Warming up、Pre-reading、Reading、Comprehendingppt配用优秀教学设计

Unit 2 Sailing the oceans Sailing the oceans warming up and reading 教学设计

Teaching Objectives 1.To help students learn to express causes and effects 2.To help students learn to read an exposition about sailing the oceans

3.To help students better understand “sailing”

4.To help students learn to use some important words and expressions 5.To help students identify examples of the future passive voice in the text Aids Multimedia facilities, tape-recorder, photos, diagrams

Teaching Procedures step 1 Warming up

⑴ Warming up by leaning about navigator A navigator is the person onboard a ship responsible for the navigation of the vessel. On aircraft, the position may also be referred to as a flight officer. The navigator's responsibilities include planning the journey, advising the captain (or pilot) while en route, and ensuring that hazards or obstacles are avoided. ⑵Warming up by talking about Zheng He's Seven Voyages In July 11, 1405, the eunuch Zheng He of the Ming Dynasty royal court set out on his first overseas voyage. In the following 28 years, this navigator proceeded to carry out six more voyages, accompanied by a huge entourage of nearly 30,000 people. By traveling throughout Southeast Asia, and around the Indian Ocean to the Red Sea and East Africa, he also landed at over thirty different nations. He was the earliest largest scale navigation in world history, coming more than half a century earlier than Columbus'famous exploits... step 2.learning about navigational instruments

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artificial horizon, flight indicator, gyro

horizon - a navigational instrument based on a gyroscope; provides an artificial horizon for the pilot ◇

compass - navigational instrument for finding directions

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depth finder - navigational instrument used to measure the depth of a body of water (as by ultrasound or radar) ◇

inclinometer - an instrument showing the angle that an aircraft makes with the horizon ◇

instrument - a device that requires skill for proper use ◇

asdic, echo sounder, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; sonar is an acronym for sound navigation ranging; asdic is an acronym for anti-submarine detection investigation committee step 3. pre-reading The four basic instruments for navigation:

Sinan, Astrolabe, Sextant, sea/nautical chart step 4 fasting reading

SAILING THE OCEANS ■Using nature to help keeping ■Using navigational instruments to alongside the coastline help ●Using celestial bodies: North Star; Sun; ●finding longitude

Clouds ●Using wildlife: Seaweed; Birds ●Finding latitude: The Bearing Circle; The Astrolabe; The Quadrant; The sextant ●Using the weather: Fog; Winds ●Using the sea

step 5 . careful reading

Type of writing and summary of SAILING THE OCEAN Type SAILING THE OCEAN Using nature to help: Keeping alongside the coastline, using celestial bodies, using exposition

wildlife, using the weather, using the sea Using navigational instruments to help: Finding longitude, Finding latitude Making a diagram of SAILING THE OCEAN SAILING THE OCEANS （An exposition）

Using nature to keep alongside coastline

Part 1

Using navigational instruments to help

Part 2

Using celestial bodies

finding longitude

Using wildlife

Using the weather

Using the sea

step 6.post reading

What would you do if you came across the following problems during your voyage? What would you do if: Plan of action You were far from land and a storm arose.

You knew your latitude but didn’t know your

longitude. You were blown off-course.

You were offshore but you needed more food and

water. You wanted to keep a straight course.

You were lost with no land in sight.

step 7.homework

1. Review this passage. 2. Preview Learning about language.