Unit 6 Earth firstSection Section A Starting out & Understanding ideas课件 外研版必修二.pptx(课件中不含音视频素材)

1、-1-Unit 6 Earth first外研版高中英语必修二Section A Starting out&Understanding ideas晨读晚诵Are Shark Nets Necessary?为了防止鲨鱼对人类的攻击,一直以来澳大利亚的海岸线都设置防鲨网,但是研究发现该做法弊大于利。Shark nets in place across Australia,specifically in New South Wales(NSW)and Queensland,to protect beachgoers should be dropped as they have caused more

2、 harm than good.晨读晚诵The measureswere carried out by some governments,including nets and traditional drum lines,and provided beachgoers with a false sense of safety.The study found the effectiveness of nets was difficult to evaluate,while the significant damage they cause to other marine wildlife was

3、 clear.Researchers desire for non-deadly shark control measures such as eco barriers,which physically separateswimmers from sharks,sonar(声呐)technology,and various shark-spotting techniques.Researchers said while the risk of coming across a shark was rare,any shark-related deaths and injuries caught

4、huge public and media attention.晨读晚诵One of the arguments in support of using shark nets is that just one shark-related death has been reported in Queensland since the 1960s.Similarly,since the 1930s,NSW has had only one shark-related death.But there have been at least 13 people killed by sharks at b

5、eaches without nets on the NSW north coast over the past two years.The Humane Society Internationals head of campaigns,Nicola Beynon,said the government needed to move away from outdated methods.“Deadly shark nets and drum lines are more than 50 years behind scientific and animal welfare standards f

6、or dealing with marine wildlife,”said Beynon.The NSW Greens marine spokesman,Justin Field,said,“People are 100 times more likely to drown at the beach than to be killed by a shark in Australia.Therefore,millions of dollars going into the shark net program should be directed to observation towers for

7、 our lifeguards and improving the beach devices.”晨读晚诵词海拾贝词海拾贝measure n.措施evaluate vt.评估separate vt.分开similarly adv.相似地method n.方法observation n.观察晨读晚诵典句欣赏典句欣赏The study found the effectiveness of nets was difficult to evaluate,while the significant damage they cause to other marine wildlife was clear.

8、译文:研究发现,防鲨网的有效性很难评估,而它们对其他海洋野生动物造成的重大损害则是显而易见的。分析:本句总体上是一个并列句。The study found是第一个分句,while the significant damage.是第二个分句。在第一个分句中the effectiveness of nets was difficult to evaluate是宾语从句,在第二个分句中they cause to.是定语从句。晨读晚诵理解诱思理解诱思1.What do researchers focus on?答案:Friendly shark control ways.2.What do Nicol

9、a Beynon and Justin Field have in common?答案:No shark nets are to be used.课前篇自主预习.知识体系图解 sharkscaredivetargetfortunatelyextinctionattitude课前篇自主预习恐惧害怕把切断对有影响被覆盖相反;反之把看作从那天起错误地保护免受侵害提高的意识课前篇自主预习.释义匹配1.scareA.something that you are trying to achieve2.diveB.not existing3.targetC.the opinions and feelings

10、 that you usually have about something4.extinctionD.to make someone feel frightened5.attitudeE.to jump into deep water with your head and arms going in first答案:1.D2.E3.A4.B5.C课前篇自主预习.阅读导学根据pp.6263课文内容,选择正确答案1.What is the purpose of the first paragraph?A.To advertise a movie.B.To introduce the topic.

11、C.To show sharks are dangerous.D.To warn people not to swim in the sea.答案:B课前篇自主预习2.What can we infer from the second paragraph?A.The movie had a bad influence on the viewers.B.The viewers began to know the nature of sharks.C.Sharks were animals that ate humans.D.People began to care about sharks.3.

12、We know from the third paragraph that finning is.A.difficultB.cruelC.excitingD.easy答案:A答案:B课前篇自主预习4.What made Benchley believe humans was a danger to sharks?A.The movie Jaws.B.The shark fin soup.C.The attacks of sharks by mistake.D.The finning scene.答案:D课堂篇学习理解重点词汇重点句式随堂练习1.scared adj.惊恐的,恐惧的【课文原句】P

13、eople have always been scared of sharks,but Jaws made things worse.人们一直都恐惧鲨鱼,但大白鲨令事情变得更糟糕。【词汇精讲】句中的scared是形容词,意为“害怕的,恐惧的”。One thing I am sure of was that she was scared.有一点我能肯定,那就是她当时被吓到了。Im scared of telling her what really happened.我害怕告诉她所发生的事情。课堂篇学习理解重点词汇重点句式随堂练习【词汇拓展】Tom always keeps calm and ne

14、ver scares,when he meets whatever urgency.汤姆在任何紧急情况下都能保持镇静,从不会惊慌。Grace was getting scared of the wind and weather.格雷丝越来越害怕这种天气和风暴。课堂篇学习理解重点词汇重点句式随堂练习 课堂篇学习理解重点词汇重点句式随堂练习2.due to由于,因为【课文原句】This was not only due to fear of sharks,but also finning.Finning is a type of fishing where sharks are caught an

15、d their fins cut off.这不仅是因为害怕鲨鱼,而且也是因为生切鱼鳍。生切鱼鳍是一种捕捞方式:鲨鱼被捕获后,切掉它们的鳍。【词汇精讲】due to是固定搭配,引出原因,意为“由于,因为”。Mistakes due to carelessness may have serious consequences.由粗心大意造成的错误有可能带来严重的后果。The train had stopped due to a mechanical problem.火车因为机械故障停了下来。课堂篇学习理解重点词汇重点句式随堂练习【词汇拓展】The next flight is due in five

