人教版英语选修6 Unit5 The power of nature 3(ppt).ppt

unit5thepowerofnature period3learningaboutlanguage step1discoverusefulwordsandexpressions 1 watchthevideoofanepisodeofvesuviuseruption 2 lookatsomepicturesofvesuviusvolcanoandlearnaboutit thismountainhaseruptedmorethan50timessincetheeruptionin79ad whenitburiedpompeiianditssistercity herculaneum afterpompeiiwasburiedandlosttohistory thevolcanocontinuedtoeruptevery100yearsuntilabout1037a d whenitentereda600 yearperiodofquiescence in1631 thevolcanokilledanadditional4000unsuspectinginhabitants mountvesuvius 1 completethetextwiththewordsbelowintheirproperforms theeruptionofmountvesuviusin79adtookpeopleinpompeiibysurprise itwassoquickandsoseverethatthetownwassooncoveredin and manyhousesinthetownwere itwasan disasterformanypeoplewhocouldnotgetawayintime awriter ash lava burnedtotheground absolute namedpliny whowasthereduringthe describedhowlavawasthrownintotheairlikea manyofthetownspeople atthe sightofvesuviuseruption stayedtoolongandfailedtoescapeintime eruption fountain unfortunately amazed fantastic 2 findsuitablewordsorexpressionsfromthetextsintheunitsofartofillintheblanks 1 iwenttoateahousewithtwofriendslastweekendbutalltheytalkedaboutwasvolcanoes iwasso thatifellasleep 2 atouristveryfoolishlytookariskbywalkingrighttotheedgeofanactive bored volcano 3 icarefully overthefallenrocksandreturnedtothecar mademyway 4 nothingcan theexperienceofstandingclosetoanactivevolcanoforthefirsttime comparewith 5 canvolcanologistspredictwhenavolcanowill erupt 6 thesightofhotlavaenteringtheseaatdawnwas impressive step2grammarv ing的一般式和完成式 1 watchaflash fromtheflashwecanreviewthedifferencesbetweenv ingandthepastparticiple 现在分词表示主动 过去分词表示被动 b 现在分词表示进行中的动作 过去分词表示动作已完成 2 changethefollowingsentencesintov ingform 1 iwasfeelingtired iwenttobedearly 改成 feelingtired iwenttobedearly 相当于 asifelttired iwenttobedearly 2 iworkedhardallday iwenttobedearly 改成 havingworkedhardallday iwenttobedearly 相当于 afteriworkedhardallday iwenttobedearly 可以看出 a 分词的一般式说明分词的动作与主句的谓语动词的动作是同时发生的 b 分词的完成式说明分词的动作发生在主句谓语动词的动作之前 巩固练习 现在分词的一般式和完成式之间进行互换 1 studyingvolcanoes iamamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 改成 havingstudiedvolcanoesfortwentyyears iamstillamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 2 havingstoodforseveralminutes isawsomeofmyfriendschattingatatable 改成 arrivingthere isawsomeofmyfriendschattingatatable 3 writingtheletter heleftoutsomethingimportant 改成 havingwrittentheletter hereaditcarefully 3 用分词改写句子 1 asididn tknowhowtofindthesubway icalledapolicemanforhelp 改成 notknowinghowtofindthesubway icalledapolicemanforhelp 2 shedidn treceiveherfather sreply soshewrotealetteragain 改成 nothavingreceivedherfather sreply shewrotealetteragain 可以看出 分词的否定式是在分词前面加上否定词not 4 小结 ing形式的用法 1 ing形式作状语 2 ing形式的完成式 3 ing形式的否定式 5 使用 ing形式需注意的问题 分词 短语 作状语时 其逻辑主语必须与句子的主语一致 如果不一致 必须用独立主格结构来表示 也就是在分词前面加上它的逻辑主语 thetrainhavinggone wehadtowaitanotherday thetrain逻辑主语 havinggone即为独立主格结构 weatherpermitting wewillgoforapicnictomorrow weather逻辑主语 doing即为独立主格结构 