状语从句知识点总结：条件状语从句
<p>【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。</p><p>■引导条件状语从句的从属连词</p><p>主要的有<span word="if">if</span>, <span word="unless">unless</span>, <span word="as">as</span> [<span word="so">so</span>] <span word="long">long</span> <span word="as">as</span>等：</p><p><span word="You">You</span> <span word="can">can</span> <span word="leave">leave</span> <span word="now">now</span> <span word="if">if</span> <span word="you">you</span> <span word="like">like</span>. 如果你愿意现在就可以走了。</p><p><span word="As">As</span> <span word="long">long</span> <span word="as">as</span> <span word="it">it</span> <span word="doesnt">doesnt</span> <span word="rain">rain</span> <span word="we">we</span> <span word="can">can</span> <span word="go">go</span>. 只要不下雨，我们就可以去。</p><p>【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<span word="suppose">suppose</span>, <span word="supposing">supposing</span>, <span word="provided">provided</span>, <span word="providing">providing</span>等)和介词短语(如<span word="in">in</span> <span word="case">case</span>, <span word="on">on</span> <span word="condition">condition</span> <span word="that">that</span>等)也可用作连词表示条件：</p><p><span word="In">In</span> <span word="case">case</span> <span word="I">I</span> <span word="forget">forget</span>, <span word="please">please</span> <span word="remind">remind</span> <span word="me">me</span> <span word="about">about</span> <span word="it">it</span>. 万一我忘记，请提醒我一下。</p><p><span word="I">I</span> <span word="will">will</span> <span word="come">come</span> <span word="on">on</span> <span word="condition">condition</span> (<span word="that">that</span>) <span word="she">she</span> <span word="is">is</span> <span word="invited">invited</span> <span word="too">too</span>. 如果邀请她来, 那我就来。</p><p><span word="He">He</span> <span word="may">may</span> <span word="go">go</span> <span word="with">with</span> <span word="us">us</span> <span word="provided">provided</span> [<span word="providing">providing</span>] <span word="he">he</span> <span word="arrives">arrives</span> <span word="in">in</span> <span word="time">time</span>. 他若及时到，就可以和我们一起走。</p><p><span word="Suppose">Suppose</span> 和<span word="supposing">supposing</span> 引导条件状语从句时，通常用于主句为疑问句的场合：</p><p><span word="Suppose">Suppose</span> <span word="the">the</span> <span word="boss">boss</span> <span word="saw">saw</span> <span word="you">you</span>，<span word="what">what</span> <span word="would">would</span> <span word="he">he</span> <span word="say">say</span>? 如果老板看到你，他会怎样说?</p><p><span word="Supposing">Supposing</span> <span word="he">he</span> <span word="does">does</span> <span word="not">not</span> <span word="come">come</span>, <span word="shall">shall</span> <span word="we">we</span> <span word="go">go</span> <span word="without">without</span> <span word="him">him</span>? 他若不来，是不是不带他去?</p>
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