高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教学ppt课件

1．starve vi.&vt. (使)挨饿；饿死→starvation n．饿死；挨饿；绝食

2．sustain vt.维持；遭受；承受住→sustainable adj.可持续的；合理利用的

3．comprehensive adj. 全部的；所有的；详尽的→

comprehension n．理解

4．frequent adj. 频繁的；经常的→frequently adv.频繁地；经常→frequency n．频率；频繁

5．restrict vt. 限制；限定；束缚→restriction n. 限制规定；限制法规；约束→restrictive adj.限制的；限制性的；约束的

6．harmony n．协调；和睦；融洽；调和→harmonious adj.和谐的

7．origin n. 起源；开始→original adj.原始的；最初的；独创的；新颖的→originate vi.&vt. 起源；发源；创立

8．regular adj. 定期的；规律的→regularly adv. 定期地；规律地→regulate vt.& vi.约束；管理→regulation n. 章程；规章制度

9．inspect vt. 检查；查看；视察→inspection n. 检查；查看；视察

10．tolerate vt. 忍受；包容；容许→tolerant adj. 宽容的；容忍的→tolerance n. 宽容；容忍

1．release vt.&n.排放；释放；发布

①Firefighters took two hours to release the driver from the wreckage. 释放

②Under the agreement，releases of cancer­causing chemicals will be cut by about 80 percent.              排放

③He is releasing an album of love songs. 发布

2．seize vt. 抓住；夺取；控制

①“Leigh，” he said，“seizing my arm to hold me back.”  抓住

②Troops have seized the airport and railway terminals(铁路枢纽).  夺取

③UN officials say two military observers were seized by the Khmer Rouge yesterday.               控制

Words and Phrases

知识要点1　starve vi.& vt.(使)挨饿；饿死

[教材P26]An expert who has studied polar bears for many years said that from the position of its dead body，the bear appeared to have starved and died.

一位多年研究北极熊的专家说，从北极熊尸体所处位置来看，它看起来是死于饥饿。

[例1]　The new job doesn't pay as much but we won't starve!

新工作的工资不多，不过我们不至于挨饿！

[例2]　A number of the prisoners we saw are starving.

我们看到一些囚犯快要饿死了。

[即学即练]　单句语法填空/完成句子

①The frontier station was starved for food and water.

②Whole communities starved to death during the long drought.

③She went on a starvation(starve) diet and ended up in hospital.

④Our factories are starved of/for first­class technical men now.

现在我们的工厂缺少一流的技术人员。

[小片段填空]

Mr.White earns only a little wage，so he starves for a job with better pay.You see，no one likes to starve to death.

知识要点2　refer to查阅，参考；涉及，关于；提到，谈起，指的是；提交

[教材P26－27]The “natural” greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earth's surface as short­wave radiation.

“自然”温室效应是指来自太阳的热量进入大气层，以短波辐射的形式为地表增温。

[例1]　I promised not to refer to the matter again.

我答应过不再提这事了。

[例2]　Please refer to the right­hand column of page 200 of this dictionary.

请参看这本词典第二百页右面一栏。

[即学即练]　单句语法填空/完成句子

①Tom is going to refer the matter to the meeting.

②Qiao Feng is referred to as a big hero.

③Some people refer all the troubles to bad luck instead of lack of ability.

有些人把自己所有的苦恼都归咎于运气不佳，而不认为是缺乏能力。

知识要点3　be trapped in 被困在……中

[教材P27]When people produce huge amounts of extra greenhouse gases by burning fossil fuels，more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly.

当人们通过燃烧化石燃料产生大量额外的温室气体时，更多的热能被困在大气中，导致地球表面温度迅速上升。

[例1]　She was trapped in the burning house.

她被困在燃烧着的房子里了。

[例2]　He was trapped in an unhappy marriage.

他陷入不幸的婚姻之中。

[即学即练]　单句语法填空/完成句子

①I was trapped into telling(tell) the police all I knew.

②A lot of us fall into the trap of finding(find) happiness from the outside world.

③If the bus was trapped in the snow，there was virtually no way to evacuate those four kids.

