语法强化与扩展：指示代词：this,that,these,those1.this和these指说话人较近的人或物，that和those指说话人较远的人或物．this和that指单数，be动词用单数形式is，同时后面的名词用单数形式。these和those表示复数，be动词用复数形式are，同时后面的名词用复数形式。2.在回答主语this或that的一般疑问句或特殊疑问句时，在答语中用it代替句中this或that;Whatisthis/that?这是/那是什么？It’sa/an...它是...；Isthis/that...?这是/那是...吗？Yes,itis.是的，它是。No,itisn’t.不，它不是。3.在回答主语these或those的一般疑问句或特殊疑问句时，在答语中用they代替句中these或those;Whatarethese/those?它们是什么？Theyare...它们是...;Arethese/those...?这些/那些是.吗？Yes,theyare.是的，它们是。No,theyaren’t.不，它们不是。4.在介绍某人时，用this或that，而不用he或she；例如Thisismymum.5.打电话时，说自己是谁用Thisis...，问别人是谁用Who’sthat?一：填空1.Ilike_____pants._______pantsarered.(这些)2.Idon’tlike____shoes.____shoesaretoosmall.(那些)3.Iwant_____(这个)sweater.Idon’twant________（那个）sweater._____（那个）istoobig.二：选择（）1.__________penisred.________pencilisgreen.A.this,thatB.These,ThoseC.That,ThoseD.This,That（）2.Is_____apandaoverthere?A.thisB.thatC.thoseD.these（）3.__________twogirlsareMaryandLinda.A.ThisB.TheyC.ThatD.Those（）4.Look，whatis_______?It’saneraser.A.thisB.thatC.theseD.those（）5.Are________yourwatchesoverthere?A.thisB.thatC.theseD.those（）6._______thosehisdictionaries?A.isB.AreC.IsD.are（）7.——IsthatMary’sschoolbag?——_________A.Yes,itisn’t.B.No,itis.C.Yes,it’s.D.No,itisn’t.（）8.——_______thisyourfriend?——_______A.is;Yes,heis.B.Is;Yes,itis.C.Are;No,itsnot.D.are;Yes,Iam.（）9.——AretheseHelen’spencils?——_______A.Yes,they’re.B.No,theyare.C.Yes,theyare.D.No,itis.（）10.——Whatarethose?——______A.Theyarebox.B.Theyareboxes.C.It’sabox.D.Yes,theyare.三．选择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.IsD.are5.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,it’snot.D.Yes,Iam.7.AretheseHelen’spencils?_______A.Yes,they’re.B.No,theyare.C.Yes,theyare.D.No,itis.8.Whatarethose?______A.Theyarebox.B.Theyar