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《Grammar》新课标PPT课件优质课下载
Grammar 1
Infinitive
Infinitive
1)What is infinitive?
2)How to use infinitive?
3)How many forms does infinitive have?
4)Some special usages of infinitive?
1)What is infinitive?
动词不定式属于非谓语动词。在英语中，不能做句子的谓语，而是担任其他语法功能的动词，叫非谓语动词。非谓语动词有3种：动词不定式、动名词和分词。本部分我们学习动词不定式。它除了不能作谓语外，在句中可以充当任何成分，可以作主语、表语、宾语、补语、定语和状语。
2)How to use infinitive?
Some Examples
In the following sentences, there are two verbs in every sentence, for example ,in the first sentence, we have two verbs, one is “seem”the other is “to know”,they happen at the same time. Now you read the other sentences to find the two verbs in each sentence and tell which verb happens first or do they happen at the same time?
1)He seems to know everything in the world.
2)I wish to go to the moon.
3)He seems to be looking for something over there.
4)He seems to have been to Egypt. He has some photos with pyramids behind himself.
5)The bridge is said to be built next year.
6)The book is reported to have been translated in several foreign languages.
形式
时间概念
语态
例句
to do
与主动词同时发生或发生在主动词之后
主动语态