1、Toefl iBT Practice Test TPO 12 Listening Section 1No. of Questions: 17OKNow put on your headsetClick on CONTINUE to go onCONTINUEYou may have to wait a few seconds for the audio to load and play.REPLAYCONTINUECONTINUEREPLAYNow get ready to answer the questionQuestion 1 of 17Why does the professor as

2、k the man to come to her office?o check on the mans progress on a paper he is writingTo show the man techniques for organizing his timeo encourage the man to revise a paper he wroteo clarity her comments on a paper the man wroteQuestion 2 of 17Why does the man hesitate before agreeing to the profess

3、orsrequest?e is not sure his effort would be successful.e feels overwhelmed by all his schoolwork.e is unclear about what the professor wants him to do.e does not like to work on more than one assignment at a timeQuestion 3 of 17What is the professors main criticism of the mans paper?t included unne

4、cessary information.t did not include enough examples to illustrate the main point.he main point was expressed too abstractly.he paper ignored a key historical fact.Question 4 of 17Why does the professor suggest that the student change theintroduction of his paper?o make it less repetitiveo more cle

5、arly state the mans point of viewo correct spelling and grammar mistakeso reflect changes made elsewhere in the paperQuestion 5 of 17CONTINUEListen again to part of the conversation.Then answer the question.Question 5 of 17What does the professor mean when she says thishe understands the students pr

6、oblem.he wants the student to explain his comment.he did not hear what the student said.he does not accept the students excuse.You may have to wait a few seconds for the audio to load and play.REPLAYCONTINUECONTINUEREPLAYNow get ready to answer the questionQuestion 6 of 17What does the professor mai

7、nly discuss?ow genes control human developmenthy various types of human cells divide at different ratesow human chromosomes differ from one anotherhy most human cells cannot keep dividing successfullyQuestion 7 of 17The professor discusses research about the percentage of a chromosomes DNA that cont

8、ains genetic information. How did she feel about this research?he doubted its accuracy.he was surprised by its conclusion.he was concerned about its implications.he thought it was unnecessary.Question 8 of 17What does the professor say about the DNA in a telomere?t causes a cell to begin dividing.t

9、separates one gene from another.t is genetically meaningless.t has no function.Question 9 of 17Why does the professor mention shoelaces?o point out that chromosomes are arranged in pairso describe the coiled shape of a chromosomeo illustrate how chromosomes are protected from damageo explain how chr

10、omosomes are joined before dividingQuestion 10 of 17What does the professor imply about the length of the telomeres ona cells chromosomes?onger telomeres allow the cell to divide more times.onger telomeres contain more genetic information.horter telomeres are wound into tighter coils.horter telomere

11、s are less likely to break.Question 11 of 17According to the professor, how is the chemical telomerase relatedto the telomere?t resembles the telomere in structure.t helps repair broken telomeres.t is produced at the end of the telomere.t prevents telomeres from becoming too long.You may have to wai

12、t a few seconds for the audio to load and play.REPLAYCONTINUECONTINUEREPLAYNow get ready to answer the questionQuestion 12 of 17What is the lecture mainly about?wo competing theories of business managementools that business managers can use to improve the efficiency of their mployeesmethod for busin

13、esses to learn about the needs of their customersway that business managers can better relate to their employeesQuestion 13 of 17According to the discussion, what is a potential drawback of MBWA?BWA provides information about the opinions of a small number of people.BWA can provide conflicting infor

14、mation.ustomers often are reluctant to share their opinions.ustomers may be annoyed about being observed while they shop.Question 14 of 17What does the professor say about the relationship betweenMBWA and market research?BWA is a refined version of a market research technique.Market research informa

15、tion is more valuable than information from MBWA.Information provided by MBWA complements information collected from marketBusiness managers should replace market research with MBWA.Question 15 of 17Why does the professor mention Daltons soup and Elkin jeans?o illustrate that the success of MBWA oft

16、en depends on the product involvedo give examples of two companies that were resistant to trying MBWAo contrast a successful use of MBWA with an unsuccessful useTo give examples of how the technique of MBWA is used in practiceQuestion 16 of 17Why does the professor discuss the mayor of Baltimore?To

17、explain the origins of the method of MBWAo demonstrate that MBWA can be useful outside the business worldTo provide an example of how MBWA can sometimes failo give an example where market research and MBWA provide similar types of informationQuestion 17 of 17What does the professor imply when she sa

18、ys thist is surprising that Daltons tried to use MBWA.t is surprising that MBWA was successful for Daltons.he does not have a high opinion of the quality of Daltons soups.altons positive experience with MBWA led many other companies to try MBWA.Congratulations!You have completed this practice test.Obtain answer keysSave / exit the testReview your ans