还剩28页未读，
继续阅读
所属成套资源：新北师大版英语选择性必修第一册课件PPT整套
成套系列资料，整套一键下载
- Unit 2 Success Writing workshop 课件-北师大版（2019）选择性必修第一册 课件 6 次下载
- Unit 3 Conservation Lesson 1 The sixth extinction（1） 课件-北师大版（2019）选择性必修1 课件 10 次下载
- Unit 3 Conservation Lesson 2 War on a plastic packets-课件-北师大版（2019）选择性必修1 课件 5 次下载
- Unit 3 Conservation Lesson 3 The road to destruction（1）课件-北师大版（2019）选择性必修第一册 课件 5 次下载
- Unit 3 Conservation Lesson 3 The road to destruction（2）-课件-北师大版（2019）选择性必修第一册 课件 6 次下载
英语选择性必修 第一册Lesson 1 The Sixth Extinction优质课ppt课件
展开
这是一份英语选择性必修 第一册Lesson 1 The Sixth Extinction优质课ppt课件，共36页。PPT课件主要包含了Lead in，Practice，定语从句，Group Work，Homework等内容，欢迎下载使用。
Part 1—Lead in
Backgrund histry f the sixth extinctin.Causes f the sixth extinctin.Effects f the sixth extinctin.What we can d t prevent the sixth extinctin.
Part 2—Reading cmprehensin
Let’s read!
Read and think
Extinctins, where entire species are wiped ut, are nt unusual in ur Earth’s histry.
wipe ut: 彻底毁灭 用……擦……wipe sth. away/ ff/ up 擦掉/擦净某物wipe sth. ff/ frm... 把某物从……处擦掉wipe sth. frm/ ff ne’s mind/ memry 有意忘记某事
整个物种灭绝，在我们地球的历史上并不罕见。
Useful expressins
非限制性定语从句，先行词extinctins，关系副词where
In fact, ver 90 percent f all species that ever lived are nw extinct.
ever: “在任何时候” ，有时可与always替换，表示“始终，一直”Hnesty ever pays.可出现在过去时态或完成时态的疑问句中。Did yu ever see such a grand parade?在疑问句中，长用来加强语气。What ever d yu want?
事实上，有史以来90%以上的物种现已灭绝。
And the fifth event, which ccured 66 millin years ag, caused the death f the dinsaurs.
ccur: 用作动词基本含义是“呈现在视野、思想、意识中”。一般只用作不及物动词，含有“出乎意料”的意味。The explsin ccured during an exercise near the twn.有时还可用作系动词，接形容词作表语，表示“存在”。Few metals ccur free.指“想到”时，后面跟介词t。It ccured t me t visit my teacher.
第五次事件发生在6600万年前，导致恐龙死亡。
The reasns fr extinctins are varied.
varied: adj. “各种各样的，形形色色的”varitey: n. 多种样式；不同种类；多变性a variety f styles 各种风格variety in ne’s lifestyle 生活方式的多样化variety shw 综艺节目vary vi. &vt. 变化，改变varius adj. 各种各样的 =a variety f
物种灭绝的原因多种多样。
... the decrease f the xygen cntent f the sea and glbal warming.
decrease: 名词，表示“减少；减少的量” 动词，表示“减少”。decrease in 在……减少decrease t+数字 下降到……decrease by+/分数、百分数或其他表示数量的词 下降了……xygen cntent: 氧含量
……海洋含氧量的减少和全球变暖。
This time, human activity will be t blame.
blame: 责怪，指责be t blame (fr sth.) 应该为（某事）负责人blame sth. n sb./ sth. 把某事归咎于某人/某事blame sb. fr (ding) sth. 因（做）某事而责备某人put/ lay/ place the blame (fr sth. ) n sb. 把某事归咎于某人
这一次，人类活动将是罪魁祸首。
Althugh it is nt unusual fr species t die ut naturally, the rate at which this is nw happening is cause fr cncern.
die ut: 消失；绝迹、灭绝die away: （声音、风、光等）逐渐消失die ff: （一群生物）相继死去die dwn: （慢慢地）熄灭；平息下来rate: 比率at the rate f... 以……之比率
虽然物种自然灭绝并不罕见，但现在这种情况发生的速度令人担忧。
... that is, the “backgrund extinctin rate”.
that is: 也就是说；即（用于纠正之前说过的内容）=that is t say
……即“背景消光率”。
They fund that human activity is causing species t die ut 1,000 times faster than nrmal.
1000 times faster than: 比……快一千倍表示倍数句式：A is... times as lng/ wide/ high/ large/ deep B. The dictinary is almst five times as expensive as that ne.A is... times lnger/ wider/ higher/ B. The new street is 3 times wider than the ld ne.A is... times the length/ width/ height/ size/ depth... f B. China is almst twice the size f their cuntry in area.A is... times+what 从句 The dictinary csts three times what it did befre.A has increased/ decreased/ reduced/ gne up/ risen The price f meat has gne up by three times.
