状语从句知识点总结：英语时间状语从句的用法及有关说明
<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>一、普通类从属连词</p><p>引导时间状语从句的普通类从属连词有<span word="when">when</span>(当时)，<span word="while">while</span>(在期间)，<span word="as">as</span>(当，一边一边)，<span word="before">before</span>(在之前)，<span word="after">after</span>(在之后)，<span word="since">since</span>(从以来)，<span word="till">till</span>/<span word="until">until</span>(直到)，<span word="whenever">whenever</span>(无论何时)，<span word="as">as</span> <span word="soon">soon</span> <span word="as">as</span>(一就)等。如：</p><p><span word="When">When</span> <span word="I">I</span> <span word="went">went</span> <span word="into">into</span> <span word="the">the</span> <span word="classroom">classroom</span>, <span word="he">he</span> <span word="was">was</span> <span word="reading">reading</span>. 当我走进教室时，他正在看书。</p><p><span word="He">He</span> <span word="read">read</span> <span word="a">a</span> <span word="newspaper">newspaper</span> <span word="as">as</span> <span word="he">he</span> <span word="went">went</span> <span word="along">along</span>. 他边走边看报纸。</p><p><span word="We">We</span> <span word="must">must</span> <span word="strike">strike</span> <span word="while">while</span> <span word="the">the</span> <span word="iron">iron</span> <span word="is">is</span> <span word="hot">hot</span>. 我们必须趁热打铁。</p><p><span word="I">I</span> <span word="will">will</span> <span word="tell">tell</span> <span word="you">you</span> <span word="after">after</span> <span word="they">they</span> <span word="leave">leave</span>. 于他们走后我再告诉你。</p><p><span word="I">I</span> <span word="told">told</span> <span word="him">him</span> <span word="to">to</span> <span word="come">come</span> <span word="back">back</span> <span word="whenever">whenever</span> <span word="he">he</span> <span word="wants">wants</span> <span word="to">to</span>. 我告诉他什么时候想回来就回来。</p><p><span word="I">I</span> <span word="waited">waited</span> <span word="till">till</span>/<span word="until">until</span> <span word="she">she</span> <span word="was">was</span> <span word="back">back</span>. 我一直等到她回来(<span word="from">from</span> <span word="www">www</span>.<span word="yygrammar">yygrammar</span>.<span word="com">com</span>)。</p><p><span word="Once">Once</span> <span word="time">time</span> <span word="is">is</span> <span word="gone">gone</span>, <span word="you">you</span> <span word="will">will</span> <span word="never">never</span> <span word="get">get</span> <span word="it">it</span> <span word="back">back</span>. 时间一旦失去就再也得不到了</p><p>注意：在时间状语从句中，不能用一般将来时、过去将来时态或将来完成时，而要用相应的一般现在时态、一般过去时或现在完成时来代替。如：</p><p><span word="Ill">Ill</span> <span word="telephone">telephone</span> <span word="you">you</span> <span word="as">as</span> <span word="soon">soon</span> <span word="as">as</span> <span word="I">I</span> <span word="get">get</span> <span word="there">there</span>. 我一到达那里就打电话给你。</p>
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