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北师大版 (2019)选择性必修 第四册Lesson 1 Scientific Breakthroughs多媒体教学ppt课件
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这是一份北师大版 (2019)选择性必修 第四册Lesson 1 Scientific Breakthroughs多媒体教学ppt课件，共36页。PPT课件主要包含了Who，How， accuracy，missiles，biologist，microscope，scientific，launching，orbit，inventor等内容，欢迎下载使用。
What d yu think are the mst imprtant inventins r discveries f the 20th century?
Can yu name a few inventrs?
Albert Einstein
Alexander Fleming
Eckert & Mauchly
Tim Berners-Lee
What makes them great? What des it take fr an inventr t invent smething?
premier scientist pineers f the 20th centuryt be cmmitted t t be inspired byt be prpsed by t imprve the quality f human life
Which f the fllwing imprtant discveries f the 20th century are mentined in the first paragraph?A. Splitting the atmB. Discvering the smallest particle f matterC. Replacing diseased rgans with dnated nesD. Flying arund the wrld and launching satellitesE. Discvering the causes f diseases under micrscpesF. Using mbile phnes, emailing and sending instant messages
Read the text abut sme f the pineers in science during the 20th century. What discveries are mentined? Wh made them?
Match the discveries r inventins (1-4) with hw they came abut (a-d).
1 E=mc2 2 penicillin3 the first cmputer4 the Internet
a scientists wrked tgether as a team b there was a lucky accident c different scientists wrked n it fr many years d a scientist was inspired
1 ____ 2 ____ 3 ____ 4 ____
Listen t the text and find infrmatin abut hw the fllwing things were invented / discvered. Organise the infrmatin in yur wn way. Then describe the prcess in grups.
Significance?
inspired while rcking his baby
shwing hw a small piece f mass culd prduce an unbelievable amunt f energy
thery f relativity
a lucky accident
helping t save the lives f millins
humility abut the amazing utcme f his discvery
Eckert and Mauchly
wrking tgether as a team
the wrld’s first cmputer
t imprve the accuracy f the missiles f the US Navyusing t much energy
different scientists wrking n it fr many years
enabling cmputers all ver the wrld t cmmunicate with each ther
withut the Internet, unimaginable
Read the text again and write T (true), F (false) r NI (n infrmatin) in brackets.( ) 1 It is nt easy t chse the single mst imprtant discveries f the 20th century. ( ) 2 An atm is the smallest particle f matter. ( ) 3 Einstein was at wrk when he thught f the questin “E=mc2”. ( ) 4 Einstein participated in the prgramme that develped the nuclear bmb. ( ) 5 Einstein bserved changes in time, size and mass.
( ) 6 Fleming had been studying bacteria in his labratry when the discvery happened.( ) 7 Fleming develped the prcess f making penicillin. ( ) 8 The first cmputer prject failed t meet its riginal gal.( ) 9 The first cmputer was extremely difficult t prgramme. ( ) 10 Cmputers culd nt cnnect t each ther befre 1990.
1 Which discvery r inventin mentined in the text has been the mst imprtant s far? Why?2 Which discvery r inventin will mst influence the future? Why?3 Hw did the writer cnnect the paragraphs? Circle the signal wrds r phrases.
Cmplete the passage with the crrect frm f the wrds belw.
rbit, missile, enable, launch, accuracy, scientific, micrscpe, inventr, bilgist
I really dn’t knw what I want t d when I leave schl. My dad is a cmputer engineer wrking n the imprvement f the 1________ f the Navy’s 2________. I wuld like t fllw in his ftsteps, but then I’d have t sit in frnt f a cmputer all day. My mum is a 3_________, but it seems t me that all she
Pst-reading
des is lking at bacteria thrugh a 4____________. All that stuff abut 5___________ finding that save peple’s lives is pretty interesting, but I think I might be mre interested in studying medicine. But then again, my uncle is a scientist and he is always talking abut 6____________ satellites int 7________. I find this very exciting. I knw what I want t be! I culd be an 8_________! I culd cme up with hundreds f inventins that will 9_________ peple t live better lives. But … I dn’t think there’s a university curse fr inventrs. Maybe I shuld just find ut what I really like first.
