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| 一只苍蝇 | |
| 摘 要： | A fly can walk up a wall.It can walk upsidedown,too.But how does the fly do that?A fly has six legs.It walks with three legs up and threelegs down.Each leg has a little sticky pad on it,almostlike a shoe.The pads stick to the wall.So a fly can walk upa wall and it doesn't fall.根据上文,给下面各题选择正确的答案。()(1)We can't walk up a wall,but a______can.A.pig B.dog C.fly D.cock()(2)A fly has______legs.A.three B.four C.five D.six()(3)How many sticky pads does a fly have?A.three B.six C.… |
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