1、Unit 4Dont eat in class.人教人教版版七七年年级英语下册级英语下册Section A Grammar Focus-3cu To learn to use“can”for permission.u To learn to write the rules.u To learn to make questions about rules and answer.ObjectivesDont smoke!No smoking!Warming UpTell your classmate what the rules should be.Dont fight.No fighting!D
2、ont run in the hallways.Dont arrive late for class.We have to wear uniforms.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 in the dining hall.Can we wear a hat in class?Yes,we can./No,we cant.Does he have to w
3、ear a uniform at school?Yes,he does./No,he doesnt.What do you have to do?We have to be quiet in the library.Grammar Focus1.不要在楼道里跑。不要在楼道里跑。_2.不要打架。不要打架。_3.有什么规则？有什么规则？_ 4.我们必须按时上课我们必须按时上课._阅读阅读Grammar Focus部分，完成下列句子。部分，完成下列句子。Dont fight.Dont run in the hallways.What are the rules?We must be on time
4、for class.5.我们可以在教室里吃东西吗？我们可以在教室里吃东西吗？_6.不能。但我们可以在餐厅里吃东西。不能。但我们可以在餐厅里吃东西。_ _7.我们可以在上课的时候带帽子吗我们可以在上课的时候带帽子吗？_Can we wear a hat in class?No,we cant,but we can eat in the dining hall.Can we eat in the classroom?8.他在学校里必须穿校服吗？他在学校里必须穿校服吗？_9.是的，必须。是的，必须。/不，不必。不，不必。_10.你们必须做什么？你们必须做什么？_ 11.在图书馆里我们必须保持安静。在
5、图书馆里我们必须保持安静。_Yes,he does./No,he doesnt.Does he have to wear a uniform at school?What do you have to do?We have to be quiet in the library.一、祈使句一、祈使句1.用法：用法：一般以动词原形开头，表示请一般以动词原形开头，表示请 求、命令、劝说、警告等。在祈使句求、命令、劝说、警告等。在祈使句 中，通常省略句子主语第二人称中，通常省略句子主语第二人称you。2.句子结构句子结构(1)肯定句：肯定句：_+其他其他 在餐厅里吃东西。在餐厅里吃东西。_ 在音乐教室
6、里听音乐。在音乐教室里听音乐。_ 骑自行车去上学。骑自行车去上学。_Ride the bike to school.Eat in the dining hall.动词原形动词原形Listen to music in the music room.(2)否定否定句：句：_+_+其他其他 不要和同学们打架。不要和同学们打架。_ 不要在教室里打篮球。不要在教室里打篮球。_Dont fight with your classmates.Dont play basketball in the classroom.Dont 动词原形动词原形(3)以以let引起的句子引起的句子 _+sb.+动词原形动词原形
7、 让我们步行去上学吧。让我们步行去上学吧。_(4)No+动词动词-ing形式。表示形式。表示“禁止、规劝禁止、规劝”禁止停车！禁止停车！No Parking.禁止吸烟！禁止吸烟！No Smoking.LetLets walk to school.二、询问和讨论学校规则：二、询问和讨论学校规则：1.有有什么规则什么规则？我我们必须保持安静。们必须保持安静。_ _ 2.我我们可以在上课的时候戴帽子吗？们可以在上课的时候戴帽子吗？_ 不不可以。你可以在外面戴帽子。可以。你可以在外面戴帽子。_What are the rules?We must be quiet.Can we wear a hat i
8、n class?No,we cant.You can wear a hat outside.3.你你们必须做什么事？们必须做什么事？_ 我我们必须穿校服。们必须穿校服。_4.他必须在校吃午饭吗？他必须在校吃午饭吗？_We must wear the school uniforms.What do you have to do?Does he have to eat lunch at school?Write the rules for the school library.Library Rules1.2.3.4.Dont talk.Dont eat.Dont listen to music.
