托福-30及答案解析.doc

1、托福-30 及答案解析(总分：120.00，做题时间：90 分钟)一、BSPEAKING/B(总题数：0，分数：0.00)二、BSpeaking Questi(总题数：1，分数：20.00)1.Listen for a question about a familiar topic.（分数：20.00）_三、BSpeaking Questi(总题数：1，分数：20.00)2.Please listen carefully.（分数：20.00）_四、BSpeaking Questi(总题数：1，分数：20.00)3.Read a short passage and listen to a tal

2、k on the same topic.Now listen to two students who are talking about the plan.（分数：20.00）_五、BSpeaking Questi(总题数：1，分数：20.00)4.Please listen carefully.Please listen carefully.（分数：20.00）_六、BSpeaking Questi(总题数：1，分数：20.00)5.Now listen to a short conversation between a student and his friend.（分数：20.00）_七

3、、BSpeaking Questi(总题数：1，分数：20.00)6.In this question, you will listen to part of a lecture. You will then he asked to summarize important information from the lecture. To make this practice more like the real test, cover the question during the lecture. After you hear the question, you have 20 second

4、s to prepare your response and 60 seconds to speak.（分数：20.00）_托福-30 答案解析(总分：120.00，做题时间：90 分钟)一、BSPEAKING/B(总题数：0，分数：0.00)二、BSpeaking Questi(总题数：1，分数：20.00)1.Listen for a question about a familiar topic.（分数：20.00）_正确答案：(In my country, birthdays are celebrated every year but the most important birthd

5、ay for a young girl is the quinceanera, the birthday when shes eighteen. This is celebrated with a church service. The girl wears a white dress, kind of like a wedding dress, and several attendants accompany her to the altar where the priest talks with her about becoming an adult woman. After the se

6、rvice, the whole family celebrates with friends. And theres music and dancing and food. Traditionally, only relatives and close friends are invited to the church service, but many more people attend the party afterward. Um, in the old days, the ceremony presented the girl to society for marriage pro

7、posals but now shes considered the appropriate age to begin dating.)解析：三、BSpeaking Questi(总题数：1，分数：20.00)2.Please listen carefully.（分数：20.00）_正确答案：(I prefer to wait a long time and think about my options before making a decision rather than choosing right away. One reason is that it helps me to make

8、 the right decision. If I have time, I can consider all my options carefully, think about the consequences of certain actions, and make calm and rational choices. Another reason is that it saves me from worrying later. Theres nothing worse than making a decision too quickly, and then spending your w

9、hole time regretting it. By taking my time, I know that even if my decision doesnt work out, at least I havent been rash or careless about it. In conclusion, I like to take my time when I have to make an important decision.)解析：四、BSpeaking Questi(总题数：1，分数：20.00)3.Read a short passage and listen to a

10、talk on the same topic.Now listen to two students who are talking about the plan.（分数：20.00）_正确答案：(The man is glad that an alternative to the seven-day meal plan is now available for students who live in the dorms. Hell purchase the five-day meal plan, which provides three meals on weekdays and the o

11、ption to buy meals on the weekends for $3 each. The new five-day meal plan is better for him because he likes to go home every other weekend, and when hes on campus, he likes to go out with his friends. So he wasnt taking advantage of the cafeteria on the weekends even though he was paying for it. T

12、he Student Union has fast-food as well as booths in the food court for Chinese or Mexican food or even a salad bar. Besides, if he wants to eat in the cafeteria on a weekend, he can buy a meal. He should save about $ 48 a month by using the new plan, and he can use that money to eat out.)解析：听力原文 M:

13、I dont like to cook, but I dont like to eat in the cafeteria every day either. W: True. The food does get kind of.same old same old. M: My point exactly. And besides, I go home about every other weekend, so paying for my meals when Im not there doesnt make a lot of sense. W: Right. So youll probably

14、 sign up for the five-day plan next semester. M: I already did. If I want to eat in the cafeteria some weekend, I can just buy a meal, but Id probably go out somewhere with my friends if Im here over the weekend. W: Well, I dont go home on the weekends as much as you do, but I still eat out a lot on

15、 the weekends. M: So the five-day plan might work out better for you, too. Im really glad to have the option.五、BSpeaking Questi(总题数：1，分数：20.00)4.Please listen carefully.Please listen carefully.（分数：20.00）_正确答案：(The professor explains that prophecies can be self-fulfilling, because people tend to chan

16、ge the way they act to fit the prophecy. He describes a study conducted in a classroom to show how this works. According to the lecture, the classroom teacher was told that some students were more promising than others. Even though these so-called promising students were actually chosen randomly, th

17、ey did much better than the other students because the teacher gave them more special treatment. He thought they were supposed to be better than the other kids, so he tried harder to support them. He gave them more eye contact and that sort of thing.)解析：听力原文 There was one particularly interesting re

