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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,第五章 光的反射,第三节,平面镜,黄山徽州府 丰源学堂,要点回顾,第三节 平面镜,一 平面镜,反射面是光滑平面的镜子,二 平面镜的成像,实验:,(平面镜成像),成像特点:平面镜所成像是虚像,像和物到镜面的距离相等,像和物大小相等,像和物左右相反,像和物的连线与镜面垂直,成像原理:光的反射定律,三 平面镜的应用,利用平面镜成像,改变光的传播方向和路线,平面镜的应用:潜望镜,改变了,光的传播方向,改变了,光的传播路线,本节内容小结,平面镜成像特点,平面镜所成像是虚像,像和物体到镜面的距离相等,像和物体大小相等,像和物体的连线与镜面垂直,像与物左右相反,平面镜成像原理,光的反射定律,平面镜的应用,利用平面镜成像,改变光的传播方向和路线,课堂跟踪反馈,:,某人站在穿衣镜前,m,处，他在镜中的像到镜面的距离是_,m,当他向镜面前进,.,m,时，人与像间的距离是,m,下图是物体在平面镜中的成像情况，其中正确的是:,1,1,想想议议：,岸边的树木和房屋等在水中的像看上去都是倒立的，为什么,？,Unit 4 I want to be an actor.,Section A (Review),My Chinese name is Chen Ying.,My English name is Gail.,I usually,wear,a T-shirt.,I,teach,my,students English.,I work in Chengguan Middle School.,My job is interestingbusy,important(,重要,).,Im a,teacher,. Im an English teacher.,Mrs Chen is aan,.,She,teach,es,.,She,work,s,in.,She,think,s,his job is.,She usually,wear,s,.,Ask 2 st to introduce Mr ye,What do you do?,Im a,student,.,Where do you,study,?,I study,at school,.,What do you usually,wear,?,I,study,different subjects,.,Its,hard/fun,.,I usually wear,school,clothes,school uniform.,What things do you usually do at school ?,What do you think of your,study,?,Ask 2,What does he she do?,Heshe is aan.,What does heshe usually do?,Heshe studies .,Where does heshe study?,Heshe,studies,at.,What does heshe think of hisher study?,He ,she thinks,it is.,What does heshe usually wear?,Heshe usually,wears,.,Heshe is a.2s,a doctor,What does heshe do?,What is hisher job,?,Where does heshe work?,Heshe is aan .,Heshe works in .,a nurse,What things does heshe do? .,Heshe .,What do you think of hisher job?,I think its .,in hospital,help the sick people,importanthard,dangerous,look after,What does heshe wear?,Heshe wears .,a white uniform,a shop assistant,in a shopstoresupermarket,sells things,busy ,What does heshe do?,Where does heshe work?,Heshe is aan .,Heshe works in .,What things does heshe do?,Heshe .,What do you think of hisher job?,I think its .,an,actor,What does heshe do?,Where do they work?,Heshe is aan .,They work in .,What things do they do?,They .,What do you think of their jobs?,I think .,an,actress,in a studiofilm company,make movies,interestingdangerous ,a bank clerk,What does heshe do?,Where does heshe work?,Heshe is aan .,Heshe works in .,What things does heshe do?,Heshe .,What do you think of hisher job?,I think its .,in a bank,work with money,boring ,a,waiter,What does heshe do?,Where does heshe work?,Heshe is aan .,Heshe works in .,What things does heshe do?,Heshe .,What do you think of hisher job?,I think its .,a,waitress,in a restaurant,offerbring food and drinks,busy ,a reporter,What does heshe do?,Where does heshe work?,Heshe is aan .,Heshe works in .,What things does heshe do?,Heshe .,What do you think of hisher job?,I think its .,in a TV stationnewspaper,meet and ask people questions,interesting ,a,policeman,What does heshe do?,Where do they work?,Heshe is aan .,They work in .,What things do they do?,They .,What do you think of their job?,I think its .,a,policewoman,policewom,e,npolicem,e,n,in a police station,help people in trouble,catch a,thiefthieves,dangerousimportant ,a,businessman,What does heshe do?,Where do they work?,Heshe is aan .,They work in .,What things do they do?,They .,What do you think of their job?,I think its .,a,businesswoman,in a company,do businessmake money,busy ,an officer,in an office,does important things,busy,a scientist,in a lab,interestingimportant,a computer engineer,a computer company,hard interesting,a workersome workers,in a factory,make machines (,机器,),a taxi driver,in a taxi company,send people to different places,a singer,in a music company,a basketball player,plays basketball,on a basketball team,What does heshe (do they) do?,Where does heshe (do they) work?,Heshe is aan (They are) .,Heshe works (They work) in .,What things does heshe (do they) do?,Heshe (They) .,What do you think of hishertheir job?,I think its .,Make a dialogue,What do they do?,Where do they work?,They are .,They work in .,What things do they do?,They.,What do you think of their jobs?,I think their jobs are .,Make a dialogue,Guessing Game:,teacher,actor,worker(,工人,),doctor,reporter,bank clerk,businessman,nurse,policewoman,policeman,shop assistant,waiter,waitress,farmer(,农民,),officer,driver,（驾驶员）,housewife(,家庭主妇,),Show theSs the cards and let them guess do in pairsin chain,civil service(,公务员,),A Job Design,What do you want to be?,Why do you want to be?,What you will be ,you will be!,你能成为你可以成为的人！,What you want to be, you will be!,你可以成为你想成为的人！,2.Write down the plural forms(,复数形式,) of each different job.,1.Copy the new words in Section A.,4. Make a job designation for yourself in the future.,3.Write a composition about your families jobs.,Homework,
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