称单数及单数名词HelikesbooksShelikeshimThedoglikesbo
es★变疑问句在句首加does动词变为原型DoeshelikebooksDoesshelikehimDoesthedoglikebo
es★变否定句在主语及动词之间加does
’t动词变为原型，原句中的动词不再有第三人称变化。Hedoes
’tlikebooksShedoes
’tlikehimThedogdoes
’tlikebo
es★肯定回答及否定回答：YeshedoesNohedoes
’tYesshedoesNoshedoes
’tYesitdoesNoitdoes
’t
f注意：第三人称单数形式一般在动词后面加S，不要和名词复数混淆，变否定句或疑问句时名词复数没有任何变化。
其他人称及复数名词Iwa
ttohaveabathWehavesomemeatThestude
tslikesmartteachers★变疑问句在句首加doDoyouwa
ttohaveabathDowehavea
ymeatDothestude
tslikesmartteachers★变否定句在主语和动词之间加do
’tYoudo
’twa
ttohaveabathWedo
’thavea
ymeatThestude
tsdo
’tlikesmartteachers★肯定回答及否定回答YesIdoNoIdo
’tYeswedoNowedo
’tYestheydoNotheydo
’t
f一般过去时表示过去发生的动作或事件，常和表示过去的时间状语连
用，如yesterdaylast
ightthedaybeforeyesterday3daysago
含有be动词的句子，将动词变为过去式，amis的过去式为was，are的过去式为were
Iwasatthebutcher’sYouwereastude
tayearagoTheteacherwasverybeautifulte
yearsago★变疑问句将be动词移动到句首Wereyouatthebutcher’sWereyouastude
tayearagoWastheteacherverybeautifulte
yearsago★变否定句在be动词后面加
otIwas
otatthebutcher’sYouwere
otastude
tayearagoTheteacherwas
otverybeautifulte
yearsago★肯定回答否定回答
fYesIwasNoIwas
otYesyouwereNoyouwere
otYesheshewasNoheshewas
ot★特殊疑问句：Whatdidyoudo必背不含有be动词的句子，将动词变为过去式，动词过去式构成见附录Ifi
ishedmyhomeworkyesterdayTheboywe
ttoarestaura
tTheSawyerslivedatKi
gStreetayearago★变疑问句在句首加did，动词变为原型Didyoufi
ishyourhomeworkyesterdayDidtheboygotoarestaura
tDidtheSawyersliveatKi
gStreetayearago★变否定句在主语和动词之间加did
otIdid
otfi
ishmyhomeworkyesterdayTheboydid
otgotoarestaura
t
fTheSawyersdid
otliveatKi
gStreetayearago★肯定回答及否定回答YesIdidNoIdid
’tYeshedidNohedid
’tYestheydidNotheydid
ot现在完成时构成：主语助动词havehas过去分词用法：2表示过去发生的和现在有某种联系的动作，常和justusuallyalreadysi
ce等时间副词连用Ihavejusthadlu
ch饱了，不用再吃了Hehashadacupoftea不渴了，不用r