单选题Questions 22 to 25 are based on the passage you have just heard.
单选题
A. The invention of primitive weapons and language. B. The invention of language and the discovery of fire. C. The invention of primitive weapons and the discovery of fire. D. The invention of primitive weapons and the development of human brain.
【正确答案】
C
【答案解析】[解析] 22-25 The first two stages in the development of civilized man were probably the invention of primitive weapons and the discovery of fire，although nobody knows exactly when he acquired the use of the latter. The origin of language is also obscure. No doubt it began very gradually.Animals have a few cries that serve as signals, but even the highest apes have not been found able to produce words, even with the most intensive professional instruction. The superior brain of man is apparently a necessity of the mastering of speech. When man became sufficiently intelligent, we must suppose that he gradually increased the number of cries for different purposes. It was a great day when he discovered that speech could be used for narrative. There are those who think that in this respect picture language preceded oral language. A man could draw a picture on the wall of his cave to show in which direction he had gone, or what prey he hoped tocatch. Probably picture language and oral language developed side by side. I am inclined to think that language has been the most important single factor in the development of man. Q: According to the passage, what are probably the two stages in the development of civilized man?
[解析] 选C，信息明示题。文章首句就指出人类发展的两个阶段是原始工具的发明和火的发现，故选C。
单选题
A. The professional instruction.B. The human brain. C. Cries. D. Signals.
【正确答案】
B
【答案解析】[解析] Q: According to the passage, what is apparently necessary for the mastering of speech?
单选题
A. Picture language preceded oral language. B. Oral language preceded picture language. C. They developed side by side. D. Picture language is more important than oral language.
【正确答案】
C
【答案解析】[解析] Q: According to the passage, what is the probable relationship between picture language and oral language?
单选题
A. Its origin is not obscure. B. It's possible for apes to speak human language, but an intensive professional instruction is necessary. C. There are people who doubt that it began very gradually. D. It has been the most important single factor in the development of man.
【正确答案】
D
【答案解析】[解析] Q: What can be said about language?
[解析] 选D，信息明示题。文章开头说The origin of language is also obscure，排除A；紧接着下一句说No doubt it began very gradually，排除C；后面提到even the highest apes have not been found able to pronounce words，even with the most intensive professional instruction，排除B。文章最后一句指出语言对人类的发展很重要，故选D。 [考点] 表“可能”的词及其比较： ①perhaps表示怀疑、不肯定，一般指小于一半的可能性，较多地含有“不大可能”之意。 ②maybe主要用于非正式场合，口语中常用，语气比perhaps轻。 ③possibly强调客观存在的可能性，可能性较perhaps和maybe大，强调有根据、合情合理，含有十之八九的可能性。