1、公共英语四级听力-21 及答案解析(总分：100.00，做题时间：90 分钟)一、Listening Comprehens(总题数：0，分数：0.00)二、Part A(总题数：1，分数：25.00)Information About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _.
2、(2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：25.00）(1).Information About the ReportAccording to two n
3、ew studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _.
4、 (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_(2).Information About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular b
5、enefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_(3).Information About the Repo
6、rtAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involve
7、d in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_(4).Information About the ReportAccording to two new studies laughter can prolong (1) our life because it is good for our _. A good bout of laughter every day provides si
8、milarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_(5).Infor
9、mation About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of h
10、eart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_三、Part B(总题数：1，分数：25.00)填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_四、Part C(总题数：3，分数：50.00)(1).Judy Blume writes mostly about _.A. adults B. struggles in the
11、 work placeC. struggles for survival D. struggles for growing up（分数：5.00）A.B.C.D.(2).Which of the following is NOT the main topic mentioned in Judy Blumes book?A. Worries about not having friends. B. Worries about physical development.C. Worries about growing up. D. Worries about the food they eat.（
12、分数：5.00）A.B.C.D.(3).Why is she active against censorship of childrens book?A. Because she thinks its absurd.B. Because she thinks parents only want to satisfy their needs to control the children.C. Because her books suffer from censorship.D. Because most of her books are challenged by parents.（分数：5.
13、00）A.B.C.D.(1).Last year, how many flights traveled through O Hare according to the Federal Aviation Administration?A. 930,000. B. 970,000.C. 913,000. D. 914,000.（分数：5.00）A.B.C.D.(2).According to officials, what percentage of the flights at O Hare were delayed during the first seven months of this y
14、ear?A. 65%. B. 56%.C. 75%. D. 57%.（分数：5.00）A.B.C.D.(3).What is NOT included in the O Hare Modernization Act?A. Another runway will be built.B. Existing runways should be moved and extended.C. New buildings are planned.D. New highways are planned.（分数：5.00）A.B.C.D.(1).The passage mainly focuses on _.A
15、. the importance of TV B. the function of TVC. the production of TV D. the evolution of TV（分数：5.00）A.B.C.D.(2).What might be the obstacles for transmitting antenna and receiver antenna to get connected?A. Deep oceans. B. High mountains.C. Long rivers. D. Huts.（分数：5.00）A.B.C.D.(3).There are many ways
16、 to receive television signals. What is the latest way to receive television signals in the passage?A. Cable network. B. Satellite dish antennas.C. Electrons. D. Wires.（分数：5.00）A.B.C.D.(4).Which of the following is INCORRECT?A. All the satellite TV programs can be received for free.B. There are many
17、 TV stations now.C. There were fewer stations in the 1940s.D. When an American named Philo Farnsworth built the first working television receiver, he was only 21 years old.（分数：5.00）A.B.C.D.公共英语四级听力-21 答案解析(总分：100.00，做题时间：90 分钟)一、Listening Comprehens(总题数：0，分数：0.00)二、Part A(总题数：1，分数：25.00)Information
18、About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart pa
19、tients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：25.00）(1).Information About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day prov
20、ides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_ （
21、正确答案：heart）解析：听力原文Laughter is good for the heart because it prolongs life while depression increases the risk of an early death, according to two new studies.A good bout of laughter every day provides similar cardiovascular benefits as exercise because it stimulates the blood flow, said Michael Mill
22、er, who headed one research team at the University of Maryland.On the other hand, depression-or the lack of laughter-is often linked to unhealthy habits such as smoking and drug addiction and increases the risk of death by 44 percent, said Wen Jiang, who led a study of 1,000 heart patients for the U
23、niversity of North Carolina.Miller said laughter produced a “magnitude of change. in the endothelium. similar to the benefit we might see with aerobic activity, but without the aches, pains and muscle tension associated with exercise.“While laughter should not replace exercise, he said, “We do recom
24、mend that you try to laugh on a regular basis. Thirty minutes of exercise three times a week, and 15 minutes of laughter on a daily basis is probably good for the vascular system. /(2).Information About the ReportAccording to two new studies laughter can prolongour life because it is good for our _.
