英语六级考试网(CET6)

Until the very latest moment of his existence, man has
been bound to the planet on which he originated and
developed. Now he had the capability to leave that planet ___1___
and move out into the universe to those worlds which he has
known previously only directly. Men have explored parts of ___2___
the moon, put spaceships in orbit around another planet and
possibly within the decade will land into another planet and ___3___
explore it. Can we be too bold as to suggest that we may be ___4___
able to colonize other planet within the not—too—distant ___5___
future? Some have advocated 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 ___6___
might 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___
exploration? Consider the great need for improving many ___8___
aspects of the global environment, one is surely justified in
his concern for the money and resources that they are poured ___9___
into the space exploration efforts. But perhaps we should
look at both sides of the coin before arriving hasty conclusions. ___10___

     Have you ever wondered what our future is like?Practically all people _1_
a desire to predict their future _2_.Most people seem inclined to _3_ this
task using causal reasoning.First we _4_ recognize that future circumstances
are _5_ caused or conditioned by present ones.We learn that getting an
education will _6_ how much money we earn later and that swimming beyond the
reef may bring an unhappy _7_ with a shark.
Second,people also learn that such _8_ of cause and effect are
probabilistic(可能的) in nature.That is,the effects occur more often when the
causes occur than when the causes are _9_, but not always.Thus,students learn
that studying hard _10_ good grades in most instances,but not every
time.Science makes these concepts of causality and probability more _11_ and
provides techniques for dealing _12_ then more accurately than does causal
human inquiry.In looking at ordinary human inquiry,we need to _13_ between
prediction and understanding.Often,even if we don't understand why,we are
willing to act _14_ the basis of a demonstrated predictive ability.
Whatever the primitive drives _15_ motivate human beings,satisfying them
depends heavily on the ability to _16_ future circumstances.The attempt to
predict is often played in a _17_ of knowledge and understanding.If you can
understand why certain regular patterns _18_,you can predict better than if
you simply observe those patterns.Thus,human inquiry aims _19_ answering
both "what" and "why" question,and we pursue these _20_ by observing and
figuring out.

__1__1. [A]exhibit [B]exaggerate [C]examine [D]exceed
__2__2. [A]contexts [B]circumstances [C]inspections [D]intuitions
__3__3.[A]underestimate [B]undermine [C]undertake [D]undergo
__4__4. [A]specially [B]particularly [C]always [D]generally
__5__5. [A]somehow [B]somebody [C]someone [D]something
__6__6. [A]enact [B]affect [C]reflect [D]inflect
__7__7. [A]meeting [B]occurrence [C]encounter [D]contact
__8__8. [A]patterns [B]designs [C]arrangements[D]pictures
__9__9. [A]disappointde [B]absent [C]inadequate [D]absolute
__10__10.[A]creates [B]produces [C]loses [D]protects
__11__11.[A]obscure [B]indistinct [C]explicit [D]explosive
__12__12.[A]for [B]at [C]in [D]with
__13__13.[A]distinguish [B]distinct [C]distort [D]distract
__14__14.[A]at [B]on [C]to [D]under
__15__15.[A]why [B]how [C]that [D]where
__16__16.[A]predict [B]produce [C]pretend [D]precede
__17__17.[A]content [B]contact [C]contest [D]context
__18__18.[A]happen [B]occur [C]occupy [D]incur
__19__19.[A]at [B]on [C]to [D]beyond
__20__20.[A]purposes [B]ambitions [C]drives [D]goals