閱讀理解

　　What are you doing right now?Yes, you are reading this page．That also means you’re moving your eyes．You’re thinking．You’re breathing．You’re listening．Possibly you’re shifting(變換)positions．You’re also feeling things－this book, your chair, emotions．What lets you do all these things at the same time?Your brain．

　　Your brain is the control center of your body and mind．Without your brain you can’t do anything．Your brain has more than 100 billion nerve(神經(jīng))cells．Each nerve cell makes from 1,000 to 10,000 connections with other nerve cells．The nerve cells send impulses back and forth in your brain and to and from every part of your body．After you reach the age of 20, though, your brain cells start to die．This is common．However, if you suffer an illness, or injury, even more nerve cells die in your brain．When a nerve cell dies, the thousands of connections it made with other nerve cells are lost．

　　Until recently, scientists believed that the brain did not replace its dead cells．New studies, however, prove not．Scientists have found new nerve cells in a part of the brain called the hippocampus(海馬區(qū))．The hippocampus helps the brain form memories from new experiences．

　　The discovery of these new nerve cells is not a cure for anything yet．It gives hope, however, of a cure for brain damage from such things as epilepsy(癲癇病), Lou Gehrig’s disease, car accidents, and strokes．Someday scientists might be able to use the new cells to replace damaged brain cells．Such a cure, however, may take about ten years to develop．So at the same time, use your head-protect it!

(1)

Nerve cells in the brain ________．

[　　]

A．

send massages to every part of the body

B．

make connections only to other cells in the brain

C．

can cure Lou Gehrig’s disease

D．

are a person’s memory

(2)

The last sentence of the passage suggests that people ________．

[　　]

A．

should use their head by carefully thinking through situations

B．

should be careful not to injure their brains

C．

have a skull(頭蓋骨)that provides all the protection needed by the brain

D．

would see a quick cure for brain disease

(3)

The author explains what the hippocampus is by ________．

[　　]

A．

telling its history

B．

comparing it to other parts of the brain

C．

telling how it got its name

D．

explaining what it does

(4)

Nerve impulses are ________．

[　　]

A．

cures

B．

disorders

C．

memories

D．

messages

答案：1．A;2．B;3．D;4．D;
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：2012年普通高等學(xué)校招生全國(guó)統(tǒng)一考試重慶卷英語(yǔ) 題型：050

閱讀理解

　　To take the apple as a forbidden fruit is the most unlikely strory the Christians(基督教徒)ever cooked up．For them, the forbidden fruit from Eden is evil(邪惡的)．So when Colu brought the tomato back from South America, a land mistakenly considered to be eden, ever jumped to be the obvious conclusion．Wrongly taken as the apple of Eden, the tomato was shut o the door of Europeans．

　　What made it particularly terrifying was its similarity to the mandrake, a plant that was the to have come from Hell(地獄)．What earned the plant its awful reputation was its roots w looked like a dried-up human body occupied by evil spirits．Tough the tomato and the man were quite different except that both had bright red or yellow fruit, the general population consio them one and the same, to terrible to touch．

　　Cautious Europeans long ignored the tomato, and until the early 1700s most of the We people continued to drag their feet．In the 1880s, the daughter of a well-known plant expert that the most interestinig part of an afternoon tea at her father's house had been the “introduction this wonderful new fruit-or is it a vegetable?”As late as the twentieth century some writers classed tomatoes with mandrakes as an”evil fruit”．

　　But in the end tomatoes carried the day．The hero of the tomato was an American named R Johnson, and when he was publicly going to eat the tomato in 1820, people journeyed for hun of miles to watch him drop dead．”Wha are you afraid of?”he shouted．”I'll show you fools these things are good to eat!” Then he bit into the tomato．Some people fainted．But he sur and, according to a local story, set up a tomato-canning factory．

(1)

The tomato was shut out of the door of early Europeans mainly because ________．

[　　]

A．

it made Christive evil

B．

it was the apple of Eden

C．

it came from a forbidden land

D．

it was religiously unacceptable

(2)

What can we infer the underlined part in Paragraph 3?

[　　]

A．

The process of ignoring the tomato slowed down

B．

There was little pregress in the study of the tomato

C．

The tomato was still refused in most western countries

D．

Most western people continued to get rid of the tomato

(3)

What is the main reason for Robert Johnson to eat the tomato Publicly?

[　　]

A．

To manke imself a hero

B．

To remove people's fear of the tomaoto

C．

To speed up the popularityt of the tomato

D．

To persuade people to buy products fo\rom his factory

(4)

What is the main purpose of the passage?

[　　]

A．

To challenge people's fixed concept of the tomato

B．

To give an explanation to people's dislike of the tomato

C．

To present the change of people's attitudes to the tomato

D．

To show the process of freeing the tomato from religious influence

查看答案和解析>>

同步練習(xí)冊(cè)答案