课件15张PPT。Unit 4 Let's Go and PlayLesson 20 Traffic LightsRead togetherLeft, right, left, left, right, right
Left, left, right, right, go, go, go!
Left, left, right, right, go, turn around, go, go, go! 祈使句 : 是表示请求、命令、建议等句子，通常说话的对象是第二人称you，you常被省略。肯定式：以动词原形开头
否定式：don’t +动词原形
Be careful!
Open your books.
Let me have a try.
Don’t open the door.
No smoking!I. 大哥V
V(代表行为动词原形)+宾语+其它成分
②Help yourself to some fish.
随便吃点鱼吧。 ①Close the window. 关上窗户。II. 二哥B
Be+表语(名词/形容词等)+其它成分
①Be a good student! 做个好学生！
②Be quiet!安静！III. 三哥L
Let+宾语(通常为第一或第三人称宾格)+动词原形+其它成分
①Let’s go home! 咱们回家吧！
② Let her in. 让她进来。IV. 四哥P
Please+动词短语（please也可放在句尾，其前加逗号）
Please sit down. = Sit down, please.请坐。五哥DDon’t+动词原形+其它成分
六弟NNo+名词或动名词（是日常生活中常见的警示语）
① Don’t be late. 不要迟到。
② Don’t read in the sun.
别在阳光下看书。① No photos!
禁止拍照！
② No smoking！
禁止吸烟!牢记，牢记，再牢记Don’t talk with your mouth full.Don’t play with food.Don’t waste food!Let’s singThat’s all, see you next time!课件18张PPT。Unit 4
Let’s Go
and Play!Lesson 20
Traffic Lights Look and say!These are traffic lights.Red light, stop.Yellow light, wait.Green light, go.This means you can ＿＿!What’s this mean?This means you should ＿＿!What’s this mean?This means you should ＿＿!What’s this mean?I see the ＿.What do you see?I see the ＿.What do you see?I see the ＿.What do you see?I see the ＿.What do you see? go
wait
stop
traffic light
yellow light
red light
green light
Answer Talk with your partner about the fun_ction of traffic lights.Let’s talk!Write down the new letters on the book, each for three times.Homework Thank You!
