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1、一般疑问句、物主代词Unit3概念简单的说，能用Yes或No（相当于Yes或No)回答的疑问句叫一般疑问句。当然就目前来说，我们也可以说以Be动词+主语引导的句子叫一般疑问句。1.Isthisyourpencil?→Yes,itis./No,itisn’t.It'shers.2.Isthatyourdictionary?→Yes,itis./No,itisn’t.It’shis.3.Aretheseyourbooks?→Yes,theyare.No,theyaren't.They'rehers.4.Arethoseyourkeys?→Yes,theyare.No,the
2、yaren't.They'remine.am,is,are引出的一般疑问句例如:Areyouaboy/Helen?Issheateacher?Isheastudent/jack?Isagirlastudent?Isthis/thatabook?Arethese/thosebooks?一般疑问句的答语要遵循下面几条规律：（1）要用Yes(肯定回答）或No(否定回答）来回答。（2）Yes,主语+be.No,主语+be+not.(be和not可以缩写）如：Isheastudent?Yes,heis/No,heisn't.AreLiMngandWangFangstudents?
3、Yes,theyare./No,theyaren't.（3）若一般疑问句的主语是第二人称，回答中的主语改为第一人称。如：Areyouastudent?Yes,Iam./No,I'mnot.(4)一般疑问句朗读时要读声调，而答语要读降调。AreyouHelen?→Yes,Iam./No,I'mnot.IsheJack?→Yes,heis./No,heisn't.Isthegirlastudent?→Yes,sheis./No,sheisn't.AreLucyandLilystudents?→Yes,theyare./No,theyaren't.肯定陈述句变否定陈述句、一般
4、疑问句1.Thisisaschoolbag.→Thisisn'taschoolbag.→Isthisaschoolbag?Yes,itis./No,itisn't.2.Theyaremygrandparents.→Theyaren’tmygrandparents.→Aretheyyourgrandparents?Yes,theyare./No,theyaren't.3.Heismyfather. →Heisn’tmyfather. →Isheyourfather? Yes,heisn’t./No,heisn‘t.4.Iamateacher. →I’mnotateache
5、r. →Areyouateacher? 否定：be动词后面加（not)一般疑问句：一调二变三问号。(一调：be动词到主语前，大写变小写。二变：第一人称变第二人称，大写变小写。三问：句号变问号）课堂练习：1.ThisisanEnglishdictionary.(变一般疑问句并作出回答）2.Thisisaneraser.(变成否定句)3.AreyouMary?(变成肯定陈述句）4.That’s(Thatis可以缩写)asetofkeys.(变一般疑问句并作出答语）5.Heisaboy.(变否定句）6.It'sadog.(变疑问句并作出回答）7.Theseareyourpa
6、rents.(变一般疑问句并作出肯定回答）8.Thosearewatches.(变成否定句)9.Isthatyourcat?(改为复数形式并作否定回答)10.Heismycousin.(变一般疑问句并作出肯定和否定回答)11.It‘sadog.(变一般疑问句并作出否定回答）12.Maryismyfriend.(变一般疑问句)Be动词和其他词的缩写1.英语中be动词在某些名词、代词及少数副词后可用缩写形式。例如：Iam=I‘mitis=it’s(用于否定回答)whatis=what‘smynameis=myname’s isnot=isn’tarenot=aren’t w
7、hereis=where’stheyare=they’re2.并非任何情况下都能缩写(1)thisis没有缩写，amnot,thoseare,theseare也没有缩写形式，只有thatis=that’s. (2)在一般疑问句的简略回答中，代词不能与am,is,are缩写。例如：Isthatabus？Yes,itis.(这里it和is是不能缩写的) Areyouateacher？Yes,Iam(这里I和am是不能缩写的).人称代词(分为主格和宾格)第一人称第二人称第三人称主格(单数)Iyouhe/she/it (复数)weyouthey宾
