七年級英語下冊第四單元課件SectionA3a3c.ppt1恢復(fù)

1、 unit 4 dont eat in class. 教學(xué) 課件設(shè)計(jì) 洪江市托口中學(xué) 劉利群unit 4dont eat in class.section a grammar focus3cwhat do we have to do at school or in the classroom?what cant we do ?lets look and say some school or class rulers.教師寄語：no rules, no standards. (沒有規(guī)矩不成方圓。） we have to do some reading every morning.we have

2、to exercise every day.we have to work hard and help each other.we have to clean our classroom and keep it clean every day.we have to wear our school id card. we have to do homework after school.dont fight with others.=we cant fight with others.dont arrive late for class.=we cant arrive late for clas

3、s.we cant eat in class.=dont eat in the classroom. dont have long hair for boys. =boys cant have long hair . dont sleep in class.=we cant sleep in class. we cant run in the hallways.=dont run in the hallways. dont play sports in the classroom or in the hallways.but we can play it outside. dont talk

4、in class.dont talk with each other in class.stop talking in class. dont smoke . its bad for your health.dont play cards at school.dont listen to music in the classroom. lets talk about our family rules.eat in bedwatch tv latetalk loudly on the phoneget up late on sundaysplay computer games late at n

5、ightsing loudly at nightmake the bed after getting upclean the bedrooma: what do you have to do at home?b: we have toa: what cant you do ?b: we cant 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 dini

6、ng 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.grammar focuswhat do you have to do?we have to be quiet in the library.情態(tài)動詞can的用法1) 表示能力 “會, 能”can you play the guitar? 你會彈吉他嗎？jim can speak chinese.吉姆會說中文。i can dance and

7、 sing. 我能唱歌又能跳舞。2) 表示允許、許可, “可以”、“能”can the students run in the hallway 學(xué)生們可以在走廊上跑嗎？ we can eat outside. 我們可以在外面吃東西。注意: 和大部分情態(tài)動詞一樣, can在否定句中, 直接在can后加上not, 在疑問句中, 把can放到主語前面, 并且沒有人稱和數(shù)的變化。have to的用法表示客觀的必要性：“必須，不得不”，在一定意義上與must可以互換。must沒有人稱，數(shù)和時(shí)態(tài)的變化。have to有人稱，數(shù)和時(shí)態(tài)變化。 we have to do homework after scho

8、ol.they must be on time for class.she has to be quiet in the library.do you have to go to school on time?注意: have to在否定句中, 直接在have to前面加dont, 在一般疑問句中, 在主語前面加助動詞do, 并且有人稱，數(shù)和時(shí)態(tài)的變化。肯定祈使句肯定祈使句sit down. come in. eat at home.lets go home.否定祈使句dont sit down. dont come in. dont eat at home.dont talk in clas

9、s.祈使句用來表示請求、命令、叮囑、號召或者勸告等, 主語常是第二人稱you,也就是聽話者,因而you常省去。祈使句的開頭是動詞原形。句首或句末加上please，若在句末加please，之前要用逗號隔開。祈使句的否定形式多以do not (?？s寫成dont) 開頭, 再加上動詞原形。1. sit down.2. come in.3. eat at home.dont sit down.dont come in. dont eat at home.把下列祈使句改成否定句practice: 4. listen to music outside. 5. do your homework at sch

10、ool. dont listen to music outside. dont do your homework at school.1. late, dont, for school, arrive 2. music, listen to, in the classroom, dont 3. eat, cant, in the classroom, we dont arrive late for school.dont listen to music in the classroom.we cant eat in the classroom.form sentences. 組句 dont s

11、moke.no smoking!dont take photos.no photos!please turn right!do you know these?dont park here. no parking.dont turn left.dont talk loudly!dont talk!no talking!library rules1. dont talk.2. _3. _ _4. _ _dont eat.write the rules for the school library. 3adont listen to music.dont take photos.use the wo

12、rds to make questions about the rules. then write answers according to your school.3b1. be quite? q: does she have to be quite in the library? (she/have to/in the library) a: yes, she does.2. eat? q: _ (he/ have to/ in the dining hall)? a: _does he have to eat in the dining hall?no, he doesnt. he ca

13、n also eat outside.3. listen to music? q: _ (we/ can/ in the hallways)? a: _ 4. wear a hat? q: _ (we/ can/ in the classroom)? a: _can we listen to music in the hallways?can we wear a hat in the classroom?no, we cant.no, we cant.3c make up five cool rules for your dream school. share your rules with

14、the class. your classmates vote for the coolest school!at my dream school, we dont have to come to school every day. we 1. we can eat in class.2. we dont have to come to school every day.3.4.用所給單詞的適當(dāng)形式填空。1. dont _(listen) to music in the library.2. do we have to _(clean) the room every day?3. you cant _(wear) sunglasses in the classroom.4. please _(arrive) at school on time (準(zhǔn)時(shí)).5. john is often late for _ (class).classlistencleanweararrive將下面的句子改為祈使句，每空一詞。1. you can come in. _ _, please.2. i can help you. _ me _ you.3. you cant eat in class. _