人教选修九Unit-2-Warming-up-and-Reading课堂课件.pptx（纯ppt,可能不含音视频素材）

1、Sailing the oceansUnit 2Period 1 Warming up&ReadingQuestion:How many oceans are there in the world?Pacific OceanAtlantic OceanIndian OceanArctic Ocean1.What is a navigator?2.What is the difference between a navigator and an explorer?A navigator explores new routes across the sea.A navigator explores

2、 the sea;an explorer discovers new places on land.Navigator seanautical instrumentsfind new islands or continentsNavigator is somebody who finds the position and plots the course of a ship using maps and instruments.Explorerlanduse of compass and landmarksfind new places within an already identified

3、 island or continentExplorer is somebody who travels into or through a place in order to learn about it.Very often navigators are also explorers.3.Look at these famous people.Are they navigators or explorers?What do you know about them?Zheng He Zheng He,the most famous Chinese navigator,lived from 1

4、371 to 1433 and made seven voyages around the South China Sea,visiting more than thirty countries.The people there gave him a warm welcome.And he not only spread Chinese culture,but also developed many trade links with the other countries.Marco Polo was the only person to provide information about C

5、hina to the outside world.His journey around Asia lasted 24 years.He reached further than any of his predecessors,travelling beyond Mongolia and into China.Finally he wrote his adventures down and his book was published and became a best-seller.James Cook 1728年出生在年出生在英国英国北部的一个村庄。北部的一个村庄。10多岁时他第一次随船出

6、海。他于多岁时他第一次随船出海。他于1775年加入皇家海军，此后成为了年加入皇家海军，此后成为了一名航海和制图专家。一名航海和制图专家。1768年，库年，库克受命担任克受命担任英国皇家海军太平洋考英国皇家海军太平洋考察队察队队长。在其后的队长。在其后的10年间，他带年间，他带领考察队进行了领考察队进行了3次史诗般的航行，次史诗般的航行，足迹遍及未知的太平洋，揭开了地足迹遍及未知的太平洋，揭开了地球上最大水域的地理秘密。球上最大水域的地理秘密。库克访问过库克访问过塔布担塔布担、澳大利亚澳大利亚、新西新西兰兰、马克萨斯群岛马克萨斯群岛、夏威夷夏威夷、复活节复活节岛岛和和威廉王子湾威廉王子湾等地，并

7、为这些地方等地，并为这些地方绘制了地图；狂风暴雨、惊涛骇浪、绘制了地图；狂风暴雨、惊涛骇浪、冰山、珊瑚礁、热带酷暑和南极严寒冰山、珊瑚礁、热带酷暑和南极严寒等艰难险阻，不断地向他袭来，直到等艰难险阻，不断地向他袭来，直到1779年他惨死在夏威夷岛民手中。在年他惨死在夏威夷岛民手中。在人们的记忆中，库克船长是人们的记忆中，库克船长是“水手中水手中的水手的水手”，在探险史上，还没有哪个在探险史上，还没有哪个人可与他的成就相媲美，世界地图将人可与他的成就相媲美，世界地图将永远带着他的印记。永远带着他的印记。Discuss1.How do you think seamen found their wa

8、y before modern accurate methods of navigation were invented?Kept close to the shore,used nature such as the sun,wind,birds,tide,etc,to help them,and used some of the instruments including a compass,astrolabe,etc.2.Which do you think was easier to work out:latitude or longitude?Latitude,because it w

9、as used to measure how far you had traveled from land on a straight line.It was discovered a long time before passcompass:consists of a small magnet balanced on a point so that it can move round in a circle.The magnet is generally called a needle because it is shaped like a needle.One of the end is

10、often markedN for north,or colored in some way to indicate that it points toward north.astrolabeThe astrolabe measures the height and position of the sun.If you can measure this accurately,a sailor can tell how many degrees the boat is from the North Pole.From this he can tell where the boat is in t

11、he ocean.sextant The sextant is a navigational instrument for measuring the angle between the horizon and some object in the sky,an updated version of the quadrant and so it was more accurate(from 0 to 120 degrees).quadrantquadrant:an earlier instrument measured in angle in the same way but it could

12、 only measure from angles 0 to 90 degrees.nautical chartNautical charts are maps of the depth of the sea and the currents of the oceans.They provide modern sailors with routes through the seas,rather like roads through the countryside.The information began to be collected in the nineteenth century a

