英语必修 第一册Unit 5 Languages around the world完美版课件ppt

这是一份英语必修 第一册Unit 5 Languages around the world完美版课件ppt，文件包含Unit5Languagesaroundtheworld第2课时DiscoveringUsefulStructures课件pptx、Unit5Languagesaroundtheworld第2课时DiscoveringUsefulStructures练习docx等2份课件配套教学资源，其中PPT共30页， 欢迎下载使用。

Part 1 Studying the rulesPart 2 Practice
Step 1. Lead in
It was a time when peple were divided gegraphically.
What d yu knw abut the written Chinese?
Emperr Qinshihuang united the seven majr states int ne unified cuntry where the Chinese writing system began t develp in ne directin.
There are many reasns why peple learn a freign language.
These were animal bnes and shells n which symbls were carved by ancient Chinese peple.
找出定语从句、关系词及关系词在从句中的充当的句子成分。1. It was a time when peple were divided gegraphically.2. Emperr Qinshihuang united the seven majr states int ne unified cuntry where the Chinese writing system began t develp in ne directin.3. There are many reasns why peple learn a freign language. 4. These were animal bnes and shells n which symbls were carved by ancient Chinese peple.
Step 2. Presentatin
What can yu find?
指时间，在定语从句中可以充当状语
指地点，在定语从句中作状语
指原因，在定语从句中作状语
注意：一些表示抽象地点的名词，如 pint，case，psitin，cnditin，situatin等 用where 引导
一、关系副词引导的定语从句1.when引导定语从句
I will never frget the day when I first saw yu.→I will never frget the day n which I first saw yu.我永远不会忘记第一次见到你的日子。when引导定语从句时，从句的先行词为表示____________的名词，when在从句中作时间状语，相当于“介词in/at/n/during...＋which”结构。
2.where引导定语从句
　After living in Paris fr fifty years he returned t the small twn where he grew up as a child.→After living in Paris fr fifty years he returned t the small twn in which he grew up as a child.在巴黎生活了50年后，他回到了儿时成长的那个小镇。The accident has reached t the pint where bth their parents are t be called in.事情发展到如此地步，不得不请双方家长来一趟了。
(1)where引导定语从句时，从句的先行词为表示地点的名词，where在从句中作____________状语，相当于“________________”结构。(2)关系副词where表示“地点的模糊化”。当先行词表示某人/物的situatin，或某事发展的stage，或表达某事的某个方面时都可用关系副词where。常见的先行词还有pint，case，psitin，cnditin等。
介词in/at...＋which
3.why引导定语从句
Unsuccessful peple can always find reasns why they’re nt ding well.→Unsuccessful peple can always find reasns fr which they’re nt ding well.不成功的人总能找到自己表现不好的理由。why引导定语从句时，从句的先行词通常是reasn，why在从句中作____________状语，相当于“________________”结构。表示时间、地点及原因的名词作先行词时，定语从句可用关系代词引导，也可用关系副词引导。若先行词在定语从句中作状语时，应用关系副词；若先行词在定语从句中作主语或宾语时，则应用关系代词。I dn’t believe the reasn(that/which) he gave me fr his being late.我不相信他给出的迟到的理由。
[即学即练1](1)用适当的关系词填空①This is the place ____________ we held a party last week.②D yu remember the days ____________ we spent tgether n the farm?③I dn’t knw the reasn ____________ he didn’t turn t his gd friend fr help yesterday.④I wn’t listen t the reasn ____________ yu have given us.⑤This is the place ____________ we visited last year.⑥D yu remember the days ____________ we chatted with each ther all night?
(2)同义句转换⑦I’ll never frget the day when I jined the party.→I’ll never frget the day ________________ I jined the party.⑧The reasn fr which he refused the invitatin is nt clear.→The reasn ____________ he refused the invitatin is nt clear.⑨The huse where I lived ten years ag has been pulled dwn.→The huse ____________ I lived ten years ag has been pulled dwn.
1. It was a time at which (when) peple were divided gegraphically.2. There are many reasns fr which (why) peple learn a freign language. 3. These were animal bnes and shells n which (where) symbls were carved by ancient Chinese peple.4. Yesterday we visited the West Lake fr which (where) Hangzhu is famus.
