问题 问答题 简答题

滑坡形成的主要条件有哪些?如何防治滑坡?

答案

参考答案:

1、滑坡要素

1)滑坡体

2)滑动面和滑动带

3)滑坡床

滑坡治理措施:

1)消除和减轻水对滑坡的作用,即排除滑坡地表水,地下水和防止水对坡角掏蚀;

2)增加滑坡的重力平衡条件,即改变滑坡外形,降低滑坡重心和修建阻挡建筑物而增加滑坡抗滑力

阅读理解

He was a single father, raising a 5-year-old boy alone. He worried about his son growing up without a mother to care for him.

One day he went away on business, leaving the child alone. He was worried about the child all the way, not knowing if he had eaten. But his child always told him not to worry. He went home quickly after finishing his work.

When he got home, the child was deep asleep. He was tired out. When he was about to sleep himself, he was surprised to find an overturned bowl of noodles under the quilt. He spanked his sleeping son angrily:"Why are you so naughty, making the quilt dirty? Who will wash it?" It was the first time that he had hit his boy after his wife's death.

"I haven't," the boy explained with tears in his eyes. "This is your supper, Daddy." In order to let his father eat dinner as soon as he got home, the boy cooked two bowls of noodles: one for himself, the other one for his father. He was afraid his father's noodles would get cold, so he placed them under the quilt to keep them hot.

Hearing this, the father hugged his boy tightly without saying a word.

小题1:According to the passage we know the boy only had _________.

A.a grandfather

B.a mother

C.a father

D.a grandmother小题2:The single father was always worried about ______.

A.his work

B. his money

C.his son

D.his quilt小题3:When the father got home , __________________________

A.His son wasn't at home.

B.He was tired out

C.His son was doing his homework

D.He was very happy.小题4:When the father knew the truth, _________.

A.He hit his son

B.He was very upset.

C.He hugged his son tightly.

D.He went outside.

单项选择题