1、托福模拟试卷 27及答案与解析 0 Narrator Listen to a conversation between two students. Now get ready to answer the questions. You may use your notes to help you answer. 1 What problem does the man have? （ A） He found the computer center closed early. （ B） He has not finished his paper yet. （ C） He had to stay up
2、 late typing his paper. （ D） His computer is not workin 2 What did Sarah have to do in order to finish her economics project? （ A） Draw her own charts and graphs. （ B） Go to the computer center for assistance. （ C） Wait until 9:30 for a computer. （ D） Ask her professor for advic 3 Why will Bob and S
3、arah write a letter to the dean about the computer center? （ A） To ask for permission to use it at special hours. （ B） To get the broken computers removed. （ C） To complain about the technical assistant. （ D） To request additional computers and longer hours. 4 What are the two main problems about th
4、e computer center? （ A） So many students have to finish their homework on computers. （ B） The computer center is closed so early. （ C） There are so few computers, and they are always broken. （ D） Very few students come back. 5 What does Sarah mean when she says this? （ A） Sarah explains that she doe
5、snt have enough time to write a letter. （ B） Sarah believes that getting more signatures will be more persuasive. （ C） Sarah thinks that other students have the same problem. （ D） Sarah feels that she is afraid of writing a letter. 5 Narrator Listen to a conversation between a student and a academic
6、 adviser. Now get ready to answer the questions. You may use your notes to help you answer. 6 What are the speakers mainly discussing? （ A） The adviser directs the student on how to get a Bachelor of Arts in English. （ B） The adviser gives some advice to the student about her courses. （ C） The advis
7、er explains the courses and class grades in detail. （ D） The adviser instructs the student on how to pay her tuition. 7 What degree has Miss Wu got now? （ A） Masters in Education. （ B） Bachelor of Arts in English. （ C） Doctorial Degree in Education. （ D） Master of Arts degree in Englis 8 How many cr
8、edit hours must a full-time student have in one semester? （ A） More than 36. （ B） About 12. （ C） No less than 12. （ D） 12 at most. 9 How does Miss Wu deal with the audited courses? （ A） She has to attend the course only. （ B） She has to do the papers. （ C） She has to take part in the exam. （ D） She
9、has to finish her homework. 10 What does the student imply when she says this? （ A） She has to take a part-time job. （ B） She would like to audit American Prose and Fiction rather than select the course. （ C） She must take exams on audited courses （ D） She would rather take fewer classes than fail a
10、ny. 10 Narrator Listen to part of a lecture in an epidemiology class. Now get ready to answer the questions. You may use your notes to help you answer. 11 What is the lecture mainly about? （ A） The definition of swine flu in Mexico. （ B） The basic information about swine flu. （ C） The infection of s
11、wine flu to humans. （ D） The prevention of swine flu worldwid 12 In the lecture, the professor describes three types of influenzavirus. Indicate whether each word or phrase describes the three types of influenzvirus? Click in the correct box for each type of influenzavirus. 13 According to the profe
12、ssor, who are the most likely to catch swine influenza? （ A） People who expose themselves to swine. （ B） People who are at risk of catching swine. （ C） People who work in order to get swine. （ D） People who carry swine to humans. 14 What are the symptoms of swine flu? （ A） Chills, fever, and sore th
13、roat （ B） Muscle pains and headache. （ C） Shedding tears, sneezing and toothache. （ D） Coughing, weakness and discomfort. 15 What does the professor imply when he says this? （ A） The 2009 flu outbreak is caused by two separate strains of swine influenza. （ B） The 2009 flu outbreak is caused by influ
14、enza A virus and human influenza. （ C） The 2009 flu outbreak is due to a combination of several types of influenza. （ D） The 2009 flu outbreak is due to human influenza and avian influenz 16 What can be done to prevent swine flu? （ A） Stop touching mouth, nose or eyes. （ B） Avoid using tabletops and
15、 telephones. （ C） Prevent people from taking buses. （ D） Wash hands and keep social distanc 16 Narrator Listen to part of a lecture about libraries. Now get ready to answer the questions. You may use your notes to help you answer. 17 What is the main purpose of the talk? （ A） To introduce categories
16、 of books in the U. S. libraries. （ B） To demonstrate the importance of the U. S. libraries. （ C） To explain the roles of different U. S. libraries. （ D） To define the circulation system of the U. S. libraries. 18 Who drew up the rules for the first private library in the U. S. （ A） The legislature
17、（ B） The librarian. （ C） John Harvard. （ D） The faculty members. 19 Why was the earliest public library also called a subscription library? （ A） Because books could be lent to everyone. （ B） Because books could be lent by book stores. （ C） Because books were lent to students and the faculty, （ D） Be