如果公共汽车被困在暴风雪中，那么几乎没有办法使这四个孩子撤离。

[小片段填空]

The hunter set a trap which was used to trap the animal into moving(move) into the trap.But the little boy fell into the trap by accident.

知识要点4　result in 导致；造成

[教材P27]Continued greenhouse gas emissions will result in further warming and long­lasting changes to the global climate.

不断排放的温室气体将导致全球气候进一步变暖，造成持久性全球气候变化。

[例1]　Food allergies can result in an enormous variety of different symptoms.

食物过敏会引发很多不同的症状。

[例2]　These policies resulted in many elderly people feeling happy.

这些政策使得许多老人感到幸福。

[即学即练]　单句语法填空/完成句子

①Children's fear and dislike of books may result from being made to read aloud before others.

②As a result of his illness，he was late for class.

③When you do something with faith，it will result in success．

当你有信心的去做某事时，就会成功。

知识要点5　restrict vt.限制；限定；束缚

[教材P27]We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.

我们作为个人也可以通过限制我们的生活方式所产生的二氧化碳量来减少我们的“碳足迹”。

[例1]　Having small children tends to restrict your freedom.

有年幼的孩子往往会限制你的自由。

[例2]　The long skirt restricted her movements.

长裙妨碍了她的行动。

[即学即练]　单句语法填空/完成句子

①I restrict myself(me) to one cup of coffee a day.

②We restrict the number of students per class to 40.

③The park is open to the public without restriction(restrict)．

④The speed is restricted to 30 kilometers an hour here.

在此地车速被限制为每小时三十公里。

知识要点6　seize vt.抓住；夺取；控制

[教材P27]It is our responsibility to seize every opportunity to educate everyone about global warming...

我们有责任抓住每一个机会，教育大家认识全球变暖……

[例1]　She tried to seize the gun from him.

她试图抢夺他的枪。

[例2]　The army has seized control of the country.

军队已经控制全国。

[即学即练]　单句语法填空/完成句子

①The troop seized the city by surprise before the enemies realised it.

②The little boy seized me by the arm to beg for some money.

③We seize on his remark and regard it as a promise.

④Bob seized on/upon the rain as an excuse for missing school.

鲍勃以下雨为借口不去上学。

知识要点7　submit vt.& vi.提交；呈递；屈服；顺从；认为

[教材P28]According to the report submitted by researchers，between 20 and 25 percent of all annual carbon dioxide emissions are caused by the destruction of tropical forests.

根据研究人员提交的报告，每年20%至25%的二氧化碳排放量是由热带森林的破坏造成的。

[例1]　Completed projects must be submitted by 10 March.

完成的方案必须在3月10日前提交上来。

[例2]　But I cannot submit，I can become my own master.

但我并不会屈服的，我会成为自己的主人的。

[即学即练]　单句语法填空/完成句子

①He submitted the report on the matter to the committee.

②We'll submit ourselves(us) to the court's judgement.

③I submit that the terms are entirely unreasonable.

④The students must submit themselves to the disciplines at school.

学生在学校必须遵守纪律。

[小片段填空]

The general had to submit the agreement to the enemies.That is to say，he submitted(submit) to them.

Sentence Patterns

重点句式1　There is little doubt that...

[教材P26]There is little doubt that Earth is getting warmer and warmer.

毫无疑问，地球正变得越来越暖和。

[句式分析]　There is little/no doubt that...毫无疑问……；doubt后面用that引导同位语从句；当doubt用于否定句和疑问句时，后面的从句用that引导；用于肯定句时，后面的从句用whether引导。

[例1]　There is no doubt that it was a strange and interesting situation.

毫无疑问，那是一个奇怪而有趣的局面。

[例2]　There is no doubt at all that we did the right thing.

毫无疑问，我们做得对。

[即学即练]　单句语法填空/完成句子

①I don't doubt that he will succeed.

②I doubt whether/if we will make a profit out of it.

③There is no doubt that in your mind he is innocent，is there?

④There is some doubt whether he will come to help us．

他是否会来帮助我们还有些疑虑。

重点句式2　not only...but also...

