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Do you like to go camping (Ò°Óª)? Do you know how to start a fire? If you don't know how to start a fire, you   1   your food, and can't sit by the side of a fire, and can't keep yourselves   2  .      Long, long ago people   3   how to start fires. They probably started fires from lightning (ÉÁµç). But they had to   4   the lightning fire burning, for there was   5   to start it   6  .      Later people learned how to start fires. They   7   out hitting two pieces of stone (ʯͷ) together could make a spark (»ð¹â).The spark could set   8   on fire (set¡­on fire ʹ¡­¡­ ȼÉÕ). They could start this kind of fire again if it went out (Ϩ»ð).      Then people also learned to make a fire by rubbing (Ħ²Á) two sticks together. They made a hole (¶´) on a large stick and put the   9   stick into the hole. And then they turned the stick again and again.  10  a few minutes they started a fire.      About two hundred years  11 , people began to  12  matches (»ð²ñ). One early match looked  13  the match we use today. The match gave people a  14  way to start fires. Today people are  15  finding new ways to start fires. One of the new ways to start a fire is to use an electric fire starter (µç×Ó´ò»ðÆ÷). Now you can  16   matches and electric fire starter at  17 . Of course an electric fire starter is more expensive than  18 ,  19  it is useful.      After people learned to make fires, their lives became  20 .

(     )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 harder B. 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

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