文档介绍：初三英语语法主要句式知识点 1--4
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1 一）知识概要
初中所学的句型一般要分为陈述句、疑问句、祈使句和感叹句。 ？陈述句中有肯定句与否定
句之分。其中可以分为以下五种：
① 主语+不及物动词。如：I arrived 宾语，如： I knew that he was a good man? 这时宾语从句的连接词有
that, (that只在从句中起联接作用，不在句中充当语法成分，既不是主语也不是宾语，所
以在 口语中常常被省略。如： I am sure (that) she has passed the exam?
② if, whether它们在宾语从句中只起连接作用， 不起语法作用，当作是否讲。从句中有or not 结构时，要用 whether, 女口： I ask him if (whether) he has had his lunch? I asks him whether he has had his lunch or not?
③ what它在宾语从句中除了作连接词外，还要作主语或宾语成份，如： I don't
understand what you said? (what 作 said 的宾语)。又如： I asked him what made
him sick (what在宾语从句中作主语 )。
④ who,它也和what 一样，在句中除作连接词外，可以充当句中的成份，如： I know who
she is look ing for?
⑤ whose 女口： I want to know whose book t his is?
⑥ which 女口： Do you know which book is mine??
在连接词中还有4个常用的连接副词，
① how 它的应用最广，如： how much, how many, how long, how soon, how ol d …。
女口： How much does it cost?
② whe n 它只是连接时间状语，如： Please tell me whe n the meet ing will begi n?
③ where它连接地点状语，如： Where are you from?
④ why它要连接的是原因状语从句，如： The teacher asked why Tom did n't come to
school.
3 在考试中常见到的考点是： ？宾语从句的时态与主句时态的呼应问题。
① 主句谓语动词如果是现在时或将来时， 宾语从句的时态可以是任何所需要的时态， 女口：
I know he did n't come. 我知道他没来。 I know he will come tomorrow? 我知道他明天
来。I kn ow he has gone to Lon do n? 我知道他已去伦敦了。
② 主句中的谓语动词若是过去时，宾语从句也要用过去时态中的某一种。比如： 一般过
去时，过去进行时，过去将来时，过去完成时。除了在表达宇宙中的客观真理时，不能用现
在时态。如： I wan ted to know whe n he would come? The teach