Choosecorrectanswerstothequestion:
1.Accordingtothepassage,theJarvik-7artificialheartprovedtobe_____.
D.aneffectivemeanstotreatheartdisease
2.FromthepassageweknowthatSymbionInc._____.
A.hasbeenbannedbythegovernmentfromproducingartificialhearts
B.willreviewtheeffectsofartificialheartsbeforedesigningnewmodels
C.maycontinuetoworkonnewmodelsofreliableartificialhearts
D.canmakenewmodelsofartificialheartsavailableonthemarketin10to20years
3.Thenewmodelsofartificialheartsareexpected______.
A.tohaveaworkinglifeof10or20years
B.tobesetfullyinthepatient’schest
C.tobeequippedwithanexternalpowersource
D.tocreateanewpassageforinfection
4.Theword"them"inLine7,Para.2refersto_____.
A.doctorswhotreatheartdiseases
B.makersofartificialhearts
C.America’shealth-careprograms
D.Newmodelofartificialhearts
5.Somepeoplefeelthat______.
A.artificialheartsareseldomeffective
B.thecountryshouldnotspendsomuchmoneyonartificialhearts
C.thecountryisnotspendingenoughmoneyonartificialhearts
D.America’shealth-careprogramsarenotdoingenoughforthenation’shealth
1.[A]文章一开头说Jarvik-7以前被认为是一大技术成就，但文章第1段倒数第2句中提到,美国食品与药品管理局得出结论,认为这种仪器与其说是挽救生命,不如说是将生命置于更加危险的境地。由此可知Jarvik-7是一个技术失败,故选A。
2.[C]文章第2段第1句提到，要求生产人造心脏的Symbion公司召回其销售的人造心脏，这对该公来说或许是一种损失，但这一禁令不会终结人们对人造心脏的需求。从这一句可推断出应选C。原文只提到政府禁止Jarvik-7这种型号的人造心脏，A把范围扩大到了所有的人造心脏;B在原文中并未提及;D说的对象不是Symbion公司，也可排除。
3.[B]文章中第2段第3句提到，这种新仪器可以完全置于患者的胸腔内，B与之相符，故选B。A在文中并未提及;C、D说的对象是Jarvik-7，故也排除。
4.[D]从句子意思看，“向为数不多的瀕危病人提供”的显然是上一句中的sampleproducts，即可与电源组一并植于人体内的newdevices，故选D。
5.[B]第2段倒数第2句Butsomepeoplearealreadyworrying…这句话体现了有些人已经在担心，为为数不多的垂危病人动用巨额资金购置新型的人造心脏是否合算，而由该段最后一句可以看出作者认为这样的做法是不明智的，因此B是答案。
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