中考英语复习课件动词分类二.ppt

手，脑，口，眼并用哦 动词分类（第二课时） 情态动词 一.情态动词的特征（T/F） 1.情态动词能单独作谓语。（ ） 2.情态动词无人称和数的变化.（ ） We must stay here today. He must stay here today. 例外：He has to walk home. 3.有些情态动词的过去时与其原形相同， 有些与原形不同.( ) She said she could sing this song when she was five. She said she must finish washing the dishes before the boss came back. 4.情态动词后接动词原形。（ ）She may lose her way. 5.情态动词具有助动词作用，可用来构成疑问句， 否定句及用于简明答语。( ) Can you sing an English song? Yes, I can. But he can’t. F F T T T 二.情态动词的用法 1．can与could 1）． can （1）表示体力或脑力方面的“能力”，也能表示根据客观条件能做某事的“能力”。 He can drive. ________ you jump as far as he did? （2）表示允许,可以： You can go now. Can I use your bike? （3）表示推测（只用于疑问句及否定句中）： Who____ it be? It can’t be true. 2）． could （1）can的过去式，表示过去有能力及过去的可能性。 He couldn’t climb up the mountain. The news ______ be true. （2）表示客气地请求或委婉地陈述意见。 Could you go skating with me tomorrow? I’m afraid I couldn’t give you an answer tonight. （3）表示惊异、怀疑、不相信等态度 How could he say that? Can can couldn’t 2．may与might 1）． may （1）表示请求、许可、可以 —May I use your dictionary? （2）表示推测，猜测，认为某一事情“或许”或“可能”发生。 It may rain this afternoon. I ______ leave for Hangzhou next week. （3）may用于感叹句中可以表示祝愿或愿望。 May you do well! May you have a good time! 2)． might （1）用作may的过去式。 We didn’t know that he______ _____ our new teacher. （2）主要用于推测（但其可能性比may更低）。 I’m afraid it might snow tomorrow. may might be 3．must （1）．表示义务，命令或必须。 Soldiers must obey orders. We ______ ____ strict with ourselves. （2）．表示肯定的推测：一定 He_______ ____ at home.（对现在的猜测） I think you must have made a mistake. （对过去的猜测:肯定已经） must be must be 4．will与would 1）． will （1）表示意愿、决心。此时可用于各种人称。 He won’t come to see you.他不愿来见你。（表示意愿） I will try my best to catch up with her.我将尽最大努力赶上她。 （表示决心） （2）表示请求，此时仅限于“Will you (please)…？”句型中。 Will you please buy me an English-Chine