1、托福-练习三十四及答案解析(总分：30.00，做题时间：90 分钟)一、BPassage 1/B(总题数：2，分数：10.00)（分数：5.00）(1).What are the students discussing? A. A lecture that they will attend next week B. Topics to review for an upcoming test C. Their vacation in the mountains D. A report that they are working on（分数：1.00）A.B.C.D.(2).Listen agai
2、n to part of the conversation. Then answer the question.Why does the man say this: A. To invite the woman to join him at hockey practice B. To inform the woman that he has only a little time now C. To let the woman know that she worries too much D. To suggest a different topic for their presentation
3、（分数：1.00）A.B.C.D.(3).What types of data will the students use in their presentation? Click on 2 answers. The history of eruptions in the area Photographs that the man took A series of pictures of the mountain （分数：1.00）A.B.C.D.(4).What is the mans opinion of the photographs? A. They are the best phot
4、ographs he has ever taken. B. They are nice, but they do not support their topic. C. They show the mountains changes very well. D. They would be better if they were in color.（分数：1.00）A.B.C.D.(5).Why does the man say this: A. To move on to another question B. To imply that they need more information
5、C. To state that he will speak first D. To conclude the conversation（分数：1.00）A.B.C.D.（分数：5.00）(1).What is the talk mainly about? A. Epidemics around the world B. Why diseases change over time C. How epidemiologists gather data D. Experimental studies of diseases（分数：1.00）A.B.C.D.(2).How does the spea
6、ker develop the topic? A. By describing the history of epidemics B. By explaining different research methods C. By comparing two treatment groups D. By presenting statistical evidence（分数：1.00）A.B.C.D.(3).According to the talk, why do some epidemiologists observe two groups of people? A. To learn why
7、 some people get a disease and others do not B. To compare different peoples attitudes toward work C. To explain why some people take better care of themselves D. To understand cultural differences in approaches to disease（分数：1.00）A.B.C.D.(4).Which of the following statements describes experimental
8、epidemiology? A. Researchers use statistics to describe the trend of a disease over time. B. Researchers examine the eating habits of sick and well people. C. Researchers observe subjects without interfering in the process. D. Researchers intervene to test a hypothesis about cause and effect.（分数：1.0
9、0）A.B.C.D.(5).Listen again to part of the talk. Then answer the question.Why does the speaker talk about her own work? A. To show how one organization uses various approaches to epidemiology B. To describe her organizations efforts to develop a way to quit smoking C. To inform the students that she
10、prefers doing research to giving lectures D. To encourage students to work at her organization after they graduate（分数：1.00）A.B.C.D.二、BPassage 2/B(总题数：2，分数：10.00)（分数：5.00）(1).According to the discussion, why is improvisation difficult to define? Click on 2 answers. There are several kinds of improvis
11、ation. People disagree about what improvisation is. No musicians have recorded improvisation. （分数：1.00）A.B.C.D.(2).How does the professor develop the topic of improvisation? A. By analyzing improvisation in classical music B. By giving the correct definition of improvisation C. By discussing the his
12、tory of improvisation D. By demonstrating improvisation on the organ（分数：1.00）A.B.C.D.(3).Why does the professor say this: A. To state that the Greeks invented improvisation B. To provide historical examples of improvisation C. To compare improvisation with other musical methods D. To argue that one
13、form of improvisation is superior to others（分数：1.00）A.B.C.D.(4).Based on the information in the discussion, indicate whether each phrase below describes prehistoric people or jazz musicians.For each phrase, click in the correct box.PrehistoricpeopleJazzmusiciansImprovised music for work,play, and wa
14、rCombined their own musicwith stock melodiesUsed music as a force toshow relationshipsImprovised on the musicof other bands（分数：1.00）A.B.C.D.(5).What point does the professor make about early jazz improvisation? A. Jazz musicians copied the music of ancient people. B. Jazz was an entirely new way to
15、compose music. C. Improvisation changed the nature of popular music. D. Trained musicians brought improvisation to jazz.（分数：1.00）A.B.C.D.（分数：5.00）(1).What is the main idea of the lecture? A. Children do not care much about the feelings of other people. B. Children need guidance in developing their s
16、ocial skills. C. Children become more egocentric when they are teenagers. D. Children go through stages of mental and social development.（分数：1.00）A.B.C.D.(2).At what age is a child least able to recognize the thoughts of other people? A. Four B. Eight C. Twelve D. Fifteen（分数：1.00）A.B.C.D.(3).Listen
