剑桥KET语法全概括（11）条件状语从句+something/anything/nothing/everything..

1. 条件状语从句

• 条件状语从句，指在某种条件下会发生的事，比如：If I go to school tomorrow, I will meet him.（如果我明天上学，我会见到他。）或者：I will meet him if I go to school tomorrow.

• 条件状语从句的语法形式是：条件从句用一般现在时：If I go to school tomorrow主句，也就是条件满足时会发生的事用将来时：I will meet him.

• 常见错误：很多考生习惯于将条件从句也写成将来时，一定要注意，条件从句要用一般现在时。比较：If it snows tomorrow, I won't go to the party.（条件从句用一般现在时，正确）If it will snow tomorrow, I won't go to the party.（条件从句用将来时，错误）

2. something/anything/nothing/everything等等

• something: 某事，某件东西，用于肯定句He looks ill. Something is wrong with him.（他看起来病了，他一定出了什么事情）

• someone/sombody：某人，用于肯定句We need to leave someone at home.（我们需要在家里留个人）

• anything：某事，某件东西，用于否定句和疑问句Is there anything I can do for you?（我能为你做什么吗）

• anyone/anybody：某人，用于否定句和疑问句Can anybody come and help me?（有没有人能帮我一下）

• nothing：没有事情，没有东西There is nothing you can do.（你什么都干不了）

• no one/nobody：没人Noboday knows he was here.（没人知道他来过这）

• 注意：nothing/no one/nobody已经是否定了，所以我们不把它们跟not放在一起使用。比较：There is nobody home.（家里没人）There is not nobody home.（错误）

• not...anything=nothing，比较：I do not have anything = I have nothingnot...anyone/anybody = no one/nobodyI don't know anyone in this room = I know no one in this room

• everything：每一件事，每个东西Everthing in this room is so beautiful.（房间里的每样东西都那么漂亮）

• everyone/everybody：每个人Everyone is having a great time.（每个人都很开心）

• 使用以上所有词时，都要用第三人称单数：No one wants to speak to him.Somebody has to do something to stop him.

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