【分析解答题】

Questions 61 to 65 are based on the following passage.　　Imagine a classroom missing the one thing that has long been considered a necessary part to reading and writing: paper. No notebooks, no textbooks, no test paper.And there are no pencils or pens, which, after all, always seem to run out of ink at the critical moment.　　

A、“paperless classroom” is what more and more schools are trying to achieve. Students don’t do any handwriting in this class. Instead, they use palm-sized (手掌大小的), or specially designed computers. The teacher downloads texts from Internet libraries and sends them to every student’s personal computer.　　Having computers also means that students can search the WeB、They can look up information on any subject they’re studying, from math to social science.　　And exams can go online, too.At a school in Tennessee, U.S.
A、, students take tests on their own computers. The teacher records the grades on the network for everyone to see and then copies them into his or her own electronic grade book.　　
A、paperless classroom is a big step towards reducing the waste of paper. The school teacher, Stephanie Sorrell in Kentucky, U.S.
A、, said she used to give about 900 pieces of paper each week to the students. “Think about the money and trees we could save with the computers, ”she saiD、　　But, with all this technology, there’s always the risk that the machines will break down. So, in case of a power failure or technical problem, paper textbooks are still widely available for these hi-tech students.The last but one paragraph mainly tells us that ________________________can　　be saved by the use of computers.