17、again to part of the lecture. Then answer the question.Why does the professor say this: A. To explain why children are sometimes rude to other people B. To illustrate how children must experience directly to understand C. To give examples of enjoyable classroom activities for children D. To challeng
18、e a conventional theory about abstract thinking（分数：1.00）A.B.C.D.(4).What can be inferred about children in the multiple role-taking stage? A. They know that different social roles require certain behavior. B. They prefer taking roles that younger children will admire. C. They understand that every p
19、erson has only one social role. D. They know how to amuse their classmates by role playing.（分数：1.00）A.B.C.D.(5).According to the professor, which of the following statements describe stages in the social development of children? Click on 2 answers. The child understands actions as others see them. T
20、he child prefers large crayons and paint brushes. The child is interested in learning about nature. （分数：1.00）A.B.C.D.三、BPassage 3/B(总题数：2，分数：10.00)（分数：5.00）(1).Why does the woman go to see her professor? A. To find out how her project will be graded B. To discuss a problem she has with her boss C. T
21、o talk about ideas for her project D. To ask for more time to finish her project（分数：1.00）A.B.C.D.(2).When is the project plan due? A. The following day B. The next week C. At the end of the month D. On the first of next month（分数：1.00）A.B.C.D.(3).Listen again to part of the conversation. Then answer
22、the question.Select the sentence that best expresses how the woman probably feels. A. She regrets disagreeing with the professor. B. She does not understand the assignment. C. She enjoys what she is learning in the class. D. She is concerned about her grade.（分数：1.00）A.B.C.D.(4).What topics will the
23、woman write about? Click on 2 answers. An economic development organization Why all women should have an education How an organization promotes social change （分数：1.00）A.B.C.D.(5).What information will the woman include in her project? Click on 2 answers. Photographs of art Comparison of two markets
24、An interview with her boss （分数：1.00）A.B.C.D.（分数：5.00）(1).According to the professor, how did the cycle of volcanic eruptions begin? A. Several earthquakes and avalanches occurred. B. A cloud of ash traveled around the world. C. The volcano erupted suddenly without warning. D. Magma poured out of the
25、 top of the mountain.（分数：1.00）A.B.C.D.(2).Why does the professor say this: A. To tell of his own experience of watching the mountain B. To explain why the events were a surprise to geologists C. To show that the eruptions interested a lot of people D. To criticize the media for interfering with the
26、scientists（分数：1.00）A.B.C.D.(3).Listen again to part of the lecture. Then answer the question,What does the professor mean when he says this: A. It had been a long time since the previous eruption of St. Helens. B. The public suddenly lost interest in watching the eruptions. C. Scientists took a few
27、days off before continuing their work. D. The small eruptions paused briefly just before the major eruption.（分数：1.00）A.B.C.D.(4).What were some effects of the eruption? Click on 2 answers. Geologists were criticized for failing to predict it. Large numbers of animals and people were killed. The ash
28、cloud affected weather around the world. （分数：1.00）A.B.C.D.(5).What can be concluded about Mount St. Helens? A. It is a harmless inactive volcano. B. It is no longer of interest to geologists. C. It is the largest volcano in the world. D. It is likely to erupt in the future.（分数：1.00）A.B.C.D.托福-练习三十四答
29、案解析(总分：30.00，做题时间：90 分钟)一、BPassage 1/B(总题数：2，分数：10.00)（分数：5.00）(1).What are the students discussing? A. A lecture that they will attend next week B. Topics to review for an upcoming test C. Their vacation in the mountains D. A report that they are working on（分数：1.00）A.B.C.D. 解析：解析 1-5 W: Am I ever g
30、lad to see you! We dont have much time left before our presentation-only the rest of this week. Lets talk about what we still need to do. M: Do we have that much left to do? I was under the impression were just about ready. Ive got all my data, the graphs and photos of the mountain. W: Lets-wed bett
31、er go over what we have. M: Oh, sure, but I have hockey practice in half an hour. W: This wont take long, I hope. Now, Ill do the introduction. First, Ill talk about how the geologists at Volcano Watch detected another tiny earthquake on Stone Peak two weeks ago. The quake registered only point 8, b
32、ut they think it could be part of a series of small quakes that precede an eruption. Then Ill give the history of the eruptions in that area. M: How far are you gonna go back? W: Two thousand years. Thats the last time Stone Peak erupted. I wont go over every little eruption, just the six or seven m
33、ajor ones in the range. Then . I guess at that point Ill turn it over to you. M: And Ill show my graphs-no, maybe the pictures first, at least this one of the bulge. George Davidson at the observatory gave me all these photographs. I still have to make slides out of em, and of my graphs, too, but th
