2. 外语
  3. Fire can help people in many ways. Btu it can also be very harmful(有害的). Fire can keep your house (41) ,give light and cook fo

Fire can help people in many ways. Btu it can also be very harmful(有害的). Fire can keep your house (41) ,give light and cook fo

admin2012-03-27  31
问题     Fire can help people in many ways. Btu it can also be very harmful(有害的). Fire can keep your house  (41)  ,give light and cook food. But fire can burn things,  (42)  . Big fire can burn trees,houses, animals or people.
    Nobody knows how people began to use fire. But there are  (43)   interesting old stories about how a man or woman started a fire. One is  (44)   a man. The man  (45)   a very long time ago. He went up the sun and   46   fire down.
    Today people know how to make a fire with matches (火柴). Children sometimes like to play with  (47)  . But matches can be very dangerous. One match can burn  (48)  ,and then it could burn a house. A small fire can turn into a big fire very quickly. So you  (49)  be careful with matches.
    Be careful with fire,and it will  (50)   you. But if you aren’t careful with fire,it may hurt you.
选项 A、can
B、must
C、will
答案B
解析 考查情态动词。can指“能够”，表示的是有能力；must指“必须”，强调的是义务；will只表意愿和将来。由句意可知，这里语气很强，表示的是一种告诫，因此选must。
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