“独立主格结构”也叫“独立结构”,把复合句变成一个简单句.它与真正的句子的不同之处：句子要有谓语动词,而独立结构是“非谓语动词”,即,逻辑谓语,或其它词性,有以下种类：注：括号表示可以省略. 　　1)ing动词作逻辑谓语（表示主动的含义） 　　e.g.Thestormhavingdamagedeverything,manypeoplebecamehomeless. 　　Johnarrivinghome,Maryaskedhimtodine. 　　Therebeingnothingtodo,weplayedgame.(therebe) 　　Timepermitting,Icanfinishinonehour.(IfIamgivenenoughtime…) 　　2)ed动词作逻辑谓语(表示被动的含义) 　　e.g.Herushedintotheroom,hishead(being)coveredwithsnow. 　　Allthings(being)considered,hehasdonehisbest. 　　Thejob(being)finished,wewenthomestraightaway. 　　Thefirstproblem(being)solved,thesecondwillbefoundeasier. 　　Thetable(being)set,webegantodine. 　　Somuchmoneyhavingbeenspent,wehaven’tseenanygoodresult. 　　3)不定式动词做逻辑谓语(表示将来的含义) 　　e.g.Inowpayyouhalfthesum,theotherhalftobepaidnextmonth. 　　Theplanwasthatthetwopartiesshouldfirstreachanagreementonthebasicprinciple,thedetailstobeworkedoutlater. 　　4)“主系表”句型里的形容词或其它词性 　　e.g.Thechildrenwerewatchingtheacrobaticshow,theireyes(being)wideopen. 　　Theweather(being)fine,wewentoutforawalk. 　　Hesatthere,hisface(being)seriousandhisattention(being)steady. 　　5)以上部分都可以在前面加用“with”“without” 　　e.g. 　　a)V-ing 　　Withnightcomingon,wehurriedhome. 　　Ireadnewspaperswiththemorningsunshiningthroughthewindow. 　　Finallyshecamewithoutanyoneaccompanyingher. 　　Istoleawaywithoutanyonenoticingme. 　　b)V-ed 　　Withthetreeplanted,wegettired. 　　Withthetreegrown,wegetmoreshade. 　　Theysatfacetoface,withoutasinglewordsaid. 　　Heenjoyedlisteningtomusicwithhiseyesclosed. 　　c)To-V 　　WhatistobecomeofMissHilarynow,withherparents(being)gonesoquickly,andwithnobodytolookafterher?x09 　　D)其它词性 　　Hewentawaywiththelight(being)stillon. 　　Thelittlegirlcametome,witheyes(being)red.