Warming up、Pre-reading、Reading、Comprehending优秀完整教案

Unit 2

Sailing the oceans

Reading

重庆市大足一中

廖渝凤

Teaching Aims:

教学目标

a. Learn and master the key words and expressions

b. Train the students’ reading ability. Let the students have some knowledge of early navigational instruments were used to sailors before the 17th century when they were navigating the open seas without seeing the land. Teaching Difficult Points: 教学难点

a.

How to help the students understand the reading passage better. b.

How to improve the students’ reading ability. Teaching Methods:教学方法

a.

Scanning the text to get the general idea of it. b.

Carefully reading to finish the Comprehending exercises on page 14. c.

Discussion after reading to make the students understand the text better. Teaching Aids:教学工具

The multimedia; a tape recorder; the blackboard Teaching procedures & ways 教学步骤与方法

Step1 Greetings Greet the whole class as usual.

Step2 Revision

Check the homework exercises. Step3 Prenavigational methods. Explain how seamen explored the oceans and what kind of -reading 1.

Show the students some pictures to look at the early seamen and their contribution. 2.

Show the students some pictures to see if they can identify the early navigational instruments seamen used and explain how they used. Step 4 Reading 1.Fast-reading

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Page 1: How did seamen explore the oceans before latitude and longitude made it possible to plot a ship’s position? Page 2:

What skills did sailors use to explore the seas and discover new lands? 2.Careful reading Listen to the tape and then answer the questions (1). Why are speed and time important in working out the longitude of a ship? (2). Why is the position of the sun and various stars useful for working out latitude? (3).True or false questions: 1. An early method of calculating longitude was to use a knotted rope tied to a log. 2. The astrolabe was the first instrument to measure the sun’s position. 3. The quadrant was more precise and simplified than the astrolabe, but still had its shortcoming. 4. Up till now, the most accurate and reliable navigational instrument is the sextant.

5. The astrolabe, quadrant and sextant are different kinds of navigational

instruments and they have nothing to do with each other. (4).Answer the questions: 1.How many skills are mentioned to help the navigators explore the seas? 2.What is the first and most useful form of exploration and has the minimum risk? 3.What does seaweed look like when it is near land? 4.When did seaman use fog to help identify the position of a stream or river? (5)Please complete the following blanks using the information of the text book. 1)Seamen explored the oceans by using _______ and navigational ___________.

2)Using nature navigators could keep alongside the _______, use such celestial bodies as North Star to _______ their positions, as the sun overhead to _______ by, as clouds over islands to indicate land close by.

3)Wildlife, especially _______ could tell how far or close the ship was to land and _______ could be used to show the way. Fog could help identify the _______ of a stream or river and winds direct the sailing. Certain tides and currents could be used to carry ships to the _______.

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Step 5 Discussion What would you do if you came across the following problems during your voyage? Step6 Summary

This reading explains how seamen explored the oceans and what kind of navigational instruments were used to sailors before the seventeenth century when they were navigating the open seas without seeing the land. Ste7 Homework 1. Review this passage. 2. Preview Learning about language.

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