34、at wont take long. Arent they awesome? Some are really good shots of the mountain-you can really see how much the bulge has grown. W: Its grown . how much, a few inches? M: A few inches a year, for the past six years. The bulge is forming cause a chamber of magma below the surface is growing. Earths
35、 crust is being bent and bent-a few inches a year is a lot of bending-and sooner or later, itll start to break open. Then therell be a show! First Ill show them-first the color picture, then the graphs showing the eruptions over the past six years . and then the series of black-and-white photos show
36、ing the bulge. It shows up better in black and white. W: Then . when youre through with the slides, we should probably allow enough time for questions. M: Yeah, that sounds good. That should about wrap it up. See? Were all set to go. 1. What are the students discussing? The students are discussing a
37、 report that they are working on. The woman says: We son t have much time left before our presentation.; Lets talk about what we still need to do. The man says: Ive got all my data, the graphs and photos of the mountain.(2).Listen again to part of the conversation. Then answer the question.Why does
38、the man say this: A. To invite the woman to join him at hockey practice B. To inform the woman that he has only a little time now C. To let the woman know that she worries too much D. To suggest a different topic for their presentation（分数：1.00）A.B. C.D.解析：解析 Listen again to part of the conversation.
39、 Then answer the question. “Lets-wed better go over what we have.“ “Oh, sure, but I have hockey practice in half an hour.“ Why does the man say this: “Oh, sure, but I have hockey practice in half an hour.“ The mans purpose is to inform the woman that he has only a little time now because he: must le
40、ave soon to go to hockey practice. (2.5)(3).What types of data will the students use in their presentation? Click on 2 answers. The history of eruptions in the area Photographs that the man took A series of pictures of the mountain （分数：1.00）A. B.C. D.解析：解析 What types of data will the students use in
41、 their presentation? The students will use the history of eruptions in the area: .Ill give the history of the eruptions in that area. They will also use a series of pictures of the mountain: .Ill show them- first the color picture, and then the series of black-and-white photos showing the bulge.(4).
42、What is the mans opinion of the photographs? A. They are the best photographs he has ever taken. B. They are nice, but they do not support their topic. C. They show the mountains changes very well. D. They would be better if they were in color.（分数：1.00）A.B.C. D.解析：解析 What is the mans opinion of the
43、photographs? The mans opinion is that the photographs show the mountains changes very well. The man says: Arent they awesome? Some really good shots of the mountain-you can really see how much the bulge has grown.(5).Why does the man say this: A. To move on to another question B. To imply that they
44、need more information C. To state that he will speak first D. To conclude the conversation（分数：1.00）A.B.C.D. 解析：解析 Why does the man say this: “That should about wrap it up. See? Were all set to go.“ The mans purpose is to conclude the conversation. We “re all set to go means they are ready for their
45、presentation and can stop planning now. (2.5)（分数：5.00）(1).What is the talk mainly about? A. Epidemics around the world B. Why diseases change over time C. How epidemiologists gather data D. Experimental studies of diseases（分数：1.00）A.B.C. D.解析：解析 6-10 Epidemiology is the field of medicine that deals
46、with epidemics-outbreaks of disease that affect large numbers of people. As an epidemiologist, I look at factors involved in the distribution and frequency of disease in human populations. For example, what is it about what we do, or what we eat, or what our environment is, that leads one group of p
47、eople to be more likely-or less likely-to develop a disease than another group of people? Its these factors that we try to identify. We gather data in a variety of ways. One way is through what we call descriptive epidemiology, or looking at the trends of diseases over time, as well as . uh . trends
48、 of diseases in one population relative to another. Statistics are important in descriptive epidemiology, because numbers are a useful way to simplify information. A second approach is observational epidemiology, where we observe what people do. We take a group of people who have a disease and a group of people who dont have a disease. We look at their patterns of eating or drinking and their medical history. We also take a group of people whove been exposed to something-for example, smoking-and a group of people who havent, and then observe them over tim
