1. What is the lecture mainly about?
(A) Ways to generate heat for nuclear fusion
(B) Differences between nuclear fission and nuclear fusion
(C) A controversial theory regarding how to generate nuclear fusion
(D) The possibility of establishing sustained nuclear fusion
2. According to the students, what are three advantages of nuclear fusion over nuclear fission
Click on 3 answers.
(A) Nuclear fusion can use a fuel that is more easily obtained.
(B) Nuclear fusion can be achieved at lower temperatures.
(C) Nuclear fusion produces more energy.
(D) Nuclear fusion does not produce hazardous by-products.
(E) Nuclear fusion does not require as many natural resources.
3. Why does the professor mention isotopes of hydrogen?
(A) To correct a student's comment about how fusion takes place in stars
(B) To help answer a student's question about temperature requirements for fusion reactors
(C) To explain what happens to hydrogen atoms during fusion reactions
(D) To justify the need for superconducting magnets in nuclear fusion reactors
4. According to the professor, how will the ITER reactor differ from earlier experimental fusion reactors?
Click on 2 answers.
(A) It will be transportable to different locations.
(B) It will sustain nuclear reactions through heat that it generates on its own.
(C) It will heat the fuel mixture to a higher temperature.
(D) It will confine the plasma in a more energy-efficient way.
5. What does the professor say about the international effort to develop ITER?
(A) The participation of many countries may cause ITER to be delayed even more.
(B) The research orientation of ITER has encouraged international collaboration.
(C) ITER will make use of equipment made in many different countries.
(D) The lack of international cooperation on earlier fusion projects has hurt ITER.
6. What does the professor imply when he says this:
(A) He prefers to work on projects with more immediate results.
(B) He believes that research in the physical sciences requires strict time lines.
(C) He thinks it will take less time to develop ITER than most researchers expect.
(D) He is more skeptical about the future of nuclear fusion than most researchers are.
1. What is the lecture mainly about?
A. The influence of Incan culture on later Peruvian civilizations
B. The significance of archaeological findings in a region of Peru
C. The controversy surrounding a new method of archaeological research
D. The renovation of rectangular pyramids found in Peru
2. Why does the professor discuss the Aspero site in Peru?
A. To provide evidence of an ancient Peruvian culture's knowledge of irrigation techniques
B. To point out that the Aspero pyramids are different from those found at other Norte Chico sites
C. To explain a belief about Peruvian history that was later challenged
D. To clarify which of the twenty residential centers in the Norte Chico region was the largest
3. What is the professor's opinion about the current archaeological classification of the Norte Chico culture?
A. The culture should be considered complex in spite of the unusual way it developed.
B. The culture seems to have followed the pattern that is typical of other major ancient civilizations.
C. The failure of the culture to produce ceramic pottery indicates a lack of advancement.
D. More evidence is needed before the culture can be classified into one of the existing categories.
4. According to the professor, what crop was NOT cultivated by the ancient inhabitants of the Norte Chico region
5. What does the professor imply about the significance of the khipu that were produced by the Norte Chico culture?
A. They represent the culture's first attempts at creating fabric.
B. They confirm the importance of cotton in the regional economy.
C. They suggest that early inhabitants of the region's coastal areas used fishing nets.
D. They may constitute one of the earliest known forms of written communication.
6. What does the professor say about how the city of Caral came to an end?
A. People moved to the coast to have greater access to the ocean's resources.
B. Outside enemy forces invaded the city.
C. The city's inhabitants initiated a rebellion.
D. The city's inhabitants abandoned the city in an organized manner.
student & employee听力题目：
1. What does the woman hope to find out by going to the art museum?
A. What types of volunteer positions are available for students
B. How much she would be paid for working as a tour guide
C. Whether alternative arrangements can be made for becoming a tour guide
D. Why a particular museum employee has not returned her phone calls
2. Why does the woman mention a test that she has to take
A. To explain why she is unable to attend a training session
B. To let the man know that she will be late for the tour on Monday
C. To list one requirement she must fulfill to receive extra credit
D. To show that she is aware of what she must do to become a tour guide
3. Why does the woman want to start working at the art museum before the current semester ends?
A. To fulfill a graduation requirement
B. To improve her grade in a class
C. To earn money for the following semester
D. To conduct research for a paper
4. What does the man imply when he mentions Professor Tyler?
A. That he is familiar with the situation the woman is in
B. That the training session for new tour guides covers some of the same material covered in art history classes
C. That Professor Tyler recognizes which students would make good tour guides
D. That Professor Tyler may have given the woman incorrect information about the job
5. According to the man, why might the woman want to consider a data processing position
Click on 2 answers.
A. It is probably more exciting than working as a tour guide.
B. It would allow the woman to begin working immediately.
C. It would give the woman experience in her major.
D. It could eventually lead to a paying job.
- 2017年10月14日托福听力考试小... 2017-09-11
- 2017年9月16日托福写作考试预测... 2017-09-08
- 2017年9月17日托福独立写作题目... 2017-09-08
- 2017年9月17日托福阅读考试小范... 2017-09-08
- 9月17日托福口语机经预测... 2017-09-08
- 2017年9月17日托福听力小范围预... 2017-09-08
- 2017年9月16日托福听力考试预测... 2017-09-08
- 2017年9月16日托福口语考试预测... 2017-09-08
- 2017年9月16日托福阅读考试预测... 2017-09-07
- 2017年9月9日托福口语考试独立任... 2017-09-05