6 watchaflash 巩固v ing形式作状语以及独立主格结构 7 findinthetextthesentenceswithv ingformsortheperfect ingform 8 finishexercise3 4 5 6onpage36andpage37 1 完成workbookp71 72的练习 homework 2 makeupadialogueaccordingtothesituation yourgroupgotoavolcanotocollectasampleofboilinglava takemeasurementinthecraterandflyoveravolcanotomakeamapofthedirectionofthelava youwillmeetalotofdifficultiesandhavetoovercomethem period3learningaboutlanguage step1discoverusefulwordsandexpressions 1 watchthevideoofanepisodeofvesuviuseruption 2 lookatsomepicturesofvesuviusvolcanoandlearnaboutit thismountainhaseruptedmorethan50timessincetheeruptionin79ad whenitburiedpompeiianditssistercity herculaneum afterpompeiiwasburiedandlosttohistory thevolcanocontinuedtoeruptevery100yearsuntilabout1037a d whenitentereda600 yearperiodofquiescence in1631 thevolcanokilledanadditional4000unsuspectinginhabitants mountvesuvius 1 completethetextwiththewordsbelowintheirproperforms theeruptionofmountvesuviusin79adtookpeopleinpompeiibysurprise itwassoquickandsoseverethatthetownwassooncoveredin and manyhousesinthetownwere itwasan disasterformanypeoplewhocouldnotgetawayintime awriter ash lava burnedtotheground absolute namedpliny whowasthereduringthe describedhowlavawasthrownintotheairlikea manyofthetownspeople atthe sightofvesuviuseruption stayedtoolongandfailedtoescapeintime eruption fountain unfortunately amazed fantastic 2 findsuitablewordsorexpressionsfromthetextsintheunitsofartofillintheblanks 1 iwenttoateahousewithtwofriendslastweekendbutalltheytalkedaboutwasvolcanoes iwasso thatifellasleep 2 atouristveryfoolishlytookariskbywalkingrighttotheedgeofanactive bored volcano 3 icarefully overthefallenrocksandreturnedtothecar mademyway 4 nothingcan theexperienceofstandingclosetoanactivevolcanoforthefirsttime comparewith 5 canvolcanologistspredictwhenavolcanowill erupt 6 thesightofhotlavaenteringtheseaatdawnwas impressive step2grammarv ing的一般式和完成式 1 watchaflash fromtheflashwecanreviewthedifferencesbetweenv ingandthepastparticiple 现在分词表示主动 过去分词表示被动 b 现在分词表示进行中的动作 过去分词表示动作已完成 2 changethefollowingsentencesintov ingform 1 iwasfeelingtired iwenttobedearly 改成 feelingtired iwenttobedearly 相当于 asifelttired iwenttobedearly 2 iworkedhardallday iwenttobedearly 改成 havingworkedhardallday iwenttobedearly 相当于 afteriworkedhardallday iwenttobedearly 可以看出 a 分词的一般式说明分词的动作与主句的谓语动词的动作是同时发生的 b 分词的完成式说明分词的动作发生在主句谓语动词的动作之前 巩固练习 现在分词的一般式和完成式之间进行互换 1 studyingvolcanoes iamamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 改成 havingstudiedvolcanoesfortwentyyears iamstillamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 2 havingstoodforseveralminutes isawsomeofmyfriendschattingatatable 改成 arrivingthere isawsomeofmyfriendschattingatatable 3 writingtheletter heleftoutsomethingimportant 改成 havingwrittentheletter hereaditcarefully 3 用分词改写句子 1 asididn tknowhowtofindthesubway icalledapolicemanforhelp 改成 notknowinghowtofindthesubway icalledapolicemanforhelp 2 shedidn treceiveherfather sreply soshewrotealetteragain 改成 nothavingreceivedherfather sreply