高中英语《不定式》教学课件(共31张PPT)

本节课重点提要1.不定式的基本形式和否定形式2.不定式的时态和语态3.不定式的基本用法不定式的基本形式:to+动词原形”否定形式:not to do基本形式和否定形式He advised me to give up the plan.He advised me _____________ the plan.His ambition is to be a film star.His ambition is _________ a film star.not to give upnot to be动词不定式的时态和语态1. I opened the door ________ (enter) the room.2. Mr. Smith is going to attend the meeting ___________ (hold) tomorrow.（一）.一般式( to do /to be done).to enterto be held一般式表示与谓语的动作几乎同时发生或在谓语动作之后。㈡.进行式( to be doing)1. The boy pretended _____________ (read) the book when his mother entered the room.to be reading在谓语动词发生的同时,不定式的动作也正在进行。2. He is said ____________ (study) abroad now.to be studying㈢.完成式（to have done/to have been done)2.I’m pleased __________________ (give) this chance so that I have realized my dream.1. He is said _______________ (study) abroad before.to have studiedto have been given完成式表示动作发生在谓语动作之前