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人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课前预习ppt课件
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这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists课前预习ppt课件，共17页。PPT课件主要包含了Lead in，that，why，where，what，whether，whatwhich，how，as if，logic等内容，欢迎下载使用。
Teaching bjectives:
By the end f this perid, yu will be able t…
1. Analyze the frms and features f predicative clause. 2. Learn the functins f predicative clause in the cntext.3. Use predicative clause in the given cntext.
Q1: Can yu find any predicative clauses?Q2: Why d yu think they are predicative clauses? Q3: What are the main linking verbs?
In thse days, there are tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. One f the evidence is that a wman had died f chlera after mving away frm Brad Street. It seemed that she liked the water frm the pump s much that she had it delivered t her huse every day. The truth was that the water frm the Brad Street pump had been infected by waste.
In thse days, there are tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. One f the evidence is that a wman had died f chlera after mving away frm Brad Street. It seemed that she liked the water frm the pump s much that she had it delivered t her huse every day. And the truth was that the water frm the Brad Street pump had been infected by waste.
There are linking verbs clsely befre the predicative sentences.
What are the main linking wrds?
Observe and Analyse
ask and answer the questins in pairs using the infrmatin frm the reading passage (P5 Activity2)
1. What was Snw's discvery in tw particular streets in Lndn? Snw's 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 _________________________________________________________________________.
the chlera utbreak
was s severe that mre than 500 peple died in ten days
f chlera had caused ver 500 deaths within ten days.
s many peple died /the utbreak
all thse wh died had lived/
all the dead peple had lived
the pump water carried chlera germs/ the water pump wast blame fr the spread f chlera
Snw's discvery in tw particular streets in Lndn was_____ the chlera utbreak was s severe that mre than 500 peple died in ten days. 2. What Snw was determined t find ut was______ s many peple died.3. The exact places Snw marked n the map were _______ all thse wh died had lived.4. Snw's finding was_____ the pump water carried chlera germs.
Observe and Analyse——Fill in the blank quickly and answer the questins
What are their meanings and functins ?
Observe and Analyse——Fill in the frm
Summary: Guiding wrds shuld be chsen accrding t their functins and meanings.
Practice—— cmplete David’s lines by filling in guiding wrds (A-E).
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 avaccine withut reducing its effect!E. Yu're right. At last, we became fcused n the key issue, which was _______ we had t carry ut the research in the first place.
whse/which/what
Maria: This mix f thery and data is ne f the key characteristics f what we call science.David: ____________________Reasn:__________________ Maria: With yur theretical framewrk?David: ____________________ Reasn:__________________ Maria: Deciding n a thery is definitely f critical imprtance.David: ___________________ Reasn:__________________ Maria: This was when yu shuld have calmed dwn and gt dwn t ding sme slid wrk.David: ___________________ Reasn:__________________ Maria: S what happened in the end?David: ___________________ Reasn:__________________
Practice——Put A-E in the crrect rder using the abve methds. Then check the answer and state the reasns. （P5 Activity 3）
Q1: What was David’s grup’s research?Q2: What was the prblem?Q3: What was the key issue?Q4: What did they care abut?
Practice——answer sme questins abut the dialgue using the predicative clauses. （P5 Activity 3）
David’s grup’s research was that they wanted t develp a vaccine fr malaria.
The prblem was that they had t decide which thery t depend upn.
The key issue was why they had t carry ut the research in the first place.
What they cared abut was hw they culd reduce the cst f a vaccine withut reducing its effect.
Every grup can chse ne r tw dialgues, and each member must cmplete at least tw predicative clauses.
Language Use and Share—— Wrk in grups. cmplete the cnversatins using the predicative clauses.
1.A: Papermaking, printing, gunpwder, and the cmpass are the fur great inventins f ancient China. They are significant cntributins f the Chinese natin t the wrld. B: Sure, they are. What I want t knw thugh is_________________________________.2.A: The ancient Chinese were the first t invent paper and printing. Then they went n t invent bks and had pened bkshps in many cities. B: What I'm curius abut is____________________________________________.3.A: The cmpass is a special inventin f ancient China, dating back t as early as the Warring States Perid. B: Yes. It seems _______________________________________. 4.A: Gunpwder was riginally used fr making firewrks. B: But what surprises me is____________________________________________.5.A: High-speed trains, mbile payments, the bike-sharing system, and nline shpping are cnsidered by sme as the new “fur inventins” f China. B: Is that s? I feel/It seems _________________________________________________.
which ne is the greatest inventin
wh invented paper/when ink was invented
that the cmpass was particularly useful
that gunpwder was nt used initially fr firearms
that these inventins have really made ur lives easier
Make a presentatin actively and bravely!
I. Fill in the blanks with guiding at the tallest building. That is_________________ my father f the mst exciting mments in my life was___________ I wn first place in the singing , the nly prblem is________________ we can cllect enugh mney fr the advantage f slar energy is_________ it will never run is trubling me is________ I dn’t have much experience f this kind f ’s____________ yu are wrng. Yu frgt Step Three.
whether/hw/when
II. Chse the best answer.Withut his supprt, we culdn't be ____ we are nw. A. hw B. when C. where D. why 2. This is ____ my father has taught me-t always face difficulties and hpe fr the best. A. hw B. which C. that D. what3. By bat is the nly way t get here, which is ____ we arrived. A. where B. when C. why D. hw
Teaching bjectives:
By the end f this perid, yu will be able t…
1. Analyze the frms and features f predicative clause. 2. Learn the functins f predicative clause in the cntext.3. Use predicative clause in the given cntext.
