七年级下册英语Unit 4 Don’t eat in class.知识点学案

Unit4 Don’t eat in class
短语?
?in?class?在课上
2.?on?school?nights?在上学的上 ? 3.?school?rules?校规?
4.?no?talking?禁止交谈 5.?listen?to?music?听音乐? 6.?have?to?不得不? 7.?take?my?dog?for?a?walk?带狗去散步?
8.?eat?outside?在外面吃饭? 9.?in?the?hallway?在走廊上? 10.?wear?a?uniform?穿制服?
11.?arrive?late?for?class?上学迟到? 12.?after?school?放学后? 17.?be?in?bed?在床上?
13.?practice?the?guitar?练习弹吉他 ?14.?in?the?cafeteria?在自助食堂里
?15.?meet?my?friends?和我朋友见面?16.?by?ten?o'clock.十点之前?18.?the?Children's?Palace?少年宫?
19.?help?my?mom?make?dinner?帮助我妈做饭
?二．重点句型?
1.Don’t?arrive?late?for?school＝Don’t?be?late?for?school?
2.Don’t?fight?
3.Don’t?listen?to?music?in?the?classroom.?
4.Don’t?run?in?the?hallways?
5.Don’t?smoke.?It’s?bad?for?your?health.?
6.Don’t?play?cards?in?school?
7.Don’t?talk?in?class?
8.Don’t?watch?TV?on?school?nights.?
9.Dont?sleep?in?class.?
10.Don’t?play?sports?in?the?classrooms.?
11.Don’t?sing?songs?at?night.?
12.Don’t?talk?when?you?eat.?
13.Don’t?wear?hats?in?class.?
14.Do?homework?by?10:00.?
15.Clean?your?house!?
16.Make?the?bed.?
17.Can?we?……??Yes?,we?can.?No,?we?can’t.?
Eg:Can?we?arrive?late?for?class??? No,?we?can’t.?We?can’t?arrive?late?for?class.?
18.Do?you?have?to?wash?your?clothes??Yes,?I?do./No,?I?don’t.?
三．?重难点解析：?
1.?情态动词have?to?的用法，意思是"必须、不得不"，它侧重于客观上的必要和外界的权威。
（1）结构：主语＋have?to＋动词原形＋其他? （一般现在时，主语是第三人称单数时，用has?to；句子是过去时，用had?to.）
如：?We?have?to?wear?sneakers?for?gym?class.?在体育课上，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。I?had?to?get?up?at?5:00?am?last?Monday.?上周一，我不得不早上5点起床。??
（2）否定形式：主语＋don't?have?to＋动词原形＋其他? （一般现在时，主语是第三人称单数时，用doesn't?have?to.?句子是过去时，用didn't?have?to）?
如：Nick?doesn't?have?to?wear?a?uniform.?尼克不必穿制服。We?didn't?have?to?do?our?homework?at?once.?我们不必马上完成作业。?
疑问句：Do?（Does或Did）＋主语＋have?to?＋动词原形＋其他?
如：Do?you?have?to?stay?at?home?on?weekends??周末你必须呆在家里吗？
Yes,?I?do.?/?No,?I?don't.?是的，我必须。不，我不必。
Did?he?have?to?go?to?bed?by?11:00?last?night??昨晚，他不得不11点前上床睡觉吗？?
2.?情态动词can的用法?
（1）表示能力，"会""能"（在第一册中已经学习这种用法）?
Can?you?play?the?guitar??你会弹吉它吗？
Judy?can?speak?a?little?Chinese.?朱蒂会说一点中文。
I?can?dance?and?sing.?我能唱歌又能跳舞。?
（2）表示允许、许可，"可以"、"能"（在这一课中新学的词义）?
Can?the?students?run?in?the?hallways??学生们可以在走廊上跑吗？
We?can?eat?outside.?我们可以在外面吃东西。Can?I?come?in??我能进来吗？?
注意?同样是情态动词，can?和have?to?的用法是有区别的，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。?
3.?hear，listen和sound都有"听"的意思，但三者是有区别的。?
（1）hear"听说"，侧重于"听"的内容? I'm?sorry?to?hear?that?you?are?ill.?听说你生病了，我很难过。? I?never?heard?such?an?interesting?story.?我从来没听过这么有趣的一个故事。?
（2）listen"听"侧重于"听"这一动作。Listen?to?me?carefully.?认真听说。?The?children?like?to?listen?to?music.?孩子们喜欢听音乐。?
（3）sound"听起来"，它是系动词，后面接形容词等。That?sounds?great.?那听起来真不错。?It?sounds?like?fun.?听起来挺有趣。?
４.?be?in?bed?"在床上、卧床"in?和bed之间不能用冠词，bed也不用复数。? He?is?in?bed?for?10?years.?他卧床10年了。Dave?has?to?be?in?bed?early?every?night.大卫每晚必须很早睡觉。?
５.?arrive?late?for?与be?late?for?意思相近，"迟到"Don't?arrive?（be）late?for?school.?上学别迟到。I?arrived?（was）late?for?the?meeting?yesterday.?我昨天开会迟到了。?
６.?No?talking?!?"禁止交谈！"no后面加上名词或动名词（doing）也表示不要做某事。与don't?+do的用法相似。No?wet?umbrellas!?/?Don't?put?wet?umbrellas?here!?禁止放湿雨伞！?No?food!?Don't?eat?food?here!?禁止吃食物！No?smoking!?Don't?smoke?here!?禁止吸烟！?
7．语法（祈使句）? 祈使句是用来表示请求、命令、叮嘱、号召或者劝告等的句子，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?me!?在这等我！?Be?sure?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。
?Don't?arrive?late?for?school.?上学别迟到。?Don't?fight!?别打架！?
Don't?look?out?of?the?window.?不要向窗外看