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高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课堂教学课件ppt
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这是一份高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课堂教学课件ppt，共20页。PPT课件主要包含了自我探究，S+V+P，link verb，behind，表语从句之引导词，“是否”，不充当，宾语或表语， 定语表语，其当中哪一个等内容，欢迎下载使用。
1. Enable the Ss t master the usage f predicative in this unit.2. Enable the Ss t use the predicative patterns flexibly.3. Train the Ss t apply sme skills by ding the relevant exercises.
Teaching Gals
Grammar fcus:
Predicative clauses
The questin is wh will d it.
定义：表语从句放在 之后，充当复合句中的 。结构:
It seems that it is ging t rain.
It lks as if he is unhappy tday.
Underline all the examples in the reading passage where nun clauses are used as the predicative. Then state their meaning and functins.
1.One thery was that _____________________________________2. Anther was______________________________________3. The truth was__________________________________
that chlera was caused by an infectin frm germs in fd r water.
bad air caused the disease.
that the water frm the Brad Street pump had been infected by waste.
Predicative 表语
Predicative is used ______ the link verb.
A sentence which is used as predicative is Predicative Clause表语从句.
②感官动词：sund, taste, smell, lk, feel;
③表示变化的词：g, get, turn, becme.
It lk as if…
It turned ut that…
1.引导词的用法 (that)
that在表语从句中 ,又 且______ 省略。1.The fact is that he hasn’t yet recvered frm illness. 2.The reasn why he has t g is that his mther is ill in bed.
whether在表语从句中表 , 但_______句子的成分。 1.What the dctr really dubts is whether my mther will recver frm the serius disease sn. 2.The questin is whether it is wrth ding.
2.引导词的用法 (whether )
She asked me if /whether she culd brrw these bks . The questin is if/whether we can rely n him.在表语从句中, 表“是否” 时, 只能用“whether”不能用“if”。I dn’t knw _______________ he wants t g alne.The prblem was ________ __he culd cme n time.
if r whether?
if/ whether
what 在表语从句中充当______________ 表示____________________________.1. The questin is what caused the accident. 2. That muntain is n lnger what it used t be .3. What he tld yu was what had been discussed at the meeting.
什么，什么样子，或所…的（人或事）
3.引导词的用法 (what)
wh 在表语从句中充当______________表示____.The prblem is wh culd d the wrk2. My truble is wh (whm) I can turn t.
4. 引导词的用法 (wh)
which 在引导表语从句时,常充当_____________ 表示 。 I read abut it in sme bk r anther,but what I dn’t knw is which (bk) it is.
5.引导词的用法 (which)
由as if ,as thugh引导表语从句，表示 。句子中的系动词常用lk, appear, seem等。1.It lks as if it was ging t yung man with lng hair lks as if he were a girl.
6.引导词的用法（as if, as thugh）
当主句的主语为reasn,或者是由why引导的从句时,与它们相关的表语从句用_________,而不能由__________ 引导; because 引导表语从句时只能用于___________________________________句型中. 1.The reasn why I was late was that I missed the train.2. I was late. It/That/This was because I missed the train.
It/That/This is /was because…
7 引导词的用法（the reasn why… is that/ It is because…）
当表语从句中主语、宾语、表语具备，但是还是要表示疑问含义，可以判断句子中缺少状语，常常用相应的特殊疑问词引导，有 why 表 , when表 , where表 , hw表 等。This is hw he did it.That is why the brthers wanted t make a bet.That’s why we’ve given yu the letter.
8. 引导词的用法(why/when/where/hw)
Answer the fllwing questins using the infrmatin frm the reading passage as well as the predicative clauses.
EXAMPLEWhat Was it that Jhn Snw shwed t the wrld?What Jhn Snw shwed t the wrld was hw chlera culd be vercme.1. What was Snw’s discvery in tw particular streets in Lndn?Snws discvery in tw particular streets in Lndn was that___________________________________________________________________2. What was Snw determined t find ut during the 1854 utbreak f chlera in Lndn?What Snw was determined t find ut was why _________________________________________________________3. What were the exact places(Snw marked n the map? )The exact places Snw marked n the map were where_________________________________________________________________4. What was the finding that Snw annunced?Snw's finding was that_______________________________________
mre than 500 peple died in ten days.
the chlera utbreak was s severe in the tw particular streets
all thse wh died had lived
the pump water carried chlera germs..
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 practice the cnversatin.