他们发现人类活动导致物种灭绝的速度比正常情况快1000倍。
There is a lng list f reasns why s many species are dying ut: air and water pllutin, frests being destryed, factry farming and verfishing.
destry: 破坏；毁掉。destry sb. 毁掉某人（的一生）be destryed by fire被大火烧毁destructin 破坏destryer 破坏者verfishing: 过度捕捞ver-:前缀，表示过度
这么多物种灭绝的原因有很多：空气和水污染、森林被破坏、工厂化养殖和过度捕捞。
It is clear that human activity has negatively affected all ther species n Earth, including animals and plants.
It is clear that: 很明显……，it作形式主语，该句为主语从句affect: 影响；感染；打动be affected by... 被……所打动/影响be affected with... 患上……疾病effect: 效果；作用；影响have an effect n /upn...对……有影响/效果cause and effect因果cme int effect 开始生效；使生效put/ effect实施；使生效
很明显，人类活动对地球上所有其他物种，包括动物和植物，都产生了负面影响。
Withut frests, we wuld have n air t breathe, and withut clean water we wuld be unable t survive.
withut和n构成双重否定，用以加强语气。withut还可以表示“如果没有”，用于虚拟语气，相当于but fr。Withut his wartime experiences, Hemingway wuldn’t have written his famus nvel A Farewell t Arms.
没有森林，我们就没有空气可以呼吸，没有干净的水，我们就无法生存。
Experts say that it is nt yet t late, if we take actin nw.
take actin: 采取行动
专家表示，如果我们现在就采取行动，现在还为时不晚。
Fr example, we need t take steps t save endangered species, including setting up special areas where plants and animals areas where plants and animals can be prtected.
take steps:采取措施
例如，我们需要采取措施保护濒危物种，包括建立特殊的动植物保护区和动植物保护区。
In shrt, if we want t survive, we need t stp destrying the planet that we live n and start t prtect it.
in shrt: 简而言之
简而言之，如果我们想要生存，我们需要停止破坏我们赖以生存的星球，并开始保护它。
Use the adjectives and nuns t make meaningful expressins. Then use each expressin t make a sentence. Write the sentences in the space prvided.
1. Crucially, culd it lwer the glbal average temperature f the earth in time t avid killing millins mre peple, mre animals and indeed entire species?
2. The panda ambassadrs will visit a dzen cuntries t prmte the prtectin f the endangered animal.
3. They have had a significant change in plicy n paternity leave.
4. They are lking at ways f reducing the waste f natural resurces.
5. Well, tday we are witnessing a sixth mass extinctin.
6. Slar energy can be transfrmed int pwer.
Cmplete the paragraph abut extinctins using the crrect frm f the phrases belw.
Let’s check!
B is knwn as
C has affected
Fcus n language
The girl wh is playing tennis is my friend.This is the place where I hid the key.限制性定语从句修饰名词或代词，表明所修饰的是哪个人或物。
My friend, wh is playing tennis, cmes frm Ethipia.The building, where an imprtant cnference is being held, is in the centre f the city.非限制性定语从句提供句子意义以外的额外信息，要用逗号隔开。
It is snwing heavily, which makes children feel excited.The river is seriusly plluted, which has caused much public attentin.非限制性定语从句中的关系代词可以指代整个句子。
1 Extinctins, where entire species are wiped ut, are nt unusual in ur Earth’s histry.2 These include the third mass extinctin, knwn as the “ Great Dying”, which killed 90% t 96% f all species.3 A 2015 study by scientists wh were based at Brwn University and Duke University in the US, lked at hw quickly species die ut due t natural If a sixth mass extinctin ccurs, scientists wh have studied the issue believe that up t three quarters f all species n Earth culd die ut.5 We need t take steps t save endangered species, including setting up special areas where plants and animals can be prtected.
Read the sentences and discuss which wrd(s) the clauses (in italics) refer t.
Underline the relative clauses in the sentences and decide if they are defining(D) r nn-defining (ND). Translate them int Chinese. Discuss the difference in meaning between the tw types f relative clauses.
Chse tw r three envirnmental prblems that are caused by human activity. Offer slutins. Try t use relative clauses where apprpriate.
Part 3—Hmewrk
Recite the key wrds and expressins.Write the sentences t match the endings.Example ___, which was quite a surprise. My painting wn the first prize, which was quite a surprise.1 _____________________, which made me angry.2 _____________________, wh isn’t very kind at all.3 _____________________,which I really liked.4 _____________________,whse cusin is cming t twn.
