2019春八年級(jí)英語下冊(cè) Unit 6 Sunshine for all語法專練課件（新版）牛津版.ppt

Unit6Sunshineforall,“Itis+adj.(+ofsb)+todosth”句型此句型意為“某人做某事真是/太了”,其中It是形式主語,沒有具體的意義,真正的主語是后面的動(dòng)詞不定式短語。該句型中的形容詞描述的是人的特征、品質(zhì)等。常用于此句型的形容詞有g(shù)ood,kind,clever,right,nice,rude,wise,wrong,honest,generous,careful,careless,silly等。例如:ItsreallyverykindofyoutohelpmewiththehouseworkonSundays.你在星期天幫我做家務(wù)真的太好了。注意:1.在“Itis+adj.(+ofsb)+todosth”句型中,of后的賓語與動(dòng)詞不定式之間存在邏輯上的主謂關(guān)系,一般都可以轉(zhuǎn)換成一個(gè)以of后的賓語為主語的句子。例如:Itisfoolishofthemtodoso.Theyarefoolishtodoso.他們這樣做真是愚蠢。,2.該句型在表示不定式的否定意義時(shí),需要在不定式前加not,即“Itis+adj.(+ofsb)+nottodosth”。例如:Itsrudeofyounottobepolitetotheold.你對(duì)老人不禮貌真是粗魯。,“Itis+adj.(+forsb)+todosth”句型此句型意為“對(duì)某人來說做某事是的”,其中It是形式主語,沒有具體的意義,真正的主語是后面的動(dòng)詞不定式短語,介詞for后面的人作動(dòng)詞不定式短語的邏輯主語。該句型中的形容詞說明要做的事情本身的特點(diǎn),如可能性、必然性或難易程度等。常用于此句型的形容詞有important,necessary,possible,impossible,dangerous,safe,easy,hard,difficult,meaningful等。例如:Itsnecessaryforhimtodoso.他有必要這么做。Itsimpossibleforthechildrentofinishthehomeworkinsuchashorttime.孩子們不可能在這么短的時(shí)間內(nèi)完成作業(yè)。,(D)4.Itsmeaningfulmoneythechildreninneed.A.toraise;supportB.raise;tosupportC.raise;supportD.toraise;tosupport(A)5.Itiseasyforastrangerinabigcity.A.togetlostB.gotlostC.getlostD.togettinglost,.根據(jù)句意用介詞for或of填空1.Itisnecessaryforusstudentstoimprovethelisteningability.2.Itwaskindofyoutogivemeyourseatonthebus.3.Itisdangerousforchildrentoswimintheriveralone.4.Itisnotwiseofthemothertogivehersonsomuchmoney.5.Itisreallyhardforthemtoclimbsuchahighmountain.,.同義句轉(zhuǎn)換,每空一詞1.Tokeepourclassroomcleanisveryimportant.Itsveryimportanttokeepourclassroomclean.2.Sheisverygeneroustogiveeachofusagift.Itsverygenerousofhertogiveeachofusagift.3.Donatingmoneytotheelderlyismeaningfulforus.Itsmeaningfulforustodonatemoneytotheelderly.4.Suzyisverykindandshelikestotakecareofothers.ItsverykindofSuzytotakecareofothers.5.Tothinkbeforeyouspeakisalwayswise.Itsalwayswisetothinkbeforeyouspeak.,