问题 单项选择题

某脑外伤病人不能说话,但能听懂别人讲话,能看书看报。此病人受损的是大脑皮层的()

A.运动语言中枢

B.听觉语言中枢

C.视觉语言中枢

D.感觉语言中枢

答案

参考答案:A

解析:运动性语言中枢受损,能看能听能读就是不能说,故A对;听觉性语言中枢受损能说能看能写但就是听不懂;视觉性语言中枢受损能说能写能听就是看不懂文字;故B、C、D错。考点:本题考查大脑的高级功能的相关知识,意在考查考生理解所学知识的要点,把握知识间的内在联系的能力。

阅读理解

阅读理解。

     Vint Cerf, who helped to build the Internet while working as a researcher in America, said that television

was approaching its "iPod moment"

      In the same way that people now download their favourite music onto their iPod, he said that viewers

would soon be downloading most of favourite programmes onto their computers."85 percent of all video we

watch is pre-recorded, so you can set your system to download it all the time," said Mr. Cerf, who is now the

vice-president of the Google, the world's largest search engine.

      "You are still going to need live television for certain things-like news, sporting events and emergencies-but

increasingly it is going to be almost like the iPod, where you download content to look at later." But some

critics, including some internet service providers, have warned that the Internet will collapse under the strain of millions of people downloading programmes at the same time.

     Broadband companies claim that the service will cause "traffic jams", which will cost millions of pounds to

sort out.

     But Mr. Cerf dismissed the warnings as "scare tactics", saying that critics had predicted 20 years ago that

the net would collapse when people all around the world started to use it.

     "In the intervening 30ears it's increased a million times… We're far from exhausting the capacity," he said.

"It's an understandable worry when they see huge amounts of information being moved around online."

     "I want more Internet," he said. "I want every one of the six billion people on the planet to be able to connect to the Internet."

1. What can we learn from the passage about TV in future?

A. The TV will be booming.

B. The traditional television is to die.

C. We are still going to need live television.

D. The Internet will collapse.

2. Which of the following is NOT mentioned in this passage?

A. Mr. Cerf wants everyone on the earth to download their favourite music onto their iPod.

B. If people download the programmes the Internet will collapse.

C. Not all Internet service providers are in for TV's dying.

D. Half of all video we watch is pre-recorded.

3. We know that Mr. Cerf is ____.

A. an engineer

B. a scientist

C. a critic

D. vice-president of the world's largest search engine 

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