语法课件：状语从句

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

【例11】 A good storyteller must be able to hold his listeners' curiosity ________ he reaches the end of the
story.
A．until B．unless C．when D．after
答案 A
注：not...until可用于强调句或倒装句中。 如：I didn't know it until he came back.→ ①It was not until he came back that I knew it.[强调句] ②Not until he came back did I know it.[倒装句]
【例1】 ________ the days went on，the weather got worse. A．With B．Since C．While D．As 答案 D 【例2】 ________ you are at home alone，please don't leave the door open. A．Until B．While C．Before D．As 答案 B
到齐了，现在开始。
结果状语 so that, so...that,
从句
such...that
He was so excited that he jumped from the sofa. 他如此激动以至于他从沙发上跳了下来。
续表
状语从句 目的状语 从句
让步状语 从句
比较状语 从句
方式状语 从句
引导词
her.
A．first time
B．for the first time
C．the first time

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.

• 3）than 意为“比……更……”； • The boy is taller_than_his_father. (比他的父
亲还高)
4）比较状语从句通常与倍数表达法结合起来运用。
①A +is…times +as+ adj.原级+as +B ②A +is…times+ adj.比较级+than +B ③A +is…times+ the size/length/height/width/depth +of + B ④The size/length/height/width/depth… +of+ A+ is…times of +B
where引导 A句+where+B句 在B句…地方, A句… 在环境污染严重的地方，许多珍稀物种处于灭 绝的边缘。
Many rare animals are on the verge of extinction where environmental pollution is serious.
三、条件状语从句 1. If引导的条件句 2. Unless 3. Once 4. As long as
• 这个数据在下降到1990年的20%之前，它先上 升到1980年的80%
• Before the figure jumped to 20% in 1990, it increased to 80% in 1980.
• 5. A句+since+B句/时间短语 【自从B句…,A句就…】
自从手机发明以来，人们的生活发生了巨大变化。
五、目的状语从句
A句+in order that+B句 A句+so that+B句 【A句…是为了B句…】