朗文英语Welcome-to-English-1B-Unit-4-教学课件.ppt--（课件中不含音视频）

1、 Walking Walkingwordswordseateatsleepsleepfighfight thophoprunrunswimswimWhat are they doing?现在进行时定义：现在进行时表示现在正在进行或发生的动作。结构：主主语语bebe动动词词v ving现在进行时的变化规则1.1.直接加直接加ing.ing.如：play+ingplaying.sing+ingsinging.2.去掉不发音的去掉不发音的e+ing.如：write去e+ingwriting3.重读闭音节，以辅音字母重读闭音节，以辅音字母+元音字母元音字母+辅音辅音字母结尾的词，要双写尾字母再加字母结

2、尾的词，要双写尾字母再加ing。如：run+n+ingrunning.辅元辅辅元辅给小鸡找妈妈给小鸡找妈妈danceswimsing+ing双写+ing去e+ingHeplayfootball.isingShe is read inga book.I amrun ning.Listen!The birdis sing ing.They watch TV.areingThe man runisning.The boy swimisming.The teacher writeising.They danceareing.Lets play a Lets play a game:game:Who i

3、s the guessing champion?Who is the guessing champion?Are they+v-ing?Is it/he/she+v-ing?What are they doing now?What are they doing now?What is the cat doing?What is the cat doing?What is the cat doing?What is the cat doing?Whats she doing?What are they doing?What are they doing?What is the bear doing?What is the bear doing?What is the pig doing?What is the boy doing?What is the girl doing?PracticeHow many are there?There are What are they doing?They are注意单数时句型的变化