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14.Humans are mammals(哺乳动物).Most mammals are born able to do many things.
Some can walk within a few minutes of being born.They have to be able to run away if(16)Bis near.But human babies are born(17)D.They need the care of adults to live.
In the first month of life,babies cannot smile or sit up.They cannot even hold up their own heads(18)Csome help from grown-ups.
In the next few months,babies grow a lot.They learn to roll over,support their heads,and  19Asit up while being held.
Babies also have to learn to use their(20)D.It takes months for them to learn to reach for objects.At around six months old many babies can(21)Ban object from one hand to another.
Babbling is(22)Ba human baby learns to speak.Babies all seem to make similar
sounds by babbling.They try to imitate (模仿) the sounds they hear from adults.It will take about nine months(23)Aa baby can say real words.
Somewhere around a baby's first birthday he or she may stand or walk with help.Soon
the baby will(24)Caround on his or her own!
The first year of a baby's life is a time of growing and(25)D.Growing sure takes a lot
of work!
16.A.foodB.dangerC.wasteD.peace
17.A.carelessB.harmlessC.hopelessD.helpless
18.A.ofB.forC.withoutD.by
19.A.evenB.neverC.everD.still
20.A.legsB.headsC.eyesD.hands
21.A.keepB.moveC.holdD.make
22.A.whyB.howC.whichD.where
23.A.beforeBsinceC.afterD.while
24.A.lookB.showC.runD.sit
20.A.speakingB.smilingC.cryingD.learning.

分析 文章大意:本文介绍了有的哺乳动作生下来几分钟就可以走路,而人类的新生儿生下来却不能,人一生下来,甚至不能微笑或坐立,也抬不起头,在人类出生的第一年,这些动作是一步一步逐渐学会的,对人类来说,成长要花很多努力.

解答 16.B 考查名词辨析.A表示食物; B表示危险;C表示浪费;D表示和平.由They have to be able to run away可推知逃跑是在遇到危险时的动作,选B,表示如果附近有危险时.
17.D 考查形容词辨析.A表示粗心 的;B表示无害的;C表示无望的;D表示无能的,无用的.由They need the care of adults to live可知此处表示一个人类的宝宝生下来却是无能的(此处的无能指的是不能自己走和跑),选D.
18.C 考查介词辨析.A表示…的;B表示对于,为了;C表示没有;D表示通过.由But human babies are born helpless可知此处表示没有大人的帮助,他们甚至不能抬起头,选C.
19.A 考查副词辨析.A表示甚至;B表示从不;C表示曾经;D表示仍然.结合语境可知此处表示他们学习翻身,支撑起自己的头,甚至是在支撑下坐立起来,选A.
20.D 考查名词辨析.A表示腿;B表示头;C表示眼睛;D表示手.由At around six months old many babies can(21)an object from one hand to another可知此处表示婴儿也得学习使用他们的手,选D.
21.B 考查动词辨析.A表示保持;B表示移动;C表示抓住;D表示使.由It takes months for them to learn to reach for objects可推测此处表示大约六个月时,许多婴儿可以将一个物体从一个手移到另一个手,选B.
22.B 考查表语从句.分析句子可知空格处引导表语从句作is的表语,babbling指的是人类的婴儿学习说话的方式,要用how来引导,选B.
23.A 考查连词辨析.A表示之前;B表示自从;C表示之后;D表示当…时.由Babies all seem to make similar sounds by babbling.They try to imitate (模仿) the sounds they hear from adults可推测此处表示在婴儿能够真正地说出话前要花上九个月的时间,选A.
24.C 考查动词辨析.A表示看; B表示展示;C表示跑;D表示坐.由Somewhere around a baby's first birthday he or she may stand or walk with help可推测此处表示的是不久后这个婴儿会自己跑了,因为此句前描述的动作是站立和行走,之后的动作应该是跑,所以选C.
25.D 考查动词辨析.A表示说;B表示微笑;C表示哭;D表示学习.由上文提到的They learn to roll over,support their heads…和Babies also have to learn to use their hands可知此处表示的是婴儿时期的第一年是成长和学习的一年,选D.

点评 解答完形填空题需要快速阅读全文,了解文章大意,再带着选项去读,边读边做,注意联系上下文.

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