高中英语状语从句课件

since, before, after。 I would like to invite you to do several exercise before coming to our key points.
4) as soon as, immediately, directly, instantly 等副词也可引 导状语从句。表示“一…… 就……”。

表语的倒装：（这时不可在状语之前加very, much等修饰语） Child as he is, he know o lot.
while



while引导的让步状语从句： while (= although),它引导的让步状语从 句只能前置，位于句首，如： While you may be right, I can’t altogether agree. While I admit that the problems are difficult, I don’t agree that they cannot be solved
状语从句
主讲人：贺瑞梅
What are “ Adverbial Clauses”?
在主从复合句中修饰主语中的 动词、 形容词、副词等的从句叫做 “状语从句”。分类如下：
1. 时间状语从句
2. 地点状语从句
3. 原因状语从句 4. 条件状语从句
状语从句
5. 让步状语从句
6. 目的状语从句
7. 结果状语从句
1.
3. 原因状语从句
原因状语从句表示主句中的某一动作 或状态所发生的原因。引导这种从句 常用的连接词是：because, since, as, for, now that 及 considering等。 e.g. He didn’t come to school because he was ill. 表示“直接”原因。 c.f. He might be ill, for he didn’t come to school. 表示“间接的推断”原因.
2) 一些表示时间的名词词组也可引
导时间状语从句。如：the moment, the minute, （一…就）next time （下次）, every/each time （每 次）。 e.g. The moment he comes, I will tell him.
3).介词也可以引导状语从句。如
.
1. I was so familiar with him that I recognized his voice ______ I picked up the phone. A. while B. after C. In case D. the minute 2. How long do you think it will take _______ our product becomes popular with the consumers? A. when B. until C. before D. since
As soon as I reach home, I will tell him the news.



5) a. hardly … when b. scarcely … when / before c. no sooner … than 都相当于as soon as，用以引导时间状语从 句。注意：当 hardly, scarcely及no sooner 位于句首时,从句中的主谓要倒装。 e.g. No sooner had she gone than it happened
e.g. a. We’ll come over to see you on Saturday if we have time.
b. We should serve the people as / so long as we live.
1. We will be able to get there on time, _____ our car doesn’t break down on the road. A. as soon as B. as far as C. as long as D. as well as 2. In time of serious accidents, _____ we know some basic things about first aid, we can save lives. A. whether B. until C. if D. unles装：（这时不可在状语之前加very, much等修饰语） Much as I admire him as a writer, I do not like him as a man. Much as he likes the bike, he doesn’t want to buy it. Hard as I studied, I could not catch up with them.
2. 地点状语从句
地点状语从句用连接副词 where或 wherever (在任何地方) 引导。 e.g. a. Just stay where you are.
b. Wherever you go, I’ll be right here waiting for you.
When he reads a book, his habit is to make a mark _______ the meaning is unclear to him. A. there B. wherever C. the place D. in which 2. If you are travelling ______ the customs are totally different from your own, you may feel a cultural shock. A. in the place B. which C. in which D. where
8. 方式状语从句
9. 比较状语从句
1. 时间状语从句
1) 常用连词如下：as,
when, while, till / until, not …till / until, before, since, after等。
e.g. I won’t know where he is until I get a letter from him. Till 只能用 于肯定句中，until既可以用于肯定 句，也可以用于否定句。
5. 让步状语从句
在复合句中表示让步概念的状语从句 被称为让步状语从句。通常由下列词 语引导：though, although, even if, even though, while, no matter who/… , however ，as等。 让步状语从句可以位于主句前、后， 有时插在主句中间。
Though/although
Though / Although he was old, he worked hard. = He was old but he worked hard. 注意一个典型的中国错误： though / although 切不可与but连用。
as




谓语动词的倒装： Try as he would, he could not remember a word of it. (= No matter how he would try …) Try as he might, he didn’t pass the exam. Hate him as we may, we must admit his greatness. Search as they would, they could find nothing in the room. Try as you may, you will never succeed
It’s/will
be +一段时间 before+一 般现在时 表示过了多久才 It’s/will （not) be +一段时间 before+一般现在时 表示没过多久 就 it ’s been+一段时间 since +一般过 去时
It
will be a long time before we meet again. It has been 20 years since we first saw each other.
whether…or…







whether…or…引导的让步状语从句： △ 这种从句也称“选择条件-让步状语从句”，可位于 主句之前或之后，如： Whether he drives or (whether he) flies, he will be here on time. Whether you like it or not, you’ll have to do it. Whether or not it rains, I’m giving a party tomorrow. We hold that all countries, (whether they are) big or small, (whether they are) rich or poor, should be equal. Whether it rains or snows, I will go tonight. She had to go, whether or not she wanted it.
3. ______ you have tried it, you can’t imagine how pleasant it is. A. Unless B. Because C. Although D. When 4. The official soon realized that, ______, things would get worse. unless dealt with properly if not properly dealing with it unless properly dealt with if dealt not properly with
3. ______ the day went on, the weather got worse. A. With B. since C. As D. While 4. He was halfway through his meal ____ a familiar voice came to his ears. A. why B. where C. when D. while 5. Hardly ______ into the village ______ it began to rain. A. we had got; when B. we got; than C. had we got; when D. did we get; than
不可出现在句首。
Jenny was very sad over the loss of the photos she had shot at Canada, ______ this was a memory she especially treasured. A. as B. if C. when D. where 2. Some people believe that ______ oil is running out, the fate of the motor industry is uncertain. A. / B. though C. for D. since
1.
4. 条件状语从句
条件状语从句表示主句中的某一 动作或状态是在什么情况或条件下发 生的。条件状语从句中通常用一般现 在时表示将来。 条件状语从句由从属连词引导：if, unless (除非), as / so long as (只要), on condition (只要), in case (假使) , providing / provided (that), supposing （that）（假若，倘使），on condition that(条件是） 等。