人教版七年级下册英语第四单元.pptx

Dont eat in class.Unit 4hallway 走廊；过道走廊；过道New words classroom 教室教室New words New words rule 规则规则 dinning 饭厅；餐厅饭厅；餐厅New words New words fight 打架；争吵打架；争吵 Dont fight.不要打架不要打架 fight战斗，斗争，作战战斗，斗争，作战 fight with sb.同某人打架同某人打架 fight the fire救火救火fight 是不及物动词，其后加上是不及物动词，其后加上with才能接才能接宾语。宾语。fight with sb.意为意为“与某人打架与某人打架”。如：。如：Dont fight with your sister again.不要再和你妹妹打架了。不要再和你妹妹打架了。They are fighting with the enemies bravely.他们正在勇敢地同敌人战斗。他们正在勇敢地同敌人战斗。Explanation Notes:1 arrive in/at+地点地点 get to+地点地点 reach+地点地点 (到达某地方到达某地方)2class 班，课班，课 in class 在课堂上在课堂上 have classes 上课上课 be late for class上课迟到上课迟到inside 里面的；在里部的里面的；在里部的on time 准时准时 in time 及时及时他每天准时到校。他每天准时到校。He gets to school on time everyday她及时赶到了医院。她及时赶到了医院。She reach the hospital in time.be strict with sb.他爸爸对他很严格。他爸爸对他很严格。His father is strict with him.重点短语重点短语迟到迟到 arrive（be）late for 在走廊在走廊/餐厅餐厅 in the hallway/dining hall 在教室在教室/音乐教室音乐教室 in the classroom/music room听（音乐）听（音乐）listen to(the music)外出外出 go out清洗餐具清洗餐具 do the dishes铺床铺床 make ones bed与某人打架与某人打架 fight with sb 戴帽子戴帽子 wear a hat/wear hatsDont arrive late for class.School Rules Dont run in the hallways.School Rules Dont eat in the classroom.School Rules Dont listen to music in the classrooms or the hallways.School Rules Dont fight.School Rules Dont talk in class.Dont talk with each other in class.School Rules Dont sleep in class.School Rules School Rules Dont use mobile phone in class.Dont smoke.(No smoking)School Rules We cant rule the country without rules.没有规章制度就不能治理好国家.follow the ruleskeep rulesbreak rulesschool rulesclass rulesfamily ruleslibrary rulesdining rules遵守规则遵守规则违反规则违反规则校规校规班规班规家规家规图书馆规则图书馆规则就餐规则就餐规则break the class rulestalk about rulesbreak the rules违反规则违反规则break the school rules违反校规违反校规违反班规违反班规 谈论谈论规则规则Language goals 祈使句表请求、命令、叮嘱、邀请、劝告等。祈使句表请求、命令、叮嘱、邀请、劝告等。祈使句分为第二人称祈使句及第祈使句分为第二人称祈使句及第、三人称、三人称祈使句两大类。祈使句两大类。拓展拓展祈使句祈使句一、祈使句的分类一、祈使句的分类 1第二人称祈使句通常用来向听话者发出命第二人称祈使句通常用来向听话者发出命 令，提出要求或建议。这种祈使句的主语令，提出要求或建议。这种祈使句的主语 you通常不表示出来，而是以动词原形开通常不表示出来，而是以动词原形开 头。如：头。如：Stand up!Dont worry about!拓展拓展祈使句祈使句2第一、三人称祈使句是以第一人称和第第一、三人称祈使句是以第一人称和第 三人称代词或者名词等作为祈使的对三人称代词或者名词等作为祈使的对 象，这类祈使句通常以象，这类祈使句通常以let为引导词表建为引导词表建 议。如：议。如：Lets go!Let us go home!Let him be here by 10 oclock 二、祈使句的强调形式及否定形式二、祈使句的强调形式及否定形式 1.祈使句的强调形式是在整个结构之前加祈使句的强调形式是在整个结构之前加 do。如：。如：Do give my regards to your parents!务必一定代我向你父母问好务必一定代我向你父母问好!2.祈使句的否定形式是在整个结构之前加祈使句的否定形式是在整个结构之前加 dont或或never。如：。如：Dont be nervous!你不要紧张你不要紧张!拓展拓展祈使句祈使句肯定祈使句肯定祈使句 否定祈使句否定祈使句1.Sit down.2.Come in.3.Eat at home.4.Listen to music outside.5.Do your homework at school.Dont sit down.Dont come in.Dont eat at home.Dont listen to music outside.Dont do your homework at school.Practice 将下列祈使句改成否定形式。