阅读理解。
The desire to make explorations is born with man. Wherever his imagination goes, man also has a strong
wish to go. A large part human history is connected with the exploration of the world in which we live. Again
and again people have set out with surprising courage and patience to look into unknown regions and lands to
see what had not yet been seen, to make known the unknown. With kites, balloons and aircraft they left the
ground to pass through the lower atmosphere. Now the outer space receives their attention.
Why should man take the trouble of conquering space? It is hard to list the specific practical benefits that
will result in. But one knows, from past experience in other areas, that man will surely see and discover new
things in space that will increase our scientific knowledge, and this new knowledge will find its way into
valuable practical uses. What we learn about man himself, from his experience in space, and from the effects
of space and the space flight environment on him, will be extremely valuable. The new techniques developed
to carry out the exploration of space, and to keep man alive in space, will certainly find practical uses in
everyday life in some way. The areas that will benefit are manifold. They include communication, generation
of power, transportation and travel, food production, materials, fuels and many others. But to say definitely
just what the practical results will be is almost impossible.
1. The main idea of the first paragraph is that _____. [ ]
A. man desires to explore what is unknown
B. man often goes wherever his dreams go
C. man is no longer interested in the study of the land and sea now
D. man's history is the exploration of the world
2. The word "manifold" in the second paragraph probably means _____. [ ]
A. vast
B. various
C. valuable
D. practical
3. The author seems to be in favor of _____. [ ]
A. doubting the necessity of the space exploration
B. the exploration of space
C. exploring more in space than in the sea
D. his experience in space
