阅读·简答分册40天攻克大家英语四级

　　unit 1 总论Day 3 题型及应对策略二(推论题)   
　　题型及应对策略二(推论题)       
　　这类问题的难度相对较大,需要我们不仅读懂字面含义,而且理解其字里行间的隐含意思。       
　　一般题目形式为:       
　　The author seems to be in favor of/against...       
　　We can infer/assume that...       
　　It can be concluded from the passage that...       
　　The passage suggests that...       
　　The author of the passage would most likely imply...       
　　It can be learned that...       
　　请读下面的文章,做出推论题。       
　　Exercise 1       
　　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 15 years, pilots have reported well over 100 incidents 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.       
　　RTCA, an organization which advises the aviation(航空)industry, has recommended that all airlines ban(禁止)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 difficulty is predicting how electromagnetic fields might affect an aircraft’s computers. Experts know that portable devices emit radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not.       
　　The fact that aircraft may be vulnerable(易受损的)to interference raises the risk that terrorists may use radio system in order to damage navigation equipment. As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.       
　　Q: It can be inferred from the passage that the author .       
　　A)

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