名词性从句句型在写作中的运用课件.pptVIP

一.基本概念：名词性从句的功能相当于名词，它在句子中充当主语、宾语、表语和同位语。结构是句子+引导词+句子，关键是要抓对引导词。列表如下：

二.名词性从句常用句型1.It作形式主语的几种主语从句Itbe+adj.+that…Itbe+noun+that…It+verb.+that…Itbe+p.p+that…

（1）Itis+adj.+从句It’scertainthat…肯定…Itispossiblethat...很可能…sbbepossibletodo(x)Itis(un)likelythat...(不）可能=sbbelikelytodo(v)Itisobviousthat…很明显…Itisclearthat…很清楚…虚拟语气Itisimportant(vital,necessary,essential,surprisingnatural,strange，…)that+….(should)do…

（2）Itis+n.+从句It’snowonderthat…难怪….Itisapity/shamethat...遗憾的是……Itisasurprisethat…令人惊奇的是…Itisafactthat……是事实Itiscommonknowledge/sensethat……是常识句式辨析Itisnowonderthat…难怪Thereisnodoubtthat…毫无疑问Thereisnoneedforsbtodo…没有必要做某事that….+clause…

（3）It+be+过去分词+从句Itissaidthat...据说……Itisknowntoallthat...众所周知……,我们都知道…＝Asweknow,…=Asisknowntoall,…Itisreportedthat...据报道……Itisbelievedthat...据信……;人们相信……Itisestimatedthat…据估计…Itislearnedthat…据悉，人们得知…Itmustbeadmittedthat…必须承认……Itcannotbedeniedthat…不可否认……Itmustbepointedoutthat…需指出的是……Itissaid/reported/learned/estimated/well-known/believedthat….据说/据报道/据悉/据估计…=sb/sth.isreported….todo/tohavedone/bedoing...

虚拟语气Itissuggestedadvisedthat+(should）do...建议……proposedItisorderedcommandedthat+(should）do...命令……Itisrequired(要求)requested（请求）that+(should）do...

（4)It+不及物动词+从句It(so)happensthatsb…=sb.happenstodo某人碰巧做某事Itseems/appearsthat….似乎….Itlooksasif/though…看上去好像…Itdoesn’tmatterwhether/wh-…不论（是否）…没关系Itdoesn’tmakeanydifference/makesnodifference(tosb.)whether/wh-...不论（是否）…不重要，没影响Itoccurredtosb/strucksbthat…某人突然想到…Itdidn’toccurtosbthat…某人没想到…Itneveroccurredtosbthat…某人从没想到…Itturnsoutthat….结果是…

2.宾语从句1it用作形式宾语think(consider,suppose,believe,find,feel,make,…)+it+adj./n.+that….makeitarule/clear/(im)possible/knowntodo/that…takeitforgrantedthat…/takeitintoconsiderationthat…2Idoubtwhether/wh-Idon’tdoubtthat…Doy