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1、Unit 4 Dont eat in class.The Third PeriodSection A(Grammar Focus-3c)Do you know the rules in these places?hospitalmeeting roomDo you know the rules in these places?gas stationDo you know the rules in these places?Look at the two girls.What are the differences between the two expressions?Study in gro
2、upsStudy in groupsIm tired.I want to have a seat.Can I sit here?Yes,you can.I dont like school,but the rules let all of us go to school.So I have to go to school.Dont run in the hallways.Dont fight.What are the rules?We must be on time for class.Can we eat in the classroom?No,we cant,but we can eat
3、in the dining hall.Can we wear a hat in class?Yes,we can./No,we cant.Does he have to wear a uniform at school?Yes,he does./No,he doesnt.What do we have to do?We have to be quiet in the library.Grammar Focus Write the rules for the school library.3a Library Rules1._2._3._4._Dont talk.Dont eat(in the
4、library).Dont listen to music(in the library).Dont take pictures/photos(in the library).Use the words to make questions about the rules.Then write answers according to your school.Be quiet?Q:_ (she/have to/in the library)?A:_Eat?Q:_ (he/have to/in the dining hall)?A:_Does she have to be quiet in the
5、 library?Yes,she does.Does he have to eat in the dining hall?Yes,he does.3bListen to music?Q:_ (we/can/in the hallways)?A:_Wear a hat?Q:_ (we/can/in the classroom)?A:_Can we wear a hat in the classroom?No,we cant.Can we listen to music in the hallways?No,we cant.Make up five cool rules for your drea
6、m school.Share your rules with the class.Your classmates vote for the Coolest School!1.We can eat in class.2.We dont have to come to school every day.3.At my dream school,we dont have to come to school every day.We.3c1.Dont fight.不要打架。（教材第不要打架。（教材第21页）页）fight此处用作动词，意为此处用作动词，意为“打架；战斗打架；战斗”。e.g.:Stop
7、fighting!The teacher is coming.别打了，别打了，老师来了。老师来了。【拓展】【拓展】fight的常见搭配的常见搭配 fight against sb.与某人搏斗与某人搏斗/打仗打仗/作战；作战；fight(with sb.)about/over sth.（与某人）就（与某人）就某事争辩；某事争辩；fight for sth.努力争取，为努力争取，为而而斗争。斗争。2.Can we eat in the classroom?我们可以在教室里我们可以在教室里吃东西吗？（教材第吃东西吗？（教材第21页）页）情态动词情态动词can在本句中表示请求，意为在本句中表示请求，意
8、为“可以可以”。其一般疑问句形式为其一般疑问句形式为“Can+主语主语+动词原形动词原形+其他其他?”；肯定回答用；肯定回答用“Yes,.can.”，否定回答用，否定回答用“No,.cant.”。e.g.:Can I use your bike?我可以用用你的自行车吗？我可以用用你的自行车吗？Yes,you can.是的，你可以。是的，你可以。3.What do you have to do?你们必须做什么？（教你们必须做什么？（教材第材第21页）页）have to为固定短语为固定短语,意为意为“不得不不得不”,强调由客观强调由客观原因造成不得不去做某事原因造成不得不去做某事,有有have t
9、o和和has to两种两种变化变化,在变否定句和疑问句时要借助助动词在变否定句和疑问句时要借助助动词do,does。e.g.:He has to do the dishes after dinner.他晚饭他晚饭后必须洗餐具。后必须洗餐具。Does she have to do her homework beforedinner?她必须晚饭前做作业吗？她必须晚饭前做作业吗？一、单项选择。一、单项选择。()1.What do you have to do?_A.I have to clean my room.B.I have a nice room.C.I clean my room.D.I l
10、ike my room.A()2.He _ do his homework in the evening.A.have to B.has to C.has D.must to()3.Tina has _ uncle.He often wears _ uniform.A.a;a B.an;an C.a;an D.an;aBD二、按要求完成下列各题。二、按要求完成下列各题。1.He has to go to work at 7:30.（改为否定句）（改为否定句）He _ _ to go to work at 7:30.2.Please play the piano after school.（改为
11、否定句）（改为否定句）Please _ _ the piano after school.3.You mustnt listen to music in class.（改为祈使句）（改为祈使句）_ _ listen to music in class.4.She does her homework after supper.（改为一般疑问句）（改为一般疑问句）_ she _ her homework after supper？doesnt havedont playPlease dontDoes do1.Review the words and phrases.2.Read and recite Grammar Focus.