问题 名词解释

水域鱼产力

答案

参考答案:

指自养生物所固定的太阳能再转化到鱼类的生产能力,是水域内在的产鱼潜力,即水体在不投饵、不施肥,依靠天然饵料(初级或次级生产力),通过逐级营养层次的能量转化,可能提供的最大鱼产量。

阅读理解

How to Become Cleverer

Once a boy came to ask a fisherman how to become cleverer, because his mother always called him “foolish boy”.

“That’s easy,” answered the fisherman. “I know one way to make you become cleverer.”

“Really?”

“Of course. It is said a fish head is good for brain. If you eat one, you’ll become cleverer indeed. Pay only three pounds for one fish head.” The boy paid him three pounds and the fisherman cut off a fish head and handed it to him.

A raw fish head is not good—not even for a hungry boy to eat but the boy ate it up in two gulps.

“Do you feel anything?” asked the fisherman.

“Not in my head,” said the boy.

The boy lay on the ground and thought. “One whole fish costs only two pounds. I had paid him three pounds for the fish head. Why couldn’t I have the whole fish for soup, a head for brain and one pound left over?” He jumped up and shouted at the fisherman. “You thief! You are fooling me!” The fisherman laughed, saying, “The fish head works now, you see.”

小题1:The boy ate up the raw fish head only in two gulps, because he __________.

A.enjoy it

B.wanted to taste it

C.took it as a good medicine

D.was a foolish boy小题2:The boy came to the fisherman in order to __________.

A.buy a fish head

B.ask the fisherman a question

C.become cleverer

D.A and C小题3:“Not in my head” means “__________”.

A.The fish head was not in the boy’s head

B.The boy felt nothing came into his head

C.It’s difficult to give an answer right away

D.The boy didn’t feel that he was cleverer小题4:The boy paid three pounds. He should have had __________.

A.a whole fish

B.a fish head and one pound back

C.a whole fish and one pound back

D.a whole fish, a fish head and one pound back小题5:__________ helped the boy become cleverer.

A.A good meal

B.The raw fish head

C.Nothing

D.What had happened

单项选择题