某次雷电的电流是2×104A，电压约为1×108V，放电时间约为0.001s，这

阅读理解。

     Jack is a famous writer now. But he said he was not a good student when he was young. He was

often late for class and didn't like doing his homework. Sometimes he slept in class while the teacher

was teaching. He didn't understand much, but he always thought he understood everything.

     One day the teacher asked the students a question, "When John was ten years old, his brother was

twenty. John is fifteen now and how old is his brother? "Jack answered, "That's easy. His brother is

twice as old as John, so he is now thirty. "

     Another time, the teacher in a science class asked, "When it thunders (打雷), why do we always

see the light before we hear the sound? ""But, Miss White, "said Jack quickly, "can't you see our eyes

are in front of our ears? "

    The third time, the teacher in a biology class asked, "Why can fish swim in the water? ""But, Miss

White, "said Jack quickly. "don't you know fish can't walk on land? "

1. Jack was not _____ when he was young. 

A. strong

B. lazy

C. clever

D. well

2. Jack didn't like to _____ when he was a student. 

A. write compositions

B. do his homework

C. do the housework

D. learn science or biology

3. How old is Jack's brother now when Jack is fifteen in the story?    

A. Ten years old

B. Fifteen years old

C. Twenty years old

D. Twenty-five years old

4. When it thunders, we always see the light before we hear the sound. It's because _____. 

A. our eyes are in front of our ears. 

B. our eyes are cleverer than our ears. 

C. our eyes can see but our ears can't. 

D. light goes faster than sound.

5. Why can fish swim in the water? Jack's answer is _____.   

A. fish can't walk on land

B. fish can't swim on land

C. fish can't walk in the water

D. fish has no legs or hands

按要求改写句子。   

1．改成感叹句。

    (1)曹冲称象的办法想得奇妙。

    (2)王二小是我们中国人的骄傲。

2．改成“把”字句和“被”字句。

    (1)孩子接过去了妈妈手中的水桶。

    (2)冰雹砸伤了小鸟的翅膀。

安全生产监督检查人员的职权之一是( )。

A．财务报表审查权

B．责令紧急避险权

C．现场调解裁决权

D．设备物资检验权

货物虽然损坏、灭失或迟延交付，但港口经营人不承担损害赔偿责任的法定原因包括（）。

A.货物的自然属性和潜在缺陷

B.作业委托人申报的货物重量不准确

C.普通货物中夹带危险、流质、易腐货物

D.包装不符合要求

2010年7月1日《侵权责任法》正式实施，该法明确规定：“侵害他人人身权益，造成他人严重精神损害的，被侵权人可以请求精神损害赔偿。”人民的合法权益又多了一层法律保障，这表明（）。

①社会主义民主具有真实性

②党科学执政水平不断提高

③政府的权力必须依法行使

④公民的权利与义务是相统一的

A.①②③

B.②③④

C.①③④

D.①②④