大家好，小好來為大家解答以上問題。時(shí)間狀語從句講解視頻，時(shí)間狀語從句很多人還不知道，現(xiàn)在讓我們一起來看看吧！

1、一、when“當(dāng)……時(shí)”,引導(dǎo)時(shí)間狀語從句時(shí),從句用于表示主句動(dòng)作發(fā)生的特定時(shí)間.如：The days get longer when spring comes. = When spring comes, the days get longer.春天到來時(shí),白天變得更長了.二、before“在……之前”,引導(dǎo)時(shí)間狀語從句時(shí),表示主句動(dòng)作發(fā)生在從句動(dòng)作之前.如：Close the door before you leave the room.離開房間前關(guān)上門.三、after“在……之后”,引導(dǎo)時(shí)間狀語從句時(shí),表示主句的動(dòng)作發(fā)生在從句的動(dòng)作之后.如：I went to school after I finished my breakfast.吃完早飯后我就去上學(xué)了.四、as soon as“一……就……”,引導(dǎo)時(shí)間狀語從句時(shí),表示主句動(dòng)作緊接著從句動(dòng)作發(fā)生.如：I’ll call you as soon as I get home.我一到家就給你打電話.五、until, till“直到”,引導(dǎo)時(shí)間狀語從句.當(dāng)主句謂語動(dòng)詞是延續(xù)性動(dòng)詞時(shí),主句常用肯定形式；當(dāng)主句謂語動(dòng)詞是非延續(xù)性動(dòng)詞時(shí),主句要用否定形式,即“not…until/till…”意為“直到……才……”.如：I’ll wait here until/till the rain stops.我將在這里等著,直到雨停.You can’t go home until/till you finish your work.直到你完成你的工作,你才能回家.下面再向大家透露點(diǎn)兒內(nèi)幕消息,狀語從句的兩手絕活——時(shí)態(tài)的呼應(yīng)和從句的位置.請(qǐng)看：一、時(shí)態(tài)呼應(yīng)一般來講,復(fù)合句都要遵循主、從句時(shí)態(tài)呼應(yīng)規(guī)律,狀語從句也不例外.即主句用現(xiàn)在時(shí),從句也用現(xiàn)在時(shí)；主句用過去時(shí),從句也用過去的某種時(shí)態(tài).如：Be careful when you cross the road.過馬路時(shí)要小心.You must see the doctor if you are ill.如果你生病了,你必須去看醫(yī)生.主句是一般過去時(shí),從句也要用一般過去時(shí).如：When he was seven years old, he could swim.當(dāng)他七歲時(shí)就會(huì)游泳.She turned off the light before she left the office.她離開辦公室前就關(guān)了燈.二、主從句的位置.大多數(shù)情況下,從句可以位于主句之前,也可以位于主句之后.不過從句在前時(shí),主從句之間必須用逗號(hào)隔開.如：Please tell me when he comes back. = When he comes back, please tell me.。

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