13、nd has continued to be updated ever since.4.Which ones do you think are still used today?Sea charts are still used today.Read about what navigation was like before modern instruments were used.Use the information to analyze the navigational skills and write the answers in your own words.1.To find th

14、e ships position at sea a sailor used _.2.A sailor knew that land was nearby if he saw_ _.3.Sailors used _ _ to increase their speed.the North Star and the sun.sea currents or tides andwindsUsing nature fresh seaweed,nesting birds returning home or fogTask14.There were two methods to find longitude:

15、1._ 2._measuring time and speedcompass and complicatedmathematical tablesUsing instruments Sailing the oceans Fast-reading Task21.Before the 17th century,the travellers were at the control of the sea without modern navigational aids.2.Early sailors could use the height of the sun to work out their l

16、atitude.3.Wind could accelerate sailing speed and it was always safe and easy to use.F FT TF F4.Seamen cant sail the sea if they dont know latitude and longitude.5.The compass always indicate the North Pole,and seamen could find the direction that the ship needed to go with its help.6.The bearing ci

17、rcle was the first instrument to measure position between the sun and the ship.F FT TF F 7.The astrolabe was a special instrument to tell the distance among the ship,the sun and stars.8.The quadrant was awkward to handle and used a moving ship as a fixed point of reference.9.The sextant proved to be

18、 the most accurate and reliable one among the early navigational instrument.F FF FT TListen to the tape and then answer the questionsTask3ComprehendingRead the passage and answer the following questions.1.What is the use of a bearing circle,astrolabe,quadrant or sextant?()What is the use of a compas

19、s?()A.To set the course of the ship B.To measure the position of the ship C.To measure the speed of the ship D.To tell the timeAB人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingP

20、PT课堂课件课堂课件(47(47页页)（精品）（精品）2.Why are speed and time important in working out the longitude of a ship?Because the earth moves fifteen degrees westwards every hour.If you know your direction,speed and time,you can work out the approximate longitude or change in your position in relation to the stars.人

21、教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPP

22、T课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件3.Why is the position of the sun and various stars useful for working out latitude?Because they are fixed points in the sky and their movements in relation to the earth are already known.

23、So they can be used to measure a ships position.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warmi

24、ng up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou were far from land and a storm arose.Wait till the storm is over,and then find your new position an

25、d return to your original course.Read the chart below and fill in your plans of action to deal with them.Task4 Detailed reading人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT

26、课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou knew your latitude b

27、ut didnt know your longitude.Use knots to find your speed and work out your approximate longitude.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修

28、九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou were blown off-course.Use the compass and the ast

29、rolabe,quadrant or sextant to find out your position,return to your former course.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 War

30、ming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou were offshore but you needed more food and water.Follow nesting b

31、irds to shore;look for special cloud formations or fog over streams to find land.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warm

32、ing up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou wanted to keep a straight course.Use a compass.人教选修九人教选修九Unit 2 Wa

33、rming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Uni

34、t 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件What would you do if:Plan of actionYou were lost with no land in sight.Measure your position using the sun or stars;look for sea birds,cloud formations,fog or seaweed to show that land is nearby.人教选修九人教选修九

35、Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修

36、九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件Difficulties1.accomplished navigators These are navigators of great skill and experience who are among the best of their age group.2.nesting birds These are adult birds with baby birds in the nest

37、 that need to be fed.So the adult birds will return in the evening to feed them and protect them.3.all in one tool This means an instrument which does several jobs at the same time such as measuring the height of the sun and its position in the sky in relation to other stars as well.人教选修九人教选修九Unit 2

38、 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九

39、Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件4.This seems to have been the first and most useful form of exploration,.在在seem 后接动词不定式的完成式后接动词不定式的完成式seem to have done been表示该动作发生在表示该动作发生在seem之前之前.1).He seems to have lost confidence in himself.2).The

40、y dont seem to have grasped what I meant.3).Rose is quite familiar with the people in this town.She seems to have been there a lot.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and Readin

41、gPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件Homework1.English Weekly P1&P2.2.Preview Learning about

42、 language.人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)（精品）（精品）人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件人教选修九人教选修九Unit 2 Warming up and ReadingPPTUnit 2 Warming up and ReadingPPT课堂课件课堂课件(47(47页页)-)-精品精品PPTPPT课件课件