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小学英语语法总结:祈使句素材小学英语语法总结:祈使句肯定式:以动词原形开头(有时有please)否定式:don't+动词原形开头(有时有please)如:Becareful!Pleaseopenyourbooks.Letmehaveatry.Don’topenthedoor.注意:把祈使句改为否定句只需在动词前加don't即可。...