whether/ if 及疑问词引导的宾语从句 上一个模块中我们学习了 that 引导的宾语从句，本模块我们学习 whether / if 引导的宾语从句和疑问词引导的宾语从句。 一、 whether / if引导的宾语从句 当一般疑问句充当句中的宾语时，用连词 whether 或 if 引导，连词在从句中 不充当任何句子成分，意为 “是否”，不可省略。当宾语从句中没有 or not 时， whether和 if 都能用；但当宾语从句中有 or not时，只能用 whether。另外，充当 宾语从句的一般疑问句要变为陈述句语序。如： Will she go to Beijing tomorrow? I don 't know. → I don ' t know if / whether she will go to Beijing tomorrow. Will David move to our city or not? She asked. → She asked whether David will move to our city or not. 二、疑问词引导的宾语从句 当特殊疑问句充当句中的宾语时，由原来的疑问代词 what, who, which 等或 疑问副词 when, where, how, why 等作为连接词，这些词在宾语从句中充当一定的 句子成分，都有各自的词义，不可省略。另外，充当宾语从句的特殊疑问句要变 为陈述句语序。如： What is his sister going to do? I ask Jack. → I ask Jack what his sister is going to do. When did she arrive in Beijing? I want to know. → I want to know when shea rrived in Beijing. Where did you buy the beautiful scarf? Could you tell me? → Could you tell me where you bought the beautiful scarf? 三、 whether / if及疑问词引导的宾语从句的时态 我们在使用这两类从句的过程中，当主句的谓语动词是一般现在时的时候， 宾语从句的谓语动词可根据需要使用适当的时态； 当主句的谓语动词是一般过去 时的时候， 宾语从句的谓语动词常用相应的过去时态； 但当宾语从句表述的是客 观真理时，不管主句的谓语动词是何种时态，该从句须用一般现在时。如： I want to know whether / if your brother went to the zoo yesterday. Susan asks whether / if she can go to the schooflt ear eight o ' clock. He asked me what I was doing at that time. The little boy asked whether / if all the planets go around the sun. 【运用】将下列汉语句子翻译成英语。 1. 托尼问我住在哪儿。 2. 我想知道他明天会去游泳还是不会。 3. 我想知道他姐姐是不是英语老师。 答案 【运用】 1. Tony asks where I live. 2. I want to know whether he ' ll go swimming tomorrow or not. 3. I want to know if / whether his sister is an English teacher. 本文来源：https://www.wddqw.com/doc/f7dccb2aa5c30c22590102020740be1e650eccba.html