Suppose we built a robot to explore the planet Mars. We provide the robot with seeing detectors(探測(cè)器) to keep it away from danger. It is powered entirely by the sun. Should we program the robot to be equally active at all times? No, the robot would be using up energy at a time when it was not receiving any. So we would probably program it to stop its activity at night and to wake up at dawn the next morning.

According to evolutionary(進(jìn)化的) theory of sleep, evolution equipped us with a regular pattern of sleeping and waking for the same reason. The theory does not deny that sleep provides some important restorative functions. It merely says that evolution has programmed us to perform those functions at a time when activity would be inefficient and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into; it does not protect us from trouble that comes looking for us. So we sleep well when we are in a familiar, safe place, but we sleep lightly, if at all, when we fear that bears will nose into the tent.

The evolutionary theory explain the differences in sleep among creatures. Why do cats, for instance, sleep so much, while horses sleep so little? Surely cats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value. Moreover, they cannot afford to sleep too long or too deeply, because their survival depends on their ability to run away from attackers.

1. The author uses the example of the robot in space exploration to tell us _______.

A. the differences between robots and men

B. the reason why men need to sleep

C. about the need for robots to save power

D. about the danger of men working at night

2. Evolution has programmed man to sleep at night chiefly to help him ______.

A. keep up a regular pattern of life

B. prevent trouble that comes looking for him

C. avoid danger and inefficient labor  

D. restore his bodily functions

3. Which of the following is the main idea of the passage?

A. Evolution has equipped all creatures with a regular pattern of sleeping and waking.

B. The study of sleep is an important art of the evolutionary theory.

C. Sleeping patterns must be taken into consideration in the designing of robots.

D. The sleeping pattern of a living creature is determined by the food it eats.

1--3     BCA  


解析:

本文介紹了有關(guān)睡覺(jué)進(jìn)化論方面的知識(shí)。

1. B。推斷題。根據(jù)文章第2段第1句evolution equipped us with a regular pattern of sleeping and waking for the same reason可推知此題答案為B。

2. C。推斷題。根據(jù)文章第2段第3句when activity would be inefficient and possibly dangerous可推知此題答案為C。

3. A。推斷題。根據(jù)文章第2段第1句和第3段第1句可推知此題答案為 A。

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科目：高中英語(yǔ) 來(lái)源：選修導(dǎo)學(xué)英語(yǔ)譯林7 譯林版 題型：054

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　　Now that the Spring Festival is over, I only have school to look forward to．It’s 　　1　　 funny, I find myself looking forward more and more to school．

　　As usual, 　　2　　 can get little work 　　3　　 during the winter vacation．For one thing, the Spring Festival is always a big distraction(使人快樂(lè)之事), and for days before and after 　　4　　 can get any work done．It’s all right if you really have a nice time, as I used to．But now I find myself 　　5　　 it less and less．I 　　6　　 enjoying fireworks and firecrackers years ago．The firecrackers especially get on my nerve．I really think we should stop making them, as every year many children have their eyes hurt or even 　　7　　．Even worse, sometimes fires 　　8　　 out and whole buildings get 　　9　　 down．Still I suppose we’ll continue to make them 　　10　　 there is a market for them．

　　And the 　　11　　! People spend days buying．The result－too much and too rich which does nobody any good：chicken, duck, fish, meat and so on．What’s 　　12　　, they become 　　13　　, too, too much of a good thing, as we say, and this visiting business too．It’s all right for a few really good friends 　　14　　 together and chat over some tea or drinks．But mere acquaintance and the usually not too neighborly neighbors dropping 　　15　　 to say hello, but I find them a pain in the neck(討厭的家伙)．Usually there is nothing to talk about 　　16　　 some meaningless words．

　　Oh yes, I 　　17　　 myself skating on the nearby lake 　　18　　 a few times．The ice is not too good now and getting very 　　19　　．I stopped going before the Spring Festival．But there are people who are 　　20　　 too reckless(不計(jì)后果的)or too ignorant or both, and we hear about people falling through thin ice every year．

(1)
[　　]

A．

a little

B．

not

C．

really

D．

little

(2)
[　　]

A．

I

B．

you

C．

he

D．

she

(3)
[　　]

A．

performing

B．

finished

C．

doing

D．

done

(4)
[　　]

A．

anyone

B．

some

C．

nobody

D．

somebody

(5)
[　　]

A．

enjoying

B．

disliking

C．

enjoyed

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experiencing

(6)
[　　]

A．

started

B．

likes

C．

stopped

D．

went on

(7)
[　　]

A．

blind

B．

blinded

C．

blindness

D．

blinding

(8)
[　　]

A．

broken

B．

break

C．

start

D．

take place

(9)
[　　]

A．

burned

B．

burning

C．

built up

D．

lied

(10)
[　　]

A．

as long as

B．

as soon as

C．

once

D．

so

(11)
[　　]

A．

business

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amusement

C．

toy

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food

(12)
[　　]

A．

less

B．

the more

C．

more

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much

(13)
[　　]

A．

taste

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tasteless

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tasty

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tasted

(14)
[　　]

A．

to get

B．

coming

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to talk

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to speak

(15)
[　　]

A．

in

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on

C．

of

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for

(16)
[　　]

A．

besides

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except that

C．

but

D．

except for

(17)
[　　]

A．

do like

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did enjoy

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do enjoy

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did like

(18)
[　　]

A．

much

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well

C．

very

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quite

(19)
[　　]

A．

thin

B．

thick

C．

thinner

D．

small

(20)
[　　]

A．

nor

B．

or

C．

neither

D．

either

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