问题 实验题

下表显示了哺乳动物和鸟类的生存面临威胁、濒临灭绝的主要原因百分比。

根据下列数据回答问题:

原  因哺乳动物鸟 类
偷  猎31%20%
栖息地的丧失32%60%
外来物种影响17%12%
其他原因20%8%
 

(1)上述数据说明造成生物多样性面临威胁的主要原因有哪些?(2分)

(2) 我们应该采取哪些措施保护生物的多样性?(至少写出两点)(2分)

答案

(1)、偷猎,栖息地的丧失

(2)禁止对野生动物的滥捕滥杀;保护动物的栖息环境,建立自然保护区;建立濒危物种繁育中心等。(至少写出两点。不必拘泥于答案,只要学生言之有理,能从不同角度即可给分)

生物多样性面临危机的原因是人口迅猛增加、生存环境的破坏、环境的污染与破坏、外来物种入侵等。保护生物多样性有利于全球环境的保护和生物资源的持续利用,对人类的生存和发展具有极为重要的意义;保护生物多样性的具体办法有依法合理开发利用自然资源,严禁砍伐猎取濒危物种和受保护物种;建设自然保护区保护生物多样性;采取措施对一些物种进行特殊的保护和管理,如迁地保护;用人工养殖、栽培和人工繁殖的方法抢救濒危物种等。

填空题
阅读理解

Many years ago, when I was first out of school and working in Danver, I was driving to my parents’ home in Messouri for Christmas. I stopped at a gas station about 50 miles from Okiahoma City, where I was planning to stop and visit a friend. While I was standing in line at the cash register(收款台), I said hello to an old couple who were also paying for gas. I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend’s. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card.

I wrote him and his wife a thank-you note for helping me. Soon after, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.

Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I’d left the lights on all day, and the battery(电池) was dead. Then I noticed that the Friendly Ford shop(a shop selling cars)was right next door. I walked over and found two salesmen in the showroom.

“Just how friendly is Friendly Ford?” I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment; so when I got home, I wrote them a note to say thanks, I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank-you, and it meant a lot, he said.

“Thank you”-- two powerful words. They’re easy to say and mean so much.

57. The author planned to stop at Oklahoma City___________.

A. to visit a friend              B. to see his parents

C. to pay at the cash register       D. to have more gas for his car

58. The words “took off” underlined in Paragraph 2 mean “___________ ”

A. turned off       B.moved off    C. put up     D. set up

59. What happened when the author found smoke coming out of his car?

A. He had it pulled back to the gas station.

B.The couples sent him a business card.

C. The couple offered to help him.

D. He called his friend for help.

60.By telling his own experiences, the author tries to show__________.

A. how to write a thank-you letter     B. how to deal with car problems

C. the kindheartedness of old people    D. the importance of expressing thanks