1、状语从句中的谓语动词是系动词be时:1.1、当从句主语与主句主语相同时,只要去掉从句中的连接词与主语并把be改为being.即可。Asheisatailor,heknowswhattodowiththismaterial.—Beingatailor,heknowswhattodowiththismaterial.1.2、从句的主句主语与从句主语不同时,只要保留从句的主语,其它变化同以上1.1。Asheisstillachild,youshouldn'tbetoohardonhim.—Hebeingstillachild,youshouldn'tbetoohardonhim.1.3、当从句是否定句时,只要在being前加否定词not,其它变化同以上1.2。Ashewasnotallenough,hecouldn'treachfortheapple.—Nobeingtallenough,hecouldn'treachfortheapple.2、当从句的谓语动词是进行时态(现在进行时态或过去进行时态)时:2.1、当从句主语与主句主语相同时,只要去掉从句中的引导词与主语并去掉助动词be保留现在分词即可。有时为了强调进行状态,亦在分词前保留being.Whilehewasreadingthebook,henoddedfromtimetotime.—Whilereadingthebook,henoddedfromtimetotime2.2、当从句与主句的主语不同时,除保留从句主语外,其他变化同以上2.1Whenhewasgivingatelephonecall,hiswifewasreadinganovel.—Hegivingatelephonecall,hiswifewasreadinganovel2.3、当从句是含not的否定句时,只要在being前加否定词not,其它变化同以上1.1与2.2AsTomisnotworkinginhisoffice,Noonereceivesthetelephone.—Tomnotworkinginhisoffice,noonereceivesthetelephone.3、当从句中的谓语动词为一般时态(一般现在时与一般过去时)的实义动词时:3.1、当从句主语与主句主语相同时,只要去掉从句主语并将实义动词改为现在分词即可Lookroundwhenyoucrossthestreet.—Lookroundwhencrossingthestreet.3.2、当从句与主句的主语不同时,只要保留主语,其他变化同以上3.1Whentheylefttheairport,wewavedagainandagaintothem.—Theyleavingtheairport,wewavedagainandagaintothem.3.3、当从句是含not的否定句时,只要在现在分词前加not,其他变化同以上3.1与3.2Ashedidn'tknowanythingabouttheaccident,hewenttoworkasusual.—.Notknowinganythingabouttheaccident,hewenttoworkasusual.4、当从句的谓语动词是一般时态(一般现在时与一般过去时)的被动态时:4.1、当从句主语与主句主语相同时,只要去掉从句中的连词与主语并去掉be保留过去分词即可。Astheteacherwassurroundedtightlybyagroupofstudents,hecouldn'tgetaway.—Surroundedtightlybyagroupofstudentstheteachercouldn'tgetaway.4.2、当从句与主句的主语不同时,只要保留主语,其他变化同以上4.1A.Asthecarwastrappedinthesand,wehadtogoforhelp.—Thecartrappedinthesand,wehadtogoforhelp.4.3、当从句是含not的否定句时,只要在过去分词前加not外,其他变化同以上4.1与4.2Ashewasnotkilleddeadinthefield,heescapedattheverynight.—Notkilleddeadinthefield,heescapedattheverynight.5、当从句的谓语动词是完成时态(现在完成时与过去完成时)时:5.1、当从句主语与主句主语相同时,只要去掉从句中的连词与主语并将had/has/have改为having即可。Afterthewriterhadfinishedthebook,hetriedtofindapublisher.—Havingfinishedthebook,thewritertriedtofindapublisher.5.2、当从句与主句的主语不同时,除保留从句主语外,其他变化同以上5.1Asthestormhaddestroyedtheirhut,theyhadtoliveinacave.—Thestormhavingdestroyedtheirhut,theyhadtoliveinacave.5.3、当从句是含not的否定句时,除在having前加not外,其他变化同以上5.1与5.2。Ashehadnotreceivedareply,hedecidedtowriteagain.—Nothavingreceivedareply,hedecidedtowriteagain.6、当从句中的谓语动词是被动语态完成式时:6.1、当从句主语与主句主语相同时,只要去掉从句中的连词与hadbeen/havebeen/hasbeen并保留过去分词即可,有时也可只去掉从句中的连词与主语并将从句中的have/had/has改为Having,这种方式是为了强调完成。Ifthetreeshadbeengivenmoreattention,theycouldhavegrownbetter.—(Havingbeen)Givenmoreattention,thetreeswouldhavegrownbetter...