18、cause books were lent on a membership basis. 20 What are the three purposes of free public libraries? （ A） To provide readers with comfortable reading rooms. （ B） To provide adults with opportunities of further education. （ C） To serve the communitys cultural and recreational needs. （ D） To supply t
19、echnical literature on specialized subjects 21 What is the largest public library in the United States? （ A） The library of Harvard College. （ B） The Library of Congress. （ C） The library in Philadelphia. （ D） The library in New Englan 22 What does the speaker imply when she says this? （ A） The majo
20、r difference between private and public libraries is their readership. （ B） The function of private libraries is different from that of public libraries. （ C） Private libraries can offer better services than public libraries. （ D） Only some special organizations can borrow books from private librari
21、es. 22 Narrator Listen to part of a lecture in a mass media class. Now get ready to answer the questions. You may use your notes to help you answer. 23 During the last two hundred years, what has become one of the dominating factors of contemporary society? （ A） Face-to-face contact. （ B） Mass commu
22、nication. （ C） Speech. （ D） Eye-to-eye contact. 24 What are the two factors that caused the enormous growth of the communication industry? （ A） Inventiveness. （ B） Transmission. （ C） Speed. （ D） Technology. 25 What is implied in the lecture? （ A） Local news used to be the only source of information.
23、 （ B） Local news still takes a significant place. （ C） National news is becoming more popular. （ D） International news is the fastest transmitted news. 26 Which of the following statements is NOT true? （ A） Possessing information used to be a privilege. （ B） Public libraries have replaced private li
24、braries. （ C） Communication means more than transmission. （ D） Information influences ways of life and thinkin 27 What does the professor imply when he says this? （ A） We must communicate with other people in social settings. （ B） Person-to-person speech is the basis of communication. （ C） We can ex
25、change views through conversations. （ D） Face-to-face contact is the simplest means of speec 28 What does the professor imply when he says this? （ A） Mass media play an important role in our society. （ B） Mass media also have negative aspects to our society. （ C） Communication is misled by mass medi
26、a. （ D） Mass media are valuable to individuals. 28 Narrator Listen to part of a lecture in a sociology class. Now get ready to answer the questions. You may use your notes to help you answer. 29 What is the exact meaning of ageism? （ A） A negative period of impotency and incompetency. （ B） A negativ
27、e and/or stereotypical perception of older adults. （ C） A definition of stereotypical and often negative attitudes. （ D） A denotation against the negative bias of older adults. 30 What does the phrase “over the hill“ denote? （ A） Old age is a period of competency. （ B） Old age is a period of potency
28、. （ C） Old age is a period of productivity. （ D） Old age is a period of lacking the ability. 31 Ageism is different from other “ism“, because of all the following reasons EXCEPT that _. （ A） it is based upon the constant age classification （ B） the concept of agedness is changing gradually （ C） one
29、is experiencing the aging process oneself （ D） age classification remains the same for many years 32 According to the passage, why is age classification changeable? （ A） An individuals age classification changes as one progresses through the life cycle. （ B） The individual may be an ageist with resp
30、ect to others. （ C） An individuals age classification changes with the development of society. （ D） The individual may be an ageist with respect to himsel 33 No one is exempt from achieving the status of old at some point. What will affect the individual? （ A） A perception of any action, or institut
31、ional structure. （ B） The individual may be an ageist with respect to others. （ C） The individual may be an ageist with respect to self. （ D） The concept of agedness is changing gradually. 34 Why does the professor say this? （ A） The professor is trying to make something clear about their difference
32、s, （ B） The professor is demonstrating some of the differences between research. （ C） The professor is discussing the result of different methodologies employed. （ D） The professor is trying to conduct conclusive research by himsel 一、 Sections Three： Reading Comprehension 34 This section measures yo
33、ur ability to understand academic passages in English. The Reading section of TOEFL iBT is divided into 2 or 3 separately timed, parts. Most questions in the Reading section are worth 1 point, but the last question for each passage is worth more than 1 point. The directions for the last question inc
