⑤Environmentalists believe one possible way of dealing with the paper situation is_________．
A．to encourage printing more quality documents B．to develop new printers using recycled paper
C．to find new materials for making paper D．to plant more fast-growing trees
[分析]本题问及环保人士（environmentalists）对于用纸所引起的环保问题的解决途径所持看法．结尾段中谈到：The action group （= the environmentalists） has also found acceptable paper made from materials other than wood， such as agricultural waste，也就是本题选项中的C项to find new materials for making paper．
通过查读可以发现，选项D在文中根本没有涉及，选项B将文中细节内容做了一点改变，形成干扰．
考虑B项，文中为：the problem is taken care of， because of recycling．．．；．．．printers that prin to on both sides are growing in popularity（结尾段）；两处内容综合衍生而成选项B．但并未说有使用recycled paper的new printers，本项应排除．
D项所说的plant more fast-growing trees则在文中完全没有提到．[答案] c
⑥Hewlett-Packard Co． has decided to develop new technologies because ________．
A．people are concerned about the environment
B．printers in many offices are working overtime
C．small companies need more hard copies
D．they see a growing market for printers
[分析]题干中的HP Company（这家公司在打印机和电脑厂商里也可算是闻名遐迩了）是对我们寻找答案极为有用的线索，循此很快可以找到第3段里，该公司develop new technologies的原因（也是目的）在于：enable people to print even more．．．．本段结尾则一语道破：As the company sees it，the more use of the Internet the greater demand for printers．显然只是要让人们更多地打印，牟利之心昭然若揭，其技术发展的原因与环保无关（排除A项）；与超时办公也无直接逻辑联系（排除B项）；对于hard copies有需求的也不仅仅是small companies（排除C项）；本题正确答案为D．
例3：A visitor visits an island where two tribes live. One tribe always tells the truth and the other always lies. The truth tellers live on the western side of the island, and those who lie live on the eastern side. The visitor wants to determine whether the native beside him is a truth teller or not by asking only one question. He asks the native,” Go and ask the native in the distance which side of the island he lives on.” When the messenger returns, he says, "He said he lives on the western side of the island."Is the messenger a truth teller or not? How can the visitor be sure?
⑦According to the messenger's answer, the visitor can conclude that_______________
A. The messenger lives on the western side of the island because he tells the truth.
B. the messenger lives on the eastern side of the island because his answer may be a lie.
C. it's hard to determine whether the messenger is a truth teller or not.
D. the messenger probably lives in the western side of the island because his answer may be true.
[分析]推测有关信使（近处的当地人）情况的。我们知道，讲真话的部落住在岛的西部，撒谎的部落住在岛的东部。这个信使去问远方的当地人住在岛的哪一边（东部还是西部）。远方的当地人只能有两种情况，要么住在岛的西部，要么住在岛的东部。如果他住在岛的西部，他就是一个讲真话的人，他就会如实回答他住在西部。如果他住在岛的东部，他就是一个撒谎的人。他本来住在东部，但在回答时，必须要说谎，他只能回答他住在西部。所以远方的当地人不管是住在东部还是西部，他的回答只有一个：“我住在西部”。如果信使告诉参观者远方的当地人住在西部，信使无疑是说了真话，那么信使一定是住在岛的西部。反之，如果信使告诉参观者远方的当地人住在东部，那么信使就说了假话，信使肯定住在东部。故此题答案是A。
⑧The native in the distance says he lives on the western side of the island. According to his answer, which conclusion of the following is wrong?
A. He may live on the eastern side of the island.
B. He may live on the western side of the island.
C. He may be telling the truth.
D. He can't be telling the truth.
[分析]推测远方的当地人的情况。从短文提供的信息来看，我们无法判定远方的当地人是住在岛的东部还是岛的西部，两种情况都是可能存在的。此题要注意情态动词的语气。A.“他可能住在岛的西部”;B.“他可能住在岛的东部”;C.“他可能讲了真话”。上述A、B、C三种情况都是可能的。D.“他不可能讲真话”，语气太绝对。推测错误。故答案为D。
例4：When the young waitress near my house started saying hello to me every day, I was very happy. She was at least fifteen years younger than I. One day she signed me to come near. When I walked over, she asked,” Are you single?" “Why, yes." I answered, smiling at her happily.“So is my mother." she said, “Would you like to meet her?"
⑨The writer talked about the waitress' age because he thought___________.
A. she was young B. it a pleasure to make friends with her
C. she was beautiful D. it strange for her to fall in love with him
⑩The waitress said hello to the writer every day because___________.
A. she lived near his house B. he often went to visit her mother
C. she wanted to be friendly with him D. she loved him very much
[分析]这是两道推测原因的题目。女服务员每天向作者示好，作者产生误解，以为女孩对他有意。考虑到他们年龄相差悬殊，作者认为女孩爱上他有点奇怪。故第⑨题答案是D。女孩问作者是否单身，并提到她母亲也是单身，并邀请他与她母亲见面，可见，女孩每天向他问好，目的是想取得他的好感，进而搓和他和她母亲。第⑩题答案是C。