• Since you can’t answer the question , you can ask someone for help.
四 目的状语从句
• （1）由 so that ,in order that 等引导， 谓语中常有 may,might,can,could,will,would等情态动 词。
graduated from Beijing University. • It is 10 years since I began to study
English.
二：条件状语从句
• （1）主将从现 • I’ll visit the Great Wall , if it doesn’t
rain tomorrow . • (2)if引导的条件状从所表示的前提或条件将
来可以实现 • 主将从现在完成时\进行时 • We will give you a good price if you are
thinking of buying it.
• (3)祈使句+and\or引导的结果状从，祈使 句在意义上 一个条件条件状从
• Use your head , and you’ll find a way.
• She is such a lovely girl that we love her very much.
• She is so lovely girl that we love her very much.
• We have so much time that we can finish the work very well.
1 The meeting didn't start___ everyone was there. A. because B. until C. why D. if
2 The boy ___ to bed ___ his mother came in. A. went not; until B. didn't go; after
• 当名词前面有many和much修饰时，用so 而不用such
• （2)so …that 的否定形式可与 too…to not…enough to替换。
• He is so young that he can’t go to school.
• =He is too young to go to school.
• He worked day and night in order to succeed.
五 结果状语从句
• (1) so…that,such…that • so +adj\adv+that • so+adj+a\an+单数名词+that • Such +a\an +adj+单数名词+that • Such +adj+复数名词+that • Such +adj+不可数数名词+that
状语从句的构成
• 简单句+并列连词+简单句
状语从句的分类
时间状语从句 When I got home, Peter is cooking.
条件状 we can change the world.
让步状语从句
Although the world is full of suffering, they can always be overcome.
• I didn’t go to bed until I finished my homework.
（4） since自…以来
• 主句用一般现在时或现在完成时，从句用一 般过去时
• It has been…+since 从句 • It is been…+since 从句 • I have worked in this school since I
英语语法
状语从句
一、概念
• 1.定义：在主从复合句中，用于修饰主句中动词、形容词 或副词的句子，叫状语从句。
• 2.类型：状语从句按其在句中的作用分为：时间、地点、 原因、目的、结果、条件、方式、让步、比较状语从句九 类。
• 3.位置：由从属连词引导，可位于主句前，亦可位于主句 后。 位于句首时，用逗号与其后的主句隔开。
• (2)when 主句和从句动作同时发生 • before 之前 • after 之后 • as 并行发生，不分先后
• （3）until\till 引导的时间状语从句
• A 动词是延续性动词，主句为肯定
• I‘ll wait for you till you come to see me.
• B 动词是非延续性动词 not…until
• He must get up early so that he can catch the first bus.
• in order that+从句 • in order that+动词
• He worked day and night in order that he could succeed.
原因状语从句
People with goals succeed because they know where they are going.
方式状语从句 地点状语从句 目的状语从句 结果状语从句
比较状语从句
一.时间状语从句
• （1）主将从现 • I‘ll ring up as soon as I get to Beijing.
• =If you use your head, you’ll find a way.
三 原因状语从句
•1 • because since as(语气由高到低)引导 • why的提问用because回答
• Why are you late? • Because I’m ill.
•2 • since 用在人们已知道的实施“既然”
• =He is not old enough to go to school.
六 让步状语从句
• though • although
七 比较从句
• than as
八 方式状语从句
• as, like as though , the way
九 地点状语从句
• where, wherever, everywhere