Warming up、Pre-reading、Reading、Comprehending公开课教案

Book9 Unit2 Sailing the oceans

------A sample plan for Reading 教师：江西省瑞金市瑞金第一中学

黄华

年级：高三

课题名称：新人教版-英语-选修9Unit2 Sailing the oceans Reading 教学内容：Reading 教材分析：

本单元的中心话题是“航海、发现探索未知的大陆”。本课例是高三第二单元的Reading部分。Reading部分是一篇说明文，用百科全书的形式呈现出的内容是让学生了解在现代化的航海仪器发明之前人们是怎样航海的。阅读的内容分为两部分：第一页是介绍古代航海者怎样借助自然环境的帮助进行航海；第二页介绍早期的航海者怎样利用航海仪器来确定经度和纬度。

Teaching Aims:

教学目标

a. Learn and master the key words and expressions

navigate, navigator, navigation, navigational, explore, explorer, exploration, voyage, mercy, minimum, nowhere, pole, overhead, offshore, accelerate, outward, longitude, latitude, precise, simplify, portable, shortcoming, updated, tendency, reliable, at the mercy of, even though, work out, be used to, in relation to, aim to , …

b. Talk about sailing the oceans. C. Train the students’ reading ability. Let the students have some knowledge of early navigational methods. Explain how seamen explored the oceans and what kind of 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.

Discussion to arouse the students’ interest in sailing and exploring the oceans. b.

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

Carefully reading to finish the Comprehending exercises on page 14. d, Discussion after reading to make the students understand the text better.

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Teaching Aids: 教学工具

The multimedia; a computer; courseware Teaching procedures

教学步骤

Warming up Pre-reading Fast reading Detailed reading Further understanding Discussion Watching Homework Step1 Warming up Show the students some pictures, and ask the following questions: 1.

When you see the picture, what can you think of? 2.

Who do you think play the most important role in sailing? why? 3.

Who do you think was the most famous navigator in Chinese history?

4.

Do you know any famous navigators in western counties?

【设计说明】：通过图片引出本课话题---航海。然后通过一系列问题引导学生学习本课重点词汇。然后介绍中国伟大的航海家郑和。

Step2 Pre-reading

Play matching games to see if they can identify the early navigational instruments seamen used and explain how they used. 【设计说明】：通过两个匹配游戏让学生对早期航海仪器及其功能有一个大概的了解。图文结合，比较直观，引起学生的兴趣。

Step3

Fast reading 1.

Ask the students to skim the Page1 of the passage, and then finish the following tasks.

How did seamen explore the oceans before modern instruments were used? 1)

By using nature _________________________ 2)

By using celestial bodies _________________________

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3)

By using wildlife ________________________ 4)

By