一．用“及物动词+不定式”结构可以将含有that引导的某些宾语从句的复合句转换成简单句.例如：

　　1.Hedecidedthathewouldbuyadigitalcameraonline.→Hedecidedtobuyadigitalcameraonline.

　　2.Wehopedthatwewouldcomebacksoon.→Wehopedtocomebacksoon.

　　3.IexpectthatIshallfinishmyworkbythisSunday.→IexpecttofinishmyworkbythisSunday.

　　二．用“疑问词+不定式“结构可以将某些含有连接代词或连接副词引导的宾语从句转换简单句.例如：

　　1.Idon’tknowwhichoneIcanbuy.→Idon’tknowwhichonetobuy.

　　2.Wewonderwherewe’llgothisSunday.→WewonderwheretogothisSunday.

　　3.CouldyoupleaseteachmehowIcansearchtheInternet?→CouldyoupleaseteachmehowtosearchtheInternet?

　　三．用“too…to…”结构可以将含有so…that引导的结果语从句(否定)的复合句转成简单句.如：

　　1.Theboyissoyoungthathecan’tlookafterhimself.→Theboyistooyoungtolookafterhimself.

　　2.ThequestionissodifficultthatIcan’tanswerit.→Thequestionistoodifficultformetoanswer.

　　四．用“…enough+不定式”结构可以将含有so…that…引导的结果状语从句（肯定）的复合句转变为简单句.例如：

　　1.Thegirlissotallthatshecanreachtheapplesonthetree.→Thegirlistallenoughtoreachtheapplesonthetree.

　　2.Thishallissolargethatitcanhold2000people.→Thishallislargeenoughtohold2000people.

　　3.Thetablewassolightthatthelittleboycancarryit.→Thetablewaslightenoughforthelittleboytocarry.

　　五．用“happen+不定式”或“seem+不定式”结构可以分别将“Ithappensthat…”和“Itseemsthat…”等含有主语从句的复合句转换为简单句.例如：

　　1.Ithappenedthattheteachersawhimplayinginclass.→Theteacherhappenedtoseehimplayinginclass.

　　2.Itseemedthatsharkshavebeenontheearthforthousandsofyears.→Sharksseemedtohavebeenontheearthforthousandsofyears.

　　3.Itseemedthatthiscameraofferedthemostatthebestprice.→Thiscameraseemedtoofferthemostatthebestprice.

　　六．用“inorder+不定式”或“soas+不定式”结构可以将含有sothat引导的目的状语从句的复合句转换为简单句.如：

　　1.Shedecidedtobuyacameraonlinesothatshecouldreceiveitsoon.→Shedecidedtobuyacameraonlineinordertoreceiveitsoon.

　　→Shedecidedtobuyacameraonlinesoastoreceiveitsoon.

　　2.IwentovermycompositionagainandagainsothatIcouldn’tmakeanymistakes.→Iwentovermycompositionagainandagaininordernottomakeanymistakes.

　　→Iwentovermycompositionagainandagainsoasnottomakeanymistakes.

　　3.MiyokoboughtacamerasothatshecouldtakepicturesinBeijing.→MiyokoboughtacamerainordertotakepicturesinBeijing.

　　→MiyokoboughtacamerasoastotakepicturesinBeijing.

　　七．在某些作表语的形容词后面加不定式可以将某些含有状语从句的复合句转变成简单句.例如：

　　1.IwasgladwhenIheardthegoodnews.→Iwasgladtohearthegoodnews.

　　2.Tom’sparentswereverysurprisedastheyknewallaboutit.→Tom’sparentswereverysurprisedtoknowallaboutit.