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1、第1页/共58页第2页/共58页To learn the passage To help students to understand how animals use their own unique senses over the long process of evolution.To prepare a TV show about how the animal uses its senses.第3页/共58页1.What do you think is the most dangerous animals in the ocean?2.What do you know about sha
2、rks?3.What will you do if a shark attacks you?第4页/共58页There are nearly 400 species of sharks,which are divided into 8 orders(目目)and 30 families(科科).There are lots of differences in sharks.第5页/共58页Basking sharkShark SpeciesWhale sharkGreat whiteBlue sharkTiger shark第6页/共58页Shark attacksRead the artic
3、le about shark attacks on Page 18 to know more about sharks.第7页/共58页1.How many different types of sharks are there in the ocean?2.Do all of them attack humans?Nearly 400.No.Only about 30 types are known to have attacked human beings.第8页/共58页3.What is the most dangerous shark?4.What sharks are also r
4、ather dangerous?The great white shark.Two other sharks are also rather dangerous:the tiger shark and the bull shark.第9页/共58页Read the texts carefully and decide whether the statements are true(T)or false(F).1.The tiger shark and the bull shark are thought to be not dangerous at all.()2.Sharks seldom
5、attack people who are in a large group.()3.An increase in water sports has led to an increase in shark attacks.()FTT第10页/共58页The three types of shark attacks:In the main type,the shark attacks you because it mistakes you for a fish,but when it tastes human flesh it decides to give up and swims away.
6、第11页/共58页In the second type,the shark pushes you with its noses to find out if you are fit to be eaten and then bites you if it thinks you are.In the third type,the shark waits for you to swim by and attacks you suddenly.第12页/共58页To reduce the risk of a shark attack:Do not swim in the dark.Do not go
7、 swimming in the ocean if you have a fresh wound.Do not wear bright clothing or jewellery.Stay in groups.第13页/共58页Advices to follow if a shark attacks you Keep calm.Do not panic.Hit the shark on the nose with your fist.Stick your finger in the sharks eye.第14页/共58页Work in pairs or groups.Fill in each
8、 blank with no more than one word according to the text(P18).Shark attacksParagraph outlineSupporting detailsIntroductionThere are nearly 400 types of sharks in the world.There are three well-known types of sharks that(1)_ humans.attack第15页/共58页Paragraph outlineSupporting detailsThree types of shark
9、 attacksThe shark mistakes you for a fish and then swims away after(2)_ your flesh.The shark pushes you with its(3)_ and then bites you if it thinks you are its food.The shark stays until you to swim by and then attacks you all of a(n)(4)_.tastingnosesudden第16页/共58页Paragraph outlineSupporting detail
10、sSuggestionsHow to avoid shark attacksDo not swim in the dark.Do not swim with fresh(5)_.Do not wear bright clothing or jewellery.Do not swim(6)_.What to do when attackedKeep calm.Hit the shark on the nose with your fist.Stick your finger in the sharks(7)_.woundsaloneeye第17页/共58页1.After rolling up t
11、he small piece of paper,the officer attached it to a pigeons leg.()2.Pigeons are known for flying home from more than two thousand kilometres away.()FFRead text on page 19.Decide whether the statements are true(T)or false(F).第18页/共58页Work in pairs or groups.Fill in each blank with no more than one w
