从句与非谓语之间的转换.doc
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从句与非谓语之间的转换.doc
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从句与非谓语之间的转换
一、当从句的主语与主句的主语一致(定语从句的主语与先行词一致),如果从句中是:
1)从句用be动词作谓语
be+doing;省略be;(例10)
be+done;省略be;(例4)
be+介词短语;省略be;(例2)
be+形容词/副词;be变为being;(例9)
be+名词;be变为being;(例1)
2)如果从句中是其他行为动词作谓语
是一般现在时或一般过去时就一律用doing的进行时化简;(例3)
是完成时态或after引导的一般时态,用havingdone化简。
(例7和11)
二、当状语从句的主语与主句的主语不一致时,也可按上面第一条中方法化简复合句。
化简后的短语前加上原从句中的主语即可(既是独立主格结构)。
(例5、6、8)
1.Whenhewasayoungboy,heusedtoasklotsofquestions.=Beingayoungboy,heusedtoasklotsofquestions.
2.Whenhewasintheclassroom,hereadhisbookaloud.=Intheclassroom,hereadhisbookaloud.
3.TheywenttotheteacherforhelpwhotaughtthemEnglish.=TheywenttotheteacherteachingthemEnglishforhelp.
4.Whentheearthisseenfromspace,itlookslikeahugewaterball.=Seenfromspace,theearthlookslikeahugewaterball.
5.Whenaguestcomestoyourroom,youcansaytohim"Haveaseat,please".=Aguestcomingtoyourroom,youcansaytohim"Haveaseat,please".
6.Whenhismotherenteredhisroom,hewasplayingthecomputergame.=Hismotherenteringhisroom,hewasplayingthecomputergame.
7.Afterthetwopolicemenenteredtheroom,theyturnedoffthelightandwaitedtheresilently.=Havingenteredtheroom,thetwopolicementurnedoffthelightandwaitedtheresilently.
8.Becausetherewasnobus,Ihadtowalkhome.=Therebeingnobus,Ihadtowalkhome.
9.Sinceitisfinetoday,weshouldhaveanoutingthisafternoon.=Itbeingfinetoday,weshouldhaveanoutingthisafternoon.
10.Whileyouarecrossingthestreet,youshouldbecareful.=Whilecrossingthestreet,youshouldbecareful.
11.Whenyouhavefinishedyourhomework,youmaygohome=Havingfinishedyourhomework,youmaygohome.
化简:
注意当时间状语从句或条件状语从句化简时可以将引导从句的连词带上,如(例10)。
1.Whenyouareindoubtaboutthetruthofthisstory,youmayaskourheadteacher.
2.Wheneveryouareintrouble,youcancountonoursupport.
3.Aftertheleavesonthetreesturndry,thetreeshavedied.
4.SinceyouaretogotoBeijingthisafternoon,youshouldgeteverythingreadybefore12.
5.Thisisthefamousprofessor,whoisinterestedincomputerdesign.
6.Ifheisnotintheoffice,hemustbeoutforlunch.
7.Heisthenaughtyboywhowasbeatenbyhisfatheryesterday.
8.Theoldteacher,whoworksinthatkeyschool,isgoingabroadsoonasavisitingscholar.
9.AssoonashegottoNanjing,hetelephonedme.
10.HeworkssohardthathecanenterQinghuaUniversity.
11.Ifyoucomeearliertomorrow,IwillhelpyouwithyourEnglish.
12.Whenhecamebackhome,IwaswatchingTVplay.
13.Thehead-teacher,whofollowedagroupofstudents,wentintotheoffice.
14.Assoonasheheardthenews,hejumpedwithjoy.
15.Thedictionarywhichcontainsalotofexamplesandpicturesinithasbeenpublished.
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