外研版（2019）必修第二册Unit 6 Earth First Understanding ideas 知识点课件(共38张PPT)

(共38张PPT)
Sharks: Dangerous or Endangered
Language points
Complete the chart图表 showing how attitudes towards sharks have changed with words and expressions from the passage.
Listen and check
as dangerous animals
sharks were bad animals that ate humans
swimming in the sea
fish for sharks
fear of sharks and finning
was wrong about sharks' behaviour
to protect
sharks do not see people as food
understanding sharks
protect sharks from extinction
Part1：Find these phrases
1.at night
2.suddenly=all of a sudden
3.cry in fear
4.the opening scene
5.tell a story of
6.be a great success
7.attract huge audiences
8.win many awards
9.strengthen people’s long-held idea
10.be afraid/frightened of
1.在夜晚
2.突然
3.惊声尖叫
4.开场画面
5.讲述了一个...的故事
6.大获成功
7.吸引大量观众
8.赢得许多奖项
9.加深了人们的固有印象
10.害怕
长难句分析
Part1：Find these phrases
1.make things worse
2.at that time
3.the number of
4.fall/decrease/decline/drop/descend/
reduce/go down quickly
5.not only..but also
6.fear of sharks
7.a type/kind/sort of
8.cut off
9.be thrown back into the sea
1.使情况变的更糟
2.在那时
3....的数量
4.快速下降
5.不仅..而且..
6.害怕鲨鱼
7.一种
8.切割，隔绝
9.被扔回海里
长难句分析
Find these phrases
1.die slowly and painfully
2.be used in
3.millions of
4.have an unexpected effect on/upon
5.be based on
6.came across an awful sight
7.be covered with
8.cause a deep change
9.see/view/take/consider/treat/regard...as..
10.rather than=instead of
1.缓慢而痛苦的死去
2.被用于
3.数百万的
4.对..有意想不到的影响
5.基于
6.看到了可怕的一幕
7.遍布，覆盖
8.引起深刻转变
9.把..看做
10.而不是
Find these phrases
1.the other way around
2.from that day on
3.by mistake
4.every/each year
5.become interested in
6.protect them from extinction
7.advocate the protection of sharks
8.raise awareness of...
9.inform sb about/of sth
10.recommend sth to sb
1.相反
2.从那天起
3.错误地
4.每年
5.对..感兴趣
6.保护他们免遭灭绝
7.提倡保护鲨鱼
8.唤醒....意识
9.告知某人某事
10.推荐某物给某人
Find these phrases
Part2：Analyze long and difficult sentences
1. We see a woman swimming at night in a dark sea. Suddenly, she is pulled underwater到水下. She surfaces， cries大叫 in fear, then disappears forever.
1.see sb doing sth看见某人正在做某事 doing做宾补
2.be pulled被动语态
3.surface n/v 表面/浮出水面
4.fear n/v 害怕，恐惧 fearful adj.害怕的，担心的
5.disappear v.消失 disappearance n.消失 disappeared adj.消失的
翻译：
我们看到一个女人夜晚在漆黑的海水里游泳。突然，她被什么东西拖到了水下，她挣扎着露出水面，惊声尖叫，然后就彻底消失了。
2. This is the opening scene from the 1975 film Jaws, showing a shark attack．It tells the story of a great white shark that attacks and kills swimmers.
1.showing a shark attack 现在分词doing作伴随状语
2.attack n/v 袭击
3.that引导的定语从句，指代先行词shark，指物，做主语
翻译：
这是1975年上映的电影{大白鲨}的开场画面，呈现了鲨鱼攻击人类的一幕。电影讲述了一只大白鲨袭击并杀死游泳者的故事。
3. Jaws was a great success, attracting huge audiences and winning many awards奖项.It strengthened people's long-held idea of the great white shark as a dangerous animal.
1.success n.成功 successful adj.成功的 succeed v.成功
2.attracting huge audiences and winning... 现在分词做伴随状语
3.attract v.吸引 attraction n.吸引 attractive adj.吸引人的
4.strengthen v.加强，加深 strength n.力量，力气 strong adj.强壮的
翻译：
电影大获成功，吸引了大量观众，并赢得了众多奖项。这部电影也加深了人们对大白鲨的固有印象：这是一种危险的动物。
Some verbs with similar structure:
length( n.)
height( n.)
broad( adj.)
deep( adj.)
sharp ( adj.)
strengthen（加强v.）=strength（力量n.）+-en动词后缀
使...延长
使...变高
使...变宽
使...加深
+-en
+-en
+-en
+-en
+-en
=lengthen
=heighten
= broaden
= deepen
=sharpen
It is important to sharpen students' communication skills.（2019年全国卷2）
提高
使...变得锋利，提高
en- +danger = endanger 使处于险境
en- +rich = enrich 丰富
en- +sure = ensure 确保
en- +able = enable 使能够
en-动词前缀
1. Their cheery song brightens my hard day.
2.Travel will enrich our mind and our life.
