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北京地区高三英语语法 不定式 新课标 课件VIP免费

北京地区高三英语语法 不定式 新课标 课件北京地区高三英语语法 不定式 新课标 课件北京地区高三英语语法 不定式 新课标 课件北京地区高三英语语法 不定式 新课标 课件北京地区高三英语语法 不定式 新课标 课件
THE INFINITIVE(Senior Grammar)1. 不定式的形式不定式通常由不定式符号 “ to + 动词原形”构成,比如动词 write 的不定式就是 to write 。不定式也有时态和语态。例如 : 时态时态语态 语态 一般式一般式进行式进行式完成式完成式主动主动to doto doto be to be doingdoingto have to have donedone被动被动to be to be donedoneto have to have been donebeen doneeg.I have a lot of work to do.eg.She has no need to be worrying.eg.He is said to have left Shanghai.eg.The president was reported to have been flying across the Atlantic.2. 不定式的时态 :3. 不定式的语态:The matter to be discussed at the meeting is a hard nut to crack.They were all waiting for the gate to be opened.He is sure to have been taught by a good musician.I’m sorry for the article not to have been finished in time.不定式常常带有自己的宾语,宾语 + 宾语补足语或状语,带有这些成分的不定式统称为“不定式结构”。3. 不定式结构eg.He began to study Russian.eg.He wanted to send me a gift.eg.He began to feel sad.It continued to rain heavily.He decided to live in the countryside.4. 不定式的否定形式不定式的否定形式通常是在不定式符号之前加 not, never 等否定词。We decided not to buy the house.She wished never to see them again.She was told not to be worrying any more.I understand him not to have left here. 5. 不定式结构的句法功能不定式结构在句中可以作主语,宾语,补语,表语,定语和状语。⑴As the subject:eg.To give good service is our duty.eg.To clean the room once a week is necessary.eg.To develop agriculture is very important.eg.To meet you is a great pleasure.不定式作主语通常的用法是在主语的位置上放个“ it”, 而把作主语的不定式结构后置。因此,以上四个句子可以分别改为:It is our duty to give good service.It is necessary to clean the room once a week.It is very important to develop agriculture.It is a great pleasur...

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北京地区高三英语语法 不定式 新课标 课件

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