Scientists Develop Ways of Detecting Heart Attack
　　German researchers have ____1____ a new generation of defibrillators and early-warning software aimed at offering heart patients greater protection____2____sudden death from cardiac arrest.
　　In Germany alone around 100,000 people die annually as a result of cardiac arrest and many of these cases ____3____ by disruption to the heart’s rhythm. Those most at risk are patients who have ____4____ suffered a heart attack, and for years the use of defibrillators has proved useful in diagnosing ____5____ disruptions to heart rhythms and correcting them automatically by intervening within seconds. These devices ____6____ a range of functions, such as that of pacemaker.
　　Heart specialists at Freiburg’s University Clinic have now achieved a breakthrough with an implanted defibrillator ____7____ of generating a six-channel electrocardiogram (ECG) within the body. This integrated system allows early diagnosis of ____8____ blood-flow problems and a pending heart attack. It will be implanted in patients for the first time this year. Meanwhile, researchers at the Fraunhofer Institute for Applied Mathematics in Kaiserslautern have developed new computer software that renders the evaluation of ECG data ____9____
　　The overwhelming ____10____ of patients at risk will not have an implanted defibrillator and must for this reason undergo regular ECGs. Many of the current programs only ____11____ into account a linear correlation of the data. We are, however, making use ____12____ a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system2，”Hagen Knaf says, “____13____changes in the heart beats over time can be monitored and individual variations in patients taken into account3.” An old study of ECG data, based ____14____600 patients who had suffered a subsequent heart attack, enabled the researchers to compare risks and to show ____15____ the new software evaluates the data considerably better.
　　词汇：
　　defibrillator 去纤颤器 pending 迫近的，即将发生的
　　cardiac .心脏的 implant 植入 arrest .停止
　　render 使得 disruption 中断 overwhelming .压倒的
　　pacemaker .起搏器 linear 线(性)的
　　electrocardiogram 心电图 correlation .相互关系 chaotic混乱的
　　注释：
　　1.…and early-warning software aimed at offering heart patients greater protection…：本句中aimed at是过去分词短语，作前面两个名词的定语，原意是“把目标瞄准……”，此处可译为“旨在为心脏病人提供更多保护的早期预报软件”。
　　2.…a non-linear process that reveals the chaotic patterns of heart beats as an open and complex system：这里that引导的是process的定语从句。as是介词，open在此可译务“直观的”。本句的意思是：……能够将心脏跳动的混乱模式作为一个直观而又复杂的系统揭示出来的非线性处理方法。
　　3.... and individual variations in patients taken into account：这里在taken之前省略了与上句相同的情态动词和助动词can be。
　　练习：
　　1.A　come up B　come up with C　come up to D　come up against
　　2.A　to B　for C　with D　from
　　3.A　are caused B　caused C　are to cause D　have been causing
　　4.A　easily B　readily C　frequently D　already
　　5.A　disease-producing B　health-improving C. life-threatening D.error-correcting
　　6.A　take in B　take after C　take on D　take from
　　7.A　capable B　able C　skillful D　skilled
　　8.A　chronic B　acute C　recurrent D　persistent
　　9.A　precisely B　more precisely C　precision D　more precise
　　10.A　maximum B　minimum C　majority D　minority
　　11.A　get B　take C　bring D　fetch
　　12.A　of B　with C　for D　in
　　13.A　Similarly B　In this manner C　Otherwise D　In this way
　　14.A　in B　for C　upon D　with
　　15.A　what B　where C　that D　when
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