Unit1ArtLearningAboutLanguage講解高中英語人教版選擇性

Unit1語法不定式（todo）做表語的用法形式todo將來時主動式tobedone將來時被動式tobedoing進行時主動式tobebeingdone進行時被動式tohavedone完成時主動式tohavebeendone完成時被動式不定式做表語主語+系動詞+表語（todo)（表狀態(tài)）主語常常是表示意向、打算、目的、希望或其具體內(nèi)容等詞匯，如：aim,goal,purpose,ambition,intention(意圖),task(任務(wù)),plan,dream,decision,duty(責任),hope,wish,idea,way,job等。用于be動詞以及系動詞之后。系動詞包括：五感：look,sound,feel,taste,smell;五變：bee,get,turn,go,grow;三保持：keep,stay,remain;一是：be(am,is,are);一像：seem;永不忘?。?！表示想法、約定、義務(wù)、命令、可能性等。eg:Wearetotravelintwodays.what引導的主語從句（todo表目的）。eg:Whathewantedtodobeforegoingtoschoolwastofinishhishomework.疑問詞（what,how,why,where等）+todo.eg:Thequestionishowtocarryouttheplan.三、動詞不定式做表語的時態(tài)動詞不定式做表語時，如果不定式與邏輯主語之間是主動關(guān)系應(yīng)使用todo;如果是被動關(guān)系應(yīng)使用tobedone.Eg:Hisgoalistobeeavolunteeratthelocalhospitalintheingholidays.HisgoalistobeadmittedintoPekingUniversitythissummer.四、動詞不定式作表語的其他注意事項1.一般說來,不定式前面的to不能省略,但當主語部分含有實義動詞do時,to常常省略。如:Eg:Whathewantstodoisgoswimminginthatriver.他想做的事就是去那條河里游泳。2.當不定式的邏輯主語是句子的主語時,表示主語的責任、義務(wù)或?qū)淼男袨?當不定式的邏輯主語不是句子的主語時,不定式是表語,表示主語的內(nèi)容或性質(zhì)。如:Eg:Wearetokeeporderinthestreet.我們將去街上維持秩序。(將來時)Ourjobistokeeporderinthestreet.我們的工作是維持街上的秩序。(系表結(jié)構(gòu))五、不定式做表語相關(guān)練習1.DrZhongNanshanthinksthatthedoctors’dutyis_totreat(treat)patientsandsavetheirlives.2.Whatwe'retryingtodois_tosave(save)Earth.3.Hethoughtthatthehardestthingwastocontrol(control)thespreadofthediseasefrompersontoperson.4.Shelovedhunting,butallthatshewantedtoknowwashow_tooperate(operate)herwheelchairinthewild.5.Ourtasktodayistodo(do)somevoluntaryworkinthenursinghome.6.Whattheywantedwas_tobeleft(leave)aloneandthinkaboutwhattodonext.7.ThebestwaytoimproveyourEnglishistowork(work)hardatit.8.Thebiggestaimofeducationinschoolsistoinspire(inspire)studentstobe(be)creative.9.Ithinkallwehavetodofirstis_(to)strengthen(strengthen)confidence.10.Heronlyaimwas_tobuild_(build)herschoolfootballteam.11.Theoldlady'sgoalwas_tobetaken(take)goodcareofinanursinghome,12.Whenyouarefacedwithadangeroussituation,mysuggestionis_tokeep（keep)calmfirst.13.Ithinkthehardestthingmightbehowtopersuade(persuade)himtochange(change)hismind.14.Mybiggestambitionistobeadmitted(admit)asape