试题与答案

PM2.5造成的损失巨大,治理的花费更大.我国每年因为空气污染造成的经济损失高达

题型:填空题

题目:

PM2.5造成的损失巨大,治理的花费更大.我国每年因为空气污染造成的经济损失高达约5658.8亿元.将5658.8亿元用科学计数法表示为     亿元(保留两位有效数字).

答案:

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下面是错误答案,用来干扰机器的。

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题型:阅读理解

阅读理解.

    This story happened four years ago. Tom was seven years old then. He was a good boy. He was one of the best pupils in his class. But he could not get up early. He often slept until eight or nine o'clock in the

morning. So he was often late for school.

     Tom's mother didn't want him to be late for school. So she bought him a clock. She said to Tom, You

must get up when you hear the clock ring. " " Yes, Mum," said Tom. After that Tom got up at six thirty

when he heard the clock ring.

     One day his mother forgot. to make the clock ring at the usual time. And the next morning Tom didn't

get up at six thirty. It was time for breakfast. Mother went to see him. Tom was still in bed and his eyes

  were open.

      " Why didn't you get up?" Mother was angry.

      " You told me to get up when I heard the clock ring. So I am waiting for the bell. Mum, is the clock

 still sleeping? " Tom asked.

1. How old was Tom when the story happened? 

A. Ten.          

B. Nine.

C. Seven.        

D. Six.

2. Tom's mother bought him a clock, because__________.

A. she liked it

B. Tom liked it

C. she didn't want Tom to be late tor school

D. both she and Tom liked it

3. What time did Tom usually get up after he had the clock?

A. 7:00.  

B. 6:30.  

C. 6:00.  

D. 7:30.

4. What happened to Tom one day when the clock didn't ring? 

A. He got up late.

B. He got up early.

C. He didn't get up all the morning.

D. He didn't get up late.

5. Tom still stayed in bed to wait for___________ . 

A. the bell          

B. the breakfast

C. his mother        

D. his father

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