Unit6Unit6Turnleft
Turnright
Walkonthezebracrossing
Goupstairs
Don’tsmoke
Nosmoking
Don’tparkyourcar
Don’teat
Don’tpicktheflowers
ReadandobservethedifferenceTurnleft
Turnright
Don’tsmoke
Don’tparkyourcar
Pleasedon’teat
Don’tpicktheflowers
Pleasegoupstairs
Walkonthezebracrossing
Drawtheconclusion(得出结论)祈使句的结构如下:(Please)+dosth
(Please)+Don’tdosth
祈使句的句型Bequiet
Pleasehaveaseat
David,Lookout
Don’tbeafraid
Pleasedonotmakeanoise
Alan,don’tbelate
动词原形+…2
Please+动词原形…3
人名+动词原形…肯定否定在动词前面加don’t否定祈使句的定义•祈使句表示请求、命令、建议等等
•谓语动词一律用原形
•通常说话对象(主语)是第二人称you,you常被省略,句末用惊叹号或者句号
祈使句句式详解1
肯定的祈使句(1)动词原形+其他(与please连用以使语气委婉)Standup,please
=Pleasestandup
(2)Be+adj
Becareful
Bequiet
(3)Let's+动词原形Let’sgotoschooltogether
咱们一起上学去吧
祈使句句式详解2
否定的祈使句(1)Don't+动词原形+其他Don'tstandup
Don'tforgetyourhomework