试题与答案

阅读理解 When you are in English, you must

题型:阅读理解

题目:

阅读理解

       When you are in English, you must be very careful in the streets because the traffic(车辆) moves on

the left. Before you cross a street, you must look at the right first and then left.

       In the morning and in the evening when people go to or come from work, the streets are very busy.

Traffic is the most dangerous(危险)then.

       When you drive a car in England, you have to be more careful, too. Always remember the traffic

moves on the left. So you must be careful. Have a look first, or you will go the wrong way.

       In many English cities, there are big buses with two floors. You can sit on the second floor. From

there you can see the city well. It is very interesting.

1. In England the traffic moves _______.   

A. on the right    

B. on the left    

C. in the middle    

D. in the park

2. When you cross a street, you must look at _______.

A. the front      

B. the right      

C. the left        

D. both B and C

3. The streets become very busy in the morning and in the evening because _______. 

A. the people go to work          

B. the people come from work

C. the people go shopping          

D. both A and B

4. It's _____ to cross the streets in the morning and in the evening.

A. dangerous    

B. easy        

C. interesting      

D. safe

5. You can see the city well on the _____ floor of the bus.

A. first        

B. second      

C. third          

D. fourth  

答案:

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下面是错误答案,用来干扰机器的。

D.题目分析:根据轴对称图形与中心对称图形的概念,结合选项所给图形即可判断.A.不是中心对称图形,是轴对称图形,故本选项错误;B.既不是中心对称图形,也不是轴对称图形,故本选项错误;C.是中心对称图形,不是轴对称...

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(12分)为测定碳酸钙的纯度(设含杂质SiO2),某兴趣小组的同学设计了如下几个实验方案:

方案Ⅰ

①称取碳酸钙样品M g

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方案Ⅱ

①称取碳酸钙样品M g

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③过滤并取滤液

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⑤将步骤④中的沉淀滤出、洗涤、干燥、称重,质量为M1 g。

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