杰哥8月精听营第23期自制录屏

1、8 月月 精精 听听 营营(三三)1. What is the discussion mainly about?A. The professors recent research on play and brain developmentB. Different explanations of the reasons for playC. Examples of two distinct types of play fightingD. Differences in the play behaviors of various animal specials2. One of the stude

2、nts brings up the example of play fighting among wolf pups. What does this example lead him to believe?A. That wolves are especially violent animalsB. That the play-as-preparation hypothesis is probably correctC. That wolves seldom engage in self-handicappingD. That the results of a recent study are

3、 probably not reliable3. Which statement best expresses the professors opinion of the play-as-preparation hypothesis?A. It is well supported by available evidence.B. It may apply only to certain species of animals.C. It does not explain some important aspects of play.D. It is particularly useful exp

4、laining human behavior.4. What does the professor imply about self-handicapping? Click on 2 answersA. It commonly occurs in play but not in other activities.B. It applies only to animal species that do not hunt for food.C. It has been observed only in laboratory settings.D. It contradicts the play-a

5、s-preparation hypothesis.5. The professor discusses a study on the relationship between brain growth and play. What does that study conclude?A. Patterns of brain growth are similar in animals that play and animals that do not play.B. Excessive brain growth can sometimes limit an animals behavioral v

6、ocabulary.C. Animals that do not play have less-developed brains than animals that play.D. Animals without well-developed brains are seldom observed playing.6. What does the student mean when she says this: A. She is not familiar with the play behavior of wolf pups.B. She doubts that wolf pups fight

7、 as much as the other students implies.C. She is not sure that she correctly understood the reading assignment.D. She disagrees with the other students opinion about play behavior.1. What is the main purpose of the lecture?A. To provide an example of a practical use of nanotechnologyB. To show the o

8、rigins of the field of nanotechnologyC. To give a brief outline of the main concepts of nanotechnologyD. To explain the growing interest in nanotechnology research2. How does the professor organize the information he presents to the class?A. He describes the inspiration behind the nanocoating, then

9、how the coating works.B. He describes how the nanocoating is currently marketed, then the inspiration behind it. C. He explains how fogging occurs, then the basic concepts of nanotechnology.D. He explains how fogging occurs, then how the nanocoating prevents it.3. According to the professor, how doe

10、s the new nanocoating work?A. By forcing light to bounce off a glass-coated polymerB. By forcing water droplets to roll off an ultrathin surfaceC. By causing water droplets to merge into a single sheet of waterD. By causing light to scatter randomly in many directions4. According to the information

11、in the lecture, why does the new nanocoating not last as long on plastic as it does on glass? A. Plastic cannot withstand extremely high temperatures.B. The internal structure of plastic repels a positively charged polymer.C. The coating solution scatters when it comes into contact with plastic.D. P

12、lastic surfaces scratch more easily than glass surfaces do.5. What inspired the team of scientists in developing the new coating? A. A problem the team frequently encountered in everyday life.B. The ineffectiveness of spray solutions in flattening water droplets.C. The leaves of a plant that the tea

13、m had been investigating.D. Interactions observed between silica nanoparticles and polymers.6. What is the professors opinion about the approach inventors took to the development of the new nanocoating?A. He thinks other inventors should use a similar approach.B. He is impressed by the flexibility o

14、f their approach.C. He is surprised the research process took so long.D. He thinks they should have spent more time testing a superhydrophobic coating.18. Why does the man go to see the professor?A.To discuss his impressions of a recent piano concertB.To ask how to revise a paper he is writingC.To g

15、et approval to write a paper about his grandmothers lifeD.To find out why he received a poor grade on a paper he wrote19. What did the man not understand about his professors written comments?A.What she considers a weakness in his writing styleB.What she means by the terns broader contextC.Which per

16、iod of music history she wants him to write aboutWhy- she prefers that he write about an unfamiliar subject20. What does the man say about his grandmothers music career?A.She studied both classical music and jazz in school.B.She planned a career as a jazz musician.C.She performed jazz music for most

17、 of her career.D.She now performs both classical music and jazz.21. Why does the professor ask the man to come early to the next class?A.So that he can hand in a revised draft of his paperB.So that he can tell her the date and time of his choir concertC.So that they can continue their discussion of the mans paperD.So that he can interview the professor about womens contributions to music22. What does the professor mean when she says this:A.She will give the man extra credit if he rewrites his pape