Bats are the only flying mammals(哺乳動物)in the worldThey can’t see very well,but people believe they have no trouble(干某事不困難)flying on darkest nights and finding their way around very wellHow can bats fly(飛)and see at night? They fly by radar(雷達(dá)).

The bat’s radar system(系統(tǒng))works the same as ships and planes doAs a bat flies through the air,he makes a sound(聲音).The sound is high enough for his messageIn this way it tells the bat where the thing is

Bats go out to look for food only at nightIn the daytime(白天)they rest in some dark places

1The bat is ________ in Chinese

A.蝙蝠                      B.老鼠                       C.蚊子                      D.蜻蜓

2The bat has no trouble flying on the darkest nights because ________

Aits eyes are good                                         Bit can’t see well

Cit can make a sound                                   Dit has a kind of radar system to help it

3When does the bat begin to go out to look for food?

AIn the daytime                                         BIn the early morning

CWhen night comes                                  DIn the late afternoon

4The batseesthings with its ________

Aeyes                       Bnose                       Cmouse                   Dears

5Which of the following is right?

AThe bat is the only flying animal in the world

BThe bat is blindbut it canseeits food

CNot all bats are afraid of flying in the sun

DThe bat often comes out during daytime,too

1、ADCDB

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Bats are the only flying mammals(哺乳動物)in the world.They can’t see very well,but people believe they have no trouble(干某事不困難)flying on darkest nights and finding their way around very well.How can bats fly(飛)and see at night? They fly by radar(雷達(dá)).

The bat’s radar system(系統(tǒng))works the same as ships and planes do.As a bat flies through the air,he makes a sound(聲音).The sound is high enough for his message.In this way it tells the bat where the thing is.

Bats go out to look for food only at night.In the daytime(白天)they rest in some dark places.

1.The bat is ________ in Chinese.

A.蝙蝠                      B.老鼠                       C.蚊子                      D.蜻蜓

2.The bat has no trouble flying on the darkest nights because ________.

A.its eyes are good                                         B.it can’t see well

C.it can make a sound                                   D.it has a kind of radar system to help it

3.When does the bat begin to go out to look for food?

A.In the daytime.                                         B.In the early morning.

C.When night comes.                                  D.In the late afternoon.

4.The bat“sees”things with its ________.

A.eyes                       B.nose                       C.mouse                   D.ears

5.Which of the following is right?

A.The bat is the only flying animal in the world.

B.The bat is blind,but it can“see”its food.

C.Not all bats are afraid of flying in the sun.

D.The bat often comes out during daytime,too.

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