七年级英语下册 Unit 4 Don’t eat in class Section A句法语法课件 （新版）人教新目标版.ppt

don teatinclass sectiona句法语法 john hi myname sjohn it smyfirstdayatschool alice hi john i malice thisisagreatschool buttherearealotofrules john really whataresomeoftherules alice well don tbelateforclass thisisveryimportant john ok sowemustbeontime canwebringmusicplayerstoschool alice no wecan t andwealwayshavetoweartheschooluniform john isee alice oh andwealsohavetobequietinthelibrary john hi myname sjohn it smyfirstdayatschool alice hi john i malice thisisagreatschool buttherearealotofrules john really whataresomeoftherules alice well don tbelateforclass thisisveryimportant john ok sowemustbeontime canwebringmusicplayerstoschool alice no wecan t andwealwayshavetoweartheschooluniform john isee alice oh andwealsohavetobequietinthelibrary don tbelateforclass 祈使句 表示命令 请求 建议或劝告的句子 肯定 1 动词原形 其他standup please 请起立 2 be adj becareful 小心 3 letsb 动词原形let sgotoschooltogether 咱们一起上学去吧 否定 1 don t 动词原形don tstandup 别站起来 2 letsb not 动词原形letthemnotplaywithfire 别让他们玩火 3 no 名词 doingnofishing 禁止垂钓 canwebringmusicplayerstoschool no wecan t can 情态动词 能够 可以 wecaneatinthedininghall butwecan teatinclass 表示请求允许 wealsohavetobequietinthelibrary haveto 不得不 必须 侧重客观需要 must 必须 应该 侧重主观要求 ihavetodomyhomeworknow idon thavetodomyhomeworknow doyouhavetodoyourhomeworknow yes ido no idon t youmustgohomenow youmustn tgohomenow mustigohomenow yes youmust no youneedn t no youdon thaveto 完成句子 1 playinthestreet 不要在大街上玩 2 i lookaftermysister 我不得不照顾我的妹妹 don t haveto 单项选择 1 wecaneatinthedininghall butwe eatintheclassroom a don tb didn tc can td aren t 2 canyougooutwithyourfriends a yes ican tb yes pleasec no ican td yes ido c c 祈使句 肯定 动词原形 其他 be adj letsb 动词原形否定 don t 动词原形 letsb not 动词原形 no 名词 doing canwebringmusicplay