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【简答题】

阅读理解。
Once upon a time there was a writer living by the sea. He had a habit of walking along the
beach before he began his work.
One day he was walking along the beach, and he saw someone moving like a dancer. He
smiled and began to walk faster toward the men. As he got closer, he saw that it was a young
man and the young man wasn't dancing. He was bending down to the send, picking something
up and very gently throwing it into the.sea.
As he got closer, the writer called out: 'Good morning! What are you doing?'
The young man stopped, looked up, and said: 'Throwing starfish( 海星) into the sea. '
'Why are you doing that?'
'The sun is up, and the tide( 潮汐)is going out. And if I don't throw them into the sea, they
will die.'
'But, young man, don't you think that there are so long a beach here, and starfish all on the
beach? You can't make difference. '
The young man listened politely then bent down, picked up another starfish, threw it into the
sea and said: 'It made a difference for that one.'
Each of us can make a difference in this world. Everybody is useful. Every small thing you do
will help.
1.At first the writer thought the young man _____.
A. was walking with a dancer
B. was dancing along the beach
C. was swimming in the sea
2. What was the young man actually doing?
A. He was watching the sun going up.
B. He was waiting for the tide to go out.
C. He was throwing the starfish into the sea.
3. What did the young man do after the writer said: 'You can't make a difference'?
A. He was angry.
B. He listened politely without saying anything.
C. He went on doing what he thought was right.
4. The starfish won't _____ if the young man didn't throw them into the sea.
A. die
B. live on
C. jumps
5. What does the story tell us?
A. Walking along the beach is good for health.
B. Don't stop doing good even if it is a small thing.
C. Give up when others ask you to stop.

题目标签:潮汐
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参考答案:
参考解析:
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刷刷题刷刷变学霸
举一反三

【单选题】潮汐中的问题:

A.
潮汐的周日不等是由日、月引潮力合成不同形成的
B.
平均海面是相邻高潮潮高和低潮潮高的平均值
C.
A和B 都对
D.
A和B都错

【单选题】潮汐周日不等的潮汐现象是:

A.
一天有两次涨潮和两次落潮
B.
相邻两次高潮或两次低潮潮高不等
C.
涨落潮时间不相等
D.
A+B+C

【多选题】关于潮汐的周期()

A.
由于太阳的引潮力是主要的,所以潮汐的平均周期为半个太阳日
B.
由于月球的引潮力是主要的,所以潮汐的平均周期为12h25m或24h50m
C.
大潮与小潮的变化周期为朔望月
D.
大潮与小潮的变化周期为半个朔望月

【多选题】潮汐可分为( )。

A.
半日潮
B.
日潮
C.
混合潮
D.
月潮
E.
周潮

【单选题】潮汐周日不等(diurnal inequality of tide)的现象为()。

A.
一天有两次涨潮和两次落潮
B.
相邻两次高潮或两次低潮潮高不等
C.
涨落潮时间不相等
D.
一天有两次高潮或两次低潮的潮高以及相邻的高、低潮的时间间隔不相等