问题 问答题 简答题

为什么说太平洋的面积在变小?

答案

参考答案:

科学家们已经测出,在世界大洋中,太平洋是最古老的海洋。5亿年前,地球就是由以太平洋为中心的一片古海洋和以非洲、南美、澳大利亚、印度洋和南大西洋合成的一块古大陆组成的,今天欧亚大陆的大部分当时全是汪洋。此后,太平洋逐渐收缩,伴随的是大西洋的不断扩张。自距今2.25亿年前的三叠纪以来,大西洋从无到有,不断扩大自己的“地盘”;而太平洋却节节败退,领地越来越小。大地测量专家利用最新技术测出,北美大陆和欧亚大陆仍在缓慢地移动着,目前这些大陆板块正以每年1.9厘米左右的速度相背漂移,而南大西洋洋底自6500万年以来,一直以平均每年4厘米的速度向两侧分离开来,也就是说,大西洋仍在逐年变宽。大西洋的另一边是太平洋,一个变宽了,另一个当然就非变窄不可。

阅读理解

阅读理解。

     A few days ago I got a call from my old college friend whom I haven't seen for a very long time.

The topic, which was about all the good old times that we had changed to a touching story when he

started talking about his father.

     His father's declining health made him stay at the hospital. Because of his illness, his father suffered

from insomnia(失眠) and often talked to himself. My friend, who had not been able to sleep for a few

days as he had to keep watching his father's condition, became irritated and told his father to keep silent

and try to get some sleep. His father said that he really wanted to sleep well because he was very tired

and told my friend to leave him alone in the hospital if he did not want to keep him company.

     After his father finished talking, he fell unconscious(失去知觉) . My friend was very sorry for

speaking the ill words towards his father. My friend, whom I knew as a tough person, cried as a baby

on the other end of the telephone. He said that from that moment on, he prayed every day, asking God

to let his father wake up from his coma. He promised himself that whatever words came out from his

father's mouth after he regained his consciousness, he would gladly take them. His only hope for God

was to give him a chance to rectify his past mistake.

     Often, we complain when we have to accompany or watch over our parents for years, months, days,

hours or even minutes. But do we realize that our parents keep us company and watch over us for as

long as we (or they)live? From the day we were born to our adulthood, and even when deaths come to

us, they are always at our side.

     Imagine how sad our parents will be when they hear a seemingly innocent word of "no" come out

from our mouths. We can make promises to ourselves that from now on there will be no more complaints

that come out from our mouths when we have to watch over or accompany our parents. No more

complaints come out from our mouths when we feel that our parents have treated us like little children.

There are so many unlucky ones who have neither fathers nor mothers. They long to have the things that

we most complain about, but never have them.

     Actually, it takes only a second to think and light the lamp that will bring us to a place where peace is

dwelling.

1. Which of the following word can be used to describe the writer's friend?

A. Sad              

B. Sorry              

C. Regretful        

D. Pitiful

2. What does the underlined word "rectify" mean in Para. 3?

A. put…right        

B. recite…by heart  

C. realize          

D. recogniz

3. What does the writer want to tell us in the passage?

A. Your parents will keep talking to themselves when they are old.

B. Be good to your parents when you still have the chance.

C. You will regret in your life if you don't show your kindness to your parents.

D. It is not easy to take good care of sick old parents.

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