阅读理解概述（一）
阅读理解概述（二）
如何抓住主题思想（一）
如何抓住主题思想（二）
如何查找主要事实
或特定细节
如何进行推理和
判断
如何确定作者的
观点和态度
如何猜测词义（一）
如何猜测词义（二）
简短回答问题题型
解析
历年四级试题阅读理
解部分集粹（一）
历年四级试题阅读理
解部分集粹（二）
历年四级试题阅读理
解部分集粹（三）
| 第十二章 历年四级试题阅读理解部分集粹（二） 1991年6月 Passage 3 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 had arrived. It hadn't. 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 the agency cancelled its earlier approval, effectively banning (禁止) the device. The recall may hurt Symbion Inc., maker of the Jarvik-7, but it won't end the request for an artificial heart. One problem with the banned model is that the tubes connecting it to an external power source created a passage for infection. Inventors are now wording on new devices that would be fully placed, along with a tiny power pack, in the patient's chest. The first sample products aren't expected for another 10 of 20 years. But some people are already worrying that they'll work-and that America's overextended health-care 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 nation's health. 31. According to the passage the Jarvik-7 artificial heart proved to be _____. a) a technical failure b) a technical wonder c) a good life-saver d) an effective means to treat heart disease 32. From the passage we know that Symbion Inc. ____. a) has been banned by the government from producing artificial hearts b) will review the effects of artificial hearts before designing new models c) may continue to work on new models of reliable artificial hearts d) can make new models of artificial hearts available on the market in 10 to 20 years 33. The new models of artificial hearts are expected _____. a) to have a working life of 10 or 20 years b) to be set fully in the patient's chest c) to be equipped with an external power source d) to create a new passage for infection <<—— 上一页 ——＞＞ 下一页 |
