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【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。 ■引导条件状语从句的从属连词 主要的有if, unless, as [so] long as等： You can leave now if you like. 如果你愿意现在就可以走了。 As long as it doesnt rain we can go. 只要不下雨，我们就可以去。 【注】除以上基本的引导条件状语从句的从属连词外，还有的动词尤其是其分词形式(如suppose, supposing, provided, providing等)和介词短语(如in case, on condition that等)也可用作连词表示条件： In case I forget, please remind me about it. 万一我忘记，请提醒我一下。 I will come on condition (that) she is invited too. 如果邀请她来, 那我就来。 He may go with us provided [providing] he arrives in time. 他若及时到，就可以和我们一起走。 Suppose 和supposing 引导条件状语从句时，通常用于主句为疑问句的场合： Suppose the boss saw you，what would he say? 如果老板看到你，他会怎样说? Supposing he does not come, shall we go without him? 他若不来，是不是不带他去? | 
