1、Unit 1,shark,Unit 1 ProjectProducing a TV show,shark,pigeon,1.How many different types of sharks are there in the ocean?2.What is the most dangerous shark?3.Why is the number of shark attacks increasing?,1.How many different types of sharks are there in the ocean?2.What is the most dangerous shark?3
2、.Why is the number of shark attacks increasing?,Nearly 400.,The great white shark.,Because water sports are becoming more popular.,Read Text 1 carefully and finish the form.,Detail reading,The Best Picture,The Best Short Film(Animated)最佳动画短片,1.What happened to the soldiers that night?2.Why were pige
3、ons used in ancient time to carry the news or even the mail?3.How do pigeons find their way?,1.What happened to the soldiers that night?They were being attacked.2.Why were pigeons used in ancient times to carry the news or even the mail?Because pigeons have a good sense of direction and can find the
4、ir way over long distances.,3.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.,Read again and fill in the blanks.,It was a quiet night
5、.The soldiers were asleep while a guard watched for the enemy.Suddenly,with a flash and the sounds of guns,hundreds of enemy soldiers rushed(1)_ them.What should they do?An officer quickly wrote a short message,(2)_ up the paper and attached it to a pigeons leg,then set the bird(3)_.,towards,rolled,
6、loose,Though it may seem hard to believe,pigeons have a wonderful sense of(4)_ and can find their way home over long(5)_.Why？Because pigeons appear to have a(6)_ inside them that tells them which way is north.In addition,they also appear to use their(7)_ and even their sense of(8)_ to tell them whic
7、h way they should go.(9)_humans,they never(10)_ lost.,direction,distances,compass,sight,smell,Unlike,get,Contrary to what many people might assume,evidence shows that sharks seldom attack humans.(L11-13)与很多人想法相反，证据表明鲨鱼很少攻击人类。,Language points,1.contrary 1)adj.相反的(常与介词to连用）2)n.相反的事实或情况on the contrary
8、恰恰相反 Contrary to what I thought,she proved to be successful.-You must be tired after four hours learning.-No.On the contrary,I feel energetic.,Practice,事实上，他的观点和我的相反。In fact,his view _ mine.2.他一点儿都不恼火，相反，他很高兴能被别人理解。He wasnt annoyed at all._,he was glad to be able to make himself understood.,is contr
9、ary to,On the contrary,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 swim away.In the second type,the shark pushes you with its nose to find out if you are fit to be eaten,and then bites you if it thinks you are.In
10、the third type,the shark waits for you to swim by,and then attacks you suddenly.The last two types of attack more often result in the death of humans.,To reduce the risk of a shark attack,you should follow these suggestions.,Do not swim in the dark.Sharks can still see you but you cannot see them.Do
11、 not go swimming in the ocean if you have a fresh wound.Sharks can smell blood over a long distance.Do not wear bright clothing or jewellery,because sharks are attracted to colours and bright objects.Stay in groups,as sharks usually avoid large numbers of people.,2.attract vt.吸引，使喜爱；引起的好感（或爱慕）He was
12、 attracted by her smile.The TV show I am a singer has attracted a lot of attention.attractive 吸引人的；漂亮的，性感的,Recently,shark attacks have been increasing as water sports are becoming more popular.If a shark attacks you,try some of the following tips to help you.Keep calm.Do not panic.Hit the shark on t
13、he nose with your fist.Stick your finger in the sharks eye.,Dont be frightened by sharks:you are 30 times more likely to be hit by lightning than be attacked by a shark.,3.倍数的表达法有三种：A+谓语+倍数词+adj./adv.的比较级+than+B The box is five times bigger than that one.A+谓语+倍数词+as+adj./adv.的原级+as+BAsia is about fo
14、ur times as large as Europe.A+谓语+倍数+the+度量名词+of+B(size/length/width/height/weight/number/amount等）The earth is about 49 times the size of the moon.【翻译】这根绳子长度是那根绳子的三倍。,1.Its said that the power plant is now _ large as what it was.A.twice as B.as twice C.twice much D.much twice,2.The new stadium being
