裂缝假说

阅读理解。

     Whenever the sun dropped and the blue sky came up, my father and I used to climb the mountain near

my house. Walking together, my father and I used to have a lot of conversations through which I learned

lessons from his experiences. He always told me, "You should have goals like climbing the mountain."

Without the mountain-climbing that we both enjoyed, we couldn't have enough time to spend together

because my father was always busy. I really got a lot from mountain-climbing. It gave me time to talk with

my father and to be in deep thought as well as develop my patience.

     Once we climbed a very high mountain. It was so challenging for me because I was only ten years old.

During the first few hours of climbing, I enjoyed the flowers and trees, and the birds' singing; but as time

passed, I got a pain in both of my legs. I want to quit climbing. In fact, I hated it at that moment, but my

father said to me,"You can always see a beautiful sky at the top of the mountain, but you can't see it before

you reach the top. Only there at the top, can you see all of the nice things, just like in life." 

     At that time, I was too young to understand his words. But later after that, I got new hope and confidence.

I found myself standing at the top of the mountain. And there, I could see the whole of the sky, which was as

clear as crystal (水晶).

1. The passage tells us that mountain-climbing was ______ for Father and Son.

A. hard

B. enjoyable

C. painful

D. comfortable

2.  The word"quit" in the passage means "______".

A. carry on

B. put off

C. give up

D. pick up

3. Which of the following is the closest in meaning to the father's words in the second paragraph?

A. ou will get all you need at the top of the mountain.

B. The sky is always as clear as crystal.

C. You can find life is full of nice things.

D. Never give up half-way.

4. We can infer (推断) from the last paragraph that ______.

A. the writer was very successful in his life

B. the writer reached the top of the mountain.

C. though the writer was young, he could understand his father.

D. the writer used to stop half-way when he climbed the mountain.

5. The best title for the passage is "______".

A. Reaching the Top of the mountain

B. Standing at the Top of the Mountain

C. Conversations between Father and Son

D. How to Get to the Top of the Mountain

写出一个整数m，使得二次三项式x²-mx+7在实数范围内能分解因式．符合条件的整数m可以是______．

我国少数民族中，回族人和阿拉伯人宗教信仰相同的是[ ]

A．佛教

B．基督教

C．伊斯兰教

D．道教

加涅于1969年与其同事一起第一次正式提出______概念。

按照规定，非晚婚的新婚员工凭《结婚证书》可给（）天婚假。

A.1

B.3

C.5

D.7