Section B
Directions: In this section,you will hear 3 short passages.At the end of each passage,you will hear some 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 2 with a single line through the centre.
Passage One
Questions 26 to 28 are based on the passage you have just heard.
26.A.They made them by knives.
B.They found adequate stones.
C.They used bones of animals.
D.They made tools by hitting stone against stone.
27.A.Because it was one of thr first tools.
B.Because it developed human capacities.
C.Because it led to thr invention of machines.
D.Because it was crucial to the development of mankind.
28.A.It becomes bigger.
B.It becomes more expensive.
C.It becomes cheaper.
D.It becomes much safer.
Passage Two
Questions 29 to 31 are based on the passage you have just heard.
29.A.They don't have a positive attitude.
B.They have other arrangements.
C.They are too lazy.
D.They get up too late.
30.A.Having fun while in school.
B.Working toward long-range goal.
C.Being discountaged.
D.Dropping a class that is dull boring.
31.A.Some students just give up on their classes.
B.A positive attitude is the key to success in college.
C.The surver may be unscientific.
D.It is important to educate college students.
Passage Three
Questions 32 to 35 are based on the passage you have just heard.
32.A.Pollution of codstal areas.
B.Rise in sea levels.
C.Exhaustion of sea resources.
D.Earthquakes and volcanoes.
33.A.Greenhouse gases.
B.Over-exploitation of the beach.
C.Change of agricultural zones.
D.Change of climates.
34.A.farming implements.
B.Scientific farming methods.
C.Heat-resistant and drought-resistant crops.
D.Scientific farming system.
35.A.By the end of this century.
B.By the first half of this century.
C.By the second half of this century.
D.By the middle of this century.