问题 选择题

当一个人逐渐走近一盏路灯并离开时,他在路灯下的影子的长度变化是(  )

A.先变长后变短

B.先变短后变长

C.逐渐变短

D.逐渐变长

答案

当人在远处时,人与灯光的夹角小,形成的影子长;

当人逐渐走近路灯时,人与灯光的夹角会变大,此时形成的影子会变短;

当人经过路灯逐渐远离时,人与灯光的夹角又会变小,形成的影子再次变长.

故选 B.

阅读理解

阅读理解。

     Some time ago, I discovered a whole lot of antique (古董) shops near my home. So I left home one

morning carrying the chair that had a broken leg. I didn't think there would be any difficulty in getting it

mended. I went into the first shop expecting a friendly recaption (接待). I was quite wrong. The man

wouldn't even look at my chair.

     The second shop, though slightly more polite, was just the same, and the third and the fourth-so I

decided that my approach must be wrong.

     I went into the fifth shop with a plan in my mind. I placed the chair on the floor and said to the

shopkeeper, "Would you like to buy a chair?" He looked it over carefully and said, "Yes. How much do

you want for it, sir?" "Twenty pounds," I said. "OK," he said, "I'll give you twenty pounds." "It's got a

slightly broken leg," I said. "Yes, I saw that, it's nothing."

     Everything was going according to the plan and I was getting excited. "What will you do with it?" I

asked. "Oh, it will be easy to sell once the repair is done." "I'll buy it," I said. "What do you mean? You've

just sold it to me," he said. "Yes, I know but I've changed my mind. I'm sorry, I'll give you twenty-seven

pounds for it." "Your must be crazy," he said. Then, suddenly the penny dropped. "I know what you want.

You want me to repair your chair." "You're right," I said. "And what would you have done if I had walked

in and said, 'Would you mend this chair for me?'" "I wouldn't have agreed to do it," he said. "We don't do

repairs, not enough money in it and too much trouble. But I'll mend this for you, shall we say for five?" He

was a very nice man and was greatly amused (感到有趣) by the whole thing.

1. We can learn from the text that in the first shop the writer ____.

A. was rather impolite

B. was warmly received

C. asked the shopkeeper to buy his chair

D. asked the shopkeeper to repair his chair

2. The expression "the penny dropped" in the last paragraph means the shopkeeper ____.

A. changed his mind

B. accepted the offer

C. saw the writer's purpose

D. decided to help the writer

3. How much did the writer pay?

A.£5.

B.£7.

C.£20.

D.£27.

4. From the text, we can learn that the writer was ____.

A. honest

B. careful

C. smart

D. funny

5. The underlined word "approach" in the second paragraph means ____.

A. a plan for doing things

B. a decision to sell things

C. an idea of repairing things

D. a way of doing things

单项选择题