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副词性从句即状语从句，一个句子做了副词的作用就叫副词性从句。
1、什么叫副词？
修饰动词、形容词和装个句子的可有可无的成分叫做副词。可以删掉，且删掉句子依然完整。
具体表现为说明地点、时间、原因、目的、结果、条件、方向、程度、方式和伴随状况等
I love you deeply.（深深地，修饰动词love，说明程度）
You are beautiful enough.（足够，修饰形容词beautiful，说明程度）
I have breakfast every day.（每天，修饰整个句子I have breakfast，说明频率）
He went there yesterday.(那里+昨天，说明地点+ 时间)
he went是主谓结构，句子结构完整，there yesterday都是副词说明地点和时间。前面的文章多次学习过这个句型。比如 I go to school/ I go to Hong Kong 都是介词短语做副词，to+名词一定是介词短语，介词短语通常做状语，也就是副词性的。
It suddenlyrained. (突然，方式)
I oftenread English loudly in the morning. (经常+大声地+早上，频率+程度+时间）
I seldomgo to the movies. (频率)
2、副词性从句
一个句子做了副词的作用就叫副词性从句。
| love you.主干
| love you very much.副词
| love you as a mouse loves rice. 连词as+完整的句子=副词。
含有副词性从句的句子结构：完整句子1+连词+完整句子2。句子的主干有可能是句子1，也有可能是句子2.
3、副词性从句的9种类型
具体属于哪种类型的副词性从句，主要取决于连词。这些类型不需要强记，看一下有个大概的印象即可。
时间：After I finish my homework,I will play games with you.
地点：You should have put the book where you found it
原因：I didn"t come to work because I was ill
目的：He looked downso that she could not see his eyes
条件：If plastics are burned,they give off poisonous gases.
结果：I didn"t sleep well last night,so I feel sleepy this morning
比较: You look younger than you are.此处 you are 不是完整句子，实际上是you are young，英语中同一个单词出现两遍往往会被省略，所以次数young被省略。
让步: Although he studied hard,he didn"t pass the examination.
方式: You must try to hold the tool as I do
4、两个特殊句型
Hardlyhad he reached the school gate when the bell rang.
l had no sooner arrived home thanit began to rain.
这是两个固定搭配，翻译为一...就...，记住即可，平时很少用到。
小结:
时间状语连词在英文中特别重要。
1.常见的简单时间状语连词:
when/while/asbefore/after/since/till/until/
2.翻译为“—...就...”系列:
as soon as/(the moment/minute/second)/once/hardly...when/no soone...than/
3. Time系列:
every time/each time/next time/the last time/the first time/by the time
本文如果对你有帮助，请点赞收藏《10分钟英语语法之副词性从句》，同时在此感谢原作者。