Part 1—Lead in
Backgrund histry f the sixth extinctin.Causes f the sixth extinctin.Effects f the sixth extinctin.What we can d t prevent the sixth extinctin.
Part 2—Reading cmprehensin
Let’s read!
Read and think
Extinctins, where entire species are wiped ut, are nt unusual in ur Earth’s histry.
wipe ut: 彻底毁灭 用……擦……wipe sth. away/ ff/ up 擦掉/擦净某物wipe sth. ff/ frm... 把某物从……处擦掉wipe sth. frm/ ff ne’s mind/ memry 有意忘记某事
整个物种灭绝，在我们地球的历史上并不罕见。
Useful expressins
非限制性定语从句，先行词extinctins，关系副词where
In fact, ver 90 percent f all species that ever lived are nw extinct.
ever: “在任何时候” ，有时可与always替换，表示“始终，一直”Hnesty ever pays.可出现在过去时态或完成时态的疑问句中。Did yu ever see such a grand parade?在疑问句中，长用来加强语气。What ever d yu want?
事实上，有史以来90%以上的物种现已灭绝。
And the fifth event, which ccured 66 millin years ag, caused the death f the dinsaurs.
ccur: 用作动词基本含义是“呈现在视野、思想、意识中”。一般只用作不及物动词，含有“出乎意料”的意味。The explsin ccured during an exercise near the twn.有时还可用作系动词，接形容词作表语，表示“存在”。Few metals ccur free.指“想到”时，后面跟介词t。It ccured t me t visit my teacher.
第五次事件发生在6600万年前，导致恐龙死亡。
The reasns fr extinctins are varied.
varied: adj. “各种各样的，形形色色的”varitey: n. 多种样式；不同种类；多变性a variety f styles 各种风格variety in ne’s lifestyle 生活方式的多样化variety shw 综艺节目vary vi. &vt. 变化，改变varius adj. 各种各样的 =a variety f
物种灭绝的原因多种多样。
... the decrease f the xygen cntent f the sea and glbal warming.
decrease: 名词，表示“减少；减少的量” 动词，表示“减少”。decrease in 在……减少decrease t+数字 下降到……decrease by+/分数、百分数或其他表示数量的词 下降了……xygen cntent: 氧含量
……海洋含氧量的减少和全球变暖。
This time, human activity will be t blame.
blame: 责怪，指责be t blame (fr sth.) 应该为（某事）负责人blame sth. n sb./ sth. 把某事归咎于某人/某事blame sb. fr (ding) sth. 因（做）某事而责备某人put/ lay/ place the blame (fr sth. ) n sb. 把某事归咎于某人
这一次，人类活动将是罪魁祸首。
Althugh it is nt unusual fr species t die ut naturally, the rate at which this is nw happening is cause fr cncern.
die ut: 消失；绝迹、灭绝die away: （声音、风、光等）逐渐消失die ff: （一群生物）相继死去die dwn: （慢慢地）熄灭；平息下来rate: 比率at the rate f... 以……之比率
虽然物种自然灭绝并不罕见，但现在这种情况发生的速度令人担忧。
... that is, the “backgrund extinctin rate”.
that is: 也就是说；即（用于纠正之前说过的内容）=that is t say
……即“背景消光率”。
They fund that human activity is causing species t die ut 1,000 times faster than nrmal.
1000 times faster than: 比……快一千倍表示倍数句式：A is... times as lng/ wide/ high/ large/ deep B. The dictinary is almst five times as expensive as that ne.A is... times lnger/ wider/ higher/ B. The new street is 3 times wider than the ld ne.A is... times the length/ width/ height/ size/ depth... f B. China is almst twice the size f their cuntry in area.A is... times+what 从句 The dictinary csts three times what it did befre.A has increased/ decreased/ reduced/ gne up/ risen The price f meat has gne up by three times.
他们发现人类活动导致物种灭绝的速度比正常情况快1000倍。
There is a lng list f reasns why s many species are dying ut: air and water pllutin, frests being destryed, factry farming and verfishing.
destry: 破坏；毁掉。destry sb. 毁掉某人（的一生）be destryed by fire被大火烧毁destructin 破坏destryer 破坏者verfishing: 过度捕捞ver-:前缀，表示过度
这么多物种灭绝的原因有很多：空气和水污染、森林被破坏、工厂化养殖和过度捕捞。
It is clear that human activity has negatively affected all ther species n Earth, including animals and plants.
