1、高中英语状语从句考点 一、 时间状语从句 1.when, while和as的用法 (1)when既可引导一个持续动作,也可引导一个短暂性动作. when强调主从句动作的发生有先后。如: When he got there, the classroom had been cleaned. 他到的时候,教室已打扫过了。 (主句动作发生在从句动作之前,用过去完成时) when可作并列连词用,was /were doing 、be about to或be on the point of doing,表示“正在做..,就在这时发生了另外一件事”或“届时”。如: wa
2、s/were doing...when be about to do....when be on the point doing...when ①I was reading when he suddenly came in. ②I was about to leave when the telephone rang. (2) while强调主句动作发生在从句动作所发生的时间段内,从句的动作必须是延续性动词。如: Will you please take care of my house while I was away? (3) as引导一个持续性动作,强调主从句
3、的动作同时发生,有“一边..一边..”的意思,也可说明两种正在发展或变化的情况,有“随着..”的意思。 如: ①He sang as he walked.他边走边唱。 ②As he gets older, he gets more open. 随着年龄的增长,他越发开朗起来。 2. as soon as, the moment, the minute, the second, the instant, no sooner...than, hardly/scarcely...when...,immediately, directly, instant
4、ly的用法。 这些从属连词引导的从句都表示从句的动作一发生,主句的动作随即就发生,常译为“一...就...”, ①The moment she arrives,we can start. ②No sooner had we arrived at the station than the train left. 3.till, until和not...until的用法 (1)在肯定句中,主句谓语动词必须是延续性动词,意为“某动作一直延续到某点才停止”。 You may stay here till/until the rain stops. 你得在这里呆到雨
5、停。 (2)在否定句中,主句谓语动词必须是非延续性动词,从句为肯定式,意为“某动作直到某时间才开始”。 He won't go to bed till (until) she returns. 直到她回来他才睡。 (3)not...until句型中的强调和倒装说法。 It was not until you told me that I had any idea of it. (强调句型) Not until you told me did I have any idea of it. (not until 置于句首,主句要倒装) Not until he c
6、ame back did he find his house had been broken into. 4.before和since的用法 (1)连词before表示“还未„„就„„”,“不到„„就„„”,“„„才„„”,“趁还没来得及„„”。 We hadn't run a mile before he felt tired. Please write it down before you forget it. (2) before的句型:It will be+时间段+ before从句,表示“多久之后才„„”。 It will be half a yea
7、r before I come back. (3)since的句型: It is/has been+时间段+ since从句。若从句谓语为非延续性动词,表示“自从„„有多久”;若从句的谓语为延续性动词,表示“自从结束/完成„„起有多久”。 It is three years since the war broke out. It is three years since he lived here. 二. 地点状语从句 地点状语从句可用where, wherever, anywhere, everywhere等引导。地点状语从句可用于主句之前或之后。 Where
8、there is a will, there is a way.有志者,事竟成。 Wherever there is smoke, there is a fire. 无火不生烟(既无风不起浪)。 三. 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, seeing that, considering that等,每个连词的含义不尽相同。 considering that, seeing that, now that和since的意义相似,都有“鉴于某个事实”的意思,that可以省去。 Now
9、that/Since everybody is here, let's begin our meeting.既然大家都到了,我们就开始我们的会议。 四. 目的状语从句 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...”,引导的状语从句中需用情态动词;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。 I'll speak
10、slowly so that/In order that you can understand me. In order that you can understand me,I'll speak slowly 2.for fear that, in case与lest这些从属连词本身带有否定意义,意为“以免,以防”,相当于so that...not...或in order that...not... The boy hid himself behind the tree in case/for fear that his father should see him. Ta
11、ke your raincoat in case/lest it should rain. 五. 结果状语从句 1.引导结果状语从句的从属连词有: so...that...,such...that...。其结构形式为: Mike is so honest a worker that we all believe him. = Mike is such an honest worker that we all believe him. 六. 条件状语从句 常用引导词:if, unless, 特殊引导词:as/so long as,
12、 only if, providing/provided that, supposing that, in case that, on condition that We’ll start our project if the president agrees. 七. 让步状语从句 1.although/though, even though/if引导让步状语从句 although与though两者意思相同,一般可以互换,都可以与yet, still或nevertheless连用,但不能和but连用。 He is unhappy though/althou
13、gh he has a lot of money. 尽管他很有钱,但是他不幸福。 2.as引导让步状语从句 as从句一般放在主句之前,用倒装语序。从句中的表语或状语或动词原形置于句首。若表语是名词,前置时要省略冠词。 Child as he is, he knows a lot. 尽管他是孩子,他却懂得很多。 Much as I like it I won't buy it, for it's too expensive. 虽然我很喜欢,但我不会买的,因为它太贵了。 Try as he might, he could not find a job. 不管他怎样努力,他还是找不到工作。 3. 疑问词+ever, no matter+疑问词与whether...or... 引导让步状语从句 Whether you believe it or not, it is true. 无论你信不信,它是真的。 Whatever(= no matter what) you say, he won't believe you.无论你说什么,他不会信你。 Whoever (= no matter who you) you are, you must obey the rules. 无论你是谁,你必须服从这些规则。






