优质实用教学课件精选——现在进行时微课课件.ppt

现在进行时的基本用法,现在进行时主要表示正在进行或发生的动作： （1）表示现在（表示说话人说话时）正在发生的事情，常与now, today, at present等时间状语连用。 I am standing beside the blackboard now. （2）表示当前一段时间内正在进行的动作（说话时不一定在进行），常与this week, this month, these days 等短语连用： We are writing a book this month.,现在进行时的形式,（1） I am reading a book. I am not reading a book. Are you reading a book? What are you doing? What are you reading?,现在进行时的形式,(2) He is cleaning the room. He is not cleaning the room. Is he cleaning the room? What is he cleaning? What is he doing?,现在进行时的形式,(3) Lucy is listening to music. Lucy is not listening to music. Is Lucy listening to music? What is Lucy doing? What is Lucy listening?,现在进行时的形式,(4) The girls are singing. The girls are not singing. Are the girls singing? What are the girls doing?,现在进行时的形式,(5) They are doing homework. They are not doing homework. Are they doing homework? What are they doing?,现在进行时的构成,be+动词ing (is/am/are+动词ing),现在进行时的动词拼写规则,(1) 大多数动词的-ing形式都是在动词原形后面加-ing： do-doing wait-waiting rain-raining speak-speaking,现在进行时的动词拼写规则,(2) 以-e结尾的动词去掉-e, 再加-ing: have-having give-giving come-coming shine-shining,现在进行时的动词拼写规则,（3）单音节动词，即由单（短）元音+单辅音构成的动词，双写词尾的辅音字母，再加-ing: (一辅重读闭音节，辅音字母要双写) run-running sit-sitting put-putting,现在进行时的动词拼写规则,（4）第二个音节重读的双音节动词，也要双写词尾的辅音字母，再加-ing: (一辅重读闭音节，辅音字母要双写) begin-beginning forget-forgetting 注意：第二个音节不重读的双音节动词和多音节动词，虽然也以一个元音字母加一个辅音字母结尾，但不双写最后一个辅音字母： listen -listening,现在进行时的动词拼写规则,（5）以-c 结尾的动词加-king: panic-panicking picnic-picnicking (6) 以-ie结尾的动词把ie变为-y: die-dying tie-tying,谢谢聆听 敬请指导！,