问题 选择题

使用显微镜时,错误的操作是(  )

A.对光是要看到白亮的视野

B.安放时镜座距实验台边缘约5cm

C.观察使用右眼看着目镜,左眼闭着

D.当光线较暗时,用反光镜的凹面来对光

答案

答案:C

是用显微镜进行观察时,两眼睁开,左眼看目镜,右眼用于画图。

阅读理解

阅读理解。

     A man came out of the airport. A lot of taxis were there. He asked the name of every taxi-driver. Then

he took the 3rd one. It cost 5 dollars from the airport to the hotel. "How much does it cost for the whole

day?" the man asked. "One hundred dollars," said the taxi-driver. This was very expensive, but the man

said it was OK.

     The driver took the man everywhere. He showed him all the parks and museums in the city. In the

evening, they went back to the hotel. The man gave the driver 100 dollars and said, "What about tomorrow?"

The taxi-driver looked at the man and said, "Tomorrow? It's another 100 dollars." But the man said, "That's

OK! See you tomorrow." The driver was very pleased.

     The next day the driver took the man everywhere again. They visited all the parks and museums again.

And in the evening they went back to the hotel. The man gave the driver 100 dollars again and was going home

tomorrow. The driver was unhappy because he liked the man and above all, 100 dollars a day was a lot of money.

"So you're going home. Where do you come from?"  he asked. "I come from New York." "New York!"

said the driver. "I have a sister in New York. Her name is Lucy. Do you know her?" "Of course I know her.

She gave me 200 dollars for you!"

1. The man came from ______. [ ]

A. America

B. England

C. Canada

D. Australia

2. The man took the 3rd taxi because            .[ ]

A. the 3rd driver was a kind-hearted man

B. the other taxi-drivers asked for more money

C. the other drivers didn't like him

D. he didn't want to spend his own money on the coming visit

3. Usually the cost of the travelling one day may be ______. [ ]

A. one hundred dollars

B. more than one hundred dollars

C. less than one hundred dollars

D. two hundred dollars

4.            asked the man to give the money for the taxi-driver. [ ]

A. The man's sister

B. No one

C. The man himself

D. The driver's sister

5. The driver was unhappy ______. [ ]

A. when the man asked every taxi-driver his name

B. during the two-day visit

C. when the man asked him for his sister's name

D. when he heard the man's last words.

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