英语完形填空(求解释选择或像老师一样讲解原文)

英语完形填空(求解释选择或像老师一样讲解原文)

题目
英语完形填空(求解释选择或像老师一样讲解原文)
5  Big schoolbags have been a serious problem for students for a long time.Maybe your schoolbag is too 41 to carry,and it troubles you a lot 42 you want to find a book out to read,Now an e-textbook will 43 you.It is said that e-textbooks are going to be 44 in Chinese middle schools.An e-textbook,in fact,is a small 45 for students.It is much 46 than a usual schoolbag and easy to carry.Though it is as small as a book,it can 47 all the materials (材料) for study.The students can read the text page by page on the 48 ,take notes with the pointer (屏写笔).Or even " 49 "their homework to their teachers by sending e-mails.All they have to do is to press a button.Some people say e-textbooks are good.but some say they may be 50 for the students' eyes.What do you think of it?
( )41.A.light B.heavy C.useful D.comfortable 
 ( )42.A.till B.after C.before D.when 
 ( )43.A.trouble B.prevent C.help D.understand 
 ( )44.A.used B.kept C.invented D.lent 
 ( )45.A.TV B.radio C.pen D.computer  
( )46.A.heavier B.lighter C.cheaper D.brighter  
( )47.A.hold B.build C.discover D.practise  
( )48.A.blackboard B.desk C.screen D.card  
( )49.A.find out B.hand in C.get back D.give back 
 ( )50.A.helpful B.famous C.good D.Bad
答案
答案:41.B.也许你的书包重得背不动.too…to 太……而不能42.D. 当你要找一本书读,它会给你带来许多麻烦.when引导从句43.C. 一本电子书会给你帮助44.A. 据说电子书将被中国的中学所使用.It is said 据说;be used 被...
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