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10.Big schoolbags have been a big problem for students for a long time.Maybe your schoolbag is too (31)Bto carry,and it troubles you a lot(32)C  you want to find out a book to read.Now e-textbooks will (33)B you.
It is said that many Chinese middle schools are going to use e-textbooks.An e-textbook,in fact,is a small (34)C for students.It is much lighter than a usual schoolbag and (35)A to carry.Though it is as (36)Bas a book,it can hold (容纳) everything for study.The students can read the text page by page on the(37)C,take notes (38)A the pointer (屏写笔),or even"hand in"their (39)B to their teachers by sending e-mails.All they have to do is to press a button ( 按开关).
Some people say e-textbooks are good,but some say they may be(40)A  for the students'eyes.What do you think of it?

31.A.expensiveB.heavyC.light
32.A.tillB.afterC.when
33.A.troubleB.helpC.solve
34.A.TVB.radioC.computer
35.A.easyB.difficultC.hard
36.A.smallerB.smallC.harmful
37.A.paperB.keyboardC.screen
38.A.withB.inC.by
39.A.computerB.homeworkC.e-textbooks
40.A.badB.dangerousC.good.

分析 这篇短文主要介绍了为了缓解学生们书包过重的问题,而采用的一种电子教科书.

解答 31-35  BCBCA    36~40  BCABA
31.B考查形容词的辨析.结合题干可知此处是too…to句型,太…而不能.结合句意:或许你的书包太重了背不动,故选B.
32.C考查时间状语从句.结合题干可知此处是when引导的时间状语从句,当…时候.结合句意:或许你的书包太重了背不动,当你找一本书来读时,它给了你很多麻烦.故选C,当…时.
33.B考查动词的辨析.空格前是will,此处应该是动词原形.结合句意:或许你的书包太重了背不动,现在电子教科书会帮助你.故选B,帮助.
34.C考查名词的辨析.联系下文对电子教科书的描述,可知此处指的是,它是一部小型电脑.故选C,电脑.
35.A考查形容词的辨析.联系前半句It is much lighter than a usual schoolbag 它比平常的书包轻得多,可知此处它很容易携带.故选A,容易的.
36.B考查形容词的辨析.结合语境可知此处指的是,尽管它像一本书那样小.As…as一般用于同级对比,后面接形容词或者副词原级,故选B,小的.
37.C考查名词的辨析.结合语境可知此处指的是在电子教科书的屏幕上阅读文本页面.故选C,屏幕.
38.A考查介词的辨析.根据上一句:在电子教科书的屏幕上阅读文本页面,可知此处应该是:用屏写笔做笔记.故选A,用某种工具.
39.B考查名词的辨析.结合句意:甚至用电子邮件把作业交给老师.故选B,作业.
40.A考查形容词的辨析.联系前半句Some people say e-textbooks are good一些人说电子书好,可知此处指的是,但是一些人说他们可能对学生们的眼睛不好.故选A,坏的,不好的.

点评 首先要通读全文,了解大意,紧紧抓住上下文所提供的信息,然后明确词义,词型,词的搭配,并按上下文需要作答,然后读全文,校对答案.

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