3 Line 12: Althugh … Here are sme f them.Line 15: One f the 20th century’s premier scientists was …Line 24: … anther imprtant finding …Line 34: … when Fleming’s discvery was …Line 49: With the develpment f cmputers …Line 57: These pineers …
1. Medical advances ranged frm discvering the causes f diseases under micrscpes t staging peratins t replace diseased rgans with dnated nes.
range frm ... t ... : t include a variety f different things r peple in additin t thse mentined 包括（从……到……）之间的各类事物
eg The shw had a massive audience, ranging frm children t grandparents. The jbs range frm advertising sales t engineering.
range frm ... t ... : if prices, levels, temperatures etc range frm ne amunt t anther, they include bth thse amunts and anything in between （价格、水平、温度等）处于某个范围之内（包括上下限）
eg Csts range frm 50 t several hundred dllars. There were 120 students whse ages ranged frm 10 t 18.
dnate vt. 1) t allw sme bld r a bdy rgan t be remved frm yur bdy s that it can be used in a hspital t help smene wh is ill r injured 捐（血），献（血）; 捐献（器官） 2) t give smething, especially mney, t a persn r an rganizatin in rder t help them 捐赠，捐献（尤指钱）
eg The appeal fr peple t dnate bld was very successful. Last year he dnated $1,000 t cancer research. The cmputers were dnated by lcal cmpanies.
2. …and the way we crrespnd went frm writing letters t emailing and sending instant messages.
crrespnd vi. : t write letters t smene and receive letters frm them 通信
crrespnd with sb. 与……通信eg Fr the next three years they crrespnded regularly. I've been crrespnding with several experts in the field.
crrespnd v. : if tw things r ideas crrespnd, the parts r infrmatin in ne relate t the parts r infrmatin in the ther 符合; 相一致
crrespnd t / with sth. 相符合, 相一致eg These gds dn’t crrespnd with / t my rder. His wrds always dn’t crrespnd with / t his actins.
【拓展】crrespndence n. 相符，一致；通信，信件 in crrespndence with 和……一致；和……有通信联系crrespndent n. 通讯员，记者crrespnding adj. 相符的；相应的
instant adj. : 1) happening r prduced immediately 立刻的，马上的 2) instant fd, cffee etc is in the frm f pwder and prepared by adding ht water (食物、咖啡等)即食的，调制方便的
eg They tk an instant liking t each ther. We can’t prmise instant slutins, but we can prmise t listen. instant cffee / sup / ndles即溶咖啡／速食汤 /方便面 I want t have a cup f instant cffee.
instant n. : a mment 片刻，顷刻
the instant (that) 一……（就……）in an instant 立刻，立即，马上eg She wke up the instant the phne rang. The pain disappeared in an instant.
3. We started flying arund the wrld, launching satellites int rbit and, at the same time, scientists figured ut hw t split the atm, previusly thught t be the smallest particle f matter in the universe.句子结构分析： and连接的并列分句；flying arund the wrld和launching satellites int rbit都是started的宾语；previusly thught t be…过去分词短语作后置定语，修饰atm。
eg An experimental satellite was launched frm the Jiuquan Satellite Launch Center n Thursday mrning. The scheme was launched a year ag. He is launching his sn n a career in banking.
launch vt. 1) t send a weapn r spacecraft int the sky r int space 发射 2) t start smething, usually smething big r imprtant 发动，发起，开始从事
figure ut : t understand sth. r t find an answer r slutin fr smething 算出，想出；理解，弄明白
eg It can be difficult t figure ut creative ways t finish the task. I can't figure ut why he des these crazy things.We had t figure ut the cnnectin between the tw events.
4. Althugh it is impssible t chse the mst imprtant discvery, it is pssible t single ut a few pineers f the 20th century.
althugh引导的让步状语从句
It作形式主语，后面的动词不定式是真正的主语。
本句中作者使用了Althugh it is impssible t…, it is pssible t…结构来构成强调和对比。这种句型可以运用到我们的日常交际或写作中，提升语言亮点。
single ut: t treat r t speak abut (smene r smething in a grup) in a way that is different frm the way yu treat r speak abut thers挑出；挑选
eg The cach singled ut the players wh played prly.Wh wuld yu single ut as the mst prmising student f the year?We wanted t single ut the main threat t civilisatin.
5. Einstein then shwed in his “thery f relativity” that nt even time, mass r length are cnstant -- they change accrding t ur experience f them.
cnstant adj. 1) staying the same 恒久不变的 2) happening regularly r all the time 持续不断的，经常发生的 3) lyal and faithful 忠实的，忠诚的
eg In ur wrld nthing seems cnstant.In histry, change is cnstant.He is cnstant t his friends.
cnstant n. 1) a number r quantity that never changes常数，常量，恒量2) smething that stays the same even thugh ther things change 不变的事; 恒定的事物
eg In the wrld f fashin it smetimes seems that the nly cnstant is ceaseless change.Tw significant cnstants have been fund in a number f research studies.
6. This blue muld was in fact the natural frm f penicillin, which Fleming perceived culd be used t kill bacteria.
perceive vt. : t ntice, see, r recgnize smething 察觉，注意到，发觉
eg I perceived a nte f unhappiness in her vice. A key task is t get pupils t perceive fr themselves the relatinship between success and effrt.