shewrotealetteragain 可以看出 分词的否定式是在分词前面加上否定词not 4 小结 ing形式的用法 1 ing形式作状语 2 ing形式的完成式 3 ing形式的否定式 5 使用 ing形式需注意的问题 分词 短语 作状语时 其逻辑主语必须与句子的主语一致 如果不一致 必须用独立主格结构来表示 也就是在分词前面加上它的逻辑主语 thetrainhavinggone wehadtowaitanotherday thetrain逻辑主语 havinggone即为独立主格结构 weatherpermitting wewillgoforapicnictomorrow weather逻辑主语 doing即为独立主格结构 6 watchaflash 巩固v ing形式作状语以及独立主格结构 7 findinthetextthesentenceswithv ingformsortheperfect ingform 8 finishexercise3 4 5 6onpage36andpage37 1 完成workbookp71 72的练习 homework 2 makeupadialogueaccordingtothesituation yourgroupgotoavolcanotocollectasampleofboilinglava takemeasurementinthecraterandflyoveravolcanotomakeamapofthedirectionofthelava youwillmeetalotofdifficultiesandhavetoovercomethem period3learningaboutlanguage step1discoverusefulwordsandexpressions 1 watchthevideoofanepisodeofvesuviuseruption 2 lookatsomepicturesofvesuviusvolcanoandlearnaboutit thismountainhaseruptedmorethan50timessincetheeruptionin79ad whenitburiedpompeiianditssistercity herculaneum afterpompeiiwasburiedandlosttohistory thevolcanocontinuedtoeruptevery100yearsuntilabout1037a d whenitentereda600 yearperiodofquiescence in1631 thevolcanokilledanadditional4000unsuspectinginhabitants mountvesuvius 1 completethetextwiththewordsbelowintheirproperforms theeruptionofmountvesuviusin79adtookpeopleinpompeiibysurprise itwassoquickandsoseverethatthetownwassooncoveredin and manyhousesinthetownwere itwasan disasterformanypeoplewhocouldnotgetawayintime awriter ash lava burnedtotheground absolute namedpliny whowasthereduringthe describedhowlavawasthrownintotheairlikea manyofthetownspeople atthe sightofvesuviuseruption stayedtoolongandfailedtoescapeintime eruption fountain unfortunately amazed fantastic 2 findsuitablewordsorexpressionsfromthetextsintheunitsofartofillintheblanks 1 iwenttoateahousewithtwofriendslastweekendbutalltheytalkedaboutwasvolcanoes iwasso thatifellasleep 2 atouristveryfoolishlytookariskbywalkingrighttotheedgeofanactive bored volcano 3 icarefully overthefallenrocksandreturnedtothecar mademyway 4 nothingcan theexperienceofstandingclosetoanactivevolcanoforthefirsttime comparewith 5 canvolcanologistspredictwhenavolcanowill erupt 6 thesightofhotlavaenteringtheseaatdawnwas impressive step2grammarv ing的一般式和完成式 1 watchaflash fromtheflashwecanreviewthedifferencesbetweenv ingandthepastparticiple 现在分词表示主动 过去分词表示被动 b 现在分词表示进行中的动作 过去分词表示动作已完成 2 changethefollowingsentencesintov ingform 1 iwasfeelingtired iwenttobedearly 改成 feelingtired iwenttobedearly 相当于 asifelttired iwenttobedearly 2 iworkedhardallday iwenttobedearly 改成 havingworkedhardallday iwenttobedearly 相当于 afteriworkedhardallday iwenttobedearly 可以看出 a 分词的一般式说明分词的动作与主句的谓语动词的动作是同时发生的 b 分词的完成式说明分词的动作发生在主句谓语动词的动作之前 巩固练习 现在分词的一般式和完成式之间进行互换 1 studyingvolcanoes iamamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 改成 havingstudiedvolcanoesfortwentyyears iamstillamazedattheirbeautyaswellastheirpotentialtocausegreatdamage 2 havingstoodforseveralminutes isawsomeofmyfriendschattingatatable 改成 arrivingthere isawsomeofmyfriendschattingatatable 