单选题Did anyone{{U}} call {{/U}}me when was out?

单选题I can no longer tolerate his actions.

单选题The love of money is the root of all evil.A. resultB. endC. forceD. cause

单选题Experiments enable young scientists to judge accurately what must be accepted and what must be viewed with suspicion. A. doubt B. belief C. curiosity D. judgment

单选题We have to hurry up since we have no ______ time to finish it.A. sufficientB. additionalC. efficientD. consequent

单选题The polar {{U}}regions{{/U}} are generally covered with ice and snow.

单选题He confessed that he did not read the assigned book. A. answered B. agreed C. admitted D. alleged

单选题Nowadays, we can purchase things on-line. A. read B. buy C. rent D. watch

单选题The food we have is inadequate .

单选题Mary is Ulooking/U for the book she lost yesterday.

单选题The industrial revolution {{U}}modified{{/U}} the whole structure of English society，

单选题More resources are being allocated to the project.

单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从 4个选项中选择1个最佳答案。 {{B}}Science and Truth{{/B}} "FINAGLE" (欺骗) is not a word that most people associate with science. One reason is that the image of the scientist is of one who always{{U}} (51) {{/U}}data in an impartial (不偏不倚的) search for truth~ In any debate -- {{U}}(52) {{/U}}intelligence, schooling, energy -- the phrase "science says" usually disarms opposition. But scientists have long acknowledged the existence of a "finagle factor" -- a tendency by many scientists to give a helpful change to the data to{{U}} (53) {{/U}} desired results. The latest of the finagle factor in action comes from Stephen Jay Gould, a Harvard biologist, who has{{U}} (54) {{/U}}the important 19th century work of Dr. Samuel George Morton. Morton was famous in his time for analysing the brain {{U}}(55) {{/U}}of the skulls as a measure of intelligence. He concluded that whites had the largest brains, that the brains of Indians and blacks were smaller, and {{U}}(56) {{/U}}, that whites constitute a superior race. Gould went back to Morton's original data and concluded that the{{U}} (57) {{/U}} were an example of the finagle at work. He found that Morton's "discovery" was made by leaving out embarrassing data,{{U}} (58) {{/U}}incorrect procedures, and changing his criteria -- again, always in favour of his argument. Morton has been thoroughly discredited by now and scientists do not believe that brain size reflects{{U}} (59) {{/U}}. But Gould went on to say Morton's story is only an example of a common problem in {{U}}(60) {{/U}}work. Some of the leading figures in science are{{U}} (61) {{/U}}to have used the finagle factor. Gould says that Isaac Newton fudged out (捏造) to support at least three central statements that he could not prove. And so{{U}} (62) {{/U}} Laudius Ptolemy, the Greek astronomer, whose master work, Almagest, summed up the case for a solar system that had the earth as its centre. Recent{{U}} (63) {{/U}} indicate that Ptolemy either faked some key data or resorted heavily to the finagle factor. All this is important because the finagle factor is still at work. For example, in the artificial sweetener controversy, for example, it is{{U}} (64) {{/U}}that all the studies sponsored by the sugar industry find that the artificial sweetener is unsafe, {{U}}(65) {{/U}}all the studies sponsored by the diet food industry find nothing wrong with it.

单选题Black Holes Most scientists agree that black holes exist but are nearly impossible to locate. A．black hole in the universe is not a solid object, like a planet, but it is shaped like a sphere (球体). Astronomers (天文学家) think that at the center of a black hole there is a single point in space with infinite (无限的) density (稠密). This single point is called a singularity (奇点). If the singularity theory is correct, it means that when a massive star collapses, all the material in it disappears into the singularity. The center of a black hole would not really be a hole at all, but an infinitely dense point. Anything that crosses the black hole is pulled in by its great gravity. Although black holes do exist, they are difficult to observe. These are the reasons. ·No light or anything else comes out of black holes. As a result, they are invisible to a telescope. ·In astronomical terms, black holes are truly tiny. For example, a black hole formed by the collapse of a giant star would have an event horizon (视界) only 18 miles across. ·The nearest black holes would be dozens of light years away from Earth. One light year is about 6 trillion (万亿) miles. Even the most powerful telescopes could not pick out an object so small at such a great distance. In 1994 the Hubble Space Telescope provided evidence that black holes exist. There are still answers to be found, however, so black holes remain one of the mysteries of the universe.

单选题下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题定1个最佳选项。{{B}}第一篇{{/B}} Smart Window Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch. "It took us a long time to figure out what a window really is," says Claes Granqvist. He's a professor of solid-state physics at Uppsala University in Sweden. "It's contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they're stuck indoors. Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it's hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world. Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color. Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage is decreased, the window darkens until it's completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark. One important feature that makes a smart window so smart is that it has a sort of "memory. " All it takes is a small jolt of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take anywhere from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need. "In the future," Granqvist says, "our buildings may look different. "

单选题I was surprised to find that they all fell in with my suggestion at once.

单选题Mary McCarthy’s satires are {{U}}couched{{/U}} in a prose style that has a classic precision.

单选题It"s evident that her handling of them has bruised the peaches.

单选题Some species of bacteria and fungi {{U}}thrive on{{/U}} simple compounds such as alcohol.

单选题 下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。{{B}}第一篇{{/B}} {{B}}Clobal Cancer Rates to Rise 50% by 2020{{/B}} The number of new cancer cases worldwide is expected to increase by 50% by the year 2020. But a new report suggests that as many as a third of new cancers could be avoided by adopting healthier lifestyles and through public health action. The World Cancer Report, released by the International Agency for Research on Cancer (IARC, part of the World Health Organization), shows that cancer has now emerged as a major public health threat in developing countries as well as affluent ones. Overall, cancer was responsible for 12% of all heaths in 2000. But in many countries more than a quarter of all deaths are caused by cancer. The report shows that 10 million new cancers were diagnosed globally in 2000, and that number is expected to rise to 15 million by 2020. Researchers say most of that increase will mainly be due to steadily aging populations in both developed and developing countries and current trends in smoking and other unhealthy habits. "Cancer has emerged as a major public health problem in developing countries for the first time, matching its effect in industrialized countries," says researcher Paul Kleihues, MD, director of IARA, in a news release. "Once considered a 'Western' disease, the Report highlights that more than 50 percent of the world's cancer burden, in terms of both numbers of cases and deaths, already occurs in developing countries." The risk of being diagnosed with cancer in developed countries is double that in less-developed ones. However, the risk of dying from cancer is much higher in developing countries, where 80% of cancer patients already have late-stage incurable tumors at the time of diagnosis. Researchers say cancer rates have traditionally been higher in developed countries due to greater exposure to tobacco, occupational carcinogens, and an unhealthy Western diet and lifestyle. As less-developed countries become industrialized and more prosperous, they tend to adopt the high-fat diet and low physical activity levels typically seen in the West, which increase cancer rates.