高中英语 Unit2Sailing the oceans-Textbook课件 新人教选修9 公开课精品课件
use knots to find your
You knew your
speed and work out
latitude but didn't your approximate
know your longits and
You were blown off- the astrolabe,
1 _m_e_a_s_u_r_in_g__ti_m_e__a_n_d_s_p_e_e_d____
2 _c_o_m_p_a_s_s_a_n_d__c_o_m_p_l_ic_a_t_e_d__ __m_a_t_h_em__a_ti_c_a_l_ta_b_l_e_s___ .
5 Write down the working principles of the following instruments:
Very often navigators are also explorers.
Pre-reading
• Look at the pictures. Then answer the questions. 1 How do you think seamen found their way 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.
You wanted to keep a straight course.
use a compass
You 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
3 Can you identify these early navigational instruments seamen used and explain how they are used? 1 _co_m__p_a_s_s_(_in__a_n_ci_e_n_t_C_h_i_n_a_)___ 2 _a_s_tr_o_l_a_b_e_ 3 _s_e_x_ta_n_t___ 4 _s_e_a_/_n_a_u_t_ic_a_l_/_m__a_ri_n_e_c_h_a_r_t _
A navigator explores the sea; an explorer discovers new places on land.
3 Look at these famous people. Are they navigators or explorers? What do you know about them?
2 Which do you think was easier to work out: latitude or longitude?
Latitude, because it was used to measure how far you had travelled from land on a straight line. It was discovered a long time before longitude.
Explorer
land use of compass and
landmarks find new places within an
already identified island or continent
Explorer is someone who travels into or through a place in order to learn about it.
What would you do if: Plan of action
wait till the storm is You were far from over, and then find land and a storm arose. your new position
and return to your original course
2 What problems would you anticipate for this journey?
I would anticipate very hot weather (around the equator), cold weather (around the Cape of Good Hope), very stormy seas (around the Cape), and problems with food and water (unless helped by local natives the water may be contaminated and the food scarce), etc.
2 Why are speed and time important in working out the longitude of a ship?
Speed and time are important in finding 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.
3 Sailors used _se_a__c_u_rr_e_n_ts__o_r_ti_d_e_s_a_n_d__w_i_n_ds to increase their speed.
Using instruments 4 There were two methods to find longitude:
4 Which ones do you think are still used today? Sea charts are still used today.
Comprehending
1 Read the passage and answer the following questions. 1 What is the use of a bearing circle, astrolabe, quadrant or sextant? (B)
In pairs discuss these questions: 1 What is a navigator?
A navigator explores new routes across the sea. 2 What is the difference between a navigator and an explorer?
2 A sailor knew that land was nearby if he saw _fr_e_s_h_s_e_a_w_e_e_d_,_n_e_s_ti_n_g_b_i_rd_s__re_t_u_rn_i_n_g _h_o_m_e__in__th_e__ev_e_n_i_n_g_o_r__fo_g__ .
What is the use of a compass? (A) 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 time
• Beating circle: _to__c_o_m_p_a_r_e_t_h_e_h_e_i_g_h_t _o_f_th_e__s_u_n_n_o_w____ _w_i_th__t_h_e_p_o_s_it_io_n__o_f_t_h_e_'s_u_n__at__m_i_d_d_ay.
• Astrolabe: __to__c_o_m_p_a_r_e_t_h_e_p_o_s_i_ti_o_n_o_f_t_h_e_s_h_i_p_i_n__ __r_el_a_ti_o_n__t_o_s_o_m_e__s_ta_r_s_o_r_t_h_e_s_u_n___ .
course.
quadrant or sextant to
find out your position,
return to your former
course
You were offshore but you needed more food and water.
follow nesting birds to shore; look for special cloud formations or fog over streams to find land
3 Why is the position of the sun and various stars useful for working out latitude?
The position of the sun and stars are useful for working out latitude because they are fixed points in the sky and their movements in relation to the earth are already known. So they can be used to measure a ship's position.
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高中英语 Unit2Sailing the oceans-Listening课件 新人教选修9
WM: I see! So what did they do? DS: Well, one of the things they did
was concentrate on watching
birds. There's the story of a Viking called Raven-Floki. He used to keep birds on his ships but he didn't feed them. Then when he thought land was near he'd let the birds go and if they flew straight to land, all he had to do was to follow them!
Exercise 4
1.The Emperor wanted to demonstrate Chinese power abroad so _h_e__se_n_t__Z_h_e_n_g__H_e__w_i_th__a_l_a_r_g_e_f_le_e_t_o_f__ _s_h_i_p_s_t_o_v_i_s_it_n_e_w__p_l_a_c_e_s_in__n_e_i_g_h_b_o_u_r_in_g _c_o_u_n_t_r_ie_s_._
Listening
1. Read these words and then listen to the tape. Circle those aids that early sailors used to find their way.
compass stars currents birds
maps fish movements
DS: Of course. At first if there was no land nearby the seamen used the sky to find their way. They looked
was concentrate on watching
birds. There's the story of a Viking called Raven-Floki. He used to keep birds on his ships but he didn't feed them. Then when he thought land was near he'd let the birds go and if they flew straight to land, all he had to do was to follow them!