7. During the Cld War, a “huge netwrk” f cmputers was prpsed by tw American scientists.
prpse vt. : t suggest an idea, methd etc as an answer t a scientific questin r as a better way f ding smething 提出(某观点、方法等)
eg A number f theries have been prpsed t explain the phenmenn.He prpsed a pssible slutin t me.
What d yu think are the mst imprtant inventins r discveries f the 20th century?
Can yu name a few inventrs?
Albert Einstein
Alexander Fleming
Eckert & Mauchly
Tim Berners-Lee
What makes them great? What des it take fr an inventr t invent smething?
premier scientist pineers f the 20th centuryt be cmmitted t t be inspired byt be prpsed by t imprve the quality f human life
Which f the fllwing imprtant discveries f the 20th century are mentined in the first paragraph?A. Splitting the atmB. Discvering the smallest particle f matterC. Replacing diseased rgans with dnated nesD. Flying arund the wrld and launching satellitesE. Discvering the causes f diseases under micrscpesF. Using mbile phnes, emailing and sending instant messages
Read the text abut sme f the pineers in science during the 20th century. What discveries are mentined? Wh made them?
Match the discveries r inventins (1-4) with hw they came abut (a-d).
1 E=mc2 2 penicillin3 the first cmputer4 the Internet
a scientists wrked tgether as a team b there was a lucky accident c different scientists wrked n it fr many years d a scientist was inspired
1 ____ 2 ____ 3 ____ 4 ____
Listen t the text and find infrmatin abut hw the fllwing things were invented / discvered. Organise the infrmatin in yur wn way. Then describe the prcess in grups.
Significance?
inspired while rcking his baby
shwing hw a small piece f mass culd prduce an unbelievable amunt f energy
thery f relativity
a lucky accident
helping t save the lives f millins
humility abut the amazing utcme f his discvery
Eckert and Mauchly
wrking tgether as a team
the wrld’s first cmputer
t imprve the accuracy f the missiles f the US Navyusing t much energy
different scientists wrking n it fr many years
enabling cmputers all ver the wrld t cmmunicate with each ther
withut the Internet, unimaginable
Read the text again and write T (true), F (false) r NI (n infrmatin) in brackets.( ) 1 It is nt easy t chse the single mst imprtant discveries f the 20th century. ( ) 2 An atm is the smallest particle f matter. ( ) 3 Einstein was at wrk when he thught f the questin “E=mc2”. ( ) 4 Einstein participated in the prgramme that develped the nuclear bmb. ( ) 5 Einstein bserved changes in time, size and mass.
( ) 6 Fleming had been studying bacteria in his labratry when the discvery happened.( ) 7 Fleming develped the prcess f making penicillin. ( ) 8 The first cmputer prject failed t meet its riginal gal.( ) 9 The first cmputer was extremely difficult t prgramme. ( ) 10 Cmputers culd nt cnnect t each ther befre 1990.
1 Which discvery r inventin mentined in the text has been the mst imprtant s far? Why?2 Which discvery r inventin will mst influence the future? Why?3 Hw did the writer cnnect the paragraphs? Circle the signal wrds r phrases.
Cmplete the passage with the crrect frm f the wrds belw.
rbit, missile, enable, launch, accuracy, scientific, micrscpe, inventr, bilgist
I really dn’t knw what I want t d when I leave schl. My dad is a cmputer engineer wrking n the imprvement f the 1________ f the Navy’s 2________. I wuld like t fllw in his ftsteps, but then I’d have t sit in frnt f a cmputer all day. My mum is a 3_________, but it seems t me that all she
Pst-reading
des is lking at bacteria thrugh a 4____________. All that stuff abut 5___________ finding that save peple’s lives is pretty interesting, but I think I might be mre interested in studying medicine. But then again, my uncle is a scientist and he is always talking abut 6____________ satellites int 7________. I find this very exciting. I knw what I want t be! I culd be an 8_________! I culd cme up with hundreds f inventins that will 9_________ peple t live better lives. But … I dn’t think there’s a university curse fr inventrs. Maybe I shuld just find ut what I really like first.
3 Line 12: Althugh … Here are sme f them.Line 15: One f the 20th century’s premier scientists was …Line 24: … anther imprtant finding …Line 34: … when Fleming’s discvery was …Line 49: With the develpment f cmputers …Line 57: These pineers …
1. Medical advances ranged frm discvering the causes f diseases under micrscpes t staging peratins t replace diseased rgans with dnated nes.
range frm ... t ... : t include a variety f different things r peple in additin t thse mentined 包括（从……到……）之间的各类事物
eg The shw had a massive audience, ranging frm children t grandparents. The jbs range frm advertising sales t engineering.
range frm ... t ... : if prices, levels, temperatures etc range frm ne amunt t anther, they include bth thse amunts and anything in between （价格、水平、温度等）处于某个范围之内（包括上下限）
eg Csts range frm 50 t several hundred dllars. There were 120 students whse ages ranged frm 10 t 18.
dnate vt. 1) t allw sme bld r a bdy rgan t be remved frm yur bdy s that it can be used in a hspital t help smene wh is ill r injured 捐（血），献（血）; 捐献（器官） 2) t give smething, especially mney, t a persn r an rganizatin in rder t help them 捐赠，捐献（尤指钱）
eg The appeal fr peple t dnate bld was very successful. Last year he dnated $1,000 t cancer research. The cmputers were dnated by lcal cmpanies.