将下列祈使句改成否定形式。拓展拓展情态动词情态动词can的用法的用法1.表示能力（如体力和脑力方面），意为表示能力（如体力和脑力方面），意为 “能；会能；会”等。例如：等。例如：Can you speak English?你会讲英语吗？你会讲英语吗？2.表示请求或允许，多用在口语中，意为表示请求或允许，多用在口语中，意为“可以；可以；能能”等。例如：等。例如：Can I help you?我能帮助你吗？我能帮助你吗？用于否定句表示不允许。例如：用于否定句表示不允许。例如：You cant play basketball.你不能玩篮球。你不能玩篮球。拓展拓展情态动词情态动词can的用法的用法 用于疑问句中用来提出要求。例如：用于疑问句中用来提出要求。例如：Can you.？“请你请你好吗？好吗？”表示说话表示说话人的请求。人的请求。Can I.？“我可以我可以吗？吗？”用来征求对用来征求对方是否允许自己做某事。如在句末加上方是否允许自己做某事。如在句末加上please一词就显得更有礼貌了。例如：一词就显得更有礼貌了。例如：Can you help me,please?请你帮助我好吗？请你帮助我好吗？拓展拓展情态动词情态动词can的用法的用法3.表示可能。例如：表示可能。例如：He can be at home now.他现在可能在家。他现在可能在家。The moon cant always be full.月亮不可能常圆。月亮不可能常圆。4.表示怀疑。在表达此意时，只能用于一般表示怀疑。在表达此意时，只能用于一般 疑问句中，带有感情色彩。例如：疑问句中，带有感情色彩。例如：Can it be true?那会是真的吗？那会是真的吗？1.Mr Green smoke here,because theres a sign on the wall.It says“No smoking.”2.Its very hot outside.You wear a hat.3.We eat in the classroom,because its impolite to teachers.4.I go to bed after 22:00 on weekends.5.The students read books and magazines in the library.cantcancancancantPractice 根据句意，用根据句意，用can和和cant填空。填空。have to意为意为“必须；不得不必须；不得不”，后接动词原，后接动词原形，有人称、数和时态的变化。形，有人称、数和时态的变化。它的第三人称单数形式为它的第三人称单数形式为has to，过去式为过去式为had to。含含have to,has to,had to的句子需分别借的句子需分别借助助动词助助动词do,does,did构成疑问句和否定句。构成疑问句和否定句。如：如：She has to go there by bus.(改为一般疑改为一般疑问句问句)Does she have to go there by bus?They had to get up early.(改为否定句改为否定句)They didnt have to get up early.have to的用法的用法1.have to句式句式肯定式肯定式:have/has to+动词原形动词原形We have to leave now.She has to work on Sunday.否定式否定式:dont/doesnt have to +动词原形动词原形一般疑问式一般疑问式:Do/Does+主语主语+have to+动词原形动词原形+?You dont have to walk.He doesnt have to buy a new coat.-Do you have to study English now?-Yes,I do.-Do you have to study English now?-Yes,I do.-Does he have to go now?No,he doesnt(have to).-Does he have to go now?No,he doesnt(have to).特殊疑问句特殊疑问句:疑问词疑问词+do/does+主语主语+have to+动词原形动词原形+?What do you have to do?Where does she have to go?2.have to 与与must的区别的区别have to 着重于客观的需要着重于客观的需要,含有含有不得不不得不的客观强的客观强制性制性;must着重于主观上自己认为有义务着重于主观上自己认为有义务,有必要有必要.She has to clean the classroom every week.I must go now.在否定句中在否定句中,dont have to 表示表示没有必要没有必要,Mustnt表示表示禁止禁止.You dont have to go there.You mustnt play football on the road.A:Do you have to wear a uniform?B:Yes,I do./No,I dont.have to:不得不得不不,必须必须1.I have to get up early on Monday morning.2.Jim has to help his mother do some cooking.3.I had to cook for my sister last night.4.You didnt have to wait for me yesterday.昨天你没有必要等我。昨天你没有必要等我。