Exercise 4
1.The Emperor wanted to demonstrate Chinese power abroad so _h_e__se_n_t__Z_h_e_n_g__H_e__w_i_th__a_l_a_r_g_e_f_le_e_t_o_f__ _s_h_i_p_s_t_o_v_i_s_it_n_e_w__p_l_a_c_e_s_in__n_e_i_g_h_b_o_u_r_in_g _c_o_u_n_t_r_ie_s_._
Listening
1. Read these words and then listen to the tape. Circle those aids that early sailors used to find their way.
compass stars currents birds
maps fish movements
DS: Of course. At first if there was no land nearby the seamen used the sky to find their way. They looked
人教版高中英语选修9课件：Unit 2 Sailing the oceans Learning about language(共26张PPT)
2. s a great English navigator and Pacific Ocean expedition leader.
2. He had not only an outstanding ability in navigation and exploration, but also a real concern for sailors’ health. He carried out compulsory dietary reforms that were copied by many other ship captains.
_n_o_w__h_e_r_e_ anywhere _d_o_w__n_lo_a_d_ upload _o_u_t_w_a_r_d__ inward _re_l_ia_b__le_ unreliable _s_e_a_w__ee_d__ land flower _s_h_o_r_t_co_m__i_n_g_ strong point
“How lucky I am!” Samuel thought to himself. He then gave a mighty leap and landed in it. Once inside he could safely sail away.
1. Read the information below and learn more about Captain Cook. Then underline the predicates in
3. He had led three great Pacific voyages during his life.
4. In his first Pacific voyage in 1769, James Cook rounded Cape Horn, then spent six months charting New Zealand, and finally explored and claimed possession of eastern Australia.
2. He had not only an outstanding ability in navigation and exploration, but also a real concern for sailors’ health. He carried out compulsory dietary reforms that were copied by many other ship captains.
_n_o_w__h_e_r_e_ anywhere _d_o_w__n_lo_a_d_ upload _o_u_t_w_a_r_d__ inward _re_l_ia_b__le_ unreliable _s_e_a_w__ee_d__ land flower _s_h_o_r_t_co_m__i_n_g_ strong point
“How lucky I am!” Samuel thought to himself. He then gave a mighty leap and landed in it. Once inside he could safely sail away.
1. Read the information below and learn more about Captain Cook. Then underline the predicates in
3. He had led three great Pacific voyages during his life.
4. In his first Pacific voyage in 1769, James Cook rounded Cape Horn, then spent six months charting New Zealand, and finally explored and claimed possession of eastern Australia.
人教版高中英语 Unit2Sailing the oceans-Reading课件 新人教选修9
sextant
The sextant is a navigational instrument for measuring the angle between the horizon and some object in the sky. First a sailor looks at the horizon through an eyepiece. At the same time he can see light from the sun or a star reflected off a small mirror on top of the instrument, onto a second mirror and into the eyepiece.
Discuss
1. How do you think seamen found their way 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.
The handle of the spoon points to the south, while the other side points to the north. When the Sinan is in the still, the handle of the spoon points to the south because of influence of the terrestrial magnetism (地磁).
高中英语 Unit 2 Sailing the oceans Listening exerc
WM: That _s_o_u_n_d_s_ clever! I’ve heard too about the Polynesians in the Pacific Ocean. They did some _a_m__a_zi_n_g_ _v_o_y_a_g_es_ without any navigational instruments to help them at all. How did they do that?
WM: I see! So what did they do? DS: Well, one of the things they did
was _c_o_n_c_e_n_t_ra_t_e_ _o_n_ watching
birds. There's the story of a Viking called Raven-Floki. He used to keep birds on his ships but he didn't _fe_e_d_ them. Then when he thought land was near he'd let the birds go and if they flew straight to land, all he had to do was to _f_o_ll_o_w_ them!
It _f_le_w_ back to the Faroe Islands. A day after this he let the second bird go. This flew out of sight but _ca_m__e_ b__a_ck_ to rest on the ship. Sometime after that, he let the third bird go. It _h_e_a_d_e_d_ straight for Iceland so Raven-Floki followed it and arrived there _sa_f_e_ly_.
高中英语 unit 2 sailing the oceans课件 选修9
12/12/2021
The First Voyage. Following the war，Cook was given the mission to lead an expedition to observe the rare passage of Venus across the face of the sun in order to determine the accurate distance between the earth and sun.He set sail from England ind at Tahiti where he did the observation.He proceeded to the West Indies and across the Indian Ocean to the Cape of Good Hope at the southern tip of Africa.
12/12/2021
谢谢观看！
12/12/2021
12/12/2021
Upon yet again discovering that something did not exist，he continued his voyage.His last stop was in February，1779 at Hawaii where he was killed in a fight with islanders over the theft of a boat.
