[外语类试卷]托福模拟试卷41及答案与解析.doc
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1、托福模拟试卷 41及答案与解析 0 Narrator Listen to part of a lecture in the chemistry class. Now get ready to answer the questions. You may use your notes to help you answer. 1 What is the talk mainly about? ( A) The function of an atom. ( B) The development of atom theory. ( C) The structure of an atom. ( D) Met
2、hods to find an atom. 2 In the lecture, the professor describes the modern atom theory. Clink on the correct box for each statement. 3 Why does the professor mention paper clips? ( A) To make an analogy to atoms. ( B) To do a chemical experiment. ( C) To show the usage of paper clips. ( D) To provid
3、e some useful stationery. 4 According to the speech, who found the way to weigh atoms? ( A) Democritus. ( B) Carl H. Snyder. ( C) Amadeo Avogadro. ( D) John Dalton. 5 What does the professor mean when he says this? ( A) He wants the students to divide everything. ( B) He does not like many paper cli
4、ps. ( C) He wants to generalize the features of an atom. ( D) He thinks the students cant understand him. 6 What does the professor mean by saying this ? ( A) The combination ratio of atoms was resolved. ( B) The weighing method of atoms was resolved. ( C) The construction of water was resolved. ( D
5、) The structure of an atom was resolved. 6 Narrator Listen to the conversation between a student and the club secretary. Now get ready to answer the questions. You may use your notes to help you answer. 7 Why does the student call the language club? ( A) To quit the language club. ( B) To apply for
6、a job there. ( C) To ask for information. ( D) To chat with somebody. 8 What is the students attitude toward the language club? ( A) He wants to join the club. ( B) He thinks the charge is high. ( C) He thinks the activities are dull. ( D) He likes the debate group best. 9 According to the secretary
7、, what two requirements should the applicant meet to join the language club?Clink on 2 answers. ( A) He must be a student of the university. ( B) He must pay the fee on time. ( C) He must be an overseas student. ( D) He must be keen on language. 10 What does that mean? ( A) He isnt sure of the membe
8、rship fee. ( B) He cant decide which group to join. ( C) He cant remember the phone number. ( D) He doesnt like to visit the advisor. 11 How can the student find the advisor? ( A) By calling 8843 at 3 a. m. on Monday. ( B) By visiting room No. 121 on Tuesday. ( C) By calling 8843 at 8 a. m. on Wedne
9、sday. ( D) By calling 8834 at 8 a. m. on Wednesday. 11 Narrator Listen to a talk on home automation in a mechanical engineering class. Now get ready to answer the questions. You may use your notes to help you answer. 12 What is the talk mainly about? ( A) The differences between traditional and auto
10、mated houses. ( B) The advantages of automated houses. ( C) The tendency of home automation. ( D) The history of automation technology. 13 What are the benefit of home automation? ( A) Comfortable and cheap. ( B) Environmentally friendly. ( C) Stable and comfortable. ( D) Secure and convenient. 14 A
11、ccording to the professor, what is the main reason for the popularity of home automation system? ( A) People are fond of new and modern things. ( B) People dream of creating a space-age home. ( C) People dream of an easy life. ( D) People have not enough time for household chores. 15 How does home a
12、utomation benefit disabled people?Clink on 2 answers. ( A) It helps them to perform impossible tasks at home. ( B) It allows them to use voice commands. ( C) It keeps them safe from fire. ( D) It makes their life more enjoyable. 16 What does the home automation system consist of? ( A) Computers, wir
13、ing and sensors. ( B) Complicated computer networks. ( C) Video-cameras, TV sets and alarms. ( D) Microprocessors, transmitters and electric cables. 17 Why does the professor say this? ( A) Because it controls an alarm automatically. ( B) Because it turns on lights. ( C) Because it keeps the home sa
14、fe. ( D) Because it frightens strangers. 17 Narrator Listen to part of a lecture about GPS. Now get ready to answer the questions. You may use your notes to help you answer. 18 What aspect of GPS does the talk mainly discuss? ( A) What it is made up of and its shortcomings ( B) How it works and its
15、attributes. ( C) The history of its development. ( D) How it is different from other technologies 19 What can be inferred about the present GPS functions? ( A) It is only used for military purposes. ( B) It is now important to civilian life. ( C) It handles all kinds of situations. ( D) It offers ac
16、curate calculations. 20 According to the speaker, how accurate is a Garmin GPS receiver? ( A) About 17 feet across. ( B) An average of three to five meters. ( C) Within 15 meters on average. ( D) More than 13 meters. 21 What does the professor imply when she says this? ( A) At least 4 satellites can
17、 make 3D position. ( B) To make 3D position three satellites are enough. ( C) At least 4 satellites can make 2D position. ( D) The GPS receiver is very difficult to lock. 22 What does the professor mean when she says this? ( A) GPS is very useful in military and civilian fields. ( B) GPS is very goo
18、d at data calculation. ( C) GPS is a modern way to transit signals. ( D) It is very difficult for GPS to determine position. 23 What can be inferred about the use of GPS nowadays? ( A) GPS can be used nearly 24 hours a day. ( B) GPS can be used in certain places in the world. ( C) GPS provides great
19、 convenience for us. ( D) GPS can be used without subscription or setup fees. 23 Narrator Listen to part of a talk in an environmental science class. Now get ready to answer the questions. You may use your notes to help you answer. 24 What is the talk mainly about? ( A) The definition of air polluta
20、nt. ( B) The causes of air pollution. ( C) The dangers of air pollutants. ( D) Ways to fight air pollution. 25 According to the speaker, what is the feature of air pollutants? ( A) Its contents often remain stable. ( B) Its definition will change over time. ( C) Air pollutants are natural. ( D) Air
21、pollutants are man-made. 26 According to the speaker, what might be an air pollutant in the future? ( A) Sulfur oxides. ( B) Carbon monoxide. ( C) Nitrogen oxides. ( D) Water vapor. 27 What may be influenced by air pollutants? Clink on 2 answers. ( A) Humans and animals. ( B) The global climate. ( C
22、) Vegetations and plants. ( D) Mineral materials. 28 What does the professor mean when he says this? ( A) Little is known about defining a substance as an air pollutant. ( B) The substance isnt an air pollutant when there is a very little in the air. ( C) The substance cant be judged to be an air po
23、llutant only from its actual concentration level. ( D) The actual concentration level means little to people. 29 What can be inferred from this? ( A) Sometimes natural air pollutants can purify air. ( B) Natural air pollutants are harmful to people. ( C) There are some chemical reactions in the air.
24、 ( D) Air pollutants move from air to water or soil. 29 Narrator Listen to part of a conversation between a student and a professor. Now get ready to answer the questions. You may use your notes to help you answer. 30 Why did the student miss the lesson? ( A) She was badly ill. ( B) She forgot the l
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