语法及练习1句法第一节陈述句：用来叙述一个事实或一个观点的句子是陈述句。1、陈述句的肯定式：Thisismyclassroom.Youcanhaveapuppy.Katiegetsupearly.Iworkhardly.Wewenttherelastmonth.2、陈述句的否定式：“be+not”构成的否定；”Thisisnotmyclassroom.donot构成的否定：Idon’tworkhardly.(动词原形的否定)doesnot构成的否定；Katiedoesn’tgetupearly.（第三人称单数的否定）didnot构成的否定：Wedidn’tgotherelastmonth.can/will/would+not构成的否定Youcan’thaveapuppy.第二节疑问句1、一般疑问句：be开头.Isthisabook?肯定回答：Yes,thisis.否定回答：No,thisisnot.情态动词can,will,would开头.CanIhaveapuppy?肯定回答：Yes,youcan.否定回答：No,youcan’t.do/did/does开头.Doyouworkhardly?肯定回答：Yes,youcan.否定回答：No,youcan’t.Doeskatiegetupearly?肯定回答：Yes,shedoes.否定回答：No,shedoesn’t.Didwegotherelastmonth?肯定回答：Yes,youdid.否定回答：No,youdidn’t.2、特殊疑问句：what,who,which,whose,when,why,where,how.what”什么，干什么？”who”谁”which“哪个”whose“谁的”when“时间”why“为什么”where“地点”how“方式”。回答不用yes或no，根据实际情况回答。Whoareyou?3、选择疑问句：一般疑问句+or+可选择部分，特殊疑问句+可选择部分+or+可选择部分，回答不用yes或no，根据实际情况回答。Whatonedoyouwant,thelongoneortheshortone?第三节祈使句1、祈使句的肯定形式为：be/动词原形+其他。Pleasebequiet.2、祈使句的否定形式为：don’t+动词原形。Don’tworry.3、Let引导的祈使句形式为：let+第一、第三人称代词的宾格和名词+动词原形。Letthemgohome.Letherdothatwork.Let’sgotoschool.
