2.What is the reason for exploring space based on Paragraph 2?
A.Humans are natureborn to do so.
B.Humans have the tendency to fight.
C.Humans may find new sources of food.
D.Humans don't like to stay in the same place.
答案:A 细节理解题。根据第二段的第一句可知人类探索太空的原因是其基因的构成。
3.The underlined word “spinoffs” in Paragraph 4 probably refers to ________.
A.survival chances
B.potential resources
C.unexpected benefits
D.physical
possessions
答案:C 词义猜测题。后面所说的“improvements in earthquake prediction,in satellites for weather forecasting and in communications systems”可知此处的划线短语意为“益处,好处”。
4.What makes it possible for humans to live on other planets?
A.Our genetic makeup.
B.Resources on the earth.
C.The adaptive ability of humans.
D.Byproducts in space exploration.
答案:C 细节理解题。根据最后一段的第一句话可知,人类的适应能力会让人类在其他星球生存下去。
5.Which of the statements can best sum up the passage?
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