Isthisyourpencil?GrammarFocusUnitThreeGrammarFocusGrammarFocusLet’sseethesesentences:Let’sseethesesentences:ThisThisisishisgreenpen.(hisgreenpen.(陈述句陈述句))IsIsthishisgreenpen?(thishisgreenpen?(一般疑问句一般疑问句))YesYes,itis.(,itis.(肯定回答肯定回答))NoNo,it,itisnotisnot(=isn’t)(=isn’t)..((否定回答否定回答))GrammarFocusGrammarFocusLet’sseethesesentences:Let’sseethesesentences:ThatThatisisaruler.(aruler.(陈述句陈述句))IsIsthataruler?(thataruler?(一般疑问句一般疑问句))YesYes,itis.(,itis.(肯定回答肯定回答))NoNo,it,itisnotisnot(=isn’t)(=isn’t)..((否定回答否定回答))GrammarFocusGrammarFocusLet’sseethesesentences:Let’sseethesesentences:TheseTheseareareyourbooks.(yourbooks.(陈述句陈述句))AreAretheseyourbooks?(theseyourbooks?(一般疑问句一般疑问句))YesYes,theyare.(,theyare.(肯定回答肯定回答))NoNo,theyarenot,theyarenot(=aren’t)(=aren’t)..((否定回答否定回答))GrammarFocusGrammarFocusLet’sseethesesentences:Let’sseethesesentences:ThoseThoseareareherkeys.(herkeys.(陈述句陈述句))AreArethoseherkeys?(thoseherkeys?(一般疑问句一般疑问句))YesYes,theyare.(,theyare.(肯定回答肯定回答))NoNo,theyarenot,theyarenot(=aren’t)(=aren’t)..((否定回答否定回答))Unit3语法总结•(一)含be动词的一般疑问句•定义：用Yes或No回答的疑问句叫一般疑问句。•口诀：变疑问，往前提，句末问号莫丢弃。•（注意：如果陈述句中有第一人称，则变问句时最好变为第二人称）课堂练习一、填空1.-Isthatyourpencil?-Yes,________.2.-Isthisyourruler?-___,itisn’t.3.-____thoseyourbooks?-No,they____.4.-Isthisherpen?-No,itisn’t.____mine.5.-__thatyourpencilbox?-___,itisn’t.Itis____.6.-Isthishiseraser?-___,itis.7.-__thisyoureraser?-Yes,______.It’s___.itisNoArearen’tIt’sNohis/hersYesIsitismineIs二、句型转换（变成一般疑问句并作回答）1.Thisismypen.2.Thatishisbook.3.GuoPengismyfriend..4.He/Sheismycousin.Isthisyourpen?Yes,itis./No,itisn’t.Isthathisbook?Yes,itis./No,itisn’t.IsGuoPengyourfriend?Yes,heis.No,heisn’t.Ishe/sheyourcousin?Yes,he/sheis.No,he/sheisn’t.5.Thesearepencils.6.Thosearegirls/boys.Arethesepencils?Yes,theyare.No,they’renot.Arethosegirls/boys?Yes,theyare.No,they’renot.Welldone!Let’scontinueFindoutthedetails(寻找细节)Isthisyourruler?Yes,itis.It’smyruler.=mineIsthatyourruler?No,itisn’t.It’shisruler.=hisIsthatyourpen?No,itisn’t.It’syourpen.=yoursAretheseyourbooks?No,theyaren't.They’reherbooks.=hers（二）、人称代词、形容词性物主代词与名词性物主代词人称代词I我you你/你们he他she她做主语形容词性物主代词后接名词名词性物主代词my我的mine我的your你的/你们的yours你的/你们的his他的his他的her她的hers她的(三)形容词性物主代词和名词性物主代词的区别：•形容词性物主代词：•用作定语，后面接名词。如：mypen,yourruler；•名词性物主代词：•名词性物主代词=形容词性物主代词+名词•如：Thispenismine.（=mypen）速记口诀：形物代词能力差，自己不能来当家。句子当中做定语，后面要把名词加。名物代词能力强，自己独来又独往。练习一：单项选择1.--Isthis___dictionary?--No,it‘snot___(I).It’sTom‘s.A.you;myB.your;mineC.yours;mineD.yours;my2.--Isthis___bike?--No,itisn't.____isoverthere.A.your;MyB.yours;MineC.yours;MyD.your;MineBD练习二：用所给词的适当形式填空1.--Isthis___(you)book?--No,it‘snot___(I).2.--Ann,isthatAlice'sbike?--No,it‘snot___(she).3.Thisisn‘t___(I)book.It’s___(he).4.Thisbookis____(she).5.___（她）ismyfriend,andthisbookis____(I).yourminehersmyhishersShemineUnit2SectionB1a-1eebhigd1.baseball2.watch3...
