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阅读下面的短文，文中有15处空白，每处空白给出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。 Smoking is considered dangerous to the health. Our tobacco--seller, Mr. Johnson, therefore, always asks his customers, if they are very young, whom the cigarettes are bought (51) . One day, a little girl whom he had never seen before walked (52) into his shop and demanded twenty cigarettes. She had the (53) amount of money in her hand and seemed very sure of herself. Mr. Johnson was so (54) by her confident manner that he (55) to ask his usual question. (56) , he asked her what kind of cigarettes she wanted. The girl replied (57) and handed him the money. While he was giving her the change, Mr. Johnson said laughingly that (58) she was so young she should (59) the packet in her pocket in case a policeman saw it. (60) , the little girl did not seem to find this very funny. Without (61) smiling she took the (62) and walked towards the door. Suddenly she stopped, turned (63) , and looked steadily at Mr. Johnson. There was a moment of silence and the tobacco-seller (64) what was going to say. All at once, in a clear, (65) voice, the girl declared, " My dad is a policeman," and with that she walked quickly out of the shop.
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第三篇 Priscilla Ouchida’s "energy-efficient" house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a ＄ 100,000, three--bedroom home in California. Tightly sealed to prevent air leaks, the house was equipped with small double-parted (双层玻璃) windows and several other energy-saving features. Problems began as soon as the couple moved in, however. Priscilla’s eyes burned. Her throat was constantly dry. She suffered from headaches and could hardly sleep. It was as though she had suddenly developed a strange illness. Experts finally traced the cause of her illness. The level of formaldehyde(甲醛)gas in her kitchen was twice the maximum allowed by federal standards for chemical workers. The source of the gas Her new kitchen cabinets and wall-to-wall carpeting. The Ouchidas are victims of indoor air pollution, which is not given sufficient attention partly because of the nation’s drive to save energy. The problem itself isn’t new. "The indoor environment was dirty long before energy conservation came along." Says Moschandreas, a pollution scientist at Geomet Technologies in Maryland. "Energy con- servation has tended to accentuate the situation in some cases." The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn’t worry much about unsealed cracks. Because of such leaks, the air in an average home was replaced by fresh outdoor air about once an hour. As a result, pollutants generated in most households seldom built up to dangerous levels. The word "accentuate" (Para. 3) most probably means" ______".
阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 Before any period of exercise it is well worth spending two or three minutes warming up with a series of simple stretching exercises. This not only helps your joints(关节) to move easily but also prepares all your muscle groups for more energetic activity. It is rather like a cat stretching itself before it springs into action. Here are four movements to do in an easy and unhurried way, gently stretching each action without forcing it. Repeat each movement ten times, breathing normally throughout. Ⅰ. Standing with your feet apart, push both arms out straight in front of you, fingertips touching. Raise them above your head, then down to the sides pushing each arm backwards at the same time. Ⅱ. Standing with your feet apart, and hands on hips(臀部). Tip your head back and look straight up to the ceiling. Roll your head round slowly to face the right, then the floor, then the left, and finally up at the ceiling again. Repeat in the other direction. Ⅲ. Standing with your feet apart and hands on your sides, lean first to the right and then to the left, sliding the hand down the side of the leg. Ⅳ. Standing feet apart and arms out straight in front, with your eyes fixed on your right hands, swing your right arm round to the right, keeping it straight, as far as it will go. Return it to the front and repeat with the left arm. Without warming up, you’ll easily get hart when doing exercise.
阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 Before any period of exercise it is well worth spending two or three minutes warming up with a series of simple stretching exercises. This not only helps your joints(关节) to move easily but also prepares all your muscle groups for more energetic activity. It is rather like a cat stretching itself before it springs into action. Here are four movements to do in an easy and unhurried way, gently stretching each action without forcing it. Repeat each movement ten times, breathing normally throughout. Ⅰ. Standing with your feet apart, push both arms out straight in front of you, fingertips touching. Raise them above your head, then down to the sides pushing each arm backwards at the same time. Ⅱ. Standing with your feet apart, and hands on hips(臀部). Tip your head back and look straight up to the ceiling. Roll your head round slowly to face the right, then the floor, then the left, and finally up at the ceiling again. Repeat in the other direction. Ⅲ. Standing with your feet apart and hands on your sides, lean first to the right and then to the left, sliding the hand down the side of the leg. Ⅳ. Standing feet apart and arms out straight in front, with your eyes fixed on your right hands, swing your right arm round to the right, keeping it straight, as far as it will go. Return it to the front and repeat with the left arm. Before exercise. You’d better do something to warm up first.
第二篇 Moods, say the experts, are emotions that tend to become fixed, influencing one’s outlook for hours, days or even weeks. That’s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry or simply lonely. Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Modern pharmacology(药理学)offers an abundance of tranquilizers(安眠药), anti-depressants and anti-anxiety drugs. What many people don’t realize, however, is that scientists have discovered the effectiveness of several non-drug approaches to make you loose from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being non-poisonous. So next time you feel out of sorts, don’t head for the drug-store, try the following approach. Of all the mood-altering self-help techniques, aerobic(增氧健身的)exercise seems to be the most efficient cure for a had mood. "If you could keep the exercise, you’d be in high spirits," says Kathryn Lance, author of Running for Health and Beauty. Researchers have explained biochemical and various other changes that make exercise compare favorably to drugs as a mood-raiser. Physical exertion such as housework, however, does little. The key is aerobic exercise--running, cycling, walking, swimming or other repetitive and sustained activities that boost the heart rate, increase circulation and improve the body’s utilization of oxygen. Do them for at least 20 minutes a session, three to five times a week. What is the main subject of the passage
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