单选题Kate"s ambition to become a nurse arose from a desire to help others.

单选题We cannot compel you to do it, but we think you should.

单选题Vitamins are another essential requirement for health. There are about forty known vitamins, but the most generally referred to are A, B, C, D and E. Deficiency of Vitamin A, found in carrots, rose -hips, liver, etc. , is alleged to affect the vision and the skin and reduce resistance to infection. Vitamin C, present in nearly all fruit, particularly oranges and other citrus fruit, has come to be regarded as particularly effective in the prevention of cold and low energy states. What will probably happen to a person with Vitamin C deficiency according to the paragraph?A. He will be easily infected.B. He will have a poor vision.C. He will have smooth skin.D. He will catch cold ffequently.

单选题He strange clothes and make - up really astonished the people at the party.A. attachedB. shockedC. attractedD. shifted

单选题The Cheyenne Indians were considered spectacular riders and fierce warriors.A. huntersB. defendersC. enemiesD. fighters

单选题You accusation is {{U}}wholly{{/U}} without foundation.

单选题Sleeplessness Insomnia or sleeplessness is a common complaint of women as they enter into menopause. Insomnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you. For women who are having night sweats, their sleep is broken by frequent awakening and therefore not refreshing. Generally once the night sweats are controlled a normal sleep pattern returns. If it doesn"t it may be, or have become chronic insomnia. How do you know? If you suffer from insomnia every night or most nights for a period of one month then you have chronic insomnia. If you"re not having night sweats then it"s time to look for other causes of sleeplessness. Depression and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be checked by a qualified health care provider. Movement disorders such as restless leg syndrome are second on the list of insomnia for them, there are new medicines that may help. Other common causes are shift working, and pain. In up to 30% of people with chronic insomnia no cause can be identified. Medical treatment of these people has generally been with sleeping pills. It is estimated that 25% of the adult population in America took some type of medicines for sleep last year. It is generally agreed that sleeping pills should only be in the lowest dose and for the shortest possible time. Sleep hygiene is directed at changing bad sleep habits. The recommendations are:—Go to bed only when sleepy.—Do not wait up to a specilized time.—Avoid caffeine and alcohol in the evening, etc.

单选题His novel was adapted for the stage in 1949 as a musical play entitled as St. Louis woman.A. closer forB. includedC. starredD. named

单选题The scientist thinks he can read a man' s ______ from his favorite music.A. attributeB. featureC. propertyD. character

单选题The toy boat turned over and sank to the {{U}}bottom{{/U}} of the pool.

单选题{{B}}第二篇{{/B}} A new international study shows that six people die every minute from smoking. That equals 3 million deaths around the world every year. If the present rate (率)of smoking continues, the number of deaths each year from smoking could rise to 10 million by the year 2020. The study describes smoking as the biggest cause to deadly diseases among grown-ups in industrial countries. So far most of the smoking deaths have happened on men, especially in developing countries. A researcher at the World Health Organization says 70% of Chinese men smoke more than 15 cigarettes each day. In Latin America about 50% of the men are smokers. There also is a very large number of smokers in the former Soviet Union(苏联)and in the east Europe. And 25% of all smoking deaths worldwide are in those areas of the world. Scientists say smoking will kill 50% of the countries. Smoking is known to cause lung cancer. It also can lead to cancer of the mouth and other parts of bodies. Smokers are more likely than non-smokers to suffer from heart disease. Experts say that people reduce their chance of dying from smoking if they stop smoking completely. They say smokers who give up smoking can improve their health.

单选题Fine freshwater pearls are found in the main stream and the tributaries of the Mississippi River.A. banksB. deltasC. branchesD. currents

单选题The most {{U}}pressing{{/U}} problem any economic system faces is how to use its scarce resources. A.puzzling B.difficult C.terrifying D.urgent

单选题The Klondike was the Uscene/U of one of the biggest gold rashes the world has ever known.

单选题Although Peter is only 25 years old, he earns a large income.A. respectfulB. respectableC. respectiveD. respected

单选题Loud noises can be {{U}}annoying{{/U}}.

单选题In a bullfight, it is the movement, not the color, of objects that arouses the bull.

单选题She shows little Uregard/U for the feelings of others and does exactly what she wants to.

单选题A Sunshade for the Planet Even with the best will in the world, reducing our carbon emissions is not going to prevent global wanning. It has become clear that even if we take the strongest measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time, resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough. Fortunately, if the worst comes to the worst, scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now, that is, a growing number of researchers are taking a fresh look at large-scale "geo-engineering" projects that might be used to counteract global wanning. "I use the analogy of methadone," says Stephen Schneider, a climate researcher at Stanford University in California who was among the first to draw attention to global warming. "If you have a heroin addict, the correct treatment is hospitalization and a long rehab. But if they absolutely refuse, methadone is better than heroin. " Basically the idea is to apply "sunscreen" to the whole planet. One astronomer has come up with a radical plan to cool Earth; launch trillions of feather-light discs into space, where they would form a vast cloud that would block the sun's rays. It's controversial, but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 per cent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial, because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century, and that would last for at least a century more.

单选题You should {{U}}cultivate{{/U}} the habit of reading carefully.