2017中考英語(yǔ)復(fù)習(xí)：介詞的省略在一些結(jié)構(gòu)中，動(dòng)名詞前面的介詞 in常?？梢允÷?;在另一些結(jié)構(gòu)中，介詞from常?？梢允÷浴Ｖ袑W(xué)生常見(jiàn)的這類(lèi)結(jié)構(gòu)有：bebusy(in)doingsthbekeptbusy(in)doingsthbeengaged(in)doingsthhavetrouble/difficulty(in)doingsthspendtime(in)doingsthpreventsb(from)doingsthstopsb(from)doingsthItisnouse(in)doingsomethingThereisnouse/good(in)doingsth但是，當(dāng)spendtimeindoingsth，prevent/stopsomebodyfromdoingsth中的spend，prevent和stop為被動(dòng)語(yǔ)態(tài)時(shí)，介詞 in和from一般不可省略。例如：Theyspentalargesumofmoney(in)buildingthetower. —Alargesumofmoneywasspentinbuildingthetower.Theheavyrainpreventedus(from)attendingthelecture. —Wewerepreventedfromattendingthelecturebytheheavyrain.由what，whose，how，when，whether等引導(dǎo)的名詞性從句或不定式短語(yǔ)作介詞賓語(yǔ)時(shí)，其前的of，about通?？梢允÷?。例如：Shehasnoidea(of)whattodo.I'mnotaware(of)howhegotit.Hehesitated(about)whattodonext.I'mtoooldtocare(about)whatIlooklike.引導(dǎo)時(shí)間段的介詞for和表示行為方式的way前面的介詞in常可省略。例如：Thesnowyweatherlasted(for)twoweeks.Helivedalone(for)tenyears.Don'ttreather(in)thatway.表示時(shí)間段的for短語(yǔ)出現(xiàn)在句首或否定句中時(shí)，for一般不能省略。例如：Wehaven'tseeneachotherfortwoyears.Formanyyears，helivedintheshedalone.sizeage，color，weight，length，width，height，design，shape，size等名詞作介詞of的賓語(yǔ)，而且of短語(yǔ)在句中作表語(yǔ)時(shí)，of可以省略。例如：Thetwomachinesare(of)thesamedesign.Theboysare(of)thesameheight.Itis(of)nousetome.1、快速鎖屏現(xiàn)代人的電腦充滿了各種商業(yè)機(jī)密與隱私，上班時(shí)間喝個(gè)茶水都害怕電腦被“偷窺” 。電腦它自己也會(huì)保護(hù)自己哦，只要你離開(kāi)之前按下快捷鍵： Windows+L,就能快速鎖住電腦屏幕哦，媽媽再也不用擔(dān)心我的機(jī)密泄