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问题 填空题
已知y1=2x+3，y2=5x-
1
2
，如果y1=2y2，则x=______．
答案

∵y1=2x+3，y2=5x-

1
2
，y1=2y2∴2x+3=2（5x-
1
2
），

∴2x+3=10x-1

∴2x-10x=-1-3

∴-8x=-4

∴x=

1
2
．

故填：

1
2
．

完形填空
完形填空。
     The bus stops at the next stop.   1   mother and her child   2  . On the bus and sit  down.  The
conductor (售票员)  comes    3    them for the tickets (票). The mother says, "one ticket"   4   the
Children's Park." The conductor   5   at the small child, and says to him. "How    6   are you, little
boy? " The mother   7   to speak,   8   the conductor stops her. They boy   9   "Mother says I'm
four years  10  home and two on the bus." All the other people laugh.
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