[教材P27]There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide，not only causing serious damage，but also costing human lives.

有强有力且详尽的证据表明，气温上升导致世界范围内的极端天气和自然灾害增加，不仅造成严重破坏，而且造成人员伤亡。

[句式分析]　句中的not only...but also...表示“不但……，而且……”，连接并列的句子结构。

[例1]　Air not only occupies space，but it also has weight.

空气不仅占据空间，而且它还具有重量。

[例2]　Shakespeare was not only a writer but also an actor.

莎士比亚不仅是一个作家，还是一个演员。

[即学即练]　单句语法填空/完成句子

①Not only the students but also the teacher was(be) invited.

②Not only are you funny，but also you are witty (机智的)．

③Not only you but also she has(have) to attend the ceremony.

④The old workers instruct the young workers not only in words but in deeds．

老工人对青年工人不仅言传而且身教。

1．Experts claimed that low sea­ice levels caused by climate change meant the bear could not hunt seals as before，so it had to travel greater distances in order to find food.

[分析]　该句为复合句。Experts claimed 是主句；that引导宾语从句，作claimed的宾语；该宾语从句中的the bear could not hunt seals as before也是宾语从句，作meant的宾语；caused by climate change是过去分词作后置定语，修饰low sea­ice levels；so连接的是并列句。

[译文]　专家称，气候变化导致的海洋冰川位置低意味着这只熊不能像以前那样捕猎海豹，因此它必须走更远的距离才能找到食物。

2．Climate scientists often mention a key climate process called the “greenhouse effect”，which has two common meanings: the “natural” greenhouse effect and the “man­made” greenhouse effect.

[分析]　句中的“called the ‘greenhouse effect’”是过去分词短语作定语，修饰process；which引导非限定性定语从句。

[译文]　气候科学家经常提到一个关键的气候过程，叫作“温室效应”，它有两个共同的含义：“自然”温室效应和“人为”温室效应。

Ⅰ.单句语法填空

1．Not only he but also we are(be) interested in football.

2．I doubt whether they are not cheating people into making the bargain sale.

3．Drought has left more than two million people close to starvation(starve)．

4．The teacher referred(refer) to in my last letter has gone abroad.

5．The old man was trapped into buying(buy) a second­hand TV set.

6．The speech has resulted in a firestorm of controversy.

7．Discipline problems are by no means restricted to children in families dependent on benefits.

8．Before he could run away，she seized him by the collar.

9．He has submitted himself(him) a search by the guard.

10．When molten(melt) steel cools，it changes into a solid.

Ⅱ.短语填空

starve to death；refer to；be trapped in；take action；result in；submit to

1．This resulted in a considerable loss to the exchequer(财政部)．

2．Luckily，he was not murdered，but trapped in the elevator for days.

3．Study the example and refer to the explanation below.

4．Tens of thousands of people starved to death because of the civil war.

5．The heroic people will never submit to foreign rule.

6．They took action to speed the new law through Parliament(国会)．

Ⅲ.课文语法填空

There is little doubt that Earth is getting warmer and warmer.In 2013，many people 1.were shocked(shock) by a news photo of a dead polar bear which appeared to have starved and died.Experts claimed that low sea­ice levels 2.caused(cause) by climate change meant the bear could not hunt seals as before，so it had to travel greater distance 3.to find(find) food.Then what is causing the increase in the global average surface temperature？Climate scientists often mention a key climate process called the “greenhouse effect”，4.which has two common meanings: the “natural” greenhouse effect and the “man­made” greenhouse effect.The “man­made” greenhouse effect has now become 5.a big problem.There is strong and comprehensive evidence 6.that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide.In fact，news reports are 7.frequently(frequent) broadcast about extreme rainstorms and heatwaves 8.causing(cause) deaths and economic losses.Continued greenhouse gas emissions will result in further warming and long­lasting changes to the global climate.This requires the attention of people all over the world.We as individuals can reduce our “carbon footprint” by 9.restricting(restrict) the amount of carbon dioxide our lifestyles produce.It is our responsibility 10.to seize(seize) every opportunity to educate everyone about global warming.