Q1: Can yu find any predicative clauses?Q2: Why d yu think they are predicative clauses? Q3: What are the main linking verbs?
In thse days, there are tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. One f the evidence is that a wman had died f chlera after mving away frm Brad Street. It seemed that she liked the water frm the pump s much that she had it delivered t her huse every day. The truth was that the water frm the Brad Street pump had been infected by waste.
In thse days, there are tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. One f the evidence is that a wman had died f chlera after mving away frm Brad Street. It seemed that she liked the water frm the pump s much that she had it delivered t her huse every day. And the truth was that the water frm the Brad Street pump had been infected by waste.
There are linking verbs clsely befre the predicative sentences.
What are the main linking wrds?
Observe and Analyse
ask and answer the questins in pairs using the infrmatin frm the reading passage (P5 Activity2)
1. What was Snw's discvery in tw particular streets in Lndn? Snw's 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 _________________________________________________________________________.
the chlera utbreak
was s severe that mre than 500 peple died in ten days
f chlera had caused ver 500 deaths within ten days.
s many peple died /the utbreak
all thse wh died had lived/
all the dead peple had lived
the pump water carried chlera germs/ the water pump wast blame fr the spread f chlera
Snw's discvery in tw particular streets in Lndn was_____ the chlera utbreak was s severe that mre than 500 peple died in ten days. 2. What Snw was determined t find ut was______ s many peple died.3. The exact places Snw marked n the map were _______ all thse wh died had lived.4. Snw's finding was_____ the pump water carried chlera germs.
Observe and Analyse——Fill in the blank quickly and answer the questins
What are their meanings and functins ?
Observe and Analyse——Fill in the frm
Summary: Guiding wrds shuld be chsen accrding t their functins and meanings.
Practice—— cmplete David’s lines by filling in guiding wrds (A-E).
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 avaccine withut reducing its effect!E. Yu're right. At last, we became fcused n the key issue, which was _______ we had t carry ut the research in the first place.
whse/which/what
Maria: This mix f thery and data is ne f the key characteristics f what we call science.David: ____________________Reasn:__________________ Maria: With yur theretical framewrk?David: ____________________ Reasn:__________________ Maria: Deciding n a thery is definitely f critical imprtance.David: ___________________ Reasn:__________________ Maria: This was when yu shuld have calmed dwn and gt dwn t ding sme slid wrk.David: ___________________ Reasn:__________________ Maria: S what happened in the end?David: ___________________ Reasn:__________________
Practice——Put A-E in the crrect rder using the abve methds. Then check the answer and state the reasns. （P5 Activity 3）
Q1: What was David’s grup’s research?Q2: What was the prblem?Q3: What was the key issue?Q4: What did they care abut?
Practice——answer sme questins abut the dialgue using the predicative clauses. （P5 Activity 3）
David’s grup’s research was that they wanted t develp a vaccine fr malaria.
The prblem was that they had t decide which thery t depend upn.
The key issue was why they had t carry ut the research in the first place.
What they cared abut was hw they culd reduce the cst f a vaccine withut reducing its effect.
Every grup can chse ne r tw dialgues, and each member must cmplete at least tw predicative clauses.
Language Use and Share—— Wrk in grups. cmplete the cnversatins using the predicative clauses.
1.A: Papermaking, printing, gunpwder, and the cmpass are the fur great inventins f ancient China. They are significant cntributins f the Chinese natin t the wrld. B: Sure, they are. What I want t knw thugh is_________________________________.2.A: The ancient Chinese were the first t invent paper and printing. Then they went n t invent bks and had pened bkshps in many cities. B: What I'm curius abut is____________________________________________.3.A: The cmpass is a special inventin f ancient China, dating back t as early as the Warring States Perid. B: Yes. It seems _______________________________________. 4.A: Gunpwder was riginally used fr making firewrks. B: But what surprises me is____________________________________________.5.A: High-speed trains, mbile payments, the bike-sharing system, and nline shpping are cnsidered by sme as the new “fur inventins” f China. B: Is that s? I feel/It seems _________________________________________________.
which ne is the greatest inventin
wh invented paper/when ink was invented
that the cmpass was particularly useful
that gunpwder was nt used initially fr firearms
that these inventins have really made ur lives easier
Make a presentatin actively and bravely!
I. Fill in the blanks with guiding at the tallest building. That is_________________ my father f the mst exciting mments in my life was___________ I wn first place in the singing , the nly prblem is________________ we can cllect enugh mney fr the advantage f slar energy is_________ it will never run is trubling me is________ I dn’t have much experience f this kind f ’s____________ yu are wrng. Yu frgt Step Three.
whether/hw/when
II. Chse the best answer.Withut his supprt, we culdn't be ____ we are nw. A. hw B. when C. where D. why 2. This is ____ my father has taught me-t always face difficulties and hpe fr the best. A. hw B. which C. that D. what3. By bat is the nly way t get here, which is ____ we arrived. A. where B. when C. why D. hw
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