公共英语四级-41及答案解析.doc
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1、公共英语四级-41 及答案解析(总分:100.00,做题时间:90 分钟)一、Section Reading Co(总题数:0,分数:0.00)二、Part A(总题数:0,分数:0.00)三、Text 1(总题数:1,分数:15.00)A Food and Drug Administration (FDA) advisory committee has concluded that a novel new treatment can greatly help rheumatoid arthritis patients. The panel recommended approving Enbr
2、el for use alone in patients who haven“t responded to other drugs or in combination with methotrexate, a cancer drug that has been the main treatment for rheumatoid arthritis. The FDA must make a final decision by early November, and the drug“s maker says it could be on the market by year“s end. In
3、rheumatoid arthritis, which affects 2.1 million Americans, the immune system attacks healthy joints. A major wrongdoer in this process is a protein called “tumor killing factor“, or TNF, which interacts with a special molecule, or TNF receptor, on cells“ surfaces. To keep inflammation in check, cell
4、s normally release some receptors to mop up excess TNF, rendering it inactive. Apparently, rheumatoid arthritis patients don“t have enough free-floating TNF receptors. Enbrel consists of genetically engineered TNF receptors. In a six-month study, 234 patients with advanced rheumatoid arthritis recei
5、ved one of two doses of Enbrel or a placebo (harmless substance given as if it were medicine) in twice-a-week injections. They took injections for six months. By the end, 40% of patients on the larger Enbrel dose saw symptoms, such as swelling and joint pain, cut in half. Only 5% on the placebo did
6、that well. The main side effect was minor irritation at the injection site. Because some TNF is needed for a normal immune response, there is at least a theoretical risk of infections or even cancer in patients who take Enbrel, so the FDA panel urged long-term safety studies. Last week, the FDA appr
7、oved Arava, an oral treatment for rheumatoid arthritis that is similar to methotrexate. While calling both Enbrel and Arava “potentially very important“, Brian Butcher, vice president for research at the Arthritis Foundation, notes they have been tested in relatively few patients. Butcher says their
8、 safety should be closely monitored once they“re widely available.(分数:15.00)(1).Enbrel as recommended by FDA advisory committee(分数:3.00)A.could be a substitute for methotrexate in the near future.B.might bring hope to rheumatoid arthritis patients.C.should be administered to all rheumatoid arthritis
9、 patients alike.D.would distinguish itself for its cancer-killing effect.(2).Which of the following is responsible for the inflammation of the joints?(分数:3.00)A.A special molecule on cell“s surface.B.A free-floating receptor.C.A tumor-killing protein.D.Inactive TNF.(3).We learn from Paragraph 6 that
10、(分数:3.00)A.Enbrel treatment in large doses could reduce the patients“ symptoms.B.arthritis patients presented symptoms after Enbrel treatment.C.arthritis patients with treatment of a placebo were rid of symptoms.D.only 5% on the placebo got symptoms such as swelling and joint pain.(4).The wide use o
11、f the new drug Enbrel relies much on(分数:3.00)A.justification of the new treatment.B.a new monitoring system.C.mass production of the drug.D.long-term safety studies.(5).Which of the following might be an appropriate title for the text?(分数:3.00)A.TNF and Immune SystemB.Enbrel versus MethotrexateC.Art
12、hritis Drug on Path to ApprovalD.Study on Rheumatoid Arthritis四、Text 2(总题数:1,分数:15.00)How far away you are from retirement plays a large part in how you should invest your retirement money. According to Leslie Wright of Westminster Portfolio Services Ltd., there are three stages to a long-term regul
13、ar savings plan for retirement: capitalization, consolidation and conservation. In the first stage, people should be most concerned with building up their retirement savings investment. According to Wright, these investors can “take as aggressive an outlook as their nerves can stand,“ because at thi
14、s point there is little capital to risk. The second step, consolidation, makes up the bulk of your savings plan; balance the aggressive investments with some tamer ones, to better protect your existing possessions. The final change, from consolidation to conservation, when your investments should ai
15、m to preserve the capital you have, should take place one to three years before you retire. The exact timing of all these should take current market conditions into account, although Wright warns against risky betting on future growth. “Greed must not be allowed to blind prudence,“ he says. Whatever
16、 vehicles you choose for your retirement share-holding, be sure to take advantage of dollar-cost averaging. By investing a fixed amount at regular intervals, you“ll be able to avoid the risk of poorly timed investments by averaging out the peaks and valleys of the market. Plus, regular contributions
17、 will let you avoid the temptation to drop out when the market falls, and to buy too much when prices are high. Those who are well along the road to retirement may have cause for concern these days. The plunging stock and property markets have shrunk savings, for retirement and otherwise; and some p
18、eople have not planned for their retirement at all. You won“t be that rash, of course, but what if you“re already in mid-career and don“t have a retirement plan in place? If you don“t make some serious cuts in your spending and save heavily now, you“ll have to sacrifice in your golden years. Of cour
19、se, it“s better still to get off on the right foot by starting your planning early. “No one should have to compromise his living standards when he retires,“ says Wright. “Retirement is a time to really enjoy life. We have all worked so hard.“ And one of the things you should be working hard on fight
20、 now is planning for those days of enjoyment.(分数:15.00)(1).In the first stage of saving for retirement, people can take an aggressive investment strategy because(分数:3.00)A.they have a long-term regular savings plan in view.B.they can well stand losses that might occur.C.there is no risk in long-term
21、 investment.D.chances can balance possible risks.(2).To avoid the risk of poorly timed investments, one should(分数:3.00)A.adopt dollar-cost averaging strategy.B.set a limit to his investment at regular intervals.C.suppress the temptation to drop out untimely.D.stop buying shares when the prices are t
22、oo high.(3).What does the phrase “in your golden years“ (Line 3, Paragraph 4) mean?(分数:3.00)A.Youth.B.Middle age.C.Mid-career.D.Old age.(4).The author might agree to the argument that(分数:3.00)A.one will have to change his spending habits when growing old.B.it“s far better to end up with too much mon
23、ey than not enough.C.it“s advisable to open a savings account instead of buying stock shares.D.people should spend less on living after their retirement.(5).Which of the following might be an appropriate title for the text?(分数:3.00)A.Savings StrategyB.Enjoy Your Later YearsC.Plan for RetirementD.Ris
24、ky Stock Market五、Text 3(总题数:1,分数:15.00)In the 400s BC, the Sophists, a group of wandering teachers, began to teach in Athens. The Sophists claimed that they could teach any subject or skill to anyone who wished to learn it. They specialized in teaching grammar, logic, and rhetoric, subjects that eve
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- 公共 英语四 41 答案 解析 DOC
