新版pep六年级英语上册Unit2-B-Let's-learn.ppt

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1、Unit2 Ways to go to school Part B Lets learn lighttraffic lights lightsThey are traffic lights.What colors are they?redyellowgreenalightWhat colour is the traffic light?Can you guess?What does the red light mean?Stop and wait at a red light.表示表示的意思的意思What colour is the traffic light?What should we d

2、oWhat should we do when the traffic light is green?when the traffic light is green?Go at a green light.What color is the traffic light?What should we do when the traffic light is yellow?Slow down and stop at a yellow light.Slow down and stop慢下来并停下。慢下来并停下。小贴士小贴士：slow(反义词反义词)fast down(反义词反义词)upGame ti

3、meSlow down and stop!Stop and wait!Lets go!What are they?Slow down and stop at yellow light.Stop and wait at a red light.Go at a green light.They are traffic rules.交通规则交通规则Mike:Mike:Look!The park is Look!The park is over thereover there!Lets go!Lets go!Mrs Smith:Mrs Smith:Please wait!Please wait!Its

4、 red now.Its red now.We We mustmust stop and wait.stop and wait.nature parknature park必须必须必须必须在那儿在那儿在那儿在那儿如何用如何用must表示必须做某事表示必须做某事句型结构：主语+must+动词原形（+其他）Must 是情态动词，意为“必须”，语气很强烈，没有人称和数的变化，后面接动词原形。例：We must finish our homework first.我们必须先完成我们的家庭作业。1.If the light is red,you must_.2.If the light is green,you must_.3.If the light is yellow,you must_.Slow down and stopgoStop and wait