A: Abslutely ! Yu may nt believe it, but that was ___________happened at the initial stage f ur grup's research n develping a vaccine fr 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 realised 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.
as if that what wh when Hw why whse which whether
Maria: This mix f thery and data is ne f the key characteristics f what we call science.David:__A_____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:__________________
1. Enable the Ss t master the usage f predicative in this unit.2. Enable the Ss t use the predicative patterns flexibly.3. Train the Ss t apply sme skills by ding the relevant exercises.
Teaching Gals
Grammar fcus:
Predicative clauses
The questin is wh will d it.
定义：表语从句放在 之后，充当复合句中的 。结构:
It seems that it is ging t rain.
It lks as if he is unhappy tday.
Underline all the examples in the reading passage where nun clauses are used as the predicative. Then state their meaning and functins.
1.One thery was that _____________________________________2. Anther was______________________________________3. The truth was__________________________________
that chlera was caused by an infectin frm germs in fd r water.
bad air caused the disease.
that the water frm the Brad Street pump had been infected by waste.
Predicative 表语
Predicative is used ______ the link verb.
A sentence which is used as predicative is Predicative Clause表语从句.
②感官动词：sund, taste, smell, lk, feel;
③表示变化的词：g, get, turn, becme.
It lk as if…
It turned ut that…
1.引导词的用法 (that)
that在表语从句中 ,又 且______ 省略。1.The fact is that he hasn’t yet recvered frm illness. 2.The reasn why he has t g is that his mther is ill in bed.
whether在表语从句中表 , 但_______句子的成分。 1.What the dctr really dubts is whether my mther will recver frm the serius disease sn. 2.The questin is whether it is wrth ding.
2.引导词的用法 (whether )
She asked me if /whether she culd brrw these bks . The questin is if/whether we can rely n him.在表语从句中, 表“是否” 时, 只能用“whether”不能用“if”。I dn’t knw _______________ he wants t g alne.The prblem was ________ __he culd cme n time.
if r whether?
if/ whether
what 在表语从句中充当______________ 表示____________________________.1. The questin is what caused the accident. 2. That muntain is n lnger what it used t be .3. What he tld yu was what had been discussed at the meeting.
什么，什么样子，或所…的（人或事）
3.引导词的用法 (what)
wh 在表语从句中充当______________表示____.The prblem is wh culd d the wrk2. My truble is wh (whm) I can turn t.
4. 引导词的用法 (wh)
which 在引导表语从句时,常充当_____________ 表示 。 I read abut it in sme bk r anther,but what I dn’t knw is which (bk) it is.
5.引导词的用法 (which)
由as if ,as thugh引导表语从句，表示 。句子中的系动词常用lk, appear, seem等。1.It lks as if it was ging t yung man with lng hair lks as if he were a girl.
6.引导词的用法（as if, as thugh）
当主句的主语为reasn,或者是由why引导的从句时,与它们相关的表语从句用_________,而不能由__________ 引导; because 引导表语从句时只能用于___________________________________句型中. 1.The reasn why I was late was that I missed the train.2. I was late. It/That/This was because I missed the train.
It/That/This is /was because…
7 引导词的用法（the reasn why… is that/ It is because…）
当表语从句中主语、宾语、表语具备，但是还是要表示疑问含义，可以判断句子中缺少状语，常常用相应的特殊疑问词引导，有 why 表 , when表 , where表 , hw表 等。This is hw he did it.That is why the brthers wanted t make a bet.That’s why we’ve given yu the letter.
8. 引导词的用法(why/when/where/hw)
Answer the fllwing questins using the infrmatin frm the reading passage as well as the predicative clauses.
EXAMPLEWhat Was it that Jhn Snw shwed t the wrld?What Jhn Snw shwed t the wrld was hw chlera culd be vercme.1. What was Snw’s discvery in tw particular streets in Lndn?Snws discvery in tw particular streets in Lndn was that___________________________________________________________________2. What was Snw determined t find ut during the 1854 utbreak f chlera in Lndn?What Snw was determined t find ut was why _________________________________________________________3. What were the exact places(Snw marked n the map? )The exact places Snw marked n the map were where_________________________________________________________________4. What was the finding that Snw annunced?Snw's finding was that_______________________________________
mre than 500 peple died in ten days.
the chlera utbreak was s severe in the tw particular streets
all thse wh died had lived
the pump water carried chlera germs..
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 practice the cnversatin.
A: Abslutely ! Yu may nt believe it, but that was ___________happened at the initial stage f ur grup's research n develping a vaccine fr 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 realised 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.
as if that what wh when Hw why whse which whether
Maria: This mix f thery and data is ne f the key characteristics f what we call science.David:__A_____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:__________________
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