会计学StudyingAims(学习(xuéxí)目标）现在完成(wánchéng)时动词构成:have/has+v过去分词规则(guīzé)动词过去分词的构成不规则动词(dòngcí)过去分词的构成4.ABB型（过去(guòqù)分词与过去(guòqù)式一致）现在(xiànzài)完成时的标志词：现在完成(wánchéng)时的用法：2.表示从过去已经开始，持续到现在或还将持续下去(xiàqù)的动作或状态。2）无标志(biāozhì)词的：EXERCISE区分(qūfēn)短暂性动词与持续性动词.注意:瞬间(shùnjiān)动词不能和时间段连用.method1:1.她成为(chéngwéi)一名护士已经三年了。(become）2.我已经离开上海5天了。(leave）3.这本书他已经买了两周了。（buy）4.我入团已经一年了。（jion)5.电影已经开演半个小时了。（begin）6.他来这里已经三年了。（come)他的爷爷(yéye)已经去世2年了。链接中考(zhōnꞬkǎo)用所给动词的适当形式填空。1.Ialready(see)thefilm.I(see)itlastweek.2.—he(finish)hisworktoday?—Notyet.3.—you(be)toHongKong?—Yes,I(be)theretwice.4.—youever(eat)chocolatesundaes（圣代）?—No,never.5.Myfatherjust(come)backfromwork.Heistirednow.6.—Where'sLiMing?—He(go)totheteacher'soffice.一、单项选择(xuǎnzé)。（独立完成）1、Bothhisparentslooksad.Maybethey_________what'shappenedtohim.Ａ.knewＢ.haveknownＣ.mustknowＤ.willknow2、Hehas_______beentoShanghai,hashe?Ａ.alreadyＢ.neverＣ.everＤ.still3、Thefamouswriter______onenewbookinthepasttwoyear.Ａ.iswritingＢ.waswritingＣ.wroteＤ.haswritten4、—Ourcountry______alotsofar.—Yes.Ihopeitwillbeeven______.Ａ.haschanged;wellＢ.changed;goodＣ.haschanged;betterＤ.changed;better5.We______XiaoLisinceshewasalittlegirl.Ａ.knowＢ.hadknownＣ.haveknownＤ.knew6、HarryPotterisaverynicefilm.I_______ittwice.Ａ.willseeＢ.haveseenＣ.sawＤ.see7、—ThesefarmershavebeentotheUnitedStates.—Really?When_____there?Ａ.willtheygoＢ.didtheygoＣ.dotheygoＤ.havetheygone8、Hurryup!Theplay__________fortenminutes.Ａ.hasbegunＢ.hadbegunＣ.hasbeenonＤ.began9、It_____tenyearssinceheleftthearmy.Ａ.isＢ.hasＣ.willＤ.was10、MissGreenisn'tintheoffice.she_______tothelibrary.Ａ.hasgoneＢ.wentＣ.willgoＤ.hasbeen二、句型转换(zhuǎnhuàn)。(独立完成）1.Hehasneversurfed，?（改成反意疑问句）2.Theyhavebeenheresince2000.(对划线部分提问)havetheybeenhere?3.Theoldman_________lastyear.Heforayear.(die)（动词填空）4.Thisfactoryopenedtwentyyearsago.(同义句转换(zhuǎnhuàn))Thisfactoryfortwentyyears.5.MissGaoleftanhourago.(同义句转换(zhuǎnhuàn))MissGao_______________________________anhourago.6.Hermotherhasbe