单选题The author mentions about Charlie Chaplin's early films because______.

单选题 Questions 18-20 are based on the following dialogue given by Professor Robert Watson who was answering questions on a radio phone program on the subject of learning a foreign language. You now have 15 seconds to read Questions 18-20.

单选题 I admit I am a complete fool about cats, who, for some reason I don't understand, fail to return my admiration. I will wait minutes for cars to pass so that I can cross the road to address a black and white cat at ease in sunshine on a low wall, either to watch the tip of a frightened tail disappear under a neighboring gate or to be met with the most violent cat curses or, while my hand moves gently over the smooth shining fur, to be bitten or scratched or attacked in both ways at the same time. It makes no difference: I continue my journey with my respect increased. After all, the wisest men of one of the oldest civilizations worshipped the noble cat so why should I be ashamed of following their example? I have sometimes stayed long enough in one place to be owned by a cat and it is on those occasions that I at last feel sympathy with parents who cannot control their children. I have the firmest belief in discipline, especially for the cat who adopts me and is kind enough to allow me to share her home and provide her with food. She will have a comfortable basket and not sit on any furniture; she will come when called or have no supper; and she will at all times behave towards me with the respect I show towards her. And then what happens? She refuses even to consider the basket, and, as soon as my back is turned, settles on my favorite chair, daring me to move her on my return. At some unexpected moment after I have sat down, she springs suddenly on to my knees and delightedly ruins my stockings with her claws, complaining angrily, even painfully with the sharpest of teeth, if I bend down to pick something up. I dare not rise to change the television program, however much I dislike it, and she watches dreamily the moving shadows on the screen. She comes not to my call, but when she is ready, hours later, and I am so relieved to see her that her supper is increased in amount. When put out at night (with fierce disapproval) she waits till I am asleep and then cries noisily at my bedroom to come in. An hour later she cries even more noisily at the bedroom door to be let out again. If I go away on holiday, a neighbor feeds her, who reports on my return on her sweetness, her obedience and perfect behavior. I am the only one that she delights in defying. Dogs are pleasant animals, friendly, faithful and intelligent. Dogs have proper respect for the human race. You know where you are with a dog; never with a cat, who will be selfish, vain, ungrateful and quite unreasonable. But that's just it. Who wants to know where he is with any living thing? It is the free, the strange creature of grace and beauty, the independent and unknown, that attracts, not the worthy, respectful, dependable slave.

单选题The United States is presently facing serious water problems. Rain and snow do not fall 1 across the country. The Northwest receives an abundance of rain, more than 80 inches each year in some areas. 2 , parts of the West and Southwest 3 less than ten inches per year. The Northeast and Midwest 4 have had sufficient supplies of water, but recently both regions have begun to experience water 5 . 6 one point, while New Yorkers were worrying about having enough water in which to bathe, farmers in Iowa prayed that their crops would 7 the hot summer months. One area that has been hit especially 8 by the increasing shortage of water is the Southwest. Cacti flourish across its deserts, but crops cannot grow in the dry, sandy 9 10 there is extensive irrigation. In some areas, farmland is 11 to desert because the life-giving water has run out or become too 12 to pump from deep underground. The Southwest receives its water from 13 two sources: large, underground reserves of water, called aquifers, and the 1, 400-mile-long Colorado River. The aquifers, which were formed over thousands of years ago, are being consumed slowly 14 surely. More water is taken out than nature can 15 . The aquifers receive only 8 percent of the total precipitation; the 16 92 percent either evaporates or flows 17 into the ocean. The Ogallala Aquifer stretches 800 miles form western Texas to northen Nebraska. This underground 18 of fresh water, containing enough water to fill Lake Huron, is perhaps the largest in the world. 19 , its water level is 20 dropping. If water consumption continues at the present rate, the Ogallala may be dry in 40 more years.

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单选题It is implied in the first paragraph that Dr. Mahathir ______.

单选题Careful testing has revealed that, of the high-I. Q. people,______.

单选题What really happened to Elizabeth at 800 feet?

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单选题What does the fourth paragraph imply?

单选题We learn from the passage that passage that a storm follows a change in ______.

单选题Which language is ______ , English, Chinese or French? [A] difficult [B] the most difficult [C] more difficult

单选题 {{I}} Questions 11--13 are based on the following dialogue. You now have 15 seconds to read Questions 11--13.{{/I}}

单选题According to Dr. Jeol Hiderbrand what accounts for his ageless energy?

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