选修8unit1语法版市公开课一等奖省赛课微课金奖PPT课件.pptxVIP

英语课件人教课标版高二选修8Unit11/70Grammar2/70Lookatthefollowingclausesinthesentencesandthinkaboutwhatroledotheseclausesplayinthesentences.WhatattractspeopletoCaliforniaisitspleasantclimateandrelaxedlifestyle.ThisiswhyeachyearagreatnumberofpeoplefromallovertheworldtrytoimmigratetoCalifornia.However,mostapplicantsknowthattheyhaveverylittlechanceofgettingavisa.主语表语宾语3/70名词性从句1.概念在句子中起名词作用句子叫名词性从句(NounClauses)。名词性从句功效相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,所以依据它在句中不一样语法功效,名词性从句又可分别称为主语从句(SubjectClause)、宾语从句(ObjectClause)、表语从句(PredicativeClause)和同位语从句(AppositiveClause)。4/70Whathewantstotellusisnotclear.Ibelieve(that)heishonest.Thequestioniswho(whichofyou)willbethenextspeaker.Thenewsthathehadlandedonthemoonspreadallovertheworld.主语从句宾语从句表语从句同位语从句5/702.引导名词性从句连接词可分为三类:连接词/隶属连词that,whether,if?不充当从句任何成份连接代词:what,whatever,who,whoever,whom,whose,which.连接副词:when,?where,?how,?why6/703.不可省略连词：1)介词后连词2)?引导主语从句和同位语从句连词不可省略。That?she?was?chosen?made?us?very?happy.We?heard?the?news?that?our?team?had?won.7/70SubjectClause(主语从句)ObjectClause(宾语从句)PredicativeClause(表语从句)Nounclause8/70主语从句使用方法一、主语从句在复合句中作主语,它可以位于句首,但常见主语从句多放在句末,句首则用形式主语it。Thattheearthisroundistrue.=Itistruethattheearthisround.9/702.Whetherhewillcomehasn’tbeendecided.=Ithasn’tbeendecidedwhetherhewillcome.注意:连词that,whether在从句中不担任 句子成份,只起连接作用,不能省略 (注:if不可用来引导主语从句）10/70二、用it作形式主语结构(1)Itis＋名词＋从句Itisafactthat…事实是……Itisanhonorthat……非常荣幸Itiscommonknowledgethat…是常识(2)Itis＋形容词＋从句(多用should)Itisnaturalthat…很自然……Itisstrangethat…奇怪是……11/70(3)Itis＋不及物动词＋从句Itseemsthat…似乎……Ithappenedthat…恰巧……Itappearsthat…似乎……(4)Itis＋过去分词＋从句Itisreportedthat…据报道……Ithasbeenprovedthat…已证实…Itissaidthat…听说……12/70Itiscertainthathewillcome.ItissaidthatsomeAmericanfriendswillvisitourschoolnextweek.It