四六级考试网

Part IV Cloze （15 minutes）As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been ______71 only once – for a woman who had merely fainted. But the______ 72 made me quite curious about how ______73 this kind of thing happens I wondered what I would do if ______74 with a real midair medical emergency-with out access ______75 a hospital staff and the usual emergency equipment. So______ 76 the New England Journal of Medicine last week ______77 a study about in -flight medical events. I read it______ 78 interest.

The study estimated that there are a（n）______ 79 of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not ______80;fainting and dizziness are the most frequent complaints.______ 81 13% of them -roughly four a day – are serious enough to______ 82 a pilot to change course. The most common of the serious emergencies______ 83 heart trouble. strokes, and difficulty breathing.

Let’s face it: plane rides are ______84.For starters, cabin pressures at high altitudes are set at roughly______ 85 they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty ______86 ,but passengers with heart disease______ 87 experience chest pains as result of the reduced amount of oxygen flowing through their blood.______ 88 common in-flight problem is deep venous thrombosis – the so-called economy class syndrome （综合症）。______89 happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation, flights with at ______90 one attendant are starting to install emergency medical kits to treat heart attacks.

71 A）called B）addressed C）Informed D）surveyed

72 A）Accident B）condition C）incident D）disaster

73 A）soon B）long C）many D）often

74A）confronted B）treated C）identified D）provided

75A）for B）to C）by D）through

76A）before B）since C）when D）while

77A）collected B）conducted C）discovered D）published

78A）by B）of C）with D）in

79A）amount B）average C）sum D）number

80A）significant B）heavy C）common D）serious

81A）For B）On C）But D）So

82A）require B）inspire C）engage D）command

83A）include B）confine C）imply D）contain

84A）enjoyable B）stimulating C）tedious D）stressful

85 A）who B）what C）which D）that

86A）harshly B）reluctantly C）easily D）casually

87A）ought to B）may C）used to D）need

88A）Any B）One C）Other D）Another

89A）Whatever B）Whichever C）Whenever D）Wherever

90A）most B）worst C）least D）best

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