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Copyright ? jiaoyu.com Inc. All Rights Reserved. 17教育网站 版权所有 备案号：> 【答案带解析】完形填空 Throughout history man has had to a...
完形填空Throughout history man has had to accept the fact that all living things must die. But people now live longer than they_________. Yet, all living things still show the__________of aging, which will eventually___________death.Aging is not a disease, but as a person passes maturity (成熟期), the cells of the body and the__________they form do not function as well as they____________in childhood and teenage years. The body provides less__________against disease and is more_________to have an accident.A number of related causes may___________to aging. Some cells of the body have a fairly long life, but they are not____________when they die. As a person ages,
of brain cells and muscle cells decreases. ________
body cells die and are replaced by new cells. In an aging person the________ cells may not be as workable or as capable
growth as those of a young person.Another ________ in aging may be changes within the cells________ . Some of the protein(蛋白质) chemicals in cells are known ________ with age and become less elastic (有弹性). This is why the skin of old people wrinkles（起皱纹）and ________ . This is also the reason why old people ________ in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and
________ information that the cells need. Aging may affect this
and change the information carrying molecules(分子) so that they do not transmit the information as well.1.A. would
B. be used to
C. used to
D. used2.A. function
D. sign3.A. lead in
B. give in
C. run into
D. result in4.A. hands
D. organs5.A. do
B. has done
D. had done6.A. energy
B. protection
C. prevention
D. power7.A. likely
B. probable
C. possible
D. alike8.A. attend
D. devote9.A. replaced
B. rebuilt
C. recovered
D. rearranged10.A. a number
B. the amount
C. the number
D. a great deal11.A. The others
C. Another
D. Other12.A. old
D. other13.A. to
D. in14.A. factor
D. element15.A. for themselves
B. of themselves
C. themselves
D. on their own16.A. change
B. to have changed
C. to change
D. to be changed17.A. becomes loose
B. is become loosely
C. became loosely
D. is becoming loose18.A. increase
C. lengthen
D. decrease19.A. pass away
B. pass by
C. pass off
D. pass on20.A. improvement
B. possess
C. approach
D. process&#xa0;
试题分析：人都会变老这是自然规律，本文通篇叙述了人的衰老的过程，原因及具体表现。
...
考点分析：
考点1：科普环保类
一、完型填空题的命题特点&
& & &完型填空题是一种综合性比较强的测试题，它把单项填空和阅读理解等题型融为一体，它不仅考查学生对词汇、词组、语法、句型和常识逻辑等语言基础知识的掌握情况和正确使用语法知识的能力，而且也考查学生的理解能力、推理能力、以及情景语感等方面综合理解和运用语言的能力。完型填空题通常有两种题型：一种是选择填空题，即四选一；另一种是短文填空题。其中，以第一种较为普遍。&
二、完型填空的命题趋势 & &&
1、体裁、题材多样，考察学生涉猎各种信息的能力&
& & 体裁有记叙文、说明文等；题材涉及到趣味故事、幽默小品、科普知识、日常生活、人物小记、社会热点话题等等。短文一般文章短小，情节连贯，层次分明，线索清楚。目的是考查学生是否有阅读各种体裁、题材文章的能力以及获取各种新息的能力。 &
2、侧重整体理解、考查学生快速阅读理解能力。
& &解完型填空题需要学生具备视读、跳读、查读、猜词等各种快速阅读技巧。因为解题时间有限，在短短的时间内，要完成全文和选项的阅读，还要进行正确判断、推理、核查等工作。可见阅读速度非常重要。 & &&
3、侧重基础知识，考查学生语言知识的能力。
& & & 完型填空以文入手，结合文章的内容考查学生的基础知识，主要是词语搭配、近义词辨 异、辨析句子结构、掌握语法规则的能力。 &
4、上下文对照，考查学生捕捉关键词的能力。
& & & 解完型填空题时，单独看一句话是找不到正确答案的，需要阅读下句或者若干句才能明白。所谓上下对照，即在上文和下文中找到与正确答案相同的关键词。因此，在做题时要边读边在大脑中储存上下文信息的能力，捕捉关键词。 &
5、设置语境，考查学生的分析推理能力。
& & &旨在考查学生在选项都符合语法及句子结构的情况下能否利用前后语境去推断出正确答案。 & &
6、结合生活，考查学生利用常识题的能力。
& & &目的考查学生的生活常识，看看学生是否善于观察生活，积累生活常识，能否利用常识去做恰当的选择。 & &&
7、关注连词，考查学生对行文逻辑、句子关联的理解能力。 & & 此项用来考查学生在缺少连词的情况想，通过阅读能否理解句子的与句子的关系，是否了解行文逻辑的要求，能否掌握表示因果、转折、并列、条件、让步等的连词的用法。&
三、完型填空题的解题步骤： & & &
1、通读全文，了解大意 & &
& & & 越过空挡，通读全文，理顺题意，找出信息词，建立语言的整体感。这是做好完型 填空题的关键。因为完型填空题的特点是着眼于整体理解。 & &&
2、细读首尾，推测意图 &&
& & &文章的首句是全文的“窗口”，尾句是文章的总结、结论或点睛之笔。这样，通过阅 读首句和尾句，就可以了解背景知识，对于空格位置的词语进行大胆分析和判断，以便揣测作者的意图，理顺思路，为后面的答题做好铺垫。 & &&
3、综合考虑，瞻前顾后 &
& & & 在通读全文的基础上，根据全文大意，展开逻辑思维，瞻前顾后，分析这一空格处在 句中的地位，前后的关系和它所起的作用，认真观察选项，仔细推敲，确定最佳答案。&
初中各年级课件教案习题汇总
语文数学英语物理化学
4、复读全文，验证答案 &做完题目以后，要立足整体，再次通读全文，从语法入手，检查一下句子的时态、语法、主谓一致、代词的性、数、格以及词语的搭配等是否正确。若有疑问，必须根据文章的中心思想，从意义、语法的角度来仔细权衡，加以改正，弥补疏漏。
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难度：中等
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