Passage 2
Until the very latest moment of his existence, man
has been bound to the planet on which be originated and
developed. Now he had the capability to leave that planet 1. has
and move out into the universe to those worlds which he
had known previously only directly. Men have explored 2. indirectly
parts of the moon. put spaceships in orbit around another
planet and possibly within the decade will land into anoth- 3. on
er planet and explore it. Can we be too bold as to sug- 4. so
gest that we may be able to colonize other planet 5. planets
within the not-too-distant future? Some have advocat-
ed such a procedure as a solution to the population
problem: ship the excess people off to the moon. But
we must keep in head the billions of dollars we might 6. mind
spend in carrying out the project. To maintain the
earth's population at its present level, we would
have to blast off into space 7,500 people every hour of
every day of the year.
Why are we spending so little money on space 7. much
exploration? Consider the great need for improving 8. Considering
many aspects of the global environment, one is surely
justified in his concern for the money and resources
that they are poured into the space exploration ef- 9. 去掉
forts. But perhaps we should look at both sides of the
coin before arriving hasty conclusions. 10. arriving at/reaching
Passage 3Most people work to earn a living and they
Produce goods and services. Goods are either
agricultural (like maize) or manufactured (like
cars). Services are such things like education, 1. as
medicine, and commerce. These people provide 2. Some
goods; some provide services. Other people provide
both goods or services. For example, in the same 3. and
garage a man may buy a car or some service which
helps him maintain his car.
The work people do is called as economic 4. 去掉
activity. All economic activities taken together make
up the economic system of town, a city, a country,
or the world. Such economic system is the sum-total 5. 之前加an
of what people do and what they want. The work
people do either provides what they need or provides
the money with that they can buy essential 6. which
commodities. Of course, most people hope to have
enough money to buy commodities and services which
are essential but which provide some particular 7. nonessential
personal satisfaction, such as toys for children, visits 8. 之后加to
the cinema, and books.
The science of economist is basis upon the facts 9. based
of our everyday lives. Economists
study our everyday
lives and the general life of our communities in order
to understand the whole economic system of which we
are a part. They try to describe the facts of the
economy in which we live, and to explain how it
works. The economist methods should of course be 10. economist’s
strictly objective and scientific
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