3 writingtheletter heleftoutsomethingimportant 改成 havingwrittentheletter hereaditcarefully 3 用分词改写句子 1 asididn tknowhowtofindthesubway icalledapolicemanforhelp 改成 notknowinghowtofindthesubway icalledapolicemanforhelp 2 shedidn treceiveherfather sreply soshewrotealetteragain 改成 nothavingreceivedherfather sreply shewrotealetteragain 可以看出 分词的否定式是在分词前面加上否定词not 4 小结 ing形式的用法 1 ing形式作状语 2 ing形式的完成式 3 ing形式的否定式 5 使用 ing形式需注意的问题 分词 短语 作状语时 其逻辑主语必须与句子的主语一致 如果不一致 必须用独立主格结构来表示 也就是在分词前面加上它的逻辑主语 thetrainhavinggone wehadtowaitanotherday thetrain逻辑主语 havinggone即为独立主格结构 weatherpermitting wewillgoforapicnictomorrow weather逻辑主语 doing即为独立主格结构 6 watchaflash 巩固v ing形式作状语以及独立主格结构 7 findinthetextthesentenceswithv ingformsortheperfect ingform 8 finishexercise3 4 5 6onpage36andpage37 1 完成workbookp71 72的练习 homework 2 makeupadialogueaccordingtothesituation yourgroupgotoavolcanotocollectasampleofboilinglava takemeasurementinthecraterandflyoveravolcanotomakeamapofthedirectionofthelava youwillmeetalotofdifficultiesandhavetoovercomethem step1discoverusefulwordsandexpressions 1 watchthevideoofanepisodeofvesuviuseruption 2 lookatsomepicturesofvesuviusvolcanoandlearnaboutit thismountainhaseruptedmorethan50timessincetheeruptionin79ad whenitburiedpompeiianditssistercity herculaneum afterpompeiiwasburiedandlosttohistory thevolcanocontinuedtoeruptevery100yearsuntilabout1037a d whenitentereda600 yearperiodofquiescence in1631 thevolcanokilledanadditional4000unsuspectinginhabitants mountvesuvius 1 completethetextwiththewordsbelowintheirproperforms theeruptionofmountvesuviusin79adtookpeopleinpompeiibysurprise itwassoquickandsoseverethatthetownwassooncoveredin and manyhousesinthetownwere itwasan disasterformanypeoplewhocouldnotgetawayintime awriter ash lava burnedtotheground absolute namedpliny whowasthereduringthe describedhowlavawasthrownintotheairlikea manyofthetownspeople atthe sightofvesuviuseruption stayedtoolongandfailedtoescapeintime eruption fountain unfortunately amazed fantastic 2 findsuitablewordsorexpressionsfromthetextsintheunitsofartofillintheblanks 1 iwenttoateahousewithtwofriendslastweekendbutalltheytalkedaboutwasvolcanoes iwasso thatifellasleep 2 atouristveryfoolishlytookariskbywalkingrighttotheedgeofanactive bored volcano 3 icarefully overthefallenrocksandreturnedtothecar mademyway 4 nothingcan theexperienceofstandingclosetoanactivevolcanoforthefirsttime comparewith 5 canvolcanologistspredictwhenavolcanowill erupt 6 thesightofhotlavaenteringtheseaatdawnwas impressive step2grammarv ing的一般式和完成式 1 watchaflash fromtheflashwecanreviewthedifferencesbetweenv ingandthepastparticiple 现在分词表示主动 过去分词表示被动 b 现在分词表示进行中的动作 过去分词表示动作已完成 2 changethefollowingsentencesintov ingform 1 iwasfeelingtired iwenttobedearly 改成 feelingtired iwenttobedearly 相当于 asifelttired iwenttobedearly 2 iworkedhardallday iwenttobedearly 改成 havingworkedhardallday iwenttobedearly 相当于 afteriworkedhardallday iwenttobedearly 可以看出 a 分词的一般式说明分词的动作与主句的谓语动词的动作是同时发生的 b 分词的完成式说明分词的动作发生在主句谓语动词的动作之前 巩固练习 现在分词的一般式和完成式之间进行互换