内容正文:
Module 2 Man’s best friends
Unit 4 Save the trees
Period 3 Grammar
Lead in
The man in the puple suit is playing the guitar.
Look at the pictures, read the sentences and pay attention to the red parts:
The girl with short hair is playing volleyball.
Lead in
The girl in the yellow skirt is playing tennis.
The boy with short black hair is playing table tennis.
Presentation
The Present Continuous Tense
(现在进行时)
一.含义:
1.表示现在正在进行的动作。
2.表示现阶段正在进行或从事的动作。
二.基本结构:
be + doing(现在分词)
三.现在进行时的特点
1. 现在进行时表示现在(说话的瞬间)正在进行或发生的动作。
e.g: The students are listening to the professor right now.
这些学生正在聆听教授的话。
The little boy is watching the football match now.
这个小男孩正在看球赛。
2. 现在进行时还可以表示目前阶段正在进行(但说话时不一定在进行)的动作。
We are preparing for the mid-term exam these days.
这几天,我们正在为期中考试做准备。
3. 一些表示位置移动的动词,如 go, come, leave 等,常用现在进行时表示将要发生的动作。
e.g: She is leaving for Beijing tomorrow.
明天她将前往北京。
四.句子结构
1. 肯定句:主语+be+doing(+其它).
eg. The students are playing football.
学生们正在踢足球。
2. 否定句:主语+be not+doing(+其它).
eg. The students aren't playing football.
学生们没有踢足球。
3. 一般疑问句:be+主语+doing(+其它)?
eg. Are the students playing football?
学生们正在踢足球吗?
Yes, they are. / No, they aren't.
是的,他们在踢足球。/ 不,他们没有。
4. 特殊疑问句:特殊疑问词+be+主语+doing(+其它)?
eg. What are the students doing?
学生们正在做什么?
五.现在分词的构成
1.大多数动词
在词尾直接加ing
watch → watching
2.以不发音的e结尾的动词
需去e,再加ing
smile → smiling
3.以一个元音字母加上一个辅音字母结尾的重读闭音节单词
双写词尾辅音字母,再加-ing
run → running
4.以字母ie结尾的动词
将ie改为y,再加-ing
die → dying
5.以“元音字母+y/w”结尾的单词
在词尾直接加-ing
play → playing
throw → throwing
laugh _________ fight _________
lie _________ dig _________
climb _________ produce_________
discuss_________ save _________
Write down the -ing form of the words:
laughing
fighting
lying
digging
climbing
producing
discussing
saving
六.标志词:
1. 表示现在进行时的时间状语,如now, right now,at the moment,at this time,these days 等;
eg. It's 6:30 now. I am getting up.
现在是6:30,我正在起床。
2. 用look