15.A)By smelling them. B)By touching them. C)By recognizing their voices. D)By remembering the description of them 16.A)In1891 In1821 C)In 1819 D)In1812 Passage 3 Questions 17 to 20 are based on the passage you have just heard 17.A)Very new. B)Very old C)Like baseball and apple pie D )An American idea 18. A)To make ice cream for him BTo bring ice cream from China C)Guard the secret ice-cream D)To bring ice-cream to cool his drink. 19. A)A traveler to China. B)A royal cook. C)The inventor of ice-cream. D)A Roman emperor. 20.A)Two million. B )Over two million. C)Two billion. D)Over two b illi Part II Reading Comprehension (35 minutes) Directions: There are 4 passages in this part. Each passage is followed by some q uestions or unfinished statements For each of them there are four choices marked A), B), C)and D). You should decide on the best choice and mark the corresponding let ter on the Answer sheet with a single line through the centre Passage 1 Questions 21 to 25 are based on the following passage. It is hard to predict how science is going to turn out and if it is really good science it is impossible to predict. If the things to be found are actually new, t hey are by definition unknown in advance. You cannot make choices in this matter You either have science or you don't, and if you have it you are obliged to acce pt the surprising and disturbing pieces of information, along with the neat and p romptly useful bits The only solid piece of scientific truth about which i feel totally confident is that we are profoundly ignorant about nature. Indeed i regard this as the major discovery of the past hundred years of biology. It is, in its way, an illuminating piece of news. It would have amazed the brightest minds of the 18th centur15.A)By smelling them. B)By touching them. C)By recognizing their voices. D)By remembering the description of them. 16.A)In 1891. B)In 1821. C)In 1819. D)In 1812. Passage 3 Questions 17 to 20 are based on the passage you have just heard. 17.A)Very new.B)Very old. C)Like baseball and apple pie.D)An American idea. 18.A)To make ice cream for him.B)To bring ice cream from China. C)Guard the secret ice-cream.D)To bring ice-cream to cool his drink. 19.A)A traveler to China.B)A royal cook. C)The inventor of ice-cream.D)A Roman emperor. 20.A)Two million.B)Over two million.C)Two billion.D)Over two b illion. Part ⅡReading Comprehension (35 minutes) Directions:There are 4 passages in this part.Each passage is followed by some q uestions or unfinished statements.For each of them there are four choices marked A),B),C) and D).You should decide on the best choice and mark the corresponding let ter on the Answer Sheet with a single line through the centre. Passage 1 Questions 21 to 25 are based on the following passage. It is hard to predict how science is going to turn out,and if it is really good science it is impossible to predict.If the things to be found are actually new,t hey are by definition unknown in advance. You cannot make choices in this matter .You either have science or you don’t,and if you have it you are obliged to acce pt the surprising and disturbing pieces of information,along with the neat and p romptly useful bits. The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature.Indeed, I regard this as the major discovery of the past hundred years of biology.It is,in its way,an illuminating piece of news.It would have amazed the brightest minds of the 18th century