Cook’s explorations greatly increased European knowledge of the world.As a ship captain and skilled cartographer，he filled in many gaps on world maps.His contributions to eighteenth century science helped further exploration and discovery for many generations.
The First Voyage. Following the war，Cook was given the mission to lead an expedition to observe the rare passage of Venus across the face of the sun in order to determine the accurate distance between the earth and sun.He set sail from England ind at Tahiti where he did the observation.He proceeded to the West Indies and across the Indian Ocean to the Cape of Good Hope at the southern tip of Africa.
12/12/2021
谢谢观看！
12/12/2021
12/12/2021
Upon yet again discovering that something did not exist，he continued his voyage.His last stop was in February，1779 at Hawaii where he was killed in a fight with islanders over the theft of a boat.
Cook’s explorations greatly increased European knowledge of the world.As a ship captain and skilled cartographer，he filled in many gaps on world maps.His contributions to eighteenth century science helped further exploration and discovery for many generations.
Unit 2 Sailing the oceans-Reading 课件-人教选修9精品
The handle of the spoon points to the south, while the other side points to the north. When the Sinan is in the still, the handle of the spoon points to the south because of influence of the terrestrial magnetism (地磁).
Discuss
1. How do you think seamen found their way 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.
nautical chart
Nautical 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 and has continued to be updated ever since. These charts were not available to Captain Bligh or Zheng He.
新人教版高中英语选修9课件：Unit 2 Sailing the oceans Reading(共5
Marco Polo 1254--1324
He is the most famous westerner to travel the Silk Road and the only person to provide information about China to the outside world. In 1271 he set out to reach the Mongol Empire and then China. In 1295, he arrived back in Europe. Three years later he was imprisoned by the Genoese. While in prison, he told the story
A navigator explores new routes across the sea.
the Arctic Ocean
the Atlantic Ocean
Christopher Columbus 克里斯托弗 ·哥伦布
the Indian Ocean
the Pacific Ocean
Vasco da Gama 瓦斯科 ·达伽马
What is the difference between a navigator and an explorer?
Naviபைடு நூலகம்ator
sea
nautical instruments
find new islands or continents
A navigator explores the sea.
compass
astrolabe
sextant
nautical chart
Answer the questions. 1. How do you think seamen found their
高中英语 Unit2Sailing the oceansReading课件 新人教选修9(通用)
3. Can you identify these early navigational instruments seamen used and explain how they are used?
1) compass ( in ancient China) 2) astrolabe 3) sextant 4) sea / nautical / marine chart
Discuss
1. How do you think seamen found their way 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.
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 time
2) Why are speed and time important in working out the longitude of a ship?
It has 17 stars listed as well as a map of the sky overhead (for 37 degrees) and the ecliptic (黄道). The time of day or night is on the outside astrolabe edge with noon at the top of the Astrolabe and midnight at the bottom. It comes with a carrying chain, a pouch, and a book on its use. The reverse side has a sight for measuring the elevations of the heavenly bodies.
高中英语 Unit2Sailing the oceans-Listening课件 新人教选修9
Sail west but keep to the north of the Shetland Islands so you can hardly see them in good weather.
Stay far enough south of the Faroes so that their steep mountains are just halfway up the horizon.
Listen to the tape and tick those ports and islands mentioned in the text.
Exercise 3
Statement
1. He is the only 15th century Chinese navigator we know. 2. He came from Yunnan Province.
Exercise 4
1.The Emperor wanted to demonstrate Chinese power abroad so _h_e__se_n_t__Z_h_e_n_g__H_e__w_i_th__a_l_a_r_g_e_f_le_e_t_o_f__ _s_h_i_p_s_t_o_v_i_s_it_n_e_w__p_l_a_c_e_s_in__n_e_i_g_h_b_o_u_r_in_g _c_o_u_n_t_r_ie_s_._
Listening on P59
Zheng He sailed from China to many places throughout South Pacific, Indian Ocean, Taiwan, Persian Gulf and distant Africa in seven epic voyages from 1405 to 1433 ,some 80 years before Columbus's voyages.
Stay far enough south of the Faroes so that their steep mountains are just halfway up the horizon.
Listen to the tape and tick those ports and islands mentioned in the text.
Exercise 3
Statement
1. He is the only 15th century Chinese navigator we know. 2. He came from Yunnan Province.
Exercise 4
1.The Emperor wanted to demonstrate Chinese power abroad so _h_e__se_n_t__Z_h_e_n_g__H_e__w_i_th__a_l_a_r_g_e_f_le_e_t_o_f__ _s_h_i_p_s_t_o_v_i_s_it_n_e_w__p_l_a_c_e_s_in__n_e_i_g_h_b_o_u_r_in_g _c_o_u_n_t_r_ie_s_._
Listening on P59
Zheng He sailed from China to many places throughout South Pacific, Indian Ocean, Taiwan, Persian Gulf and distant Africa in seven epic voyages from 1405 to 1433 ,some 80 years before Columbus's voyages.