The biggest danger facing airlines nowadays may not be a terrorist with a gun, but the man with portable computer in business class. In the last 16 years, pilots have reported well  over 100 incidents that could have been caused by electromagnetic interference  (電磁干擾).  The source of this interference remains not proved, but increasingly, experts are pointing the  blame at portable electronic devices such as portable computers, radio and cassette players  and mobile telephones.
RTC.A. an organization which advises the aviation  (航空 )industry, has suggested 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 .Cur- rently , rules on using these devices are left up to individual airlines. And although some air- lines prevent passengers from using such equipment during take-off and landing, most are un- willing to carry out a total ban, given that many passengers want to work during flight.
The difficulty is predicting how electromagnetic fields might affect an aircraft's computers. Experts know that portable devices send out 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 fragile 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 instructions to turn off his radio because the music's too loud.
小題1:What is said about the over 100 aircraft incidents in the past 16 years?
A.They may have been caused by the damage to-the radio systems.
B.They may have taken place during take-off and landing.
C.They were proved to have been caused by the passengers portable computers.
D.They were suspected to have resulted from electromagnetic interference.
小題2:Why is it difficult to predict the possible effects of electromagnetic fields on an airplane 's computers?
A.Because it is extremely dangerous to conduct such research on an airplane.
B.Because it remains a mystery what wavelengths are liable to be interfered with.
C.Because research scientists have not been able to produce the same effects in labs.
D.Because experts lack adequate equipment to do such research.
小題3:Few airlines want to perform a total ban on their passengers using electronic devices because_______
A.they don't believe there is such a danger as radio interference
B.the harmful effect of electromagnetic interference is yet to be proved
C.most passengers refused to take a plane ,which bans the use of radio and cassette players
D.they have other effective safety measures to fall back on
小題4:The passage is mainly about_________.
A.a(chǎn) new rule for all airlines
B.the disadvantages of electronic devices
C.a(chǎn) possible cause of aircraft incidents
D.effective safety measures for air flight

小題1:D
小題2:C
小題3:B
小題4:C

試題分析:這篇文章是一篇科普類,介紹了飛機事故的一種可能成因,即便攜式電子設(shè)備所造成的影響。
小題1:細(xì)節(jié)理解題:依據(jù)文章第一段第二句in the last 16 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference。故選D。
小題2:細(xì)節(jié)題:依據(jù)第三段最后一句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.可知選C選項,故選C。
小題3:推理判斷題:依據(jù)文章第三段可知The difficulty is predicting how electromagnetic fields might affect an aircraft's computers.可知,答案選B。A、C、D三個選項明顯在文章中沒提到。故選B。
小題4:主旨大意題:通讀全文可知,本文在討論便攜式電子設(shè)備可能對航空事故的影響。故選C。
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科目:高中英語 來源:不詳 題型:閱讀理解

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科目:高中英語 來源:不詳 題型:閱讀理解

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Kenyon College
Gambier, Ohio, US
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Oxford University
Oxford, England
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Princeton University
Princeton, N.J., US
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Scripps College
Claremont, Calif., US
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Stanford University
Palo Alto, Calif., US
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Tsinghua University
Beijing, China
Forbe’s panel of architects says natural setting plays a big part in assessing a campus’ beauty. In that regard, this campus is blessed: Founded in 1925, Tsinghua sits on the former site of the Qing Dynasty’s royal gardens. Many of Beijing’s most notable historical sites, like the Summer Palace, are close by. The campus is peppered with artificial ponds where stone benches and floating lotus blossoms inspire reflection.
小題1:In this text, the writer mentioned many best-looking campuses in the world. How many Universities are in America?
A.Six.B.Three.C.Four.D.Five.
小題2:which school is considered a paradigm for all college campuses.?
A.Oxford University.B.Stanford University.
C.Scripps College.D.Princeton University.
小題3:Which University has the style of pure Collegiate Gothic?
A.Tsinghua UniversityB.Oxford University
C.Princeton UniversityD.Kenyon College
小題4: In which part of a magazine can we probably read this passage?
A.Entertainment.B.Education.C.Culture.D.Health.
小題5:Why does Tsinghua University enter the list of the best-looking campuses in the world?
A.because the amber trees give the students “a sense of autumn” come fall.
B.because the artistic connects between buildings and landscape.
C.because its natural setting plays a big part.
D.because it is founded in 1925.

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