3.Ensure that each child gets financial support.
照亮,温暖
丰富
确保
4. People have always been scared of sharks, but Jaws made things worse．It made people frightened of sharks, especially of the great white shark.
1.have/has done现在完成时
2.scare n/v惊吓，使恐惧 scared adj.恐惧的
3.bad--worse--worst
4.especially=in particular尤其是，特别是
翻译：
人类本就害怕鲨鱼，而电影{大白鲨}加深了这种恶劣印象。它让人们对鲨鱼，特别是大白鲨，心生恐惧。
4. People have always been scared of sharks, but Jaws made things worse．It made people frightened of sharks, especially of the great white shark.
1.make+宾语+宾补 过去分词frightened做宾补
2.frighten v.使...害怕 fright n.惊吓
frightened adj.感到害怕的 =scared=afraid=fearful
frightening adj.令人害怕的，恐怖的=horrible=awful
翻译：
人类本就害怕鲨鱼，而电影{大白鲨}加深了这种恶劣印象。它让人们对鲨鱼，特别是大白鲨，心生恐惧。
5. Many people who saw the film started to believe that sharks were bad animals that ate humans.Some people stopped swimming in the sea, afraid of the horrible可怕的 creature生物 from the film.
1.who引导的定语从句，指代先行词people，做主语
2.that引导的宾语从句，不作句子成分
3.that引导的定语从句，指代先行词animals，作主语
4.afraid of... 形容词短语作原因状语
翻译：
许多看过电影的人开始相信，鲨鱼是吃人的有害动物。由于害怕遇上电影里的这种可怕生物，有些人再也不去海里游泳了。
5. Many people who saw the film started to believe that sharks were bad animals that ate humans.Some people stopped swimming in the sea, afraid of the horrible creature from the film.
1.see--saw--seen看见
2.believe v.相信=trust belief n.相信，信念
3.are--were--been 是
4.eat--ate--eaten 吃
5.stop doing sth停止正在做的事情
stop to do sth 停下来做另一件事
6. Other people started fishing for sharks, killing as many as they could．At that time, nobody cared if sharks were killed, or how many were killed. People just wanted them killed.
1.killing as many as...，现在分词doing做伴随状语
2.if引导的宾语从句，不作句子成分，表是否
3.how引导的宾语从句，作程度状语，表多么
4.want them killed，过去分词killed作them的宾语补足语
翻译：
其他人则开始无所顾忌地捕杀鲨鱼。那时，没人在意鲨鱼是否被杀，也没人在意杀了多少。人们认为鲨鱼死有余辜。
6. Other people started fishing for sharks, killing as many as they could．At that time, nobody cared if sharks were killed, or how many were killed. People just wanted them killed.
1.start fishing，动名词doing作宾语
2.fish n/v 鱼，捕鱼，钓鱼 fishing n.捕鱼，钓鱼 fisher n.渔民
3.care n/v在乎，关心 careful adj.小心的，仔细的
careless adj.粗心的 carelessness n.粗心
4.want them killed，过去分词killed作them的宾语补足语
5.were killed被动语态 被杀
7.After 1975，the number of large sharks around America fell quickly, and soon fell around the world.This was not only due to fear of sharks, but also finning.
1.the number of ... ...的数量 a number of 大量
2.around America 介词短语作后置定语，修饰sharks
3.around the world 介词短语作地点状语
翻译：
1975年之后，在美国附近海域里，大型鲨鱼的数量迅速下降，这一趋势很快蔓延到全球。这不仅仅因为人类对鲨鱼的恐惧，还因为采割鱼鳍。
7.After 1975，the number of large sharks around America fell quickly, and soon fell around the world.This was not only due to fear of sharks, but also finning.
1.fall--fell--fallen 下降，摔倒
2.due to由于=because of=as a result of=thanks to
=on account of=owing to
3.fin n/v鱼鳍，切割鱼鳍
8. Finning is a type of fishing where sharks are caught and their fins cut off. The sharks are thrown back into the sea where they die slowly and painfully.
1.where引导的定语从句，指代先行词fishing捕鱼活动，做地点状语
2.are caught被动语态 catch--caught--caught抓住，赶上
3.are thrown被动语态 throw--threw--thrown扔
4.where引导的定语从句,指代先行词sea，做地点状语
翻译：
采割鱼鳍是一种渔猎活动，人们捕到鲨鱼后将鱼鳍割下，鲨鱼被扔回海中缓慢而痛苦地死去。
8. Finning is a type of fishing where sharks are caught and their fins cut off. The sharks are thrown back into the sea where they die slowly and painfully.
