【优化课堂】高中英语 Unit3 period ⅱ grammar课件 新人教版必修5.ppt

period grammar 过去分词用法 作状语和定语 worriedaboutthejourney iwasunsettledforthefirstfewdays exhausted islidintobedandfellfastasleep sooniwasbackonmyfeetagainandfollowinghimtocollectahoveringcarriagedrivenbycomputer ifoundlaterthattheirleavesprovidedtheroomwithmuch neededoxygen 一 过去分词作状语 过去分词有两大特点 一是表示被动 二是表示动作已完成 过去分词作状语修饰谓语动词 说明动作发生时的背景或状况 其逻辑主语通常是句子的主语 过去分词 短语 常可作以下几种状语 1 时间状语 可转换为时间状语从句 也可在过去分词前加上连词when while until等 使其时间意义更明确 如 seenfromthehill thesurroundingsofthesevillageslook verybeautiful whentheyareseenfromthehill thesurroundingsofthese villageslookverybeautiful 从山上看 这些村庄的环境非常美丽 2 原因状语 可转换为as since because等引导的原因状 语从句 如句 可转换为 as sinceiwasworriedaboutthejourney iwasunsettledfor thefirstfewdays 因为担心这次旅行 头几天我心里总是不踏实 as sinceiwasexhausted islidintobedandfellfastasleep 由于太累了 我爬上床很快就睡着了 3 条件状语 前面可加连词if unless等 也可转换为条件 状语从句 如 givenmoreattention thecabbagescouldhavegrownbetter iftheyhadbeengivenmoreattention thecabbagescould havegrownbetter 多花些精力 这些卷心菜会长得更好 4 让步状语 有时可加although though evenif eventhough whether or 等连词 也可转换为让步状语从句 如 thoughwarnedofthestorm thefarmerswerestillworkingin thefields thoughtheyhadbeenwarnedofthestorm thefarmers werestillworkinginthefields 虽然农民已被警告将有暴风雨 但他们仍在地里干活 thismaterialdoesn texpandwhetherheatedornot thismaterialdoesn texpandwhetheritisheatedornot 这 种物质无论加热与否均不膨胀 5 方式状语 若有连词asif 可转换为asif引导的方式状 语从句 若无连词 可转换为并列结构 如 hebegantocryasifbittenbyasnake hebegantocryasifhewasbittenbyasnake 他大叫起来 好像被蛇咬了 sheisright hesaid pleased sheisright hesaid andhewaspleased 他高兴地说 她是对的 6 伴随状语 一般可转换为并列结构 如 theteacherenteredtheclassroom followedbyagroupofhis students theteacherenteredtheclassroom andhewasfollowedby agroupofhisstudents 老师走进教室 后面跟着一群学生 二 过去分词作定语 过去分词作定语多表示已完成的动作 还可表示被动 当作定语时 单个分词一般放在所修饰的名词之前 如句 分词短语则必须放在所修饰的名词之后 相当于一个定语从句 如句 中的drivenbycomputer that whichwasdrivenbycomputer 一 用所给单词的适当形式填空 1 whataboutthespeech give bythepresident lastnight wonderful 2 ask whyshegaveupherwell paidjob miss greensaidthatshewantedtobeaprimaryschoolteacher 3 whenfirst introduce tothemarket these productsenjoyedgreatsuccess 4 if keep fortoolong somemedicinewilllose given asked introduced kept theireffectiveness 5 face withsomuchtrouble wefailedto completethetaskontime 6 wearegoingtoputforwardthesuggestion discuss atthelastmeeting 7 itisknowntoallthattheunitedstatesisthemost advance countryintheworld 8 someofthem bear and bring upin thesmallvillage hadneverseenatrain 9 though defeat bytheyoungplayerforthe secondtime hedidn tloseheart faced discussed advanced born brought defeated 10 absorb intheresearchwork hehadnotimeto takepartinanyactivities 11 the injure workersaretakengoodcareofin thehospital 12 thestudentshavesweptupthe fall leaves absorbed injured fallen 二 将下列从句改为过去分词短语作状语 a 时间状语 1 generallyspeaking whenthedrugistakenaccordingtothe directions ithasnosideeffect 2 whenthesunrisewasseenfromthetopofmounttai it wasindeedaspectacle generallyspeaking takenaccordingtothedirections thedrughasnosideeffect seenfromthetopofmounttai thesunrisewasindeedaspectacle b 原因状语 3 sincewearegreatlyencouragedbywhattheteachersaid wehavemadeupourmindtostudyevenharder 4 asshewasgivenadvicebythefamousdetective theyoung ladywasnolongerafraid greatlyencouragedbywhattheteachersaid wehavemadeupourmindtostudyevenharder givenadvicebythefamousdetective theyoungladywasnolongerafraid c 条件状语 5 ifweareunited wewillovercomeanytrouble 6 ifihadbeengivenmoretime iwouldhavesolvedthe mathproblem ifunited wewillovercomeanytrouble givenmoretime iwouldhavesolvedthemathproblem d 让步状语 7 thoughhewasleftaloneathome samdidnotfeelafraid atall 8 thoughhehasbeenencouragedbyhisparentsseveral times hestillhasnoconfidenceinovercomingthedifficulties thoughleftaloneathome samdidnotfeelafraidatall thoughencouragedbyhisparentsseveraltimes hestillhasnoconfidenceinovercomingthedifficulties e 方式状语 9 heseemsasifhewerehitbythelightning 10 hearingthenews thegirlturnedaway andshewas disappointed heseemsasifhitbythelightning hearingthenews thegirlturnedaway disappointed f 伴随状语 11 themonitorcameintotheclassroom andhew