作者意图
The biggest safety threat facing airlines today may not be a terrorist with a gun，but the man with the portable computer in business class．In the last 15years，pilots have reported well over 100incidents that could have been caused by electromagnetic interference．The source of this interference remains unconfirmed，but increasingly，experts are pointing the blame at portable electronic devices such as portable computers，radio and cassette players and mobile telephones．
An aviation company has recommended that all airlines ban such devices from being used during critical stages of flight，particularly take-off and landing．Some experts have gone further，calling for a total ban during all flights．Currently，rules on using these devices are left up to individual airlines．And although some airlines prohibit passengers from using such equipment during take-off and landing，most are reluctant to enforce a total ban，given that many passengers want to work during flights．
The fact that aircraft may be vulnerable to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment．As worrying，though，is the passenger who can't hear the in- structions to turn off his radio because the music's too loud．
问题：
It can be inferred from the passage that the author _________．
A）hasn't formed his own opinion on the problem
B）has overestimated the danger of electromagnetic interference
C）regards it as unreasonable to exercise a total ban during flight
D）is in favor of prohibiting passengers'use of electronic devices completely
解题思路：和作者意图有关的分散的信息有第一段的最后一句（The source of this interference remains unconfirmed，but increasingly， experts are pointing the blame at portable electronic devices such as portable computers，radio and cassette players and mobile telephones．），第二段的第二、三两句（Some experts have gone further，calling for a total ban during all flights．Currently，rules on using these devices are left up to individual airlines．），和第三段的最后一句（As worrying，though， is the passenger who can't hear the instructions to turn off his radio because the music's too loud．）。上面几处零星的信息告诉我们，电磁干扰是飞机失事的主要原因，而且有些专家主张全面禁止携带电子设备登机。特别是第三段的最后一句给了我们明显的暗示：虽然如此，乘客还是使人担忧。因为他们经常在飞机上听收音机，而且音量很大，因此他们根本听不见机组人员让他们关机的指令。联系到整篇文章所表达的意思，我们可以推理出：乘客的这种行为对飞机的失事就更危险了。据此推断选项D为正确答案。
总之，上面讨论到的各种题型的解题技巧只是相对而言的，要做好阅读理解题既需要有扎实的阅读基本功，又需要具备推理、综合等多方面的综合能力，而这些都是靠平时一点一滴积累起来的。因此，把握住了“平时”，也就抓住了“根本”。
