下文《2013年6月四级考试真题及答案详解》由留学群英语频道为您整理，欢迎您访问留学群浏览更多资讯。
1. A. they are not rescued once a new edition comes out
2. B. They haven’t fixed all the shortcomings of print books.
3. A. they find it troublesome to take notes with an iPad.
4. D. they are no more than print versions put on a screen
5. C. a platform for building multimedia content
6. A. share his learning experience with the best and brightest thinkers
7. C. professors can join in students’ online discussions
8. manpower to put together each one
9. cost
10. remains to be seen
【整体点评】
这是一篇讨论电子课本能否取代纸质课本的议论文。电子书在现在社会已逐渐推广，因此，该话题对于考生而言并不陌生。文章通过对比，电子课本和纸质课本的优劣，最后，得出结论：电子课本未来能否取代纸质课本仍然是一个未知数。文章整体脉络清晰，论点鲜明。考生只要依照文章顺序，按图索骥，答对本篇阅读中的题目还是相对容易的。
【逐题细评】
1. 答案：A. they are not rescued once a new edition comes out
解析：【细节题】。由关键词the biggest problem 定位至文章第二段首句。由“But the worst part is that print editions of textbooks are constantly undergoing revisions.”可知，纸质版课本最大的问题是经常修订，因此，正确答案为A。
2. 答案：B. They haven’t fixed all the shortcomings of print books.
解析：【细节题】。由第三段“Which is why digital textbooks, if they live up to their promise, could help ease many of these shortcomings. But till now, they’ve been something like a mirage (幻影) in the distance,”可知，电子课本没能解决纸质书的所有问题。因此，正确答案为B。
3. 答案：A. they find it troublesome to take notes with an iPad.
