问题 判断题

可燃气体与空气混合,在爆炸极限的上限以上,遇明火会燃烧爆炸。

答案

参考答案:错

阅读理解

阅读理解

     One day, when old Jacob and little Jacoble were walking home, the sun began to go down. Old

Jacob was thinking of his house and little Jacoble didn't know what to think. Then he thought of a

wonderful idea, and he cried, "Jacob! Do you know what I saw yesterday? I saw a green rabbit. It

was flying in the air and it was so big, even bigger than an elephant!"

     "You saw that with your own eyes?" asked old Jacob. "Of course I did," said Jacoble proudly. "It's

a good thing that you really saw that big, flying, green rabbit," said old Jacob, "because that old bridge

we are going to walk over is a very strange one. As soon as anyone who hasn't told the truth comes on

it, the bridge breaks in two." They continued walking.

     "Jacob," said Jacoble a little later, "you know that big, green, flying rabbit I saw yesterday ... Well,

it wasn't really flying, and ... it wasn't quite as big as an elephant ... but it was very big, about the size

of a horse!" "Big as a horse?" asked Jacob as they got closer to the bridge and little Jacoble began not

to feel so well.

     "Jacob," said Jacoble. "That big, green rabbit I saw yesterday, well, I had something in my eye and

so I couldn't see that well. It wasn't a very big rabbit but it was green. Yes, that's what it was - all green!"

     Old Jacob didn't say a word. He just walked over the bridge. But Jacoble didn't go after him because

he was afraid and he knew why he was afraid. He stood at the bridge and said, "Oh, Jacob! You know

that rabbit I saw yesterday. It wasn't green. No. It was just a little, brown rabbit."

     Then he was not afraid of anything any more and he ran happily over the bridge.

1. We know from the text that the story happened ______.

A. in the morning

B. inthe afternoon    

C. at dusk (黄昏)  

D. at midnight

2. Jacob considered Jacoble's story ______.

A. humorous    

B. interesting        

C. frightening    

D. unbelievable

3. Why did little Jacoble change his story again and again?

A. Because he was afraid of falling into the river.

B. Because he tried to persuade Jacob to believe it.

C. Because he wanted to frighten Jacob.

D. Because he didn't remember the story clearly.

4. What lesson can we learn from the text?

A. A lie will never be known.

B. True friends don't cheat each other.

C. Telling lies makes one suffer from fears.

D. Making up a story is lying.

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