12、ord according to the text(P19).第19页/共58页The wonderful world of pigeonsParagraph outlineSupporting detailsThe uses of pigeons(1)_ people used pigeons to carry the news or the mail.Armies used pigeons to carry messages to and from the front lines during wars.Ancient第20页/共58页Paragraph outlineSupporting
13、 details(2)_ for being usedPigeons have a wonderful sense of direction and can fly home from far away.How they find their wayPigeons may have a compass inside them to help them find(3)_.Pigeons also use their sight and sense of smell to help them find their way home.northReason第21页/共58页Read the seco
14、nd article The wonderful world of pigeons and answer the questions.1.What does the article begin with?It begins with a story.2.What is the story about?It is about what an officer did when his army was attacked by the enemy.第22页/共58页3.Why does the writer begin with this story in his article?To arouse
15、 readers interest./To introduce a wonderful animal pigeons.第23页/共58页4.How do pigeons find their way?Pigeons appear to have a compass inside them that tells them which way is north,they also appear to use their sight and even their sense of smell to tell them which way they should go.第24页/共58页Read th
16、e last two paragraphs again and find the main idea for each paragraph.Paragraph 5:Pigeons have the sense of direction,so their greatest use is to carry the news,the mail or messages.In wars,they were able to save the lives and help win.第25页/共58页Paragraph 6:The reason why pigeons never get lost is th
17、at not only they have a compass inside but they use their senses of sight and smell as well.第26页/共58页What other animals whose unique senses enable them to survive their environments?第27页/共58页Dogs and rabbits have highly developed senses of smell and touch.A spiders unique sense is sight.Butterflies
18、and bees have taste receptors on their feet.第28页/共58页Lions have very good noses,which are sensitive to smell.Cats have a well developed sense of touch.Mice and elephants have good hearing.Eagles eyesight is four times as sharp as that of a person with perfect vision.第29页/共58页1.Contrary to what many
19、people might assume,evidence shows that sharks seldom attack humans.和许多人可能会认为的正好相反，证据显示鲨鱼极少攻击人类。和许多人可能会认为的正好相反，证据显示鲨鱼极少攻击人类。contrary adj.相反的相反的 n.n.相反的事实或情况相反的事实或情况第30页/共58页contrary to sth.与之相异的，相反的与之相异的，相反的e.g._ popular belief,many cats dislike milk.与普遍的看法相反，许多猫并不与普遍的看法相反，许多猫并不 喜欢牛奶。喜欢牛奶。Contrary t
20、o第31页/共58页In the end the contrary was proved true:he was innocent and she was guilty.最后证明事实正好相反:他是无辜的，而她则有罪。第32页/共58页2.Dont be frightened by sharks as you are 30 times more likely to be hit by lightning than be attacked by a shark.不要害怕鲨鱼：你被闪电击中的几率不要害怕鲨鱼：你被闪电击中的几率 要比受到鲨鱼袭击的几率大三十倍。要比受到鲨鱼袭击的几率大三十倍。like
21、ly既可作形容词，也可作副词。既可作形容词，也可作副词。作形容词时，意为作形容词时，意为“可能的，预料的，可能的，预料的，有希望的有希望的”，可作定语，也可作表语。作，可作定语，也可作表语。作 表语时，常用于以下结构：表语时，常用于以下结构：be likely to do sth.；be likely+that从句。从句。第33页/共58页e.g._ of the fire was a cigarette.最有可能引起这场火灾的原因是一根香烟。Do remind me because _ it.一定要提醒我，因为我可能忘记它。_ well be in Spain this time next
22、year.明年的这个时候我们很可能会在西班牙。The most likely causeIm likely to forgetIts quite likely that第34页/共58页作副词时，意为“很可能”。e.g.We _later.我们很可能晚些时候会见到他。will most likely see him第35页/共58页倍数的表达法有三种：倍数的表达法有三种：(1)A+谓语谓语+倍数词倍数词+形容词或副词的比形容词或副词的比 较级较级+than+B (2)A+谓语谓语+倍数词倍数词+as+形容词或副词形容词或副词 的原级（的原级（+名词）名词）+as+B(3)A+谓语谓语+倍数词倍
23、数词+度量名词度量名词+of+B第36页/共58页3.Unlike human,they never get lost and can always find their way home.和人类不同，它们从不迷路，总是能 找到归家的路。unlike prep.不像，与不同 e.g._ most systems,this one is very easy to install.本系统与多数系统不同，极易安装。Unlike第37页/共58页1.In the main type,the shark attacks you because it mistakes you for a fish,but
