[外语类试卷]托福（听力）模拟试卷1及答案与解析.doc

1、托福（听力）模拟试卷 1及答案与解析 0 Listen to a conversation on campus between two students. Man: Wait up. I need to ask you about something. Woman: Oh, hi Jack. Man: Hi. Listen, I was just wondering whether you understood what Professor Carson was saying about the review session next Monday. Woman: Sure. Why? Man

2、: Well, the way I get it, its optional. Woman: Right. He said if we didnt have any questions, we should just use the time to study on our own. Man: Okay. Thats what I thought. Maybe Ill just skip it then. Woman: Well, its up to you, but the thing is . sometimes at a review session, someone else will

3、 ask a question, and, you know, the way the professor explains It, its really helpful, I mean, to figure out what he wants on the test. Man: Oh I didnt think about it that way, but it makes sense. So, youre going to go then. Woman: Absolutely. Urn, Ive had a couple of other classes with Carson and t

4、he review sessions always helped get me organized for the test. Man: Oh. Woman: And, if youve missed any of the lectures, he usually has extra handouts from all the classes. So . Man: Well, I havent missed any of the sessions. Woman: Me neither. But Im still going to be there. Look, uh, if its like

5、the other review sessions, the first hour hes going to go over the main points for each class, kind of like an outline of the course. Then from five-thirty to six-thirty, hell take questions. Thats the best part. And the last half hour, hell stay for individual conferences with people who need extra

6、 help. I usually dont stay for that. Man: Okay. So we just show up at the regular time and place for class? Woman: Or not, if you decide to study on your own. Man: Right. But, dont you think hell notice whos there? Woman: He said he wasnt going to take attendance. Man: Yeah, but still . Woman: Its a

7、 fairly large class. Man: But if hes grading your final and he remembers you were at the review, it might make a difference. Woman: Maybe. I think the important thing is just to study really hard and do your best. But, the review sessions help me study. I think theyre really good. Man: Okay. Thanks.

8、 I guess Ill go, too. Woman: So Ill see you there. Man: Yeah, I think I. Id better go. 1 Why does the man want to talk with the woman? （ A） To ask her to help him study for the exam （ B） To get some handouts for a class he has missed （ C） To clarify his understanding of the review session （ D） To fi

9、nd out her opinion of Professor Carson 2 Why does the woman think that the review session will be helpful? （ A） Because she has some questions that she wants to ask the professor （ B） Because Professor Carson will tell them some of the test questions （ C） Because it helps to hear the answers to ques

10、tions that other people ask （ D） Because she needs an individual conference with the professor 3 Why does the man decide to go to the review session? （ A） Because the review session will make up for absences （ B） Because the woman convinces him that it is a good idea （ C） Because the professor has r

11、ecommended the session （ D） Because he needs help to organize his class notes 4 Listen again to part of the conversation. Then answer the following question. Woman: He said he wasnt going to take attendance. Man: Yeah, but still. Woman: Its a fairly large class. Why does the man say this: “Yeah, but

12、 still.“? （ A） He thinks that the professor will notice if a student is absent. （ B） He agrees with the woman about the attendance policy. （ C） He wants to change the subject that they are discussing. （ D） He tries to encourage the woman to explain her opinion. 4 Listen to part of a lecture in a zoo

13、logy class.Professor:As you know from the textbook, mimicry isnt limited to insects, but its most common among them, and by mimicry Im referring to the likeness between two insects that arent closely related but look very much alike. The insects that engage in mimicry are usually very brightly color

14、ed. One of the insects, the one thats characterized by an unpleasant taste, a bad smell, a sting or bite, that insect is called the model. The mimic looks like the model but doesnt share the characteristic that protects the model from predators. But, of course, the predators associate the color patt

15、ern or some other trait with the unpleasant characteristic and leave both insects alone.Henry Bates was one of the first naturalists who noticed that some butterflies that closely resembled each other were actually unrelated, so mimicry in which one species copies another is called Batesian mimicry.

