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Bats are the only flying mammals in the world. They can't see very well. It was long believed, and still is in many places, that all bats are blind. “Blind as a bat” is often heard. Yet they have no trouble flying in the darkest nights and finding their way around very well. How can bats fly and see at night? They fly by radar. The bat's radar system works the same way as the one that ships and planes use. As a bat flies through the air, he makes a sound that is too high for our ears to hear. If the sounds hit things they come back. The bat's ears receive the messages. In this way they are able to tell the bat where the things are. Bats go out to look for food at night. In the daytime they hang in some dark places. Some people have the bats as bad animals. In fact they are useful animals.

1．The bat is________.

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2．“blind as a bat” means a person who is ________.

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A．blind in both eyes

B．blind in neither of the eyes

C．not able to see well

D．able to see anything well

3．Bats have no trouble flying in the darkest nights because ________.

[　　]

A．they have very poor sight

B．they have a kind of radar system to help them

C．they have to look for food

D．they can see things in the dark nights

4．Bats go out to look for food ________.

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A．at noon

B．in the afternoon

C．during the daytime

D．after the sun sets and before the sun rises

5．Bats are ________.

[　　]

　　Bats are the only flying mammals(哺乳动物) in the world. They can't see very well. It was long believed that all bats are blind. “Blind as a bat” is often heard.

　　Yet they have no trouble flying on the darkest nights and finding their way around very well. How can bats fly and see at night? They fly by radar(雷达).

　　The bat's radar system(雷达系统) works the same way as the one that ships and planes use. As a bat flies through the air, he makes a sound that is too high for our ears to hear. When the sounds hit things, they come back. The bat's ears receive the messages. In this way they are able to tell the bats where the things are.

　　Bats go out to look for food at night. Some people have the bats as bad animals. In fact, they are useful animals.

1．This article (文章) tells us about ________ .

[　　]

A．the bat like a bird with things

B．the radar

C．a blind man

D．the bat used for playing table tennis

2．The bat is ________ .

[　　]

3．“As blind as a bat” means a person who is ________ .

[　　]

4．Bats have no trouble flying on the darkest nights because ________ .

[　　]

A．they have very poor sight(视力)

B．they have a kind of radar system to help them

C．they have to look for food

D．they can see things in the dark nights

5．Bats go out to look for food ________ .

[　　]

A．at noon

B．in the afternoon

C．during the day-time

D．after the sun sets and before the sun rises

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

The bat’s radar system（系统）works the same as ships and planes do．As a bat flies through the air，he makes a sound（声音）．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．

“Mum, I want to make you a bet,” I said. “If I go a whole year without TV, will you give me a hundred dollars?”　　
“Well, if you can   1  do it, …”
“Of course I can,” I replied, trying to convince   2 .
In fact, all this started from my   3  of a picture in the newspaper. I couldn’t bear to look at that boy. He said that he had   4  one year without TV for a hundred dollars,   5 me with mocking eyes. It seemed he was saying, “I did it,   6  you can’t!”. I glared at the boy’s face.
That year I did a lot of things. For example, my father taught me to   7 , which became my favorite sport.   8  winter afternoons snowball wars with my neighbors offered daily drama. I went on bike trips with my friends and swam as much as a fish.　　
It was unbelievable how much   9  I had without TV. I learned so many new games. I guess the   10  thing I learnt, though, was self-motivation(上进心).　　
I started to do my homework. I went from a D student to an A student within a couple of   11 .　　
I used to   12  reading if there were no   13 , but now I began to read and enjoy it. I could arrange off all the pictures just the way I wanted them—my own little TV, right   14  my head!
I’m surprised what I did. I got a lot more from the   15  than just the 100 dollars!