15、built for the next Asian Games will be _ the present one.A.as three times big as B.three times as big as C.as big as three times D.as big three times as,4.likely adj.很可能的,1）be likely to do sth.Look at the sky.Its likely to rain.2)It is likely+that 从句 Another traffic jam!Its likely that well be late
16、again.,It is night.All is quiet.The soldiers are asleep while a guard watches for the enemy.There is a flash,and the sound of guns!They are being attacked!,万籁俱寂的夜晚。除了一名哨兵在站岗放哨，所有士兵都在梦乡。突然一道闪光，枪声四起！他们遭到攻击了。,They are all going to be killed unless they get help.What should they do?An officer writes a s
17、hort message quickly on a small piece of paper:Being attacked!Hurry!He rolls up the paper and puts it into a small case,and then reaches into a cage and gets a bird.Attaching the message to its leg,he sets the bird loose.It immediately flies into the air and disappears in the dark.Will the bird arri
18、ve in time?Will they be saved?,Though it may seem hard to believe,the bird the officer uses is the same bird often seen in public parks-the pigeon.Pigeons have a wonderful sense of direction and can find their way home over long distances.Indeed,pigeons have been known to fly home from as far away a
19、s 1,800 kilometres.That is why pigeons have been used since ancient times to carry the news or even the mail.,However,it was in war that they found their greatest use.During both World War I and II,pigeons were employed by armies to carry messages to and from the front lines,saving the lives of many
20、 soldiers and even helping with some important victories.,5.However,it was in war that they found their greatest use.,强调句型：It is/was+被强调部分+that/who+其他部分It was my mother who made the decision.It was in 1906 that Yali was founded.【练习】It was the culture,rather than the language,_ made it hard for him t
21、o adapt to the new environment abroad.A.where B.why C.that D.what,5.However,it was in war that they found their greatest use.（L16),10 Amazing facts about pigeons,Pigeons are the only bird in the world that do not have to lift their head to swallow water.Pigeons pair and mate for life,unless separate
22、d.A full grown pigeon has about 10,000 feathers.,4.The pigeon can beat its wings up to 10 times per second,while maintaining a heart rate of 600 beats per minute up to 16 hours without rest.5.Pigeons are one of the most intelligent bird,they have capability to self recognize in the mirror.,10 Amazin
23、g facts about pigeons,6.Pigeons have built in magnetic compass.They also use Suns positions to reach the destination.7.Pigeons have a visual memory that can store at least 300 objects or images indefinitely.,10 Amazing facts about pigeons,8.During breeding season,when there are more babies on the fl
24、oor,all parents will feed all babies,even if they are not their own.9.There are more than A MILLION fanciers around the world that breed pigeons.,10 Amazing facts about pigeons,10.Pigeons achieved 98%success rate in the missions flown in World War II,despite enemy fire,and often with mortal injuries
25、 to themselves.,10 Amazing facts about pigeons,During both World War I and II,pigeons were employed by armies to carry messages to and from the front lines,saving the lives of many soldiers and even helping with some important victories.(L16-19),6.employ vt.使用；雇佣,1)employ sb.as雇某人担任2)employ sb.to do
26、 sth.雇某人做某事The school employed her as an English teacher.=The school employed her to teach English.employee n.受雇者 employer n.雇主 employment n.就业；工作 unemployment n.失业；失业人数,How do pigeons find their way?Pigeons appear to have a compass inside them that tells them which way is north.How this compass wor
27、ks remains a mystery.Of course,since a compass alone is not enough to find ones way,they also appear to use their sight and even their sense of smell to tell them which way they should go.Unlike humans,they never get lost and can always find their way home.,7.unlike prep.不像，与不同e.g.Unlike me,my grandfather likes to get up early.dislike vt.不喜欢,Do Parts part A,B and C on page 96 in Workbook.Review words and phrases in this unit.,Homework,
