s words and stopped. "Yes? Which companies?" he asked. "Well," replied the boy, "there’s the telephone company, the gas company, and the electric company, to tell you only a few." The director laughed, then wrote something on a card and handed it to the young man. "Come and see me tomorrow." Larry got a small part in the director’s next film. He was on his way!

单选题If you go to the USA, you'll be able to make friends with those ______.

单选题A hat company ships its hats, individually wrapped, in 8-inch by 10-inch by 12-inch boxes. Each hat is valued at $7.50. If the company's latest order required a truck with at least 288,000 cubic inches of storage space in which to ship the hats in their boxes, what was the minimum value of the order? A. $960 B. $1,350 C. $1,725 D. $2,050 E. $2,250

单选题What will man be like in the future—in 5,000 or 50,000 years from now? We can only make a guess, of course, but we can be sure that he will be different from【C1】______he is today. For man is slowly changing all the time. Let us【C2】______an obvious example. Man, even five hundred years【C3】______, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is relatively a short period of time, so we are sure that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 10% of the brain's capacity. As time goes on, 【C4】______, we shall have to use our brains more and more— and【C5】______we shall need larger ones! This is likely to bring about a【C6】______change to the head; in particular the forehead will grow larger. On the other hand, we【C7】______to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more【C8】______, because they are used a great deal in modern life. But what about hair? This will probably disappear from the body altogether because it does not serve a useful purpose【C9】______In the future, then, both sexes are likely to be bald. Perhaps all this gives the impression that future man will not be a very attractive creature【C10】______! This may well be true.

单选题Even though the evidence is overwhelming, if one juror is still {{U}}skeptical{{/U}}, the case must be retried.

单选题Since the energy crisis, these big cars have become a real liability .Thev cost too much to run.(2004年秋季电子科技大学考博试题)

单选题 I've heard many students and professionals express a desire to take a speed reading course so they can increase their knowledge at a faster rate. But the information I've {{U}} {{U}} 1 {{/U}} {{/U}}over the last few years {{U}} {{U}} 2 {{/U}} {{/U}}me to believe that "speed reading" may be less useful than most people think. Don't push yourself to read at a(n){{U}} {{U}} 3 {{/U}} {{/U}}pace. The claim that you can read and fully {{U}} {{U}} 4 {{/U}} {{/U}}2,000 or 3,000 words per minute is a(n){{U}} {{U}} 5 {{/U}} {{/U}}exaggeration. One researcher proved this in a study in which irrelevant and {{U}} {{U}} 6 {{/U}} {{/U}} sentences were added to a passage of writing. The "speed readers" who were tested didn't notice the irrelevant lines-the non-speed readers {{U}} {{U}} 7 {{/U}} {{/U}}them immediately. It was said that President Kennedy read three or four major daffy newspapers each morning in just a few minutes. But he {{U}} {{U}} 8 {{/U}} {{/U}}obtained all the information he needed from the headlines and topic paragraphs. I wish I could have {{U}} {{U}} 9 {{/U}} {{/U}}him after he completed his daily newspaper reading. I'm willing to {{U}} {{U}} 10 {{/U}} {{/U}}he would not have known most details revealed in the body of the articles-{{U}} {{U}} 11 {{/U}} {{/U}}those in stories he read completely. I suspect that's also true {{U}} {{U}} 12 {{/U}} {{/U}}most persons who make {{U}} {{U}} 13 {{/U}} {{/U}}to great reading speeds. I've never taken one of the reading courses that {{U}} {{U}} 14 {{/U}} {{/U}}to increase your reading pace astronomically, but I've spoken {{U}} {{U}} 15 {{/U}} {{/U}}to many persons who have. Virtually all of them felt the courses had been helpful but, {{U}} {{U}} 16 {{/U}} {{/U}}, didn't make them faster readers. My secretary used to teach a speed reading course for the personnel department of a large utility company. She told me the follow-up {{U}} {{U}} 17 {{/U}} {{/U}}indicated that employees who attended all 12 classes showed no {{U}} {{U}} 18 {{/U}} {{/U}}long-term improvement in their reading speed. She did add, {{U}} {{U}} 19 {{/U}} {{/U}}, that many company employees took the course to enhance their promotion opportunities, and it may well have {{U}} {{U}} 20 {{/U}} {{/U}}that purpose.

单选题Arrogance and pride are similar in meaning, but there is a(n)______difference between them. A. submerged B. indecisive C. indistinct D. subtle

单选题My husband and children feel very happy to live here. They can't see that we live on a dirty street in a dirty house among people who aren't good. They can't see that our neighbors have to make happiness out of all this dirt. I decided that my children must get out of this. The money that we've saved isn't nearly enough. The McGaritys have money but they are so proud. They look down upon the poor The McGarity girl just yesterday stood out there in the street eating from a bag of candy while a ring of hungry children watched her. I saw those children looking at her and crying in their hearts; and when she couldn't eat any more she threw the rest down the sewer (下水道). Why? Is it only because they have money? There is more to happiness than money in the world, isn't there? Miss Jackson who teaches at the Settlement House isn't rich, but she knows things. She understands people. Her eyes look straight into yours when she talks with you. She can read your mind. I'd like to see the children will be like Miss Jackson when they grow up.

单选题The house was very quiet,______as it was on the side of a mountain.(中国矿业大学2010年试题)

单选题Since you've repaired my TV set, ______ is no need for me to buy a new one.A. thereB. itC. thisD. that

单选题Half the profits are______in a corporate account that can be drawn on only with stockholder consent.

单选题Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (51) on the individual suggest that children engage in criminal behavior (52) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (53) with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status, (54) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, ignoring the fact that children from wealthy homes also commit crimes. The latter may commit crimes (55) lack of adequate parental control. All theories, however, are tentative and are (56) to criticism. Changes in the social structure may indirectly (57) juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment (58) make gainful employment increasingly difficult to obtain. The resulting discontent may in turn lead more youths into criminal behavior. Families have also (59) changes these years. More families consist of one-parent households or two working parents; consequently, children are likely to have less supervision at home (60) was common in the traditional family structure. This lack of parental supervision is thought to be an influence on juvenile crime rates.