9、Dont take photos.3a Use the words to make questions about the rules.Then write answers according to your school.Be quiet?Q:Does she have to be quiet in the library?(she/have to/in the library)?A:Yes,she does.Eat?Q:_ (he/have to/in the dining hall)?A:_Does he have to eat in the dining hall?Yes,he doe
10、s.3b Listen to music?Q:_ (we/can/in the hallways)?A:_Wear a hat?Q:_ (we/can/in the classroom)?A:_Can we listen to music in the hallways?No,we cant.Can we wear a hat in the classroom?No,we cant.1.We can eat in class.2.We dont have to come to school every day.3.Make up five cool rules for your dream s
11、chool.Share your rules with the class.Your classmates vote for the Coolest School!At my dream school,we dont have to come to school every day.We 3c At my dream school,we dont have to come to school every day.We can eat in class.We dont have to wear school uniforms.We can listen to music in class.We
12、can eat in the classroom.We dont have to do homework.At my dream school,we dont have to come to school every day.We can eat in the classroom.We can listen to music in class.We dont have to do homework.We dont have to wear school uniforms at school.Make our school rulesMake our school rulesDear stude
13、nts:In order that we can have a good environment(环境环境),we should have some rules in our school.Here are some suggestions.We hope that all of us can have a look at them.1.Dont sleep in class.2.Clean the classroom every day.3._ 4._ 5._ 6._ Yours _ have to 的用法的用法have to意思是意思是“必须、不得不必须、不得不”,它侧重于它侧重于客观上的
14、必要和外界的权威。客观上的必要和外界的权威。1)结构：结构：主语主语have to动词原形其他动词原形其他(一般现在时一般现在时,主语是第三人称单数时，主语是第三人称单数时，用用has to；句子是过去时，用；句子是过去时，用had to。)如：如：We have to wear sneakers for gym class.在体育课上在体育课上,我们必须穿运动鞋。我们必须穿运动鞋。Tom has to practice the guitar every day.汤姆每天必须练习弹吉它。汤姆每天必须练习弹吉它。I had to get up at 5:00 am last Monday.上周一
15、上周一,我不得不早上我不得不早上5点起床。点起床。2)否定形否定形式：式：主语主语dont have to动词原形动词原形其他其他(一般现在一般现在时，主时，主语是第三人称单数语是第三人称单数时，时，用用doesnt have to；句；句子是过去子是过去时，用时，用didnt have to)e.g.Nick doesnt have to wear a uniform.尼克不必穿校服。尼克不必穿校服。We didnt have to do our homework at once.我们不必马上完成作业。我们不必马上完成作业。3)疑问疑问句：句：Do(Does 或或 Did)主语主语 have
16、 to 动词原形其他动词原形其他 如如:-Do you have to stay at home on weekends?-Yes,I do./No,I dont.周末你必须待在家里吗？周末你必须待在家里吗？是的是的,我必须。我必须。/不不,我不必。我不必。Did he have to go to bed by 11:00 last night?昨昨晚晚,他不得不他不得不11点上床睡觉吗？点上床睡觉吗？.用所给单词的适当形式填空。1.Dont _(listen)to music in the library.2.Do we have to _(clean)the room every day?
17、3.You cant _(wear)sunglasses in the classroom.4.Please _(arrive)at school on time(准时准时).5.John is often late for _(class).classlistencleanweararrive.将下面的句子改为祈使句，每空一词。1.You can come in._ _,please.2.I can help you._ me _ you.3.You cant eat in class._ _ in class.4.You cant be late for school._ _ late f
18、or school.5.You cant take photos here._ photos here.Come inLet helpDont eatDont beNo1.-Can the students eat in the classroom?(作否定回答作否定回答)-No,_.2.Bill has to play sports every morning.(改为一般疑问句改为一般疑问句)_ Bill _ _ play sports every morning?they cantDoes have to.按要求完成句子，每空一词。3.You cant wear a hat in clas
19、s.(改为祈使句改为祈使句)_ _ a hat in class.4.He has to see his grandparents on weekends.(对划线部分提问对划线部分提问)What _ he _ _ _ on weekends?5.Come in,please.(改为否定句改为否定句)_ _ in,please.Dont weardoeshave to doDont come1.我们必须按时到校。我们必须按时到校。We must arrive at school _ _.2.你能把你的电子游戏带到学校来吗？你能把你的电子游戏带到学校来吗？Can you _ your compu
20、ter game _ school?on timebring.根据所给汉语完成英语句子，每空一词。to3.周末迈克经常在外面吃饭。周末迈克经常在外面吃饭。Mike often _ _ on weekends.4.星期天你不必早起。星期天你不必早起。You _ _ _ get up early on Sundays.5.不要在走廊里乱跑。不要在走廊里乱跑。Dont run _ _ _.eats outsidedont have toin the hallways 中考链接You _ always be careful with electricity for safety.A.must B.can C.mustnt D.cant【2019辽宁辽宁】A _ I take the magazine out of the reading room?Im sorry you _.A.Could;couldnt B.Must;couldnt C.will;cant D.May;cant【2019贵州黔南三州贵州黔南三州】DWrite down ten sentences about what you can or cant do in yourhouse.We cant eat in bed.We cant fight.