25、 (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve
26、our vascular system. (5) （分数：5.00）填空项 1:_ （正确答案：exercises）解析：(3).Information About the ReportAccording to two new studies laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-o
27、r the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It is suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_ （正确答案：unhealthy）解析：(4).Information About the ReportAccording to two new studie
28、s laughter can prolongour life because it is good for our _. (1) A good bout of laughter every day provides similarcardiovascular benefits as _. (2) On the other hand, depression-or the lack oflaughter-is often linked to _ habits. (3) The number of heart patients involved in the study is _. (4) It i
29、s suggested that one should laugh _ minutesa day to improve our vascular system. (5) （分数：5.00）填空项 1:_ （正确答案：1,000）解析：(5).Information About the ReportAccording (1) to two new studies laughter can prolongour life because it is good for our _. A good bout (2) of laughter every day provides similarcardi
30、ovascular benefits as _. On the other hand, de(3) pression-or the lack oflaughter-is often linked to _ habits.The number of heart patients (4) involved in the study is _. It is suggested that one should laugh _ minutesa day to im(5) prove our vascular system.（分数：5.00）填空项 1:_ （正确答案：15）解析：三、Part B(总题数
31、：1，分数：25.00)填空项 1:_ （正确答案：exercises and modest）解析：听力原文Children who drink more milk do not necessarily develop healthier bones, researchers said in a report that stresses exercise and modest consumption of calcium-rich foods such as tofu and broccoli.Appearing in the journal Pediatrics, the report dr
32、ew its conclusions from previously published studies and was written by researchers from the Physicians Committee for Responsible Medicine, which advocates a strict vegetarian diet.Some earlier studies that extoled dairy products as a calcium source had been funded at least in part by the dairy indu
33、stry.The U.S. government has gradually increased recommendations for daily calcium intake, largely from dairy products, of between 800 and 1,300 milligrams to promote healthy bones and prevent osteoporosis.But the Physicians Committees report said boosting consumption of milk or other dairy products
34、 was not necessarily the best way to provide the minimal calcium intake of at least 400 milligrams per day. Other ways to get the absorbable calcium found in one cup of cows milk include a cup of fortified orange juice, a cup of cooked kale or turnip greens, two packages of instant oats, two-thirds
35、cup of tofu, or 1-2/3 cup of broccoli, the report said.Several of the studies, which examined such factors as bone density and rate of fractures, concluded that exercise may be more important than increased calcium consumption in developing strong bones.Data was scarce on the effect of calcium intak
36、e for children younger than 7 years old, the report said. Dairy products provide 18 percent of the total energy and 25 percent of the total fat intake in the diets of American children, who are developing increasing rates of obesity, it said.In an editorial in the journal commenting on the report, F
37、rank Greer, a pediatrician at the University of Wisconsin in Madison, said the ideal way to achieve the goal of healthy bones is to make sure children exercise and consume up to 1,300 milligrams a day of calcium.填空项 1:_ （正确答案：2/3 cup.）解析：填空项 1:_ （正确答案：two packages）解析：填空项 1:_ （正确答案：more important tha
38、n）解析：填空项 1:_ （正确答案：1,300）解析：四、Part C(总题数：3，分数：50.00)(1).Judy Blume writes mostly about _.A. adults B. struggles in the work placeC. struggles for survival D. struggles for growing up（分数：5.00）A.B.C.D. 解析：听力原文American childrens writer Judy Blume has won many awards. Her books have sold more than seven
39、ty-five million copies. They have been published in more than twenty languages. Now the National Book Foundation will honor her with its two thousand four Medal for Distinguished Contribution to American Letters. Faith Lapidus has more about Judy Blume and her books.Judy Blume is sixty-six years old
40、. But book critics say this grandmother has never forgotten what it feels like to be a child. She writes mostly about the struggles of growing up. She published her first such book in nineteen sixty-nine.Judy Blume says she writes about real life and real feelings. And she says children recognize th
41、emselves and their own problems in her books. These are problems like not having friends, or worrying about physical development, or being afraid to grow up. Some of the children in her books are trying to understand why their parents have separated. Others are not sure about their religious beliefs
42、.Not everyone praises Judy Blume, however. Some parents feel that children should not read about some of the subjects that she writes about. Her books have often been removed from libraries or placed in restricted areas as a result of challenges by parents. The American Library Association says five
43、 of her books are among the one hundred most frequently challenged books.Not surprisingly, Judy Blume is active against censorship. She says people try to ban books because it satisfies their needs to feel in control of their childrens lives. She says they think if children dont read about a subject
44、, they wont know about it. She argues that children need to know about ideas different from those of their parents.Judy Blume is the first writer of young-adult literature to receive the National Book Foundation Medal. This honor was established in nineteen eighty-eight. It will be given at the Nati
45、onal Books Awards ceremony in New York City in November.(2).Which of the following is NOT the main topic mentioned in Judy Blumes book?A. Worries about not having friends. B. Worries about physical development.C. Worries about growing up. D. Worries about the food they eat.（分数：5.00）A.B.C.D. 解析：(3).W
46、hy is she active against censorship of childrens book?A. Because she thinks its absurd.B. Because she thinks parents only want to satisfy their needs to control the children.C. Because her books suffer from censorship.D. Because most of her books are challenged by parents.（分数：5.00）A.B. C.D.解析：(1).La
47、st year, how many flights traveled through O Hare according to the Federal Aviation Administration?A. 930,000. B. 970,000.C. 913,000. D. 914,000.（分数：5.00）A. B.C.D.解析：听力原文O Hare Airport and Hartsfield-Jackson International Airport in Atlanta, Georgia each claims to be the worlds busiest airport. O Hare may be the worlds busiest airport. Or it may be only the second busiest. But everything about it is big.The Federal Aviation Administration says more than nine hundred thirty thousand flights traveled through
