人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists优质课ppt课件

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists优质课ppt课件，共23页。PPT课件主要包含了S+V+P，系动词，link verb，that，whether，because，虚拟语气，didnt，whoever，what等内容，欢迎下载使用。

1.T further grasp the structural features f predicative clauses and their idegraphic strengthen the ability f using predicative clauses in cntext3.T prmte the ability f text analysis and lgical reasning cmpetence.
Learning Objectives
1. What was it that Jhn Snw shwed t the wrld?Jhn Snw shwed hw chlera culd be vercme t the wrld.CAN YOU MAKE UP THE ASK AND ANSWER INTO A PREDICATAIVE CLAUSE?
Check the hmewrk
What Jhn Snw shwed t the wrld was hw chlera culd be vercme.
2. What was Snw’s discvery in tw particular streets in Lndn?The chlera utbreak was s severe that mre than 500 peple died in ten days.Predictive clause:
Snws discvery in tw particular streets in Lndn was that the chlera utbreak was s severe that mre than 500 peple died in ten days.
3. What was Snw determined t find ut during the 1854 utbreak f chlera in Lndn?The utbreak f chlera had caused ver 500 deaths within ten days.Predictive clause:
What Snw was determined t find ut was why the utbreak f chlera had caused ver 500 deaths within ten days.
4. What were the exact places (Snw marked n the map? )All thse wh died had lived / all the dead peple had lived.Predictive clause:
The exact places Snw marked n the map were where the chlera utbreak was s severe that mre than 500 peple died in ten days.
5. What was the finding that Snw annunced? The water pump was t blame fr the spread f chlera / The pump water carried chlera germs / Water frm the Brad Street pump had been infected by waste.Predictive clause:
Snw's finding was that the water pump was t blame fr the spread f chlera / the pump water carried chlera germs / water frm the Brad Street pump had been infected by waste .
Can yu find ut the sentences with predictive clauses in the text n page 2&3? Then state their meaning and thery was that bad air caused the thery was that chlera was caused by an infectin frm germs in fd r truth was that the water frm the Brad Street had been infected by waste.
什么是表语从句（predictive clause）？The questin is wh will d it.It seems that it is ging t rain.It lks as if he is unhappy tday. 在复合句中作_________的从句，叫作表语从句。它位于主句的____________之后，对主语进行解释、说明，使主语的内容具体化。
Learn mre details
②感官动词：sund, taste,smell, lk, feel;
③表示变化的词：g, get, turn, becme.
Predicative 表语
that在从句中__________成分，that没有实际意义，不可省略；whether意为__________ExerciseMy belief is _______I will succeed by wrking hard.我的信念是通过努力我会成功。The mst pleasant thing f the rainy seasn is ________ne can be entirely free frm dust.雨季最令人愉快的事情是完全没有灰尘。The prblem is __________we can find them there.问题是我们能否在那里找到他们。
从属连词that、whether(不能用if)
because：说明主语所表示的事件发生的原因，意为________ExerciseHe has heart disease. That is ___________he has been smking t much.他有心脏病。那是因为他抽烟太多。as if/thugh：从句表示的情况发生的可能性较小时常用______________ExerciseIt seems as if he__________ knw the answer.他好像不知道答案。
从属连词because、as if/thugh
wh(ever)、whm(ever)、whse、what(ever)、which(ever)在从句中作主语、宾语、表语、定语ExerciseYu can be ______________yu want t be.你可以成为你想做的任何人。Tm is n lnger_________ he used t be.汤姆不再是过去的那个他了。
when、where、why、hw在从句中作状语，表示时间、地点、原因、方式等ExerciseThis is ________ I dn't agree with yu.这就是我不同意你的地方。The questin is _______ we can get in tuch with him.问题是我们怎样才能和他联系上。That is _________ I gt wet thrugh.所以我才被淋湿了。
The village is n lnger __________ it used t be.这座村庄不再是过去的样子了。The fact was __________ he had frgtten abut it.事实上，他已经把这件事忘了。
Find the differences
that与what的区别
what是连接代词，引导表语从句时，在从句中作主语、宾语、表语或定语
that引导表语从句时，是连词，在从句中不作成分
The traffic was s bad. That's _______ I was late this mrning.路上太堵了，所以我迟到了。 I was late this mrning. That was ________ the traffic was s bad.我今早迟到了，是因为路上太堵了
because与why的区别
1．The reasn fr yur mistake is _______ yu lack cnfidence in yurself.2．The dubt is _______ has gt away with the dcument.3．She's been leading thrugh the race, but it nw lks _______ she's tiring.4．The best mment fr the ftball star was _______ he scred the winning gal.
5．What Tm's parents really dubt is _______ he will recver frm the serius disease sn.6．Every year, _______ makes the mst beautiful kite will win a prize in the Kite Festival.7．What yur father wants t knw is _______ yu are getting n with yur studies.8．My parents are very kind t me and always let me d _______ I think I shuld d.9．Yu are saying that everyne shuld be equal, and this is _______ I disagree.
David is talking t Maria abut their scientific research prject.First cmplete David's lines [A-E],using the wrds in the bx. Then put David's lines in the crrect rder and practise the cnversatin.
Practice in cntext
as if that what wh when Hw why whse which whether
A: Abslutely ! Yu may nt believe it, but that was ________happened at the initial stage f ur grup's research n develping a vaccine frd malaria.B: Yes, it is. And it seemed _________all the theries were useful, but the fact was_______ we culdn't persuade ne anther that ne thery was better than anther.C:Exactly The prblem was nt abut __________all ur theries were equally gd, but in deciding ___________________thery t depend upn.D: We realized that what we cared abut was nt___________ aspect we needed t develp a thery in, but rather ______we can reduce the cst f a vaccine withut reducing its effect!E: Yu're right. At last, we became fcused n the key issue, which was ______we had t Cary ut the research in the first place.
which/what/whse
Maria: This mix f thery and data is ne f the key characteristics f what we call science.David: __________________Maria: With yur theretical framewrk?David:__________________Maria: Deciding n a thery is definitely f critical imprtance.David:_________________Maria This was when yu shuld have calmed dwn and gt dwn t ding sme sld wrk.David:_________________Maria: S what happened in the end?David:__________________
连接代词在从句中作主语、 宾语、表语、定语
连接副词在从句中作状语
that, whether, as if, as thugh,because …
what/whatever,which/whchever wh/whever,whm,whse …
when, where, why, hw …
Hw well have yu mastered the predictive clauses?
Exchange yur draft with a partner.Use the checklist t give feedback n yur wn and yur partner’s draft, and then hand it in.(Each 1-5 pints)