宾语从句1 、定义：在复合句中起宾语作用的从句，称为宾 语从句。2 、宾语从句的引导词：（ 1 ）当宾语从句是陈述句时，用 that 引导。（ that 通常可以省略）I think (that) robots will help people work out the problem. 我想机器人会帮助人们解决这个问题。（ 2 ）当宾语从句是一般疑问句时，用 whether,if 引导。We don’t know whether he is right or not.We don’t know if he is right. 我们不知道他对不对。（ 3 ）当宾语从句是特殊疑问句时，用 what,who,where,when,how,why,which,whose 等特殊疑问词引导。I don’t understand what he said.Please tell me who he is.I want to know where you are.I don’t know when he will come back.Can you tell me how I can study English. I don’t know why he is angry.Can you tell me which you want to buy.He asked me whose book it was.3 、宾语从句的语序 无论主句是陈述句还是疑问句，宾语从句都要用陈述语序。 We don’t know where he lives. 主句 宾语从句 Do you Know where he lives. 主句 宾语从句3 、宾语从句的时态在宾语从句中，谓语动词的时态要和主句中谓语动词的时态保持一致，其一般规律为：（ 1 ）主句中的谓语动词如果是一般现在时，从句中的谓语动词可以用任何时态。（ 2 ）主句中的谓语动词如果是一般过去时，从句中的谓语动词要用相对应的过去时态。（ 3 ）如果从句所说的是客观真理或事实，从句中的谓语动词则要用一般现在时。（ 1 ）主句中的谓语动词如果是一般现在时，从句中的谓语动词可以用任何时态。 I believe he is a student. I want to know what he is doing. I think he was wrong. I want to know what he was doing. He says he has learned 2000 words.（ 2 ）主句中的谓语动词如果是一般过去时，从句中的谓语动词要用相对应的过去时态。He asked me where I went yesterday.He wanted to know what I was doing yesterday.She said she would go to Beijing.（ 3 ）如果从句所说的是客观真理或事实，从句中的谓语动词则要用一般现在时。 Miss Liang said the earth goes round the sun. Mr. Lan told us that the sun rises in t...
