现在进行时教学课件.ppt

* Good morning everyone! Welcome to our class! The Present Continuous Tense （现在进行时态） The Present Continuous Tense (现在进行时态) 定义： 构成： 标志： 现在进行时表示正在发生或进行的动作。 “be (am, is, are )+v- ing“ v-ing是动词的现在分词，动词be根据主语人称进行变化 。 当句中出现Look/Listen/now或有上下文提示时用现在进行时。 例如:???? Look！Han Mei is singing there！ Listen！Jack is talking. ? What are you doing now？ It is running, now. read 想一想：这些现在分词是怎样构成的? look listen clean drink ing ing ing ing ing 想一想：这些现在分词是怎样构成的? mak giv hav com ing ing ing ing ing write make come writ have give 想一想： 这些现在分词是怎样构成的？ get t ing let t ing run n ing put ing begin n ing t 同学们通过观察找到什么规律没有呢？ 动词现在分词的构成规律 1) 一般情况下，在动词原形后直接加-ing. 如：work—working (工作) do—doing（做） play—playing（玩） 2) 以不发音的字母e结尾的动词，去掉e，再加-ing. 如： dance—dancing（跳舞） come—coming（来） (但动词词尾是字母组合ee的,就不能去掉词尾e，而应直接加-ing。例如:? see－seeing) 3) 重读闭音节单词，如果末尾只有一个辅音字母，则双写这一字母，再加-ing. 如： get—getting(得到) shop—shopping（购物） run—running（跑） swim—swimming （游泳） 练习 写出下列动词的ing 形式. 1.help_________ 2.come_________ 3.swim_________ 4.eat__________ 5.give________ 6. take_______ 7.sit ________ 8. play________ helping coming swimming eating giving taking playing sitting What is the man doing? He is running. What is the girl doing? She is eating . What are they doing? They are playing football. What is he doing? He is singing. What is the baby doing? He is swimming. *