问题 问答题

阅读材料,分析后回答:

生物多样性与人类的生活和生产有着密切的关系。许多野生动植物可以用作药材,如植物中的人参、刺五加、三七,动物中的蝎和蜈蚣等。许多野生动植物还能提供大量的工业原料,例如,从田菁(左下图)的种子中提取出的田菁胶,在造纸、纺织、石油和冶炼等工业中有着重要的用途。某些野生植物可以为人类提供食品,例如,猕猴桃 (右下图)的肉质细嫩,酸甜可口,维生素含量比柑橘高得多。野生动植物还具有重要的科学研究价值。在基因工程迅速发展的今天,这一点显得更加重要。例如,水稻草丛矮缩病是一种危害水稻生长发育的病毒性疾病,很难防治。后来,科学家发现了一个野生水稻种群,这个种群对草丛矮缩病具有比较强的抗性,从而为培育抗草丛矮缩病的水稻新品种找到了必要的基因。

(1)通过以上资料,说明了生物多样性具有什么价值?

(2)生物多样性具有多方面的价值,上面的资料介绍得不一定很全面,你还能作些补充吗?

答案

(1)药用价值、食用价值、科学研究价值,还是重要的工业原料

(2)如美学价值、生态功能及潜在的使用价值

阅读理解

Henry was born in a small town. His father has a factory. One night the man drank too much and drove his car home. On his way he drove fast and suddenly his car fell into the river and he died in the accident. The old man left his son much money and the factory. But the man spent all the money in nearly three years and at last he had to sell the factory for food and clothes. Another three years passed and he wanted to find work but he couldn’t do anything. Nobody would use a man like him.

The young man thought and thought. At last he found a way. He began to beg(乞讨) from door to door. Most people in the town knew him well and few of them had a pity(同情) on him. So he was often hungry. He had to leave the town and came to Toronto. In the city he began to pretend(假装) that he couldn’t speak. So he could beg some money and food.

One day Henry was begging by the station when he met Mr. Cook, one of his father’s friends. The man asked, “How long have you been dumb(哑的), Henry?”

The sudden question made the young man burst out(脱口而出), “since I was born!”

小题1:Henry was born _______.

A.in a poor family

B.in a rich family

C.in a worker’s family

D.in a big factory小题2:The car fell into the river because ________.

A.the old man couldn’t drive at all

B.it was very dark that night

C.something was wrong with the road

D.the old man was drunk that night小题3:Henry couldn’t find any work in the town because _______.

A.he could do nothing at all

B.he liked begging better than work

C.he was the richest man there

D.he was too young to be a worker小题4: _____, so he had to leave for Toronto.

A.Henry hoped to beg in the city

B.The people in the town were poor

C.Most people in the town knew Henry

D.Henry couldn’t beg enough food for himself小题5:Which of the following is right?

A.Henry was dumb since he was born

B.Mr. Cook didn’t know Henry

C.When Henry saw Mr. Cook, he forgot he was “dumb.”

D.Mr. Cook wanted to take Henry to the police station

选择题