Unit 6 Healthy diet第 3 课时 单元语法讲解栏目导航巩 固 习 题宾语从句:简单地说,用句子充当宾语,叫做宾语从句。下面,我们将从引导词、语序和时态三个方面来讲解宾语从句。 1.引导词:宾语从句的引导词有三种。 (1)连词:that 引导陈述句,常可省略;whether/if 引导一般疑问句,whether还可以引导选择疑问句或与 or not 连用。例如: I believe that our team will win the basketball match. 我相信我们队会赢得这场篮球赛。 She asked me if she could borrow my book. 她问我是否可以借一下我的书。 (2)代词:who、whom、whose、what 和 which。例如: The children didn’t know who the stranger was.孩子们不知道那个陌生人是谁。 Do you know which one is the right answer? 你知道哪个是正确答案吗? (3)副词:when、where、how、why、how many、how often 等。例如: He is wondering when he can finish this difficult job. 他想知道什么时候能完成这项艰难的工作。 The teacher asked us how many students there were in the classroom.老师问我们教室里面有多少人。 2.语序:宾语从句必须用陈述语序。 She said that she would fly to Beijing in a week. 她说她一周之后将飞赴北京。 Could you tell me when the train will leave? 你能告诉我火车什么时候开动吗? 特别地,对于疑问词作主语的特殊疑问句,其本身就是陈述语序。例如: What’s wrong with you?(特殊疑问句) Nobody knows what’s the matter with you.(what 引导宾语从句) 3.时态:宾语从句的时态与主句时态保持一致,具体来讲,可以分成以下几种情况: (1)当主句是一般现在时,一般将来时或祈使句时,从句不受主句的限制,根据自身的需要选用相应的时态。例如: Do you know if/whether he has seen the film? 你知道他是否看过这部电影吗? (2)当主句是一般过去时,从句要用过去时的相应时态。例如: I didn’t know if/whether he had seen the film. 我不知道他是否看过这部电影。 注意:当主句是一般过去时,而从句表示的是客观真理,自然现象,科学原理,格言等,从句仍然要用一般现在时。例如: He said that the Earth moves round the Sun. 他说地球绕着太阳转。...