16、 I have some lab specimens of a few common mimics in the cases here in the front of the room, and I want you to have a chance to look at them before the end of the class. Theres a day flying moth with brown and white and yellow markings. And this moth is the model because it has a very unpleasant ta

17、ste and tends to be avoided by moth eaters. But youll notice that the swallowtail butterfly mounted beside it has very similar coloration, and actually the swallowtail doesnt have the unpleasant taste at all. Another example is the monarch butterfly, which is probably more familiar to you since they

18、 pass through this area when theyre migrating. But you may not know that they have a very nasty taste because I seriously doubt that any of you have eaten one. But for the predators who do eat butterflies, this orange and black pattern on the monarch is a warning signal not to sample it. So, the vic

19、eroy butterfly here is a mimic. Same type of coloring but no nasty taste. Nevertheless, the viceroy isnt bothered by predators either, because its mistaken for the monarch. So how does a predator know that the day flying moth and the monarch arent good to eat? Well, a bird only has to eat one to sta

20、rt avoiding them all models and mimics.A stinging bumblebee is another model insect. The sting is painful and occasionally even fatal for predators. So there are a large number of mimics. For example, theres a beetle that mimics bumblebees by beating its wings to make noise, and the astonishing thin

21、g is that its able to do this at the same rate as the bumblebee so exactly the same buzzing sound is created. I dont have a specimen of that beetle, but I do have a specimen of the hoverfly, which is a mimic of the honeybee, and it makes a similar buzzing sound, too. When you compare the bee with th

22、e fly, youll notice that the honeybee has two sets of wings, and the hoverfly has only one set of wings, but as you can imagine, the noise and the more or less similar body and color will keep most predators from approaching closely enough to count the wings.Some insects without stingers have body p

23、arts that mimic the sharp stinger of wasps or bees. Although the hawk moth is harmless, it has a bundle of hairs that protrudes from the rear of its body. The actual purpose of these hairs is to spread scent, but to predators, the bundle mimics a stinger closely enough to keep them away, especially

24、if the hawk moth is moving in a threatening way as if it were about to sting. Theres a hawk moth here in the case, and to me at least, it doesnt look that much like the wasp mounted beside it, but remember when youre looking at a specimen, its stationary, and in nature the movement is also part of t

25、he mimicry.Oh, heres a specimen of an ant, and this is interesting. Another naturalist, Fritz Muller, hypothesized that similarity among a large number of species could help protect all of them. Heres what he meant. After a few battles with a stinging or biting ant, especially when the entire colony

26、 comes to the aid of the ant being attacked, a predator will learn to avoid ants, even those that dont sting or bite, because they all look alike and the predator associates the bad experience with the group. And by extension, the predator will also avoid insects that mimic ants, like harmless beetl

27、es and spiders.Look at this. I have a drawing of a specimen of a stinging ant beside a specimen of a brownish spider and the front legs of the spider are mounted so they look more like antennae because thats just what the spider does to mimic an ant. That way it appears to have six legs like an ant

28、instead of eight like a spider.Okay, we have about ten minutes left, and I want you to take this opportunity to look at the specimen cases here in the front of the room. Ill be available for questions if you have them. How about forming two lines on either side of the cases so more of you can see at

29、 the same time? 5 What is the lecture mainly about? （ A） An explanation of mimicry among species in the insect world （ B） A comparison of the features of the viceroy and the monarch butterfly （ C） A hypothesis to explain why similarity among species protects them all （ D） A response to questions abo

30、ut the specimens displayed in the cases 6 How does the professor organize the lecture? （ A） He shows specimens to demonstrate his points. （ B） He compares the theories of two naturalists. （ C） He classifies different types of mimics. （ D） He puts the ideas in chronological order. 7 According to the

31、lecture, what are some characteristics of a model? Click on 3 answer choices. （ A） A pair of wings （ B） A foul odor （ C） A bad taste （ D） A drab color （ E） A painful sting 8 How does the professor explain Batesian mimicry? （ A） By giving a precise definition （ B） By providing several examples （ C） B

32、y referring to the textbook （ D） By contrasting it with another hypothesis 9 In the lecture, the professor explains Fritz Mullers hypothesis. Indicate whether each of the following supports the hypothesis. Click in the correct box for each choice. A Predators avoid species of insects that have harme

33、d them in the past by stinging or biting them. （ A） YES （ B） NO 10 B Predators may be killed when an entire colony of insects joins forces against them. （ A） YES （ B） NO 11 C Predators leave harmless insects alone if they are part of a group that includes stinging insects. （ A） YES （ B） NO 12 D Pred

34、ators will refrain from attacking harmless insects if they look like insects that have stung them before. （ A） YES （ B） NO 13 E Predators protect themselves from harmful insects by stinging or biting them before they are attacked. （ A） YES （ B） NO 14 Indicate whether each insect below refers to a mo

