题目内容

【题目】下列关于人口的叙述,错误的是(  )

A.人口增加可以提供更多的劳动力,因此不必限制人口的数量

B.为了满足增加人口所需的粮食,乱垦滥伐会加重水土流失

C.人口自然增长率较高的国家一般都是发展中国家

D.目前人口最多的大洲是亚洲

【答案】A

【解析】

地球上的自然资源是有限的,人类在地球上的生存空间同样是有限的。世界人口的急剧增长,社会经济的迅速发展,给资源和环境造成了空前的压力,也给人类的生存和发展带来了一系列的问题。人口的自然增长主要是由出生率和死亡率决定的。人口自然增长率与经济发展水平有密切联系。近几十年来,随着生活和医疗水平的提高,婴儿死亡率逐渐降低,人的寿命不断延长。这样就促使世界人口迅速增长。一般来说,经济发展水平高的国家,人口的自然增长较慢;经济发展水平低的国家,人口的自然增长较快。亚洲、非洲和拉丁美洲的一些国家,人口增长过多过快,给社会经济发展造成很大压力,使居民的就业、居住、教育、医疗等问题难以解决,还有一部分国家则长期处于贫困状态。目前人口最多的大洲是亚洲。在欧洲的一些国家,比如意大利、德国和瑞典,近些年来人口一直处于负增长状态,已引起劳动力短缺、人口老龄化等问题。故选:A。

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【题目】 I saw Tom Sawyer on the way to the town. When he saw me he looked frightened. “Huck! Why have you come back to scare me? I never hurt you,” he said. “I haven 't come back. Tom. I've never been away.”

“Aren't you a ghost?”

“No, it was a trick.” I said.

Then I told him that I wanted to rescue(营救) Jim—a slave(奴隶).

“I'll help you,” Tom replied excitedly. He loved an adventure more than anything else in the world.

When we got back to the farm, Tom said that he was Sid, Tom's younger brother. Aunt Sally was surprised to see him but was happy to have his two nephews(侄子).

That night, Tom and I went out to look for Jim. There were lots of huts in the garden. One of the huts was locked. So we guessed Jim was locked in the hut. We dug a tunnel under the wall of the hut that night. Finally, we succeeded. Jim was very surprised to see us.

“Hello, Jim!” Tom said. “But we aren't ready to do it yet, you'll have to wait a couple of days.” “Don't worry! you'll soon be free!”

Then we came back and talked about a plan to get away.

“I'm going to write a letter to Uncle Silas,” Tom said.” “Of course I won't sign it. It'll be anonymous(匿名的). I’m going to warn him that somebody's planning to steal the runaway slave .”I didn't understand why we had to look for trouble but I didn't say anything. “Well, Huck, if Uncle Silas knows, he'll try to stop the thieves,” says Tom.

So Tom wrote the letter and I put it under the front door. Uncle Silas found it in the morning. After reading it, he went out at once. At night, we successfully rescued Jim. We are very happy because Jim is a free man now. Though Tom got a bullet(子弹)in my leg, it was a great adventure.

1Who likes a great adventure best?

A. JimB. Uncle SilasC. HuckD. Tom Sawyer

2Why does Tom look frightened when he sees Huck on the way?

A. Because he thinks Huck is a bad man.

B. Because Huck is really a ghost.

C. Because he thinks Huck has died in his father's cabin.

D. Because he thinks Huck will tell Aunt Sally about everything.

3What’s Tom’s purpose of writing a letter?

A. In order to let Uncle Silas know his rescue methods.

B. In order to make the adventure more exciting.

C. In order to ask Aunt Sally to set Jim free.

D. In order to get Uncle Silas to rescue Tom.

4What theme does the passage show?

A. Rules and order.B. Education and social.

C. Freedom and slaveryD. Man and nature

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