三． 完型填空（共20小题；每小题1分，满分20分）
阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
When I come across a good article in reading newspapers，I often want to cut and keep it．But just as I am about to do so，I find the article on the   21  side is much interesting．It may be a discussion of the way to   22  in good health，or advice about how to behave and   23   yourself in society．If I cut the front articles，the opposite one is likely to suffer   24  ，leaving one half of it or keeping the text    25   the title．Therefore，the scissors would stay before they start，    26  the cutting would be halfway done when I find out the   27   result．
Sometimes two things are to be done at the same time，both worth your   28   ．You can only take up one of them；the other has to wait or be   29  up．But you know the future is unpredictable—the changed situation may not   30  you to do what is left behind．Thus you are   31   in a difficult position and feel sad．How come nice    32 and clever ideas should gather around all at once? It may happen that your life   33  greatly on your preference of your one choice to the other．
In fact that is what   34  is like；we are often   35  with the two opposite sides of a thing which are both  36   like a newspaper cutting．It often occurs that our attention is   37  to the thing only after we get into another．The former may be more important than the latter and this   38  _ a divided mind．I still remember a philosopher’s   39 ：“When one door shuts，another opens in life．”So a casual（不经意的）    40   may reward one．
21．A．same               B．opposite           C．either               D．front
22．A．get                 B．bring              C．1ead               D．keep
23．A．enjoy              B．help                C．conduct           D．dress
24．A．damage            B．destroy            C．hurt                D．injury
25．A．on                  B．for                  C．without            D．off
26．A．or                   B．but                 C．so                   D．for
27．A．satisfying          B．regrettable        C．surprising         D．impossible
28．A．courage           B．patience           C．strength           D．attention
29．A．given               B．picked             C．held                D．made
30．A．persuade          B．agree               C．allow              D．tell
31．A．filled              B．struck              C．caught             D．attracted
32．A．chances            B．conditions         C．wishes             D．ways
33．A．progresses         B．goes                C．changes            D．improves
34．A．study               B．1ife                C．society             D．nature
35．A．supplied           B．connected         C．fixed               D．faced
36．A．available       B．desirable          C．considerable    D．enjoyable
37．A．turned             B．transferred       C．paid                 D．drawn
38．A．gives way to    B．gives rise to      C．gets through to  D．gets close to
39．A．remarks          B．sayings            C．slogans            D．comments
40．A．behavior             B．action              C．choice          D．attitude