七年级英语专项练习
——句型转换
句型分类陈述句肯定句否认句疑问句一般疑问句特殊疑问句
一.肯定句变否认句1.1)Iamastudent.Iamnotastudent.2)Theyareblue.Theyaren’tblue.3)HeisKangkang.Heisn’tKangkang.句子中有be等助动词是，在助动词后加not。
谓语是动词原形，在动词前加don’t。
2.1)Ihaveabook.Idon’thaveabook.2)TheylikeChinese.Theydon’tlikeChinese.3)WecomefromChina.Wedon’tcomefromChina.
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：将以下句子变成否认句。1.Iamateacher.Iateacher.2.Wearestudents.Westudents.3.Janeisagirl.Janeagirl.4.TheylikeEnglish.TheylikeChinese5.Helikesmath.Helikemath.6WeknowMaria.WeknowMaria.amnotaren’tisn’tdon’tdoesn’tdon’t
二.肯定句变一般疑问句1.1)Iamastudent.Areyouastudent?2)Theyareblue.Aretheyblue?3)HeisKangkang.IsheKangkang?句子中有be，把be提到句首
2.谓语是动词原形，在句首加do。1)Ihaveabook.Doyouhaveabook?2)TheylikeChinese.DotheylikeChinese?HelenandBobhavecomputergames.DoHelenandBobhavecomputergames?
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)MariawatchesTVeveryday.DoesMariawatchTVeveryday?3)Janeplayssportseveryday.DoesJaneplaysportseveryday?4)SheknowsMaria.DoessheknowMaria?
练习:将以下句子变成一般疑问句。1.Iamateacher.ateacher?2.Theyareboys.boys?3.Janeisagirl.agirl?4.TheylikeEnglish.theylikeEnglish?