35、del or a mimic. Click in the correct box for each phrase. Insects A A viceroy butterfly （ A） Mimic （ B） Model 15 B A brown spider （ A） Mimic （ B） Model 16 C A hawk moth （ A） Mimic （ B） Model 17 D A bumblebee （ A） Mimic （ B） Model 18 E A biting ant （ A） Mimic （ B） Model 19 Why does the man go to see

36、his professor? （ A） To borrow a reference book that he needs （ B） To ask a question about the material （ C） To get advice about studying for a test （ D） To pick up some handouts from the class 20 Why does the student say this: （ A） To challenge the professors idea （ B） To encourage the professor to

37、explain （ C） To try to change the subject （ D） To interrupt the professor respectfully 21 How should Jack prepare for the test? （ A） He should memorize the material in the book. （ B） He should study the questions before the test. （ C） He should organize his notes by topic. （ D） He should not change

38、his usual study plan. 22 Why does the professor give open-book tests? （ A） Because she believes it helps students with memorization （ B） Because her tests contain a large number of small facts （ C） Because her students are more successful with the course （ D） Because she thinks it provides a better

39、learning experience 托福（听力）模拟试卷 1答案与解析 0 【听力原文】 Listen to a conversation on campus between two students. Man: Wait up. I need to ask you about something. Woman: Oh, hi Jack. Man: Hi. Listen, I was just wondering whether you understood what Professor Carson was saying about the review session next Mon

40、day. Woman: Sure. Why? Man: Well, the way I get it, its optional. Woman: Right. He said if we didnt have any questions, we should just use the time to study on our own. Man: Okay. Thats what I thought. Maybe Ill just skip it then. Woman: Well, its up to you, but the thing is . sometimes at a review

41、session, someone else will ask a question, and, you know, the way the professor explains It, its really helpful, I mean, to figure out what he wants on the test. Man: Oh I didnt think about it that way, but it makes sense. So, youre going to go then. Woman: Absolutely. Urn, Ive had a couple of other

42、 classes with Carson and the review sessions always helped get me organized for the test. Man: Oh. Woman: And, if youve missed any of the lectures, he usually has extra handouts from all the classes. So . Man: Well, I havent missed any of the sessions. Woman: Me neither. But Im still going to be the

43、re. Look, uh, if its like the other review sessions, the first hour hes going to go over the main points for each class, kind of like an outline of the course. Then from five-thirty to six-thirty, hell take questions. Thats the best part. And the last half hour, hell stay for individual conferences

44、with people who need extra help. I usually dont stay for that. Man: Okay. So we just show up at the regular time and place for class? Woman: Or not, if you decide to study on your own. Man: Right. But, dont you think hell notice whos there? Woman: He said he wasnt going to take attendance. Man: Yeah

45、, but still . Woman: Its a fairly large class. Man: But if hes grading your final and he remembers you were at the review, it might make a difference. Woman: Maybe. I think the important thing is just to study really hard and do your best. But, the review sessions help me study. I think theyre reall

46、y good. Man: Okay. Thanks. I guess Ill go, too. Woman: So Ill see you there. Man: Yeah, I think I. Id better go. 【知识模块】 听力 1 【正确答案】 C 【知识模块】 听力 2 【正确答案】 C 【知识模块】 听力 3 【正确答案】 B 【知识模块】 听力 4 【正确答案】 A 【知识模块】 听力 4 【听力原文】 Listen to part of a lecture in a zoology class. Professor: As you know from the text

47、book, mimicry isnt limited to insects, but its most common among them, and by mimicry Im referring to the likeness between two insects that arent closely related but look very much alike. The insects that engage in mimicry are usually very brightly colored. One of the insects, the one thats characte

48、rized by an unpleasant taste, a bad smell, a sting or bite, that insect is called the model. The mimic looks like the model but doesnt share the characteristic that protects the model from predators. But, of course, the predators associate the color pattern or some other trait with the unpleasant ch

49、aracteristic and leave both insects alone. Henry Bates was one of the first naturalists who noticed that some butterflies that closely resembled each other were actually unrelated, so mimicry in which one species copies another is called Batesian mimicry. I have some lab specimens of a few common mimics in the cases here in the front of the room, and I want you to have a chance to look at them before the end of the class. Theres a day flyi