2.The baby monkey is much more developed at birth than the human baby.Almost from the moment it is born,the baby monkey can move around and hold tightly to its mother.During the first few days of its life the baby will approach and hold onto almost any large,warm,and soft object in its environment,particularly if that object also gives it milk.After a week or so,however,the baby monkey begins to avoid newcomers and focuses its attentions on"mother"-the real mother or the mother-substitute (母親替代物).
During the first two weeks of its life warmth is perhaps the most important psychological thing that a monkey mother has to give to its baby.The Harlows,a couple who are both psychologists,discovered this fact by offering baby monkeys a choice of two types of mother-substitutes-one covered with cloth and one made of bare wire.If the two artificial mothers were both the same temperature,the little monkeys always preferred the cloth mother.However,if the wire model was heated,while the cloth model was cool,for the first two weeks after birth the baby monkeys picked the warm wire mother-substitutes as their favorites.Thereafter they switched and spent most of their time on the more comfortable cloth mother.
Why is cloth preferable to bare wire?Something that the Harlows called contact (接觸) comfort seems to be the answer,and a most powerful influence it is.Baby monkeys spend much of their time rubbing against their mothers'skins,putting themselves in as close contact with the parent as they can.Whenever the young animal is frightened,disturbed,or annoyed,it typically rushes to its mother and rubs itself against her body.Wire doesn't"rub"as well as does soft wire cloth.Prolonged (長(zhǎng)時(shí)間的)"contact comfort"with a cloth mother appears to give the babies confidence and is much more rewarding to them than is either warmth or milk.
According to the Harlows,the basic quality of a baby's love for its mother is trust.If the baby is put into an unfamiliar playroom without its mother,the baby ignores the toys no matter how interesting they might be.It screams in terror and curls up into a furry little ball.If its cloth mother is now introduced into the playroom,the baby rushes to it and holds onto it for dear life.After a few minutes of contact comfort,it obviously begins to feel more secure.It then climbs down from the mother-substitute and begins to explore the toys,but often rushes back for a deep embrace (擁抱) as if to make sure that its mother is still there and that all is well.Bit by bit its fears of the new environment are gone and it spends more and more time playing with the toys and less and less time holding on to its"mother."

50.Psychologically,what does the baby monkey desire most during the first two weeks of its life?A
A.Warmth  
B.Milk 
C.Contact      
D.Trust
51.After the first two weeks of their life,baby moneys prefer the cloth mother to the wire mother because the former isD.
A.larger in size   
B.closer to them
C.less frightening and less disturbing 
D.more comfortable to rub against
52.What does the baby monkey probably gain from prolonged"contact comfort"?C
A.Attention   
B.Softness 
C.Confidence  
D.Interest
53.It can be inferred that when the baby monkey feels secure,D.
A.it frequently rushes back for a deep embrace when exploring the toys
B.it spends more time screaming to get rewards
C.it is less attracted to the toys though they are interesting
D.it cares less about whether its mother is still around
54.The main purpose of the passage is toB.
A.give the reasons for the experiment  
B.present the findings of the experiment
C.introduce the method of the experiment  
D.describe the process of the experiment.

分析 本文是一篇實(shí)驗(yàn)報(bào)告.作者通過(guò)一系列的舉例旨在告訴讀者實(shí)驗(yàn)中幼猴對(duì)媽媽的依賴.

解答 50.答案:A.細(xì)節(jié)理解題.根據(jù)第二段中的第一句"During the first two weeks of its life warmth is perhaps the most important psychological(心理的)thing…"可知,出生后的前兩周里,幼猴心理上最需要的是溫暖.
51.答案:D.細(xì)節(jié)理解題.第三段中的第一句"Why is cloth preferable to bare wire?"是本段的主題句.整個(gè)段落解釋了"為什么出生兩周后的猴子更喜歡布媽媽".根據(jù)第三段的第二句"Something that the Harlows called contact(接觸)comfort seems to be the answer…"可知,布媽媽接觸起來(lái)更舒適.
52.答案:C.細(xì)節(jié)理解題.根據(jù)第三段中的最后一句"Prolonged(長(zhǎng)時(shí)間的)‘contact comfort'with a cloth mother appears to give the babies confidence…"可知,長(zhǎng)時(shí)間與布媽媽接觸會(huì)給幼猴信心.
53.答案:D.推理判斷題.根據(jù)最后一段If its cloth mother is now introduced into the playroom,the baby rushes to it and holds onto it for dear life.After a few minutes of contact comfort,it obviously begins to feel more secure.的敘述可知,當(dāng)幼猴看到布媽媽后,它會(huì)覺(jué)得有安全感,從而在行為上會(huì)放松,從而越來(lái)越喜歡玩玩具,而減少與"母親"接觸的時(shí)間.
54.答案:B.主旨大意題.通讀文章可知,本文旨在告訴讀者實(shí)驗(yàn)中關(guān)于幼猴對(duì)媽媽依賴的發(fā)現(xiàn).

點(diǎn)評(píng) 做這類題要熟悉科普類文章的結(jié)構(gòu)特點(diǎn).這類閱讀理解材料一般不給標(biāo)題,導(dǎo)語(yǔ)一般位于整篇文章的首段.背景交待一個(gè)事實(shí)的起因.主體則對(duì)導(dǎo)語(yǔ)概括的事實(shí)進(jìn)行詳細(xì)敘述,這一部分命題往往最多,因此,閱讀時(shí)要把這部分作為重點(diǎn).結(jié)尾往往也是中心思想的概括,并與導(dǎo)語(yǔ)相呼應(yīng).

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