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1、,Unit 4 Dont eat in class.,SectionA grammer focus3c,Do we have to wear a uniform?,Yes, we do.,Pair work,Ask and answer questions about the rules at your school.,情態(tài)動(dòng)詞can的用法 1) 表示能力 “會(huì), 能” Canyouplaytheguitar? 你會(huì)彈吉它嗎? JudycanspeakChinese 朱蒂會(huì)說(shuō)中文。 Icandanceandsing. 我能唱歌又能跳舞。,2) 表示允許、許可, “可以”、“能” Canthes
2、tudentsruninthehallways? 學(xué)生們可以在走廊上跑嗎? Wecaneatoutside. 我們可以在外面吃東西。,注意: 和大部分情態(tài)動(dòng)詞一樣, can在否定句中, 直接在can后加上not, 在疑問(wèn)句中, 把can放到主語(yǔ)前面, 并且沒(méi)有人稱和數(shù)的變化。,肯定祈使句 Sit down. Come in. Eat at home.,否定祈使句 Dont sit down. Dont come in. Dont eat at home.,Grammar,祈使句是用來(lái)表示請(qǐng)求、命令、叮囑、號(hào)召或者勸告等, 主語(yǔ)常是第二人稱you,也就是聽(tīng)話者,因而you常省去。祈使句的開(kāi)頭是動(dòng)
3、詞原形。可在句首或句末加上please,若在句末加please,之前要用逗號(hào)隔開(kāi)。,祈使句的否定形式多以donot (常縮寫成dont) 開(kāi)頭, 再加上動(dòng)詞原形。,1. 肯定祈使句的常見(jiàn)句型結(jié)構(gòu): Do型:動(dòng)詞原形+賓語(yǔ)+其他. 如: Open the door, please. Be型:Be+表語(yǔ). 如:Be a good boy! Let型:Let+賓語(yǔ)+動(dòng)詞原形+其他. (或:Lets+動(dòng)詞原形+其他.) 如: Let me help you. Lets play tennis.,2. 否定祈使句的常見(jiàn)句型結(jié)構(gòu): Do型和Be型的否定式:Dont+動(dòng)詞 原形 / be+其他. 如:Don
4、t forget me. Dont be late. Let型的否定式:Dont+let+賓語(yǔ)+動(dòng)詞原形+其他. (或:Lets+not+動(dòng)詞原形+其他.) 如:Dont let him go back. Lets not go swimming. 警示語(yǔ):No+名詞 / 動(dòng)詞-ing形式. 如: No talking.,I _a uniform every day.,They _wear a uniform every day.,Yes,_.,Look and say.,Do you have to wear a uniform every day?,have to,No,_.,have t
5、o wear,I do,I dont,I _do homework every day.,have to,I _ on weekends.,have to clean my bedroom,We have to. We have to arrive at school on time. We have to do homework every day. We have to clean the classroom every day. We have to keep the classroom clean. We have to study hard at all lessons.,What
6、do you have to do at school?,Group work,- Do you have toin the school? - Yes, we do. / No, we dont.,wear school uniforms every day clean the classrooms every day do morning exercises every day do homework every day have classes from Monday to Saturday wear school badge (?;? every day arrive at schoo
7、l before 7:00am listening to English every day,Dont smoke! No smoking!,Dont take photos No photos!,Please turn right!,Do you know these?,Dont park here. No Parking!,Dont turn left.,Dont listen to music !,in the classroom,Dont eat!,Dont fight!,Dont run in the hallways.,What are the rules in the libra
8、ry Think as many as you can.,Dont talk in the library! No talking!,Dont talk loudly!,Practice,Can we ? Yes, we can. No, we cant.,eat in class listen to music outside wear hats in school fight in class speak loudly in the library,Library rules 1. Dont talk. 2. _ 3. _ _ 4. _ _,Dont eat.,Write the rule
9、s for the school library.,3a,Dont listen to music.,Dont take photos.,Use the words to make questions about the rules. Then write answers according to your school.,3b,1. 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
10、 the dining hall)? A: _,Does he have to eat in the dining hall?,No, he doesnt. He can 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 c
11、ant.,No, we cant.,What time does the school begin in the morning? When do you have to arrive at school in the morning? As students, what do you have to do in the school?,At my dream school, we dont have to come to school every day. We ,The best school rules 1. We can eat in class. 2. We dont have to
12、 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).,class,listen,clean,wear,arrive,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. _ _ in class. 4. You cant be late for school. _ _ late for school. 5. You cant take photos here. _ photos
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