完形填空。
Do you like to go camping (野营)? Do you know how to start a fire? If you don't know how to start a fire,
you1your food, and can't sit by the side of a fire, and can't keep yourselves2 .
Long, long ago people3how to start fires. They probably started fires from lightning (闪电). But they
had to4the lightning fire burning, for there was5to start it6.
Later people learned how to start fires. They7out hitting two pieces of stone (石头) together could make
a spark (火光).The spark could set8on fire (set…on fire 使…… 燃烧). They could start this kind of fire
again if it went out (熄火).
Then people also learned to make a fire by rubbing (摩擦) two sticks together. They made a hole (洞) on a
large stick and put stick into the hole. And then they turned the stick again and again.10a few minutes
they started a fire.
About two hundred years11, people began to12matches (火柴). One early match looked13the match
we use today. The match gave people a14way to start fires. Today people are15finding new ways to start
fires. One of the new ways to start a fire is to use an electric fire starter (电子打火器). Now you can16
matches and electric fire starter at17 . Of course an electric fire starter is more expensive than18,19it is
useful.
After people learned to make fires, their lives became20.
( )1. A. can cook
( )2. A. quiet
( )3. A. have known
( )4. A. ask
( )5. A. no way
( )6. A. only
( )7. A. took
( )8. A. dry paper
( )9. A. larger
( )10. A. After
( )11. A. before
( )12. A. invented
( )13. A. up
( )14. A. quick and easy
( )15. A. always
( )16. A. sell
( )17. A. home
( )18. A. a match
( )19. A. so
( )20. A. harder and harderB. can eat
B. full
B. knew
B. keep
B. no idea
B. again
B. found
B. wet leaves
B. large
B. Before
B. ago
B. do
B. different
B. slow and difficult
B. already
B. buy
B. factories
B. a box of match
B. and
B. easier and easier C. can’t cook
C. hot
C. haven’t known
C. let
C. a way
C. more
C. looked
C. wet paper
C. smaller
C. When
C. later
C. make
C. the same
C. new and interesting
C. even
C. see
C. shops
C. a box of matches
C. but
C. longer and longer D. can’t eat
D. warm
D. didn’t know
D. make
D. an idea
D. either
D. heard
D. dry leaves
D. smallest
D. For
D. after
D. used
D. like
D. important and clever
D. still
D. find
D. towns
D. a box matches
D. because
D. happier and happier