Unit2PoemsSectionⅣGrammarWriting课件（新人教选修6）.ppt

Section Ⅳ　Grammar Writing ;虚拟语气(Ⅱ) ;一、主语从句中的虚拟语气 1．“It is important (necessary，strange，natural，a pity等)＋that从句”句型中，从句的谓语动词常用should＋动词原形，should可以省略。 It is important that every member (should) inform himself of these rules.重要的是每个成员都知道这些规则。 It is necessary that he (should) come to our meeting tomorrow. 他参加明天的会议是必要的。;2．It will be desired (suggested，decided，ordered，requested，proposed，etc.) that... It is suggested that we (should) hold a meeting next week. 有人建议下周我们应该举行会议。 It is required that the students (should) learn a foreign language. 学生们被要求必须学一门外语。;二、表语从句和同位语从句中的虚拟语气 作表示建议、要求、命令等的名词如advice，idea，order，demand，plan，proposal，suggestion，request等的表语从句和同位语从句，从句中的谓语动词用“(should)＋动词原形”。 My advice is that we (should) get more people to attend the conference. 我的建议是我们应该让更多的人参加会议。 I have made a proposal that we (should) hold a meeting next week. 我建议我们下周应该举行会议。;三、隐含条件的虚拟条件句 1．用without，with，but for等介词所引起的介词短语来表示隐含的条件。 But for your help，we couldn’t have finished the work on time. 如果没有你的帮助，我们就不可能按时完成工作。 Without water，there would be no life. 如果没有水，就没有生命。;2．用连词or，otherwise，but，however等表示隐含的条件。 She would have come here，but she was too busy with her homework. 她本来早就要到这里来，但是她当时太忙于做作业了。 He was very busy yesterday，otherwise he would have come to the party.他昨天太忙了，否则的话，他就会来参加聚会了。 3．通过分词短语表示隐含的条件。 Supposing it should rain，we would still go. 假如下雨的话，我们还是要去。;四、as if/as though从句以及if only后的句子常用虚拟语气;He treats the little girl as if she were his own daughter. 他对待这个小女孩就像她是自己的亲生女儿一样。 He talked as if he had known the secret. 他谈起话来好像他已经知道了这个秘密。 If only I would be admitted into Beijing University next year! 我要是明年被北京大学录取就好了！ 注意：as if/as though如果有明显的迹象表示“有可能实现的事实”时，不用虚拟语气。 It is so cloudy.It looks as if it is going to rain. 阴天，似乎要下雨。;五、It’s (high/about) time后的从句用虚拟语气 从句谓语动词常用过去时，也可用should＋动词原形，should不能省略。 It’s time (that) we had a meeting to talk about the problem. 该开个会讨论一下这个问题了。 It’s time (that) he went to bed，but he is still watching TV. 该是他去睡觉的时候了，可他仍然在看电视。;六、在If it were not (had not been) for...句型中的虚拟语气 I