单选题He ______ his lesson about France with photographs of the people who live there.

单选题It has been proposed by many linguists that human language______,our biologically programmed abilith to use language, is still not well defined and understood.

单选题What do you think Alison said to herself when she saw the dog?

单选题In the early 20th century, at the Uadvent/U of the telephone, it was considered a superfluous instrument which would never be of practical use in the average household.

单选题I must have hung ______ for ten minutes before the telephone operator put me through.

单选题What is true of the present state of the Philippoteaux’s Gettysburg rendering?

单选题Fifty is the gateway to the most liberating passage in a woman's life. Children are making test flights out of the nest. Parents are expected to be roaming in their recreational vehicles or sending postcards of themselves riding camels. Free at last! Women can graduate from the precarious balancing act between parenting and pursuit of a career. That has been the message of my books since I wrote New Passages 15 years ago. What I didn't see coming was the boomerang. With parents living routinely into their 90s, a second round of caregiving has become a predictable crisis for women in midlife. Nearly 50 million Americans are taking care of an adult who used to be independent. Yes, men represent about one third of family caregivers, but their participation is often at a distance and administrative. Women do most of the hands-on care. It starts with the call. It's a call about a fall. Your morn has had a stroke. Or it's a call about your dad—he's run a red light and hit someone, again, but how are you ever going to persuade him to stop driving? Or your husband's doctor calls with news that your partner is reluctant to tell you. it's cancer. When that call came to me, I froze. The shock plunges you into a whirlpool of fear, denial, and feverish action. You search out doctors. They don't agree on the diagnosis. You scavenge the Internet. The side effects make you worry. You call your brother or sister, hoping for help. Old rivalries flare up. We'd like to think that siblings would be natural allies when parents falter. But the facts are quite different. Brothers bury their heads in the sand. The farther away a sister lives, the more certain she will call the primary caregiver and tell her she doesn't know what she's doing. A 1996 study by Cornell and Louisiana State universities concluded that siblings are not just inherent rivals, but the greatest source of stress between human beings. There are many rewards in giving back to a loved one. And the short-term stress of mobilizing against the initial crisis jump-starts the body's positive responses. But this role is not a short race. It usually turns into a marathon, averaging almost five years. But most solitary caregivers will wait until the third or fourth year before sending out the desperate cry "I can't do this anymore!/

单选题Acid rain leads to fish mortality. Many species of fish cannot survive in aquatic environments where the pH is below 5.0. If the water is too acid, the gill systems of many kinds of fish can be damaged. 1 , the acid alters the blood chemistry of all fish. As a result, the fish population in an acidic environment decreases 2 becomes extinct. Approximately 20 percent of the lakes in Scandinavia are without fish. Moreover, in Nova Scotia the 3 salmon industry may be threatened by the decrease of salmon in rivers and streams. The impact is also 4 in the waters of Ontario and Quebec, where fish populations are (25) the decline. What potential remedies exist for the acid rain 5 ? The experts disagree. Some say new environmental laws should be 6 to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned 7 to prevent it. 8 , all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another 9 is that special scrubbers could be installed in smokestacks to remove a good 10 of the pollutants before they get into the atmosphere. Other ideas even include breeding more 11 fish. And research suggests that spreading lime into lakes may be effective in 12 acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a 13 of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we 14 what we know now.

单选题{{B}}Directions:{{/B}} There are 4 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. You should decide on the best choice and mark your answer on the ANSWER SHEET by blackening the corresponding letter in the brackets. One of the youngest independent countries in the Western Hemisphere, Trinidad and Tobago, became a nation on August 31, 1962. For a long time this nation has attracted tourists--it is the home of calypso music and limbo dancing--and in recent years its healthy economy has attracted investors as well. Trinidad and Tobago is a single country composed of two islands: Trinidad, with the majority of the country's 900,000 inhabitants, is a rectangle of roughly fifty by forty miles. Tobago, nineteen miles to the north, is smaller and has a population of about 35,000. Situated at the end of the long chain of Windward and Leeward Islands, Trinidad is at one point only seven miles off the coast of Venezuela. Its geology, flora, and fauna are similar to those of the South American mainland. Like Venezuela, the backbone of Trinidad and Tobago's economy is petroleum and its first colonists were Spaniards. Three mountain ranges, with summits of up to 3,000 feet, cross Trinidad from east to west, while Tobago is a relatively flat coral island, rimmed with fine beaches. The broad plains between Trinidad's mountain ranges are dominated by vast fields of sugar cane that present a symmetrical green pattern when seen from the air. A closer inspection reveals the coconut plantations along the coast and the profusion of brilliant red and yellow flowers of various species that are found all over the island. Houses on both islands tend to be light-colored, with an open style of architecture, in many cages with open space under the entire dwelling. Port-of-Spain, the capital, is a bustling modern city where the pulse of the people reflects Britist, Spanish, and East Indian influcnces.

单选题It seems that the author of this article ______.

单选题The advantage of these contracts is that if property is destroyed by a Uperil/U not specifically excluded the insurance is good.