18、search paper done on how self- fulfilling prophecies work. What they did was take a bunch of students with roughly the same ability and put them in the same room. They then told the teacher that a select few of the students were about to blossom and become really top students. They came back a few m

19、onths later and tested the students, and the selected “promising“ students had all done exceptionally compared to their peers. Remember, these students were chosen randomly. But they did actually end up performing better than the others. So, why did that happen? Well, when the teacher was told that

20、some of the students were really promising, he went out of his way to help those particular students. He gave them more attention, made more eye contact with them and spoke to them directly more often. And the result was that the prophecy became self-fulfilling. The “promising kids“ did better not b

21、ecause they were any more able than the other students, but because the teacher thought they were and gave them special treatment.六、BSpeaking Questi(总题数：1，分数：20.00)5.Now listen to a short conversation between a student and his friend.（分数：20.00）_正确答案：(The mans problem is that he hasnt been very succe

22、ssful meeting people and making friends. Hes been on campus for an entire semester, and the womans the only friend he has. She suggests that he participate in some clubs, but hes reluctant to spend the time required for meetings. The woman plays inter-mural basketball. She says that there are a lot

23、of sports options at the Recreation Center. Another possibility that she recommends is for the man to join a study group. That way, hed meet some serious students and hed still be using the time to study for classes while he was getting to know people. I think that the man should join a group to pla

24、y sports for an hour twice a week because he probably needs the exercise, and he should also try to get into a study group because hell probably have more in common with the people who are using their time to study for their classes.)解析：听力原文 Student: Can you believe that Ive been here almost a whole

25、 semester and youre the only friend Ive made. Friend: No. How can that be? Student: I dont know. You know me better than anyone here at school. I thought maybe you could give me some advice. Friend: Sure. Um, well, do you belong to any clubs or any organizations on campus? Thats always a good way to

26、 meet people. Student: No. I dont have a lot of time to, you know, go to meetings. Friend: Neither do I, but I do play inter-mural sports. Student: Whats that? Friend: Its just a group that meets regularly to play basketball. Of course, there are lots of other teams, besides basketball, I mean. You

27、could join a football team, or soccer.uh, baseball, volleyball. Just go over to the Recreation Center and sign up. Theyll put you on a team. You could use some time away from the books. Student: Id like to do that, but. Friend: Well, since you dont want to take time away from your studies, why dont

28、you join a study group, or get one going in one of your classes? That way, you wouldnt feel like you are wasting time, and besides, the people you meet will be serious students, so maybe they would be better friends for you anyway.七、BSpeaking Questi(总题数：1，分数：20.00)6.In this question, you will listen

29、 to part of a lecture. You will then he asked to summarize important information from the lecture. To make this practice more like the real test, cover the question during the lecture. After you hear the question, you have 20 seconds to prepare your response and 60 seconds to speak.（分数：20.00）_正确答案：(

30、Ocean water is clear when there are no particles suspended in it, so light is able to pass through. Some water is green because of a mixture of blue light from scattered sunlight and yellow pigment from phytoplankton, the floating plant life. Some water is brown or brownish red because of the presen

31、ce of large quantities of brown algae, which contain brown pigments. Some water is blue because of the scattering of sunlight by tiny particles in the water; blue light is distributed easily because it has a short wavelength.)解析：听力原文 Ocean scientists study several physical properties of water, inclu

32、ding transparencyor water clarityand color. Clear water indicates an absence of particles suspended in the water that would affect the ability of light to pass through it. Water clarity determines how much plant growth there may be in an ocean region. Plant growth usually depends on how deep the sun

33、light will reach: the clearer the water, the deeper the light will penetrate. The color of seawater varies a lot from place to place. For example, the water of the Gulf Stream in the Atlantic Ocean is a deep indigo blue, while a similar current in the Pacific off Japan is called the Black Stream bec

34、ause of the very dark color of its water. Along many coasts, the water is green. The green color is a mixture of bluedue to the scattering of sunlight in the waterand the soluble yellow pigment associated with phytoplankton, the floating plant life. In some places, the water is brown or brownish red

35、. Brown or brownish red water gets its color from large quantities of certain types of microscopic brown algae. Brown algae are common along temperate coasts, where the water is cool. Their brown color comes from the brown pigments they contain. A bucket of water scooped from the surface of the sea

36、may contain millions of microscopic brown algae. In tropical or subtropical regions, various shades of blue are common. The blue color results from the scattering of sunlight by tiny particles suspended in the water, or by molecules of the water itself. Blue light has a short wave length, and because of this, blue light is more readily distributed than light of longer wavelengths. Therefore, the ocean appears blue for the same reason that the sky does. Using points and examples from the lecture, explain why some ocean water is clear and why some water is a certain color.