Section C
Directions: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1with a single line through the centre.
Questions 16 to 18 are based on the passage you have just heard.
16. A) They help farmers keep diseases incheck.
B) Many species remain unknown to scientists.
C) Only a few species cause trouble to humans.
D) They live in incredibly well-organized colonies.
17. A) They are larger than many other species.
B) They can cause damage to people’s homes.
C) They can survive a long time without water.
D) They like to form coloniesin electrical units.
18. A) Deny them access to any food. B) Keep doors and windows shut.
C) Destroy their colonies close by. D) Refrain from eating sugary food.
Questions 19 to 21 are based on the passage you have just heard.
19. A) The function of the human immunesystem.
B) The cause of various auto-immune diseases.
C) The viruses that may infect the human immune system.
D) The change in people’s immune system as they get older.
20. A) Report their illnesses. B) Offer blood samples.
C) Act as research assistants. D) Help to interview patients.
21. A) Strengthening people’s immunity to infection.
B) Better understanding patients’ immune system.
C) Helping improve old people’s health conditions.
D) Further reducing old patients’ medical expenses.
Questions 22 to 25 are based on the passage you have just heard.
22. A) His students had trouble getting on with each other.
B) A lot of kids stayed at school to do their homework.
C) His students were struggling to follow his lessons.
D) A group of kids were playing chess after school.
23. A) Visit a chess team in Nashville.
B) Join the school’s chess team.
C) Participate in a national chesscompetition.
D) Receive training for a chesscompetition.
24. A) Most of them come from low-income families.
B) Many have become national chess champions.
C) A couple of them have got involved incrimes.
D) Many became chess coaches after graduation.
25. A) Actions speak louder than words. B) Think twice before taking action.
C) Translate their words into action. D) Take action before it gets too late.