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1、 2022年6月英语四级阅读练习题：人工心脏Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Clark-alive and conscious after trading his diseased heart for a metal-and-plastic pump-convinced the press, the public and many doctors that the future
2、 had arrived. It hadnt. After monitoring production of the Jarvik-7, and reviewing its effects on the 150 or so patients (most of whom got the device as a temporary measure) the U.S. Food and Drug Administration concluded that the machine was doing more to endanger lives than to save them. Last week
3、 the agency cancelled its earlier approval, effectively banning (制止) the device.The recall may hurt Symbion Inc., maker of the Jarvik-7, but it wont end the request for an artificial heart. One problem with the banned mode is that the tubes connecting it to an external power source createda passage
4、for infection. Inventors are now working on new devices that would be fully placed, along with a tiny power pack, in the patients chest. The first sample products arent expected for another 10 or 20 years. But some people are already worrying that theyll workand that Americas overextended healthcare
5、 programs will lose a precious $2.5 billion to $5 billion a year providing them for a relatively few dying patients. If such expenditures (开支) cut into funding for more basic care, the net effect could actually be a decline in the nations health.练习题：Choose correct answers to the question:1. Accordin
6、g to the passage, the Jarvik-7 artificial heart proved to be _.A. a technical failureB. a technical wonderC. a good life-saverD. an effective means to treat heart disease2. From the passage we know that Symbion Inc. _.A. has been banned by the government from producing artificial heartsB. will revie
7、w the effects of artificial hearts before designing new modelsC. may continue to work on new models of reliable artificial heartsD. can make new models of artificial hearts available on the market in 10 to 20 years3. The new models of artificial hearts are expected _.A. to have a working life of 10
8、or 20 yearsB. to be set fully in the patient”s chestC. to be equipped with an external power sourceD. to create a new passage for infection4. The word “them“ in Line 7, Para. 2 refers to _.A. doctors who treat heart diseasesB. makers of artificial heartsC. America”s health-care programsD. New model
9、of artificial hearts5. Some people feel that _.A. artificial hearts are seldom effectiveB. the country should not spend so much money on artificial heartsC. the country is not spending enough money on artificial heartsD. America”s health-care programs are not doing enough for the nation”s health1.A
10、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,美国食品与药品治理局得出结论,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急的境地。由此可知Jarvik-7是一个技术失败,应选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。原文只提到政府制止Jarvik-7这种型号的人造心脏，A把范围扩大到了全部的人造心脏;B在原文中并未提及;D说的对象不是Symbion公司，也可排解。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，应选B。A在文中并未提及;C、D说的对象是Jarvik-7，故也排解。4.D 从句子意思看，“向为数不多的濒危病人供应” 的明显是上一句中的sample products，即可与电源组一并植于人体内的new devices，应选D。5.B 第2段倒数第2句But some people are already worrying这句话表达了有些人已经在担忧，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，而由该段最终一句可以看出认为这样的做法是不明智的，因此B是答案。
