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【答案】
(1)0
(2)1
(3)1
(4)0
(5)0
【解析】(1)根据Nobody knows how people began to use fire. 可知,没有人知道人们是怎样开始使用火的。所以答案是错误。(2)根据Big fire can burn trees, houses, animals or people.可知,大火很危险。所以答案是正确。(3)根据Fire can help people in many ways. But it can also be very harmful(有害的).可知,火既有利,又有害。所以答案是正确。(4)根据One match can burn a piece of paper, and then it could be a house.可知,一个火柴可以烧着一张纸,以致于烧了一座房子。所以答案是错误。(5)根据Fire can help people in many ways. 可知,火被用在许多方面。所以答案是错误。