高中英语人教版 (2019)选择性必修 第二册Unit 2 Bridging Cultures教学课件ppt

这是一份高中英语人教版 (2019)选择性必修 第二册Unit 2 Bridging Cultures教学课件ppt，共26页。PPT课件主要包含了Leading-in，Part1，Leading in，Part2，Part3等内容，欢迎下载使用。
While-class
After-class
Read the passage and find mre nun clauses frm the reading passage and state the types f nun clauses and then summarise the usages f the cnjunctins—what and that.
1. verwhelming 词性_______ 意思________verwhelming victry 压倒性的胜利the verwhelming majrity 绝大多数verwhelm v. 淹没；覆盖；压倒verwhelm… with… 使……对……措手不及verwhelm… by 以……压倒……
2. mtivated词性_______ 意思________mtivate vt. 成为……的动机；激发；激励mtivatin n. 动力；积极性；动机ne's mtivatin fr (ding) sth. 某人做某事的动机be mtivated by… 受……激励/激发；出于……的动机
3. expectatin词性_______ 意思________in expectatin f 期待；期望live up t ne's expectatins 符合某人的期待expect vt. 预料，预期；期待expect t d sth. 期望做某事expect f 对……期望/期待
4. expsure词性_______ 意思________expsure t sth. 暴露于……expse … t… 显露或暴露于……expse vt. 使接触；使体验；显露；使暴露于（险境）expse neself t … 使自己面临……；使自己暴露于……be expsed t 暴露于……
名词性从句名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句可分为主语从句、表语从句、宾语从句和同位从句。　　(一) 引导名词性从句的连接词　　1. 连接代词：wh， whse， whm， what， which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。　　2. 连接副词：when， where， why， hw。有词义，在从句中担任成分，作状语。
3. 连接词：that， whether， if， as if。that 无词义，在从句中不担任成分，有时可省略；if (whether)， as if虽有词义，但在从句中不担任成分。注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分，连接词whether 和if(是否)，as if(好象)在从句中不充当句子成分，只起连接作用。根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词(that本身无任何含义)。
　(二)主语从句　　1、主语从句在复合句作主语。　 Wh will g is nt imprtant.　　2、用it作形式主语，主语从句放在句末。　　It desn't matter s much whether yu will cme r nt.
3、that引导主语从句时，不作成分，不能省略。That he suddenly fell ill last week made us surprised.4. 用it作形式主语的常用句型① It + be + 及物动词的过去分词+从句It is said that… 据说……It is reprted that… 据报道……It is believed that… 人们相信……
② It + be+名词+从句It is a fact that… 事实是……It is gd news that… ……是个好消息③ It +be+形容词+从句It is necessary that… 有必要……It is imprtant that… 重要的是……④ It seems/appears/happens/… +主语从句
　　(三)表语从句　　1、表语从句在复合句中作表语，位于系动词之后。　　 The questin was wh culd g there.　　2、表语从句的引导词与主语从句和宾语从句的引导词基本相同，但是if不能引导表语从句。3、连接词 that, whether引导表语从句，连接词一般不能省略。The questin is whether we shuld recmmend the gds t the shpkeeper.4、连接副词when, where, why, hw 引导表语从句，连接词在从句中作状语、表语。That was hw Peter gt his bachelr's degree.
5、连接代词 what, which, wh, whm, whse引导表语从句，连接词在从句中可作主语、表语、宾语或定语。That's what we want t purchase.6、有时 because, as if, as thugh 也可以引导表语从句。It lks as if yu have made full preparatins fr the final exam.
　(四)宾语从句　　1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。　　 I hpe (that) everything is all right.　　2、介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。　　I'm interested in whether yu've finished the wrk..　　I'm interested in what yu've said.
　3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。　　①宾语从句是否定句时，只用if，不用whether。　　I wnder if it desn't rain.　　②用if 会引起误解，就要用whether。　　Please let me knw whether yu want t g.(此句如果把whether改成if，容易当成条件句理解)　　③宾语从句中的whether 与r nt直接连用，就不能换成if；不直接连用，可换。　　I dn't knw whether r nt the reprt is true.　　I dn't knw whether/ if the reprt is true r nt.
　　④介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时，只能用if，而不能用whether。　　It depends n whether we have enugh time.　　They dn't knw whether t g there.Please cme t see me if yu have time.
4、连接副词when, where, why, hw引导宾语从句，连接词在从句中作状语。We haven't decided when we'll g hiking.我们还未决定何时去远足。5、连接代词 what, which, wh, whm, whse引导宾语从句时，在从句中起代词的作用，可在从句中作主语、宾语、表语或定语。I dn't knw wh will accmpany yu t the cncert tnight.我不知道今晚谁将陪你去音乐会。
　(五)同位语从句　　同位语从句在句中作某一名词的同位语，一般位于该名词(如：news， fact， idea， suggestin， prmise等)之后，说明该名词的具体内容。　　I have n idea when he will be back.The fact that he had nt said anything surprised everybdy.
根据提示翻译下列句子(1)凡是去杭州的人都去西湖游览。(whever)______________________________________________(2)我们明天是否去那里取决于天气。(whether)___________________________________________________________________________________________________________(3)众所周知, 水能以气态或固态存在。(that)_________________________________________________________________________________________________ 
Whever ges t Hangzhu will visit the West Lake.  
Whether we will g there tmrrw depends n the weather. /It depends n
the weather whether we will g there tmrrw.  
That water can exist as a gas r a slid is well knwn. /It is well knwn that
water can als exist as a gas r a slid.
(4)还没决定谁主持会议。(wh)____________________________________________________________________________(5)他们为什么没来, 我们还不知道。(why)___________________________________________________________________________(6)看起来她好像刚从外太空回来。(lk as if)_______________________________________________ (7)看起来他的意见更实际一些。(seem)______________________________________
the meeting.  
Why they didn’t cme is still unknwn t us. /It is still unknwn why they
didn’t cme.  
It lks as if she had just cme back frm uter space.
It seems that his pinin is mre practical.
Wh will chair the meeting is nt decided. /It is nt decided wh will chair