Unit5Canada—“TheTrueNorth”LearningaboutLanguage主语从句宾语从句表语从句同位语从句1.Whatitwastobecomewasamystery.2.Idon’tknowwhowillhelpHenrytowinthebet.3.Histroubleisthathedoesn’tknowanybodyinLondon.4.Thefactthatshipscangotheresurprisesmanypeople.Whatkindofnounclausesarethey?nounclausessubjectiveclause主语从句objectiveclause宾语从句predicativeclause表语从句appositiveclause同位语从句Theappositiveclauseisaclauseusedasanappositive.Theclauseisanexplanationtothenounbefore.同位语从句属于名词性从句，大多由从属连词that引导，常常跟在fact,news,idea,thought,question,reply,report,remark,hope,belief等名词后面。同位语从句一般用来解释或说明这些名词的具体含义或内容，在逻辑上表现为同位关系。appositiveclause同位语从句Theyarefamiliarwiththeopinionthatallmatterconsistsofatoms.WheredidyougettheideathatIcouldnotcome.Wehaven’tyetsettledthequestionwherewearegoingtospendoursummervacation.Thesuggestioncamefromthechairmanthatthenewruleshouldbeadopted.Practice(3m)Findouttheappositiveclausefromthereadingtext.Theideathatyouwouldcrossthewholecontinentwasexciting.TheideathatyoucancrossCanadainlessthanfivedaysisjustwrong.Thefactthatoceanshipscangotheresurprisesmanypeople.同位语从句与that引导的定语从句（1）从先行词看同位语从句与名词之间在逻辑上是“主语+be+表语”的关系。该名词是需要做特殊说明的抽象名词。例如：Theyweredelightedatthenewsthattheirteamhadwon.Thenewswasthattheirteamhadwon.(2)从引导词来看引导词that在同位语从句中是连词，只起连接作用，无具体词，that不可省略；that在定语从句中是关系代词，它在从句中充当一定成分——主语或宾语，有具体词意，作宾语时还可以省略。Thefactory(that)wevisitedyesterdayisachemicalone.ThenewsthathewillleaveforShanghaiistrue.(3)同位语从句的简易判断方法同位语从句与其先行词在逻辑上是“主语+be+表语”的同位语关系。所以，可以在名词和从句之间加系动词be，使之构成一个新句子，如果合乎逻辑，句子通顺，则原句为同位语从句；定语从句是不能够用系表结构把先行词与从句连接起来的。如：Thebeliefthattheearthisflatisstillheldinsomecountries.Thebeliefisthattheearthisflat.4.能用于同位语从句...