34、lude the point value of the question. Some passages will include a word or phrase that is underlined in blue. Click on the word or phrase to see its definition or an explanation. Within each part, you can go on to the next question by clicking the Next icon. You may skip questions and go back to the
35、m later. If you want to go back to previous questions, click the Back icon. You may click the Review icon at any time and the review screen will show you which questions you have answered and which you have not. From the review screen, you can go directly to any question you have already seen in the
36、 Reading section. You will now begin the Reading section. There is 1 passage for this part of the section, and you will have 20 minutes to read the passage and answer the questions. Click Continue to go on. Great Barrier Reef The Great Barrier Reef is made of coral, a colorful rock-like substance ac
37、tually composed of many small marine animals, each one less than half a centimeter in size. Coral grows in colonies that can reach over a meter and a half in height, and several of these colonies grow in close proximity to each other, eventually joining up to form an underwater chain or reef. The Gr
38、eat Barrier Reef refers to a series of almost three thousand coral reefs that stretch across the ocean floor in a twelve hundred mile chain, which makes it so long that it can actually be seen from space. Apart from its size, the Great Barrier Reef is also renowned for its age. The living part of th
39、e reef itself is around 8,000 years old, but sits atop the remains of dead coral that is much older, in some places almost half a million years old. A system of living organisms so anc ient and so large would be fascinating to scientists by the simple fact of its existence alone, but the Great Barri
40、er Reef is also of great scientific interest because of the diversity of marine life that lives in its vicinity. As stated above, the Great Barrier Reef is made of coral, but just as there are many different varieties of dogs, cats, and finches, there are many varieties of coral, over 500 of which a
41、re found in the Great Barrier Reef. The rocky formations of the reefs also provide shelter for a variety of smaller marine fish, and these in turn provide food for larger, more predatory fish. As a result, some scientists believe that the Reef is home to up to twenty-five percent of all marine fish
42、species. However, this is only a rough estimate since so few of the Reefs fish species have been documented. In addition, the Reef hosts a variety of sponges, anemones, sea turtles, sea snakes, sea birds, and whales. Marine biologists, therefore, value the Reef for what it can teach them about ocean
43、 ecology, while other scientists are eagerly investigating the practical applications of chemical compounds produced by the creatures of the Reef. Indeed, chemicals initially discovered in Reef organisms are already the basis for many potent new medicines, including some that help battle AIDS and va
44、rious cancers. Coral reefs in general, and the Great Barrier Reef in particular, have been considered so environmentally important that the governments that control the waters where they exist have designated vast tracts of ocean as environmentally protected areas. Nevertheless, the reefs form one g
45、iant, interconnected ecosystem, and human activities in unprotected areas of the reefs can affect the entire system. One such human activity is fishing. (A) The rich biodiversity of the reefs attracts many predatory fish that in turn draw large numbers of fishing vessels. (B) Unfortunately, many mod
46、ern fishing techniques employ nets that catch not only the target species, but all fish too big to slip through the holes in the net. (C) Besides fishing, the reefs face pressure from shipping and oil spills. (D) Shipping can become a problem when freighters make mistakes in navigation and run into
47、the reef, shattering segments of it that have taken decades or even centuries to grow. Oil spills- always damaging to the environment-have an especially devastating effect when they occur near the reefs because so many endangered species are affected. The future of the Great Barrier Reef is uncertai
48、n. In addition to the environmental hazards outlined above, the Reef is under threat of global warming. Although coral consists of tiny, carnivorous animals, those animals do not get most of their nutrients from the organisms they catch. Instead, they enjoy a symbiotic relationship with a form of al
49、gae called zooxanthellae. These algae live off the nitrogen emitted by the coral. Like many other types of algae, zooxanthellae undergo photosynthesis, using energy from sunlight to create sugars that they can use for fuel. Some of those sugars are also absorbed by the coral that shelter the algae, providing the coral with the fuel it needs to live. However, these particular algae can only perform photosynthesis if the water around them is within a very narrow temperature range. If the temperature of the water in the ocean increases by too much, the algae cease to be
