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1、七年级英语专项练习——句型转换句型分类陈述句肯定句否定句疑问句一般疑问句特殊疑问句一.肯定句变否定句1)Iamastudent.Iamnotastudent.2)Theyareblue.Theyaren’tblue.3)HeisKangkang.Heisn’tKangkang.1、谓语是be动词时，在be动词后加not。2、谓语是动词原形，在动词前加don’t。1)Ihaveabook.Idon’thaveabook.2)TheylikeChinese.Theydon’tlikeChinese.3)WecomefromChina.Wedon’t
2、comefromChina.3、谓语动词是第三人称单数，在动词前加doesn’t，动词用原形。1)Shehasasmallmouth.Shedoesn’thaveasmallmouth.2)MarialikesChina.Mariadoesn’tlikeChina.3)JanecomesfromtheU.S.A.Janedoesn’tcomefromtheU.S.A.练习：将下列句子变成否定句。1.Iamateacher.Iateacher.2.Wearestudents.Westudents.3.Janeisagirl.Janeagirl.4
3、.TheylikeEnglish.TheylikeChinese5.IcomefromChina.IcomefromChina.6.HelikesChinese.HelikeChinese.7.MariacomesfromCuba.MariacomefromCuba.8.WeknowMaria.WeknowMaria.amnotaren’tisn’tdon’tdon’tdoesn’tdoesn’tdon’t二.肯定句变一般疑问句1)Iamastudent.Areyouastudent?2)Theyareblue.Aretheyblue?3)He
4、isKangkang.IsheKangkang?1、谓语是be动词，把be动词提到句首，第一人称变第二人称。2.谓语是动词原形，在句首加do，第一人称变 第二人称。1)Ihaveabook.Doyouhaveabook?2)TheylikeChinese.DotheylikeChinese?3)WecomefromChina.DoyoucomefromChina?3.谓语动词是第三人称单数，在句首加Does， 动词用原形。1)Shehasasmallmouth.Doesshehaveasmallmouth?2)MarialikesChina.D
5、oesMarialikeChina?3)JanecomesfromtheU.S.A.DoesJanecomefromtheU.S.A?4)SheknowsMaria.DoessheknowMaria?练习:将下列句子变成一般疑问句。1.Iamateacher.ateacher?2.Theyarestudents.Students?3.Janeisagirl.agirl?4.TheylikeEnglish.____likeEnglish?5.IcomefromChina.___comefromChina?6.HelikesChinese.heCh
6、inese?7.MariacomesfromCuba.MariafromCuba?8.WespeakChinese.youChinese?AreyouAretheyIsJaneDoDoDoeslikeDoescomeDospeaktheyyou三.一般疑问句做肯定,否定回答AreyouMaria?1、肯定回答：Yes,主+助/系， 否定回答:No,主+助/系+not， 第二人称变第一人称。肯定回答：Yes,Iam.否定回答：No,I’mnot.2.答语和问句中的助动词保持一致，第二人称变第一人称。1)Areyouastudent?肯:Yes,I
7、am.否：No,I’mnot.2)IsheKangkang?肯：Yes，heis.否：No，heisn’t.3)DotheylikeChinese?肯：Yes,theydo.否：No,theydon’t.4)Doesshehaveasmallmouth?肯：Yes,shedoes.否：No,shedoesn’t.3.答语和问句中的主语保持一致。 （必须用主格）1)IsJanefromtheU.S.A?2)DoesKangkangcomefromChina?3)DoJaneandMarialikeChina?4)Isthisaruler?肯:Ye
8、s,sheis.否:No，sheisn’t.肯:Yes,hedoes.否:No,hedoesn’t.肯:Yes,theydo.否:No,theydon
