"It"作形式主语Itis+n.+todosth./that从句“(做)某事是...”Itis+adj.+(forsb)todosth./that从句“(对某人而言)做某事是...的”Itissaid/reported/wellknown/estimated+that从句“据说/据报道/众所周知/据估计...”Itisnouse/good/worthdoingsth./that从句“做什么是没有用的/不好的/不值得的”(2014年作文—theharmofcomputergames)　　"It"作形式宾语主语+find/make/consider/think/feel/believe+it+adj./n.+todosth./that从句Iconsideritwrongthatmanycollegestudentsareaddictedtoplayingcomputergames.(2014年作文—theharmofcomputergames)　　Itis/was+被强调的部分+that/who(被强调部分指人两者都可以使用，指物只能用that)Itiscomputergamesthatareharmfultostudents’health.(2014年作文—theharmofcomputergames)Itis(high/about)+time+that从句(从句谓语：should+V.原/did)、“到了该做某事的时间了”Itishightimethatthecitygovernmentshouldtake/tooksomemeasurestosolvetrafficproblems.(2024年作文—mysuggestionsonsolvingtrafficproblems)Thereisnodoubtthat从句“毫无疑问”Thereisnodoubtthatplayingcomputergamesisharmfultostudents’health.(2014年作文—theharmofcomputergames)不但...而且...Playingcomputergameshasnotonlyanimpactonstudents’studies，butitalsodoesharmtotheirhealth.(2014年作文—theharmofcomputergames)倒装：Notonlydoesplayingcomputergameshaveanimpactonstudents’studies，butitalsodoesharmtotheirhealth.Onlyinthisway+半倒“只有这样”Onlyinthiswaywillthetrafficproblemsbesolvedoralleviated.(模拟题—mysuggestionsonsolvingtrafficproblems)so/such...that从句“如此...以至于”Somestudentsgetsoexcitedatcertaingamesthattheycanhardlycalmdownbeforebed，whichisnotgoodfortheirsleep.(2014年作文—theharmofcomputergames)thebestwaytodosth.“做某事最好的方法是...”Thebestwaytosolvethetrafficproblemsistorepairandwidensomeroads.(2024年作文—mysuggestionsonsolvingtrafficproblems)hadbetter(not)dosth.“最好(不要)做某事”Youhadbetternotusesmartphonestoomuchbecausetheyarebadforyoureyes.(2017年作文—additiontosmartphones)