2. …and the way we crrespnd went frm writing letters t emailing and sending instant messages.
crrespnd vi. : t write letters t smene and receive letters frm them 通信
crrespnd with sb. 与……通信eg Fr the next three years they crrespnded regularly. I've been crrespnding with several experts in the field.
crrespnd v. : if tw things r ideas crrespnd, the parts r infrmatin in ne relate t the parts r infrmatin in the ther 符合; 相一致
crrespnd t / with sth. 相符合, 相一致eg These gds dn’t crrespnd with / t my rder. His wrds always dn’t crrespnd with / t his actins.
【拓展】crrespndence n. 相符，一致；通信，信件 in crrespndence with 和……一致；和……有通信联系crrespndent n. 通讯员，记者crrespnding adj. 相符的；相应的
instant adj. : 1) happening r prduced immediately 立刻的，马上的 2) instant fd, cffee etc is in the frm f pwder and prepared by adding ht water (食物、咖啡等)即食的，调制方便的
eg They tk an instant liking t each ther. We can’t prmise instant slutins, but we can prmise t listen. instant cffee / sup / ndles即溶咖啡／速食汤 /方便面 I want t have a cup f instant cffee.
instant n. : a mment 片刻，顷刻
the instant (that) 一……（就……）in an instant 立刻，立即，马上eg She wke up the instant the phne rang. The pain disappeared in an instant.
3. We started flying arund the wrld, launching satellites int rbit and, at the same time, scientists figured ut hw t split the atm, previusly thught t be the smallest particle f matter in the universe.句子结构分析： and连接的并列分句；flying arund the wrld和launching satellites int rbit都是started的宾语；previusly thught t be…过去分词短语作后置定语，修饰atm。
eg An experimental satellite was launched frm the Jiuquan Satellite Launch Center n Thursday mrning. The scheme was launched a year ag. He is launching his sn n a career in banking.
launch vt. 1) t send a weapn r spacecraft int the sky r int space 发射 2) t start smething, usually smething big r imprtant 发动，发起，开始从事
figure ut : t understand sth. r t find an answer r slutin fr smething 算出，想出；理解，弄明白
eg It can be difficult t figure ut creative ways t finish the task. I can't figure ut why he des these crazy things.We had t figure ut the cnnectin between the tw events.
4. Althugh it is impssible t chse the mst imprtant discvery, it is pssible t single ut a few pineers f the 20th century.
althugh引导的让步状语从句
It作形式主语，后面的动词不定式是真正的主语。
本句中作者使用了Althugh it is impssible t…, it is pssible t…结构来构成强调和对比。这种句型可以运用到我们的日常交际或写作中，提升语言亮点。
single ut: t treat r t speak abut (smene r smething in a grup) in a way that is different frm the way yu treat r speak abut thers挑出；挑选
eg The cach singled ut the players wh played prly.Wh wuld yu single ut as the mst prmising student f the year?We wanted t single ut the main threat t civilisatin.
5. Einstein then shwed in his “thery f relativity” that nt even time, mass r length are cnstant -- they change accrding t ur experience f them.
cnstant adj. 1) staying the same 恒久不变的 2) happening regularly r all the time 持续不断的，经常发生的 3) lyal and faithful 忠实的，忠诚的
eg In ur wrld nthing seems cnstant.In histry, change is cnstant.He is cnstant t his friends.
cnstant n. 1) a number r quantity that never changes常数，常量，恒量2) smething that stays the same even thugh ther things change 不变的事; 恒定的事物
eg In the wrld f fashin it smetimes seems that the nly cnstant is ceaseless change.Tw significant cnstants have been fund in a number f research studies.
6. This blue muld was in fact the natural frm f penicillin, which Fleming perceived culd be used t kill bacteria.
perceive vt. : t ntice, see, r recgnize smething 察觉，注意到，发觉
eg I perceived a nte f unhappiness in her vice. A key task is t get pupils t perceive fr themselves the relatinship between success and effrt.
7. During the Cld War, a “huge netwrk” f cmputers was prpsed by tw American scientists.
prpse vt. : t suggest an idea, methd etc as an answer t a scientific questin r as a better way f ding smething 提出(某观点、方法等)
eg A number f theries have been prpsed t explain the phenmenn.He prpsed a pssible slutin t me.
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