1.cut--cut--cut切割
2.die v.死亡 death n.死亡 dead adj.死的
dying动名词，现在分词
3.pain n/v疼痛，使痛苦 painful adj.痛苦的
pinfully adv.痛苦地
ache n/v疼痛 aching adj.疼痛的
9. The fins are used in shark fin soup汤. Finning采割鱼鳍 kills杀死 millions of sharks a year.
翻译：
割下的鱼鳍被用来做鱼刺汤。每年有数百万的鲨鱼因此丧命。
1.are used被动语态 被用于
sth be used to do sth某物被用来做某事
sb be/get used to doing 某人习惯了做某事
sb used to do sth 某人过去常常做某事
10. Finning would have an unexpected effect upon Peter Benchley, the man who wrote the book that the film Jaws was based on.
1. expect v.期待，预期 expectation n.期望
expected adj.预料的 unexpected adj.出乎意料的
2.effect n.影响=influence=impact
affect v.影响=influence=impact
3.write--wrote--written书写
翻译：
采割鱼鳍活动对{大白鲨}电影的原著作者彼得产生了出乎意料的影响。
10. Finning would have an unexpected effect upon Peter Benchley, the man who wrote the book that the film Jaws was based on.
1. who引导的定语从句，指代先行词the man，作主语
2.that引导的定语从句，指代先行词the book，作on后的宾语，可以省略
3.am/is--was--been是
11. In 1980, Benchley was diving when he came across an awful sight景象.It was an area区域 where fishermen渔民 were finning, and the sea floor海底 was covered with dead sharks.
1. be doing sth when..正在做某时，这时....
be about to do sth when...正要做某事，这时...
had done sth when 刚做了，某事这时...
翻译：
1980年，本奇力在潜水的时候看到了可怕的一幕：渔民们正在这片海域采割鲨鱼的鱼鳍，海底遍布着鲨鱼的尸体。
11. In 1980, Benchley was diving when he came across an awful可怕的 sight景象.It was an area区域 where fishermen渔民 were finning, and the sea floor海底 was covered with dead sharks.
1. come--came--come来
2.where引导的定语从句，指代先行词area，做地点状语
3.was/were doing过去进行时
4.cover n/v封面，覆盖，占...，掩护
cover an area of.. 占地.....
Cover me. 掩护我
12.Benchley saw sharks being killed and this caused引起 a deep change in him. He came to see people as a danger to sharks, rather than the other way round.
1. see...being done看见...正在被... being done现在分词的被动式（表被动和进行）作宾补
2.danger n.危险=risk dangerous adj.危险的=risky
endanger v.危及 endangered adj.濒危的
翻译：
本奇力亲眼目睹鲨鱼被杀，这引起了他内心的深刻转变，他意识到人类才是鲨鱼的威胁，而鲨鱼并非人类的敌人。
13. From that day on, he fought to protect sharks.He admitted that his book was wrong about sharks' behaviour.
1. fight--fought--fought战斗，打架
2.to protect sharks 不定式to do做目的状语
3.admit v.承认，允许进入 be admitted to 被...录取
admission n.承认，录取
4.hehave v.表现，守规矩 behaviour n.行为
翻译：
从那天起，他开始为保护鲨鱼而努力。他承认自己书中对鲨鱼的行为描述是不正确的。
14. I “Sharks don't target humans，” he said. Experts have proved证明 that sharks do not see people as food, and they attack us by mistake．Only around six people are killed by sharks every year.
翻译：
他说，鲨鱼并不以人类为攻击目标。专家们也已经证明鲨鱼不会将人类视为食物，他们对人类的攻击是无意的。每年被鲨鱼攻击致死的人数在6人左右。
14. I “Sharks don't target humans，” he said. Experts have proved证明 that sharks do not see people as food, and they attack us by mistake．Only around大约 six people are killed by sharks every year.
1. say--said--said说
2.prove v.证明，结果是 proof n.证据
3.mistake n/v 错误，误解，误认为
mistake--mistook--mistaken误认为
4.被动语态/过去分词+by
15. Fortunately，not everyone who watched the film Jaws became afraid of sharks — some became interested in understanding them.
翻译：
幸运的是，并不是每个看过这部电影的人都变得害怕鲨鱼，有些人变得有兴趣去了解它们
1. who引导的定语从句，指代先行词everyone，做主语
2.become--became--become变得，成为
3. interest n/v 兴趣，利益，使...有兴趣
interested adj.感兴趣的 interesting adj.有趣的
4.understand--understood--understood 理解
5.介词在左ing，介词在右done
16. Today, as we learn more about sharks, more people than ever want to protect them from extinction．
翻译：
如今，随着我们对鲨鱼了解的加深，越来越多的人愿意去保护它们免遭灭绝。
16. Today, as we learn more about sharks, more people than ever want to protect them from extinction．
1. as conj.随着 引导时间状语从句
2.比较级+than
比较级+and+比较级 越来越...
the+比较级，the+比较级 越....就越.....
3. protect v.保护=conserve=preserve
protection n.保护=conservation=preservation
4.extinct adj.灭绝的=die out
extinction n.灭绝