用用have to或或has to填空填空1.We clean our classroom after school.2.She make her bed after getting up.3.Its late.Mr Beckman go to work by car.4.Emily and Peter join a music club.They practice guitar every day.have tohave tohas tohas to句型转换句型转换 1.Write your name on the list.（改为否定句）_ _your name on the list.2.Mary has to do the cleaning at home on weekends,(改为一般疑问句)_ Mary _ to do the cleaning at home on weekends?3.They have to get up at 5:30 every morning.(划线部分提问)_ _ they have to get up?4.I can see some books on the desk?(改为否定句)I_ see _ books on the desk.5.How was the weather yesterday?（改为同义词）_ was the weather _ yesterday?Dont writeDoes haveWhen docantanyWhatlikeSelect the correct verb from the choices in Select the correct verb from the choices in parenthesis.parenthesis.选择正确的动词填空。选择正确的动词填空。选择正确的动词填空。选择正确的动词填空。1.(Can/Does)_ we eat in class?2.(Dont/Has to)_ wear a hat in class!3.Does Bill(have to/can)_ go to bed now?4.Francisco and Andrew(cant/dont)_ come?5.(Do/Have to)_ they wear sports shoes?2.翻译句子：（用到所给词语）翻译句子：（用到所给词语）1)不要在图书馆大声说话。不要在图书馆大声说话。(loudly)2)放学后不要看电视。放学后不要看电视。(after)3)不要上课吃东西。不要上课吃东西。(in class)4)不要上学迟到。不要上学迟到。(arrive)5)不要在马路上踢球。不要在马路上踢球。(on the road)6)请把那本书给我看看。请把那本书给我看看。(show)7)不要与别的同学打架。不要与别的同学打架。(fight with)Fill in the blank of school rules:1.Dont _late for class/school.3.Dont run_.5.We _ in class.4._ the classroom after class.2._eat in class.6.We _ wear the school uniformarrivein the hallwayshave toDontCleancant play basketball1.和某人打架和某人打架2.不许说话不许说话3.上课迟到上课迟到翻译短语翻译短语（5秒）秒）fight with sb.No talking arrive late for school/be late for school3 pointsStop!1.外面很冷外面很冷,你必须穿大衣。你必须穿大衣。Its cold _.You _ _ wear your coat.2.你必须十一点前上床睡觉吗？你必须十一点前上床睡觉吗？Do you have to _ _ _ _ 11:00?3.你认为你的英语课怎么样？你认为你的英语课怎么样？What do you _ _ your English class?4.我们不能在教室里吃东西。我们不能在教室里吃东西。We cant _ in the _.outsidehave tobe in bed bythink ofeatclassrooms.汉译英汉译英 （30秒）秒）8Stop!1.Mike was late _ school yesterday because he got up late.2.Zhao Pei cant go out _ school nights.3.The boy _ a blue T-shirt is my brother.4.The students in our school cant wear hats _ class.5.Who do you often play basketball _?My friends.for on in in用适当的介词填空。用适当的介词填空。介词填空介词填空 with1.No talking!(改成同义句改成同义句)_ _,please!2.The man behind the white car is his father.（对画线部分提问）（对画线部分提问）_ _ is his father?Dont talk Which man 按要求改写下列句子。按要求改写下列句子。句型练习句型练习3.She read the book under the tree yesterday afternoon.（改成一般疑问句）（改成一般疑问句）_ she _ the book under the tree yesterday afternoon?4.Do your homework at school.（改为否定句）（改为否定句）_ _ your homework at school.5.My friend showed me his nice pen.(改成同义句改成同义句)My friend _ his nice pen _ me.Did read Dont do showed to