问题 问答题 简答题

艾比湖湿地的作用及重要性是什么?

答案

参考答案:

艾比湖湿地是国内最具代表性的温带干旱区湿地荒漠生态系统,生态区位与地理位置十分重要,是天山北坡地区绿洲与荒漠化共桅演进的中心,在调节气候、维持区域生态平衡方面有着十分重要的作用,目前艾比湖的干缩已引起严重的风沙危害,其危害范围已遍及天山北坡经济带甚至更远的地区,如果再进一步干缩乃至甚本干涸,将遭到严重的生态灾难。

选择题
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My teenage son Karl became withdrawn after his father died. As a single parent, I tried to do my best to talk to him, but the more I tried, the more he pulled away. When his report card arrived during his junior year, it said that he had been absent 95 times from classes and had six failing grades for the year. At this rate he would never graduate. I sent him to the school adviser, and I even begged him. Nothing worked.

One night I felt so powerless that I got down on my knees and pleaded for help. “Please God, I can’t do anything more for my son. I’m at the end of my rope. I’m giving the whole thing up to you.” I was at work when I got a phone call. A man introduced himself as the headmaster. “I want to talk to you about Karl’s absences.” Before he could say another word, I choked up and all my disappointment and sadness over Karl came pouring out into the ears of this stranger. “I love my son but I just don’t know what to do. I’ve tried everything to get Karl to go back to school and nothing has worked. It’s out of my hands.” For a moment there was silence on the other end of the line. The headmaster seriously said, “Thank you for your time,” and hung up.

Karl’s next report card showed a marked improvement in his grades. Finally, he even made the honor roll. In his fourth year, I attended a parent-teacher meeting with Karl. I noticed that his teachers were astonished at the way he had turned himself around. On our way home, he said,  “Mum, remember that call from the headmaster last year?” I nodded. “That was me. I thought I’d play a joke but when I heard what you said, it really hit me how much I was hurting you. That’s when I knew I had to make you proud.”

59. By saying “Karl became withdrawn”, the author means that the boy changed entirely and_____.

A. preferred to stay alone at home            B. lost interest in his studies

C. refused to talk to others                  D. began to dislike his mother

60. There was silence on the other end of the line because            .

A. the speaker was too moved to say anything to the mother

B. the speaker waited for the mother to finish speaking

C. the speaker didn’t want the mother to recognize his voice

D. the speaker was unable to interrupt the mother

61. The sentence “... he even made the honor roll” means that             .

A. he was even on the list to be praised at the parent-teacher meeting

B. he was even on the list of students who made progress in grades

C. he was even on the list of students who had turned themselves around

D. he was even on the list of the best students at school

62. What is the main idea of this passage?

A. Children in single-parent families often have mental problems.

B. Mother’s love plays an important role in teenagers’ life.

C. Being understood by parents is very important to teenagers.

D. School education doesn’t work without full support from parents.