介词+which = when/where fr +which = why
二、“介词＋关系代词”引导的定语从句
当关系代词在定语从句中作介词的宾语时，我们通常用“介词＋关系代词”引导定语从句。如果指“人”，用“介词＋whm”；如果指“物”，用“介词＋which”；关系代词有时也用whse(作定语)。　Yesterday we visited the West Lake fr which Hangzhu is famus.昨天我们参观了西湖，杭州因其而出名。(be famus fr“因……而出名”)This is the camera with which he ften takes phts.这就是他经常用来拍照的相机。(with the camera“用照相机”)
The bss in whse cmpany Mr King wrked heard abut the accident.金先生所工作的公司的老板听到了这起事故。(in the bss’ cmpany “在老板的公司”)The clrless gas withut which we cannt live is called xygen.(withut the clrless gas “没有这种无色气体”)这种无色的、离了它我们就无法生存的气体是氧气。[自主发现4]　选用介词的依据(1)根据定语从句中____________的搭配习惯(即固定短语)。(2)根据____________的搭配习惯(约定俗成，不一定是短语)。(3)根据句子的意思来选择。
介词+which/ whm
1. This is the camera with which he ften takes phts.
2. The ld wman with whm yu talked just nw is a famus artist.
如果指“人”，用“介词＋whm”如果指“物”，用“介词＋which”
[即学即练2]用“介词＋关系代词”填空①This is the man ________________ I just shk hands.②Nne f us knw the reasn ________________ Tm was absent.③D yu remember the day ________________ yu jined ur club?④There is a big windw ________________ I can see the railway statin.
thrugh which
1. D yu remember the days when we chatted with each ther all night?2. D yu remember the days that/which we spent studying tgether in the classrm?3. I dn't knw the reasn why he didn't turn t his gd friend fr help yesterday.4. We wn't accept the reasn that/which yu have given.5. Can yu recgnize the huse where yu used t live with yur parents?6.Can yu recgnize the huse that/which Tm sld three years ag?
Read and think关系代词与关系副词的选择
表示时间、地点及原因的名词作先行词时，先行词在定语从句中作状语时，应用_____________ ；若先行词在定语从句中作主语或宾语时，则应用_____________。方法：分析从句句子成分。
用正确的关系副词填空。1. I cannt frget the day _______ I first visited the Great wall.2. This is the huse ________ they lived in their childhd.3. The reasn _____ I admire him is that he ften wrks hard.4. Tday, we’ll discuss a number f cases ________ beginners f English fail t use the language prperly.
Step 3. Practice
用适当的关系词填空I still remember the day ______I became a vlunteer.2. This is the palace ____________ we visited yesterday. 3. This is the palace ______ we paid a visit yesterday.4. That is the reasn ______ I did the jb.
that/ which
用适当的介词或关系代词填空。1. I will never frget the day _____ which I jined the army.2. D yu like the singer abut _________ she ften talks.3. The mment _____ which I made the decisin is exciting.4. Have yu fund the bk frm ______ we learnt a lt?5. D yu knw the reasn _____ which he lst the jb?
单句语法填空1．We visited the huse ________ the famus scientist nce lived.2．The pht reminded me f the days ________ I played hide－and－seek with my brther and I stayed fr six years.3．It was a perid ________ they had discussin very frequently.4．The prblem has cme t a pint ________ everyne has different pinins and it is difficult t reach an agreement.
6．One f the reasns ______ he was refused in the interview was that his spken English was terrible.7．I'll never frget the time _____________ we spent tgether in the vlunteer rganizatin.8．I'll never frget the day ________ I jined the rbt club.9．Miss Smith is an excellent teacher ________ whm I have learned a lt.10．They have tw children, bth f ________ wrk in large cmpanies.
用含有关系副词引导的定语从句合并下列句子1．I'll never frget the days. We studied tgether then.→____________________________________________________________2. Give me ne gd reasn. I shuld help yu fr the reasn.→_____________________________________________________________3．She is ging t live in China. She has sme clse friends in China.→_______________________________________________________________________________
She is ging t live in China where she has sme clse friends.
I'll never frget the days when we studied tgether.
Give me ne gd reasn why I shuld help yu.
Step 4. Prductin
Wrk in pairs. Ask and answer the questins.