Section C Directions: in this section, you will hear three recordings of lectures or t

alks followed by three or four questions. the recordings will be played only once. after you hear a question,you must choose the best answer from the four choices marked a, b, c andA.Then mark the corresponding letter on answer sheet 1 with a single line through centre. Questions 16 to 18 are based on the recording you have just heard.

B.they get bored after working for a period of time.

C.they spend an average of one year finding a job.

D.they become stuck in the same job for decades.

E.they choose a job without thinking it through.

17、A.see if there will be chances for promotion.

B.find out what job choices are available.

C.watch a film about ways of job hunting.

D.decide which job is most attractive to you.

18、A.the qualifications you have.

B.the pay you are going to get.

C.the culture of your target company.

D.the work environment you will be in.

19、Questions 19 to 22 are based on the conversation you have just heardA.it is as important as christmas for african-americans.

B.it is a cultural festival founded for african-americans.

C.it is an ancient festival celebrated by african-americans.

D.it is a religious festival celebrated by african-americans

20、A.to urge african-americans to do more for society.

B.to call on african-americans to worship their gods

C.to help african-americans to realize their goals.

D.to remind african-americans of their sufferings.

21、A.faith in self-determination

B.the first fruits of the harvest

C.unity and cooperative economics

D.creative work and achievement.

22、A.they recite a principle

B.they take a solemn oath

C.they drink wine from the unity cup

D.they call out their ancestors' names.

24、A.it involved 13, 000 researchers from asia, europe and america.

B.it was conducted in seven mid-eastern countries in the 1950s

C.it is regarded as one of the greatest researches of its kind.

D.it has drawn the attention of medical doctors the world over.

25、A.they care much about their health.

B.they eat foods with little fat.

C.they use little oil in cooking

D.they have lower mortality rates

23、 Questions 23 to 25 are based on the recording you have just heardA.it is one of the world's most healthy diets.

B.it contains large amounts of dairy products.

C.it began to impact the world in recent years.

D.it consists mainly of various kinds of seafood.

请帮忙给出每个问题的正确答案和分析，谢谢！