英语相似词辨析 infectious,contagious(在线收听

infectious,contagious

这一对词都是形容词,又都具有“传染性的”、“传染病的”意义,但内涵和使用场合有所不同。

Infectious disease 是“间接传染的病”,指病菌通过空气、食物、水、衣服、容器等物的传染。例:

Tuberculosis is an infectious disease.

肺结核是一种传染病。

It's said that cancer is not infectious.

据说癌症是不会传染的。

Contagious disease 是“直接传染的病”,一般指跟病人直接接触而感染的病。例:

Scarlet fever is a contagious disease.

猩红热是一种传染病。

Measles and aids are highly contagious.

麻疹和艾滋病是很易传染的。

这两个词用作转义时,可以互换使用,它们都表示“感化”、“感染”之意。例如:

The enthusiasm for the pop-singer is contagious.

He stood there like a fool amid the infectious laughter of his friends.

Infectious 的名词是 infection;contagious的名词是contagion。

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