as和though的用法区别

as与though这两个词都可以引导让步状语从句，都有“虽然，尽管”的意思， 它们的区别是as引导让步状语从句常用倒装语序， though可与as替换，但不如as常用。

相关介绍

注意倒装的不同情况：

①表语的倒装Tired as he was, he still went on with his work.尽管他很累，还是继续工作。

Strange as it seems, It Is true.尽管这事看上去奇怪，但却是真的。

②谓语动词的倒装Try as he might, he didn&' t pass the exam.尽管他很用功，但考试没及格。

Search as they would, they could find nothing in the room尽管他们在房子里到处寻找，但他们找不到任何东西

③状语倒装Much as he likes the bike, he doesn t want to buy it.他虽然很喜欢那辆自行车，但不想买它。

Hard as I studied, I could not catch up with them.不管我学习怎样努力，都赶不上他们。

【注意】如果是单数名词或形容词的最高级作表语，不再用冠词。

如：Youngest as he is in our class. he speaks English the best虽然他是我们班年龄最小的，但英语说得最好。

2. though所接从句可放在主句前或后，词序不倒装

Though he was in poor health, he kept working虽然他身体不好，但他仍坚持工作。

Though it rained hard, he went to work on foot尽管雨下得很大，他还是步行去上班了。