高中英语语法之状语从句ppt课件

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： 1.Whether you like it or not, you’ll have to do it. 2. We hold that all countries, (whether they are) big or small, (whether they are) rich or poor, should be equal. 3. Whether it rains or snows, I will go tonight. 5. She had to go, whether or not she wanted it.
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.
4) as soon as, immediately, directly, instantly 等副词也可引 导状语从句。表示“一…… 就……”。
.
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

• Difficulties are nothing if we are not afraid of them.如果我们不怕困难，困难就算不了什 么了。
• We shall go there tomorrow unless it rains. = We shall go there tomorrow if it doesn’t rain. 除非下雨，我们明天就去那里。
• Every time I travelled by boat, I got seasick.我 每次乘船都晕船。
• The moment I heard the song, I felt cheerful. 我一听到这首歌，就感到很愉快。
• Next time you come ,you’ll see him.下次你来 的时候，就会见到他。
• We were not tired though (although) we had worked all day.虽然我们干了一天活，但并 不累。
• （2）even if, even though（even if 和even though的意思为“即使”“纵使”有退一步 设想的意味，多用于书面语中）。
• 5、结果状语从句：
• （1）so that，so…that（so that前有逗号为 结果状语从句，so…that的so后面跟形容词 或副词）。
• We turned up the radio, so that everyone heard the news.我们把收音机的音量放大， 大家都听到了新闻。
• Seeing (that) he was badly ill, we sent for the doctor.鉴于他病情严重，我们派人去请医生 去了。

keep it clean.
• * in case(万一） • Send us a message in case you have any
difficulty.
• *on condition that（？） • We’ll let you use the room on condition
that you keep it tidy.
• for 解释说明 • He must be ill, _______.(因为他今天没来)
三 条件状语从句 conditional adverbial clause
if,unless,so/as long as, in case on condition that, provided that,providing that,suppose that, supposing that
if If you work harder,you will succeed.
unless :if... not 除非 • Unless he comes, we won’t be able to go. • If he doesn’t come,we won’t be able to go.
• * as/so long as(只要 ) • You may borrow the book as long as you
2. while“尽管，虽然”，相当于although
3. while意为“而，却”，表示对比。 Jane was dressed in brown while Mary was dressed in blue.
as的用法
1. “一边…一边”； “随着” She was doing her homework as she was listening to the music.

child, I often played in the park.”（当我还是个孩子的时候，我经常
在公园里玩。）
02
从句时态先于主句
有时从句的时态会先于主句，表示从句中的动作发生在主句动作之前，
如“After he finished his work, he went home.”（他完成工作后就
结果状语从句的谓语动作可以与主句 的谓语动作同时发生，也可以在其后 发生。
结果状语从句的谓语动作可以是已完 成的，也可以是未完成的。
结果状语从句的省略与倒装
01
当结果状语从句的主语与主句主 语一致，且从句谓语包含be动词 时，可以省略从句的主语和be动 词。
02
在某些情况下，为了强调或保持 句子平衡，结果状语从句可以采 用倒装语序。
作用
使句子表达更加完整、准确，增强语 言的逻辑性和连贯性。
状语从句的构成
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02
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引导词
引导状语从句的词有 when、where、because 、if、although等。
主语和谓语
从句中通常包含主语和谓 语，构成完整的句子结构 。
时态和语态
根据主句的时态和语态， 从句的时态和语态也会相 应变化。
倒装
有时为了强调或保持句子的平衡，可以将时间状语 从句中的部分成分倒装，如“Only when he arrived did we start the meeting.”（只有当他 到达时，我们才开始会议。）
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地点状语从句
Chapter
表示地点的连词
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where：在...地方
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03
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wherever：无论在哪里
倒装