Big schoolbags have been a serious probl
问题：
Big schoolbags have been a serious problem for students for a long time. Maybe your schoolbag is too to carry, and it troubles you a lot you want to find a book out to read. Now an e-textbook will you.
It is said that e-textbooks are going to be in Chinese middle schools. An e-textbook, in fact, is a small for students. It is much than a usual schoolbag and easy to carry. Though it is as small as a book, it can all the materials (材料) for study. The students can read the text page by page on the , take notes with the pointer (屏写笔). Or even “ ” their homework to their teachers by sending emails. All they have to do is to press a button.
Some people say e-textbooks are good, but some say they may be for the students' eyes. What do you think of it?
小题1:A. light B. heavy C. useful
小题2:A. till B. after C. when
小题3:A. trouble B. prevent C. help
小题4:A. used B. kept C. invented
小题5:A. computer B. radio C. pen
小题6:A. heavier B. lighter C. cheaper
小题7:A. hold B. build C. discover
小题8:A. blackboard B. desk C. screen
小题9:A. find out B. hand in C. get back
小题10:A. helpful B. famous C. bad