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Unit6Sunshineforall“Itis+adj.(+ofsb)+todosth”句型此句型意为“某人做某事真是/太……了”,其中It是形式主语,没有具体的意义,真正的主语是后面的动词不定式短语。该句型中的形容词描述的是人的特征、品质等。常用于此句型的形容词有good,kind,clever,right,nice,rude,wise,wrong,honest,generous,careful,careless,silly等。例如:It’sreallyverykindofyoutohelpmewiththehouseworkonSundays.你在星期天帮我做家务真的太好了。注意:1.在“Itis+adj.(+ofsb)+todosth”句型中,of后的宾语与动词不定式之间存在逻辑上的主谓关系,一般都可以转换成一个以of后的宾语为主语的句子。例如:Itisfoolishofthemtodoso.→Theyarefoolishtodoso.他们这样做真是愚蠢。2.该句型在表示不定式的否定意义时,需要在不定式前加not,即“Itis+adj.(+ofsb)+nottodosth”。例如:It’srudeofyounottobepolitetotheold.你对老人不礼貌真是粗鲁。“Itis+adj.(+forsb)+todosth”句型此句型意为“对某人来说做某事是……的”,其中It是形式主语,没有具体的意义,真正的主语是后面的动词不定式短语,介词for后面的人作动词不定式短语的逻辑主语。该句型中的形容词说明要做的事情本身的特点,如可能性、必然性或难易程度等。常用于此句型的形容词有important,necessary,possible,impossible,dangerous,safe,easy,hard,difficult,meaningful等。例如:It’snecessaryforhimtodoso.他有必要这么做。It’simpossibleforthechildrentofinishthehomeworkinsuchashorttime.孩子们不可能在这么短的时间内完成作业。Ⅰ.单项填空(A)1.ItwascarelessJacktomakemistakes.A.of;anumberofB.of;aplentyofC.for;anamountofD.for;alotof(C)2.It’snecessaryforustoourparentswhenwehaveproblems.A.talkB.talkingC.totalkD.totalking(D)3.It’sdangerousthechildrentoplayonthestreet.A.ofB.byC.withD.for(D)4.It’smeaningfulmoneythechildreninneed.A.toraise;supportB.raise;tosupportC.raise;supportD.toraise;tosupport(A)5.Itiseasyforastrangerinabigcity.A.togetlostB.gotlostC.getlostD.togettinglostⅡ.根据句意用介词for或of填空1.Itisnecessaryforusstudentstoimprovethelisteningability.2.Itwaskindofyoutogivemeyourseatonthebus.3.Itisdangerousforchildrentoswimintheriveralone.4.Itisnotwiseofthemothertogivehersonsomuchmoney.5.Itisreallyhardforthemtoclimbsuchahighmountain.Ⅲ.同义句转换,每空一词1.Tokeepourclassroomcleanisveryimportant.It’sveryimportanttokeepourclassroomclean.2.Sheisverygeneroustogiveeachofusagift.It’sverygenerousofhertogiveeachofusagift.3.Donatingmoneytotheelderlyismeaningfulforus.It’smeaningfulforustodonatemoneytotheelderly.4.Suzyisverykindandshelikestotakecareofothers.It’sverykindofSuzytotakecareofothers.5.Tothinkbeforeyouspeakisalwayswise.It’salwayswisetothinkbeforeyouspeak.