Unit 2 Sailing the oceansI. 单元教学目标技能目标GoalsTalk about early navigation Talk about discovery and exploration of an unknown landLearn about some famous navigators and explorersLearn to express the cause and effectLearn to use the PredicateWrite a report about a navigator or an adventurous story.目标语言词汇voyage mercy encyclopedia alongside exploration minimum celestial pole equator horizon overhead seaweed nowhere offshore accelerate outward tide secure log knot nautical magnetic random awkward reference precise simplify portable shortcoming update tendency reliable swoop parcel peck cliff expedition compulsory survival incident departure crew deposit dilemma drawback dusk routine reckon reckoning starvation psychology psychologically tension gradual gradually foresee thirst tear hardship jaw background roarat the mercy of nautical mile set loose jaws of death功能句式Cause & effect Why are you.? How could you .?Why did you.? Because of .It was because. The reason is that .As he. Since she .Now that. Therefore, .He was due to. It is ., so Im afraid .Thats why. He . so he is ill with fever after the voyage.语法复习谓语(The Predicate)So how did they navigate so well?As you can see from the map we kept to straight course pretty well.The tension in the boat got worse as the supply of food and water gradually disappear So accomplished navigators were able to use it to plot their position.Captain Cook had led three great Pacific voyages during his life.Ill go and get ready to begin work.重点句子1. You may well wonder(p12)2. show that they were not at the mercy of the sea even though(p12)3. Sea birds could be used to show the way to land when it was nowhere to be seen. (p12)4. There was no secure method of measuring longitude until the 17th century when the British solved this theoretical problem. (p13)5. Its shortcoming was that it still used the moving ship as one of the fixed points of reference. (p13)6. I am proud to have sailed with Captain Bligh on his journey of(p17)7. You could not imagine a more disturbing sight than what we looked like when arriving in Timor over forty days after being set loose in(p17)分课时教案The First Period SpeakingTeaching Aims: a. Key words and expressions navigate, navigator, navigation, navigational; explore, explorer, explorationb. Talk about sailing the oceans.Teaching Methods:Discussion to arouse the students interest in sailing and exploring the oceans.Individual, pair or group work to make every student work in class.Teaching Aids:The multimedia; a tape recorder; the blackboardTeaching Procedures:Step1 GreetingsGreet the whole class as usual. Step2 Revision Check the homework exercises.Step 3 PresentationPresent the students a map of the world and tell them “Today we are going to learn a new unit “Sailing the oceans”. Then ask them to turn to page 11 and give them a few minutes to have a discussion. Step 4 DiscussionIn pairs discuss the questions on page11.This discussion is intended for students to explore the difference between a navigator and an explorer. This difference is important to establish because it encourages students to appreciate shades of meaning in the definitions f words and also because it establishes the idea of categories.After a few minutes, ask some pairs to speak out their result of the discussion. Then sum up and check the answers.A navigator explores new routes across the sea.An explorer discovers new places on land.A navigator is somebody who finds the position and plots the course of a ship, an aircraft, a car, etc, using maps and instruments. An explorer is somebody who travels into or through a place in order to learn about it. Very often navigators are also explorers.In history there are four famous voyage explorers in the world, including Zheng He in China, James Cook in England, Christopher Columbus in Spain and Abel Tasman in Holland.In this unit well talk about Zheng He, James Cook and some other explorers like Marco Polo and Captain Bligh.Step 5 Pre-speakingAsk the students if they want to know some famous navigators and explorers. Then present them some pictures and some related information about them.1. About Zheng He.2. About Marco Polo3. About James Cook4. About Ferdinand Magellan Step 6 Speaking After showing the students the pictures and their background information, ask the students to think about the question: How do you think seamen found their way before modern accurate methods of navigation were invented? If time is limited, this can be left as their homework.Step 7 Homework1. Read the new words.2. Preview Reading SAILING THE OCEANS on page 12.The Second Period ReadingTeaching Aims: a. Learn and master the key words and expre