16、 minutes.下一趟飞机预计在五分钟后抵达。The wages due to him will be paid tomorrow.他应得的工资明天将会付给他。That money is due to me,but I havent got it yet.那笔钱是应付给我的,而我至今还未拿到。Look!The front part of the car is now totally out of shape due to the crash.看!因为撞车,这辆车的前部现在已经完全变形了。课堂篇学习理解重点词汇重点句式随堂练习【温馨提示】当due to表示“由于;因造成;应给予”时,其中的to

17、是介词,并且在句中常常作表语或状语;当due to意为“即将/预期做”时后接不定式。课堂篇学习理解重点词汇重点句式随堂练习课堂篇学习理解重点词汇重点句式随堂练习 课堂篇学习理解重点词汇重点句式随堂练习3.extinction n.灭绝,绝种【课文原句】Today,as we learn more about sharks,more people than ever want to protect them from extinction.今天,随着对鲨鱼了解得更多,越来越多的人都想保护它们免遭灭绝。【词汇精讲】extinction是名词,意为“灭绝,绝种”。The species was do

18、omed to extinction.这一物种注定要灭绝。Many species are in danger of extinction because of our destruction of their natural habitat.许多物种由于我们破坏了它们的自然环境,现在正面临灭绝的危险。课堂篇学习理解重点词汇重点句式随堂练习【词汇拓展】extinct adj.已经灭绝的Dinosaurs have been extinct for millions of years.恐龙已绝迹数百万年了。课堂篇学习理解重点词汇重点句式随堂练习 课堂篇学习理解重点词汇重点句式随堂练习4.atti

19、tude n.态度,看法【课文原句】Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.用文章中的单词和短语完成对鲨鱼态度变化的图表。【词汇精讲】句中的attitude是名词,意为“态度”,是可数名词。As soon as he found out I was a doctor his attitude changed.他一发现我是医生,他的态度就变了。Your attitude would be improved whe

20、n you fix your attention on good things.当你注重好的事情的时候你的看法会改善。课堂篇学习理解重点词汇重点句式随堂练习【词汇拓展】I am trying to have a positive attitude toward my job and my life.我正试图以一种积极的态度看待我的工作和人生。课堂篇学习理解重点词汇重点句式随堂练习 课堂篇学习理解重点词汇重点句式随堂练习This was not only due to fear of sharks,but also finning.Finning is a type of fishing whe

21、re sharks are caught and their fins cut off.这不仅是因为害怕鲨鱼,而且也是因为生切鱼鳍。生切鱼鳍是一种捕捞方式:鲨鱼被捕获后,切掉它们的鳍。【句式剖析】not only.but also.用于连接两个表示并列关系的成分,着重强调后者,其意为“不但而且”;其中的also有时可以省略。Light and bright colours make people not only happier but(also)more active.浅色和鲜艳的颜色不但使人看了更加高兴,也会使人更加活泼。Man has become master not only of

22、the sky but also of the space.人类不但征服了天空,而且征服了太空。课堂篇学习理解重点词汇重点句式随堂练习【句式拓展】(1)not only.but also.连接的两个成分作主语时,其谓语在人称和数上通常与邻近的主语保持一致。(2)not only.but also.连接两个句子,且not only位于句首时,not only后面的句子要用部分倒装。Not only I but also Tom and Mary are fond of watching television.不仅我,而且汤姆和玛丽都喜欢看电视。After the earthquake,not o

23、nly was there no electricity,but also there was no clean water.地震以后,不仅没有电,而且也没有干净的水。Not only does he have a first-class brain but also he is a hard-working man.他不仅有着头等聪明的大脑,而且很勤奋。课堂篇学习理解重点词汇重点句式随堂练习课堂篇学习理解重点词汇重点句式随堂练习 课堂篇学习理解重点词汇重点句式随堂练习.单句填空1.If there were anything to be(scare)of,you wouldnt have c

24、hosen this place!答案:scared2.(fortunate),I was chosen to participate in an exchange study program.答案:Fortunately3.An operation is beginning to try to save a species of crocodile from(extinct).答案:extinction4.What they saw in the film made them(frighten).答案:frightened5.The students stopped(talk)when th

25、e teacher came in.答案:talking课堂篇学习理解重点词汇重点句式随堂练习.语篇填空The opening scene from the 1975 film Jaws showed a woman 1.(attack)by a shark.The scene strengthened peoples long-held idea of the great white shark as a 2.(danger)animal.People who saw the film started to believe sharks ate humans and stopped 3.(s

26、wim)in the sea.Others began to kill sharks as many as they could.Some even killed the sharks and used their fins in shark fin soup.4.a result,the number of sharks in the world reduced greatly.being attackeddangerousswimmingAs课堂篇学习理解重点词汇重点句式随堂练习 Peter Benchley,5.was the author of the book the film Ja

27、ws 6.(base)on,was greatly affected by finning.In 1980,when Benchley was diving,he was shocked by 7.he saw.Sharks were being killed and the sea floor was covered with dead sharks.This caused a deep change in him.He came to see people as 8.danger to sharks.From that day on,he tried his best to protect

28、 sharks.Fortunately,not everyone who watched the film Jaws became afraid of sharkssome became interested in 9.(understand)them.Today,as we learn more about sharks,10.(many)people than ever want to protect them from extinction.whowas basedwhataunderstanding课堂篇学习理解重点词汇重点句式随堂练习.概要写作根据教材pp.6263的语篇内容写一篇6

29、0词左右的内容概要参考范文The scene that a woman is being attacked by a shark makes people further believe that the great white shark is a danger to people.(要点1)Therefore,people began killing sharks and finning,which greatly reduced the number of sharks around the world.(要点2)Affected by the scene of finning,the author of the book changed his attitude towards sharks and began to protect them.(要点3)Now more and more people begin to protect sharks from extinction.(要点4)