单数复数用法this:这these:这些指距离较近的人或物that:那those:那些指距离较远的人或物1.Whatisthis/that?这是/那是什么?It’sa/an...它是...2.Isthis/that...?这是/那是...吗?Yes,itis.是的,它是。No,itisn’t.不,它不是。3.Whatarethese/those?它们是什么?Theyare...它们是...4.Arethese/those...?这些/那些是...吗?Yes,theyare.是的,它们是。No,theyaren’t.不,它们不是。练习:一.单选1.Look,whatis_____?It’saneraser.A.thisB.thatC.theseD.those2.Are_____yourwatchesoverthere?A.thisB.thatC.theseD.those3.______thisyourfriend?A.isB.AreC.IsD.are4.______thosehisdictionaries?A.isB.AreC.IsDare5.IsthatMary’sschoolbag?_________A.Yes,itisn’t.B.No,itis.C.Yes,it’s.D.No,itisn’t.6.Isthisyourfriend?_______A.Yes,heis.B.Yes,itis.C.No,itsnot.D.Yes,Iam.7.AretheseHelen’spencils?_______A.Yes,they’re.B.No,theyare.C.Yes,theyare.D.No,itis.8.Whatarethose?______A.Theyarebox.B.Theyareboxes.C.It’sabox.D.Yes,theyare.9.WhatisthisinEnglish?______A.Itsaneraser.B.It’saeraser.C.It’smyaneraser.D.It’smyeraser.二.按要求改写句子1.Isthisyourpen?(作否定回答)2.ArethoseKate’sparents?作(肯定回答)3.Theseareoranges对.(划线部分提问)4.Thosearemycousins.对(划线部分提问)5.Isthisherdictionary?(改为复数)6.Thosearen’tmywatches.(改为单数)