Hardly had I got home when it began to rain. 我一到家就开始下雨了。 1.肯定句:主句的谓语动词必须是延续性动词的肯定式,意为“某动作一直延续到某时间点才停止”。如: He remained there until/till she arrived. 他在那里一直等到她来。 You may stay here until/till the rain stops. 你可以在这里待到雨停。 2.否定句:主句的谓语动词必须是非延续性动词,意为“某动作直到某时间才开始”。如: He won't go to bed till/until she returns. 直到她回来他才睡。 三、till,until和not...until Until you told me I had no idea of it. 4.not...until句型中的强调和倒装用法: 直到你告诉我,我才知道这件事。 ①It was not until you told me that I had any idea of it.(强调句型) ②Not until you told me did I have any idea of it.(not until置于句首,主句要倒装) 四、before和since 1.若表达“还未……就……;不到……就……;……才……;还没来得及……就……”时,需用连词before。如: We had sailed four days and four nights before we saw land. 我们航行了四天四夜才看到陆地。 We hadn't run a mile before he felt tired. 3.till不可以置于句首,而until可以。如: 我们跑了还不到一英里他就感觉累了。 Before I could get in a word,he had measured me. 我还没来得及插话,他就已经给我量好了尺寸。 2.before从句中谓语不用否定式。如: Before they reached the station,the train had gone. 他们到火车站前,火车已开走了。 3.It will be+一段时间+before...还要多久才……如: It will be half a year before I come back. 还得再过半年我才能回来。 It won't be long before we meet again. 过不了多长时间我们就会再见面了。 4.since从句的谓语动词一般是非延续性动词,主句的谓语动词是延续性的或者是反复发生过的动作。since从句的时态若是一般过去时,相应地,主句中的时态是现在完成时或现在完成进行时。如: I have written home four times since I came here. 自从我来到这儿,我已经给家里写过四次信了。 She has been working in this factory since she left school. 她离开学校以后就一直在这个工厂工作。 5.在“It is+一段时间+since从句”句型中,时间的计算一律从since从句中谓语动词所表示的动作完成或表示的状态结束时算起。如: It is three years since the war broke out. 自战争爆发以来有三年了。 It is three years since I smoked a cigar(=since I stopped smoking a cigar). 我不吸烟有三年了。 如果译成“我吸烟有三年了。”,应为:It is three years since I began to smoke. 五、every time,each time,next time,the last time,any time等名词短语用来引导时间状语从句,表示“每当……;每次……;下次……”等。如: Next time you come,do remember to bring your son here. 下次你来的时候,一定记着把你儿子带来。 The last time she saw James,he was lying in bed. 上次她看见詹姆斯的时候,他正躺在床上。 1.引导地点状语从句的从属连词有where,wherever。 We should go where the Party needs us most. 我们应到党最需要我们的地方去。 You are free to go wherever you like. 你愿意去哪里就去哪里。 Wherever there is smoke,there is a fire. 无火不生烟。(无风不起浪。) 2.注意区分where引导的定语从句与状语从句: You'd better make a mark where you have any questions.(状语从句) You'd better make a mark at the place where you have any questions.(定语从句) 你最好在有问题的地方做一下标记。 知识清单三 地点状语从句和原因状语从句 一、地点状语从句 二、原因状语从句 1.引导原因状语从句的从属连词有:because,as,since,now that,每个连词的含义不尽相同。 如: I was absent from the meeting because I was ill. 区别项目 位置 内涵 语气 能否回答why 能否被强调 because(因为) 主句前或后 直接因果关系 强 能 能 as(由于) 主句前或后 双方都知道 的原因 弱 不能 不能 since/now that (既然) 主句前 因为我病了,所以我开会缺席了。 As it is raining,we shall not go to the park. 由于在下雨,我们不去公园了。 Now that/Since everybody is here,let's begin our meeting. 既然大家都在,我们开始开会吧。 2.此外,when也可以表示原因,意为:since;considering that 既然;考虑到。如: It was foolish of you to take a taxi when you could walk there in five minutes. 既然你步行5分钟能到那里,却打的,真够愚蠢的。 引导目的状语从句的从属连词有:so that,in order that,for fear that,in case,lest等。 1.in order that与so that 两个连词都意为“以便……;为了……”,它们引导的状语从句中常用情态动词。in order that比so that正式,引导的状语从句可置于主句之前或之后,而so that引导的从句只能置于主句之后。如: I'll speak slowly so that you can understand me. 我会慢慢说,以便你能懂。 In order that we might see the sunrise,we started for the peak early.为了能看到日出,我们很早就出发去了山顶。 知识清单四 目的状语从句和结果状语从句 一、目的状语从句 引导目的状语从句时,for fear that表示“害怕,担心”某事会发生;in case(that)表示“以防(万一)”出现某种情况。如: Mary didn't want to get out of bed,for fear that she might wake her baby(up).玛丽不想起床,担心吵醒她的宝宝。 Take your raincoat,in case it rains. 带上雨衣吧,以防下雨。 二、结果状语从句 1.引导结果状语从句的从属连词有:so that,so...that...,such...that...。在非正式语体中,由so...that...,such...that...引导的句子中that可以省略,注意其结构形式: 2.for fear that与in case 如:
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