单选题The combination of lenses in a compound microscope makes possible greater {{U}}amplification{{/U}} than can be achieved with a single lens.

单选题He is a hypocrite, a liar, a thief ______, he is the greatest devil I ever know. A．as a consequence B．as a rule C．as a matter of fact D．as a matter of routine

单选题5 Alison closed the door of her small flat and put down her briefcase. As usual, she had brought some work home from the travel agency. She wanted to have a quick bite to eat and then, after spending a few hours working, she was looking forward to watching television or listening to some music. She was just about to start preparing her dinner when there was a knock at the door. "Oh, no ! Who on earth could that be?" she muttered to herself. She went to the door and opened it just wide enough to see who it was. A man of about sixty was standing there. It took her a moment before she realized who he was. He lived in the flat below. They had passed each other on the stairs once or twice, and had nodded to each other but never really spoken. "Uh, sorry to bother you, but...uh...there's something I'd like to talk to you about," he mumbled. He had a long, thin face and two big front teeth that made him look rather like a rabbit. Alison hesitated, but then, opening the door wide, asked him to come in. It was then that she noticed the dog. She hated dogs—particularly big ones. This one was a very old, very fat bulldog. The man had already gone into her small living-room and, without being asked, had sat down on the sofa. The dog followed him in and climbed up on the sofa next to him, breathing heavily. She stared at it. It stared back. The man coughed. "Uh, do you mind if I smoke?" he asked. Before she could ask him not to, he had taken out a cigarette and lit it. "I'll tell you why I've come. I...I hope you won't be offended but, well..." he began and then stopped. Suddenly his face went red. His whole body began to shake. Then another cough exploded from somewhere deep inside him. Still coughing, he took out a grey, dirty-looking handkerchief and spat into it. Afterwards he put the cigarette back into his mouth and inhaled deeply. As he did so, some ash fell on the carpet. The man looked around the room. He seemed to have forgotten what he wanted to say. Alison glanced at her watch and wondered when he would get to the point. She waited. "Nice place you've got here," he said at last.

单选题We made plans for a visit, but______difficulties with car prevented it.

单选题A child learning to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language as other people"s.

单选题{{B}}Passage 1{{/B}} Nowadays, with plentiful ice and electric churning, few people recall the shared excitement of the era when making ice cream was a rarely scheduled event. Then the iceman brought to the back door, on special order, a handsome 2-foot-square cube of cold crystal and everyone in the family {{B}}took a turn at the crank{{/B}}. The critical question among us children was, of course, who might lick the dasher. A century or so ago the novelist Stendhal knew only hand-churned ice cream and, when be first tasted it, ex-claimed, "What a pity this isn't a sin!" Hand-churning is still tops for perfectionists for no power-driven machine has yet been invented that can achieve a comparable texture. Even French Pot, the very best commercial method for making ice cream, calls for finishing by hand. Ice creams are based on carefully cooked well-chilled syrups and heavy custards, added to unwhipped cream. No form of vanilla flavoring can surpass that of vanilla suger or of the bean itself, steeped in a hot syrup. If sweetened frozen fruits are incorporated into the cream mixture instead of fresh fruits, be sure to adjust sugar content accordingly. Make up mixtures for chum-frozen ice creams the day before you freeze, to increasingly fill the container only 3/4 full to permit expansion. To pack the freezer, allow 3 to 6 quarts of chipped or cracked ice to I cup of coarse rock sail. Pack about 1/3 of the freezer with ice and add layers of salt and ice around the container until the freezer is full. Allow the pack to stand about 3 minutes before you start turning. Turn slowly at first, about 40 revolutions a minute, until a slight pull is felt. Them triple speed for 5 to 6 minutes. If any additions, such as finely cut candied or fresh fruits or nuts are to be made, do so at this point. Then repack and taper off the churning to a- bout 80 revolutions a minute for a few minutes more. The cream should be ready in 10 to 20 minutes, depending on the quality. If the ice cream or ice is to be used at once, it should be frozen harder then if you plan to serve it later. Should the interval be 2 hours or more, packing will firm it. To pack, pour off the salt water in the freezer and wipe off the lid. Remove the dasher carefully, making sure that no salt or water gets into the cream container Scrape the cream down from the sides of the container. Place a cork in the lid and replace the lid. Repack the container in the freezer with additional ice and salt, using the same proporions as before. Cover the freezer with newspapers, a piece of carpet or other heavy material. The cream should be smooth when served, If it proves granular, you used too much salt in the packing mixture, overfilled the inner, container with the ice cream mixture or turned too rapidly. If you are making a large quantity with the idea of storing some in the deep-freeze, package in sizes you plan on serving: Should ice cream be allowed to melt even slightly and is then refrozen, it loses in volume and even more in good texture.

单选题We managed to reach the top of the mountain, and half an hour later we began to ______. A. ascend B. descend C. decline D. plunge

单选题Before the______of hospitals, the family or communal sauna(桑拿)was favored by Finnish women for giving birth. Today, saunas are found in health clubs and gymnasiums around the world.