各非谓语动词之间的区别课件
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1 - to do2--ing3.done非谓语动词的分类厂不定式(to do);as a noun 动名词j、-\ Gs adj. or adv.现在分词、V-ed 过去分词*一个句子当中,已经存在一个主旬(谓语动词)•又没有连词的情况下,还有别的动词出现时,这些动词就充当了非谓语动词.、V-ed 过去分词*找出下列句子中的非谓语动词(含短语)XIUYUAN1 .Smoking is bad for health.2. His hobby is swimming.3. IHn^mll the girl singing in the classroom.4- The man talking with my father Is Mr. Wang.5- He decided to try again.非谓语动词的句法作用->考查非谓语动词作主语能作主语的非谓语动词有不定式和动名词。
二者的区别是:表示某一具体的动作时,多用不定式;表示比较抽象的一般行为倾向的,多用动名词。
动名词作主语时通常位于句首;不定式作主语时常置于句末,用it 作形式主语放在句首。
1)Smoking is prohibited(禁止)here.(抽象)2)It is not very good for you to smoke so much.(具体)3)Collecting information is very important to business men.4)Driving a car during the rush hour is tiring.❖lt+be+名词/形容词+to do❖lt+be+形容词for sb /of sb+to do❖It takes/took sb + 时间+to doIt is n ecessary t° spend佛© nd) eno ugh time on English if you want to learn it well.1). To make a plan first is a good idea.=It is a good idea to make a plan first.2). It takes three hours to walk there.It is possible for him to master the art of speaking. It was careless of him to break the coffee cup.=He was careless to break the coffee cup.2.动名词或不定式都可以在句中作主语■但在下列句型中常用动名词作主语。