七年级英语下册Unit 4《Don't eat in class.》(Section A--2)
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《Don't eat in class.》(Section A--2)To learn to take about library rulesTo learn to ask and answer questions about the rulesDon't smoking! No smoking!Don't fight.Don't listen to music in the classroom!Don't run in the hallways.Don't take photos here.=No photots!Don't take your schoolbags to the library!No schoolbags!Don't arrive late for class.Don't take in the library!No talking!Don't talk loudly in public!Use the words to make questions about 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:Does he have to eat in the dining gall?（he/haveto /in dining hall）?A:No,he doesn't.He can also eat outside.Listen to music?Q:Can we listen to music the hallways?(we/can/in the hallways)?A:No,we can't.Wear a hat?Q:Can we wear a hat in the classroom?(we/can/in the classroom)A:No,we can't.Look and asyI have to wear a uniform every day.I have to do homework every day I have to clean my bedroom on weekends.pair work Ask and answer questions about the rules at your schoolDo you have to wear a uniformYes,we do.Do you have to……in the school?Yes,we do./No,we don't.Wear school uniforms every dayClean the classrooms every day do omrning exercises every daydo homework every dayhave classes from monday to Saturdayarrive at school before 7:00amlisten to English every dayGroup work Waht do you have to do at school?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.词语链接情态动词can的用法1）表示能力“会，能”Can you play the guiter?你会弹吉它吗？Judy can speak a little Chinese.朱蒂会说一点中文2）表示充许、许可、可能、能（在这一课中新学的词义）Can the students run in the hallways?学生们可以在走廊中跑吗？We can eat outside.我们可以在外面吃东西。注意：和大部分情态动词一样，can 在否定句中，直接在can后加上not，在疑问句中，把can放到主语前面，并且没有人称和数的变化。Grammar肯定祈使句 否定祈使句sit down Don't sit downCome in Don't come in Eat at home. Don't eat at home.祈使句是用来表示请求、命令、叮嘱、号召或者劝告等句子，这类句子的主语常是第二人称you，也就是听话者，因而you常省去了。祈使句的开头是动词原形。如：Look out! 小心Wait here for we!在这等我！Be suer to come here on time!务必准时来到这里。祈使句的否定形式多以do not(常缩写成don't)开头，再加上动词原形。Listen to music outside.Don't listen to music outside.Do your homework at school.Don't do you homework at school.Don't Look oyt of the window.一要向窗外看。祈使句的常见句型结构祈使句表示请求、命令、劝说、号召、警告等。表示委婉的祈使语气，可在句首或句末加上please，若在句末加please，之前要用逗号隔开。祈使句有肯定祈使句与否祈使句两种。1.肯定祈使句的常见句型结构：1、Do型：动词原形+宾语+其他。如“Open the door please.2、Be型：Be+表语。如：Be a good boy。3、Let型 ：Let +宾语+动词原形+其他。（或：Let's +动词原形+其他。）如：Let me help you.又如：Let's play tennis.2.否定祈使句的常见句型结构：1、Do型和be型的否定式：Don't+动词/be+其他。如：Don't forget me 又如：Don't be late.2、Let型的否定式：Don't+let+宾语+动词原形+其他。（或：Let's+not+动词原形+其他）如：Don't let go back.又如：Let's not go swimming.3、警示语：No+名词/动词-ing形式。如：No talking.用所给单词的适当形式填空1.Don't listen(listen)to music in the libary.2.Do we have to clean (clean)the room every day?3.You can't wear (wear)sunglasses in the classroom.4.Please arrive (arrive) at school on time.5.John is often late for class (class).将下面的句子改为祈使句，每空一词1.You can come inCane in,please.2.I can help you .Let me help you.3.You can't eat in class.Don't eat in class.4.You can't be late for school.Don't be late for school.5.You can't take photos here.No photos here.homeworkWrite down ten sentences about what you can or can't do in your house.
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