2、e=Don’tbearrivelateforthemeetingnexttime下次开会别迟到2、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 s
3、chool. 上学别迟到。Don't fight! 别打架!Don't look out of the window. 不要向窗外看。C.你在预习在有哪些不会读的单词和不懂的地方,请列举出来:(二)预习检测1、至少写出6个祈使句(三个肯定祈使句和三个否定祈使句)2、根据音标写出下列单词及其汉语意思。(注意黑体部分对应的字母)[rul] ['hɔl,we] [faɪt] 3、翻译下列短语或句子inthehallwayDon’tfight.listentomusicarrivelateforclass二、课堂互动探究1、1b是关于的对
6、词can表示许可的肯定句、否定句、一般疑问句及肯定、否定回答。2、学习情态动词 have to的各种句式的变化。3、学会用can和haveto与他人讨论规章制度。【学习过程】一、预习指导与检测(一)预习指导A.预习P72-P73的单词,做到会读知意。B.知识点拨。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+(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 sneake
7、rs 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 unifo
8、rm. 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。(3)疑问句:Do (Does或Did)+主语+have to +动词原形+其他如:Do you have to s