It is clear that: 很明显……，it作形式主语，该句为主语从句affect: 影响；感染；打动be affected by... 被……所打动/影响be affected with... 患上……疾病effect: 效果；作用；影响have an effect n /upn...对……有影响/效果cause and effect因果cme int effect 开始生效；使生效put/ effect实施；使生效
很明显，人类活动对地球上所有其他物种，包括动物和植物，都产生了负面影响。
Withut frests, we wuld have n air t breathe, and withut clean water we wuld be unable t survive.
withut和n构成双重否定，用以加强语气。withut还可以表示“如果没有”，用于虚拟语气，相当于but fr。Withut his wartime experiences, Hemingway wuldn’t have written his famus nvel A Farewell t Arms.
没有森林，我们就没有空气可以呼吸，没有干净的水，我们就无法生存。
Experts say that it is nt yet t late, if we take actin nw.
take actin: 采取行动
专家表示，如果我们现在就采取行动，现在还为时不晚。
Fr example, we need t take steps t save endangered species, including setting up special areas where plants and animals areas where plants and animals can be prtected.
take steps:采取措施
例如，我们需要采取措施保护濒危物种，包括建立特殊的动植物保护区和动植物保护区。
In shrt, if we want t survive, we need t stp destrying the planet that we live n and start t prtect it.
in shrt: 简而言之
简而言之，如果我们想要生存，我们需要停止破坏我们赖以生存的星球，并开始保护它。
Use the adjectives and nuns t make meaningful expressins. Then use each expressin t make a sentence. Write the sentences in the space prvided.
1. Crucially, culd it lwer the glbal average temperature f the earth in time t avid killing millins mre peple, mre animals and indeed entire species?
2. The panda ambassadrs will visit a dzen cuntries t prmte the prtectin f the endangered animal.
3. They have had a significant change in plicy n paternity leave.
4. They are lking at ways f reducing the waste f natural resurces.
5. Well, tday we are witnessing a sixth mass extinctin.
6. Slar energy can be transfrmed int pwer.
Cmplete the paragraph abut extinctins using the crrect frm f the phrases belw.
Let’s check!
B is knwn as
C has affected
Fcus n language
The girl wh is playing tennis is my friend.This is the place where I hid the key.限制性定语从句修饰名词或代词，表明所修饰的是哪个人或物。
My friend, wh is playing tennis, cmes frm Ethipia.The building, where an imprtant cnference is being held, is in the centre f the city.非限制性定语从句提供句子意义以外的额外信息，要用逗号隔开。
It is snwing heavily, which makes children feel excited.The river is seriusly plluted, which has caused much public attentin.非限制性定语从句中的关系代词可以指代整个句子。
1 Extinctins, where entire species are wiped ut, are nt unusual in ur Earth’s histry.2 These include the third mass extinctin, knwn as the “ Great Dying”, which killed 90% t 96% f all species.3 A 2015 study by scientists wh were based at Brwn University and Duke University in the US, lked at hw quickly species die ut due t natural If a sixth mass extinctin ccurs, scientists wh have studied the issue believe that up t three quarters f all species n Earth culd die ut.5 We need t take steps t save endangered species, including setting up special areas where plants and animals can be prtected.
Read the sentences and discuss which wrd(s) the clauses (in italics) refer t.
Underline the relative clauses in the sentences and decide if they are defining(D) r nn-defining (ND). Translate them int Chinese. Discuss the difference in meaning between the tw types f relative clauses.
Chse tw r three envirnmental prblems that are caused by human activity. Offer slutins. Try t use relative clauses where apprpriate.
Part 3—Hmewrk
Recite the key wrds and expressins.Write the sentences t match the endings.Example ___, which was quite a surprise. My painting wn the first prize, which was quite a surprise.1 _____________________, which made me angry.2 _____________________, wh isn’t very kind at all.3 _____________________,which I really liked.4 _____________________,whse cusin is cming t twn.
相关课件
高中英语Lesson 1 The Sixth Extinction课文配套课件ppt： 这是一份高中英语Lesson 1 The Sixth Extinction课文配套课件ppt，共60页。PPT课件主要包含了学习目标，双基夯实·课前排查，核心突破·要点讲解，联想串记，开放课堂·自修自读，夯实基础·一遍落实等内容，欢迎下载使用。
高中北师大版 (2019)Lesson 1 The Sixth Extinction课文配套课件ppt： 这是一份高中北师大版 (2019)Lesson 1 The Sixth Extinction课文配套课件ppt，共35页。PPT课件主要包含了extinction，species，die out，endangered，habitat，Extinction，would have等内容，欢迎下载使用。
高中英语北师大版 (2019)选择性必修 第一册Unit 3 ConservationLesson 1 The Sixth Extinction授课课件ppt： 这是一份高中英语北师大版 (2019)选择性必修 第一册Unit 3 ConservationLesson 1 The Sixth Extinction授课课件ppt，共24页。PPT课件主要包含了Warming Up，Summary，Discussion等内容，欢迎下载使用。
