No matter how (或 what, where, who 等）疑问词的用法

No matter how (或 what, where, who, where, when 等) 引出的让步状语从句常可分别用 However, Whatever, Wherever, Whoever, Whenever 等来代替，并分别表示“不管（或不论）如何…”、“不论或不管什么”、“不管或不论何处”、“不管或不论是谁”、“不管或不论在何处或去何处”、“不管或不论什么时候”等含义。

1. All matter, no matter what (= whatever) it is, is made up of atoms. 每种物质，不管它是什么，都由原子构成。
2. No matter what (= whatever) happens, we must push on with our work. 不管发生什么情况，我们都必须赶快完成工作. （转译）
3. When n, P and T have definite values, then V must have a definite value too, no matter what (= whatever) gas is present. So we may write PV = nRT. 不管存在的是什么气体，当 n, P 和 T 具有一定值时，则 V 也必须有一定值。因此我们可写成 PV = nRT。
4. No matter how（= However）difficult the ship construction may be, we must complete it in time. 不管造船如何艰巨，我们必须按时完成。
5. Force is measured in pounds, no matter how (= However) it is produced. 不管力是怎样产生的，可按磅来计量。
6. No matter where (= wherever) you want me to go, I will follow you. 不管你要我去哪里，我一定跟你走。
7. No matter when (= whenever) you leave, we’ll go to the subway station to meet you. 不论你何时动身，我们都将去地铁站迎接你。
8. No matter who（= whoever）phones, please tell them we are out. 不论谁来电话，请告诉他们我们外出了。

注：注意下列两个句型跟上述句型有所不同：

1）No matter whether he is right or wrong, he usually wins the argument. 不论他是对或错，他在辩论中总是获胜。（本句可省略 No matter 和 he is, 而句义不变。）
2）No matter if he gets into trouble. 如果他惹了麻烦，那也无关紧要。