24、 when it tastes human flesh it decides to give up and swims away.第38页/共58页本句是_，连词but连接两个复合句。在第一个复合句中，because引导一个_从句；第二个复合句中，when引导一个_从句。句中mistake for 指“把错当为”并列主从复合句原因状语时间状语第39页/共58页e.g.You must be mistaking me for my younger sister.你一定是把我错当成我妹妹了。动词taste在句子作及物动词，指“辨别出(食品、饮料等味道)e.g.She could taste tom
25、ato in the soup.她能够辨别出汤中番茄的味道。第40页/共58页2.In the second type,the shark pushes you with its noses to find out if you are fit to be eaten and then bites you if it thinks you are.句中第一个if 引导的是_，作find out的宾语；第二个 if 引导的是 _，其完整形式为：if it thinks you are fit to be eaten.宾语从句条件状语从句第41页/共58页3.They are all going
26、to be killed unless they get help.本句是一个_。主句为They are all going to be killed。unless they get help是一 个_。主从复合句条件状语从句第42页/共58页4.Though it may seem hard to believe,the bird the officer uses is the same bird often seen in public parksthe pigeon.第43页/共58页句中的though引导_，其中it 代指_的内容。主句中的the officer uses 是_，修饰主
27、语the bird，而often seen in public parks是过去分词短语，作the same bird的_。让步状语从句主句定语从句后置定语第44页/共58页5.Pigeons appear to have a compass inside them that tells them which way is north.句中that 引导_，修饰 _。在该句中，tell后接_，直接宾语 是which引导的宾语从句。定语从句compass双宾语第45页/共58页这里的appear 是系动词，相当于seem，意思是“_”。e.g.Mary appears to be hesitat
28、ing about this matter.在这件事情上，玛丽似乎还在犹豫。好像，似乎第46页/共58页Producing a TV show about how the animal uses its senses.Introducing the project第47页/共58页Planning Get into groups(6-8).Decide which animal to focus on.Clear assignments.You can look the questions on Page 19 and assign task to each group member.第48页
29、/共58页 Search information about the animal from books,Internet or by visiting a zoo,watching an animal documentary.Focus your research on how the animal you choose uses its senses.Preparing第49页/共58页Producing Decide what information will be used in your TV show.Pictures should be presented in an easy-
30、to-see way because TV is very visual.Each member must work on a different part of the show,keeping in mind the overall design.第50页/共58页 Every member has to proofread the writing at least once,correct mistakes if there are any,and add any new ideas they can think of.第51页/共58页Presenting Present your s
31、how to the class.Answer any questions other group might ask.第52页/共58页I.Complete the following sentences according to the initials.1.I hadnt seen Julie for 20 years,but I r_ her immediately when I came across her in the street yesterday.2.For smokers,it is good news that giving up smoking r_ the risk
32、 of heart disease.3.L_ is the very bright flashes of light in the sky that happen during thunderstorms.recognizedreducesLightning第53页/共58页4.When the theater caught fire suddenly last night,Rock p_ and ran as fast as he could to a safe place.5.Anna likes wearing l_ clothing,which gives her greater fr
33、eedom of movement.6.A t _ is a flat shape made up of three straight lines of equal or differing lengths.panickedloosetriangle第54页/共58页II.Fill in the blanks with the proper forms of the words given below.Use each word once only.disable,hope,puzzle,attract,like1.The more you know about why you failed,
34、the less _ you are to make the same mistake again.2.People with _ are a special social group,which needs to be cared for by the whole society.likelydisabilities第55页/共58页disable,hope,puzzle,attract,like3.We really want tickets for the concert but its not looking very _.4.When I asked him why he came here,he looked _ so I repeated the question.5.When travelling in London,you can find that Buckingham Palace is a tourist _.hopefulpuzzledattraction第56页/共58页Review words and phrases in this unit.第57页/共58页感谢您的观看！第58页/共58页