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LOOK,²Bats(蝙蝠) are the only flying “animals” in theworl

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LOOK,
²Bats(蝙蝠) are the only flying “animals” in the
world.It is known to all that they cannot see very well.“As b____(1) as a bat” is often h____(2).Yet,they have no trouble flying on the
d_____(3) nights and finding their way r____ (4) very well.Why can bats fly and see at night?They
fly by “radar(雷达)”.The bat's radar w_____ (5) the same way as the radar on ships
and planes.As a bat flies
t____(6) the air,it makes a sound.If the sounds hit t_____(7),they will come back and
the bat's e_____(8) will receive the message.In this way,the bat is a_____(9) to know where the
things are.Bats go out for f______(10) at night.In the daytime,they hang in some dark
places.
LOOK,²Bats(蝙蝠) are the only flying “animals” in theworl
1.blind 2.heard 3.darkest 4.round 5.works 6.through 7.things 8.ears 9.able 10.food