heart attack（心脏病）可数还是不可数

请问表示“心脏病”的 heart attack 可数吗？见到过下面这样的用法：

He has three heart attacks a day. 他心脏病一天发作3次。

He died of a heart attack during a routine operation. 他在一次普通手术中死于心脏病。

从上面的句子来看，heart attack 应该是可数的，但它可以用不可数名词吗？比如表示抽象意义。像上面第二句可以这样改吗？He died of heart attack during a routine operation.（去掉了不定冠词）

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分类：名词用法

最佳答案 2014-11-14 17:41

以下是三部权威词典中收录的 heart attack 词条，均注明了其为可数名词。因此，要说 He died of a heart attack during a routine operation.
heart attack
1.《朗文当代》
n [C] a sudden serious medical condition in which someone's heart stops workingnormally, causing them great pain
2.《剑桥高级学习词典》
noun [C]
a serious medical condition in which the heart does not getenough blood, causing great pain and often leading to death: John had a heart attack three yearsago.
3.《麦克米兰英语词典》
noun [count]
an occasion when someone suddenly has a lot of pain intheir chest and their heart stops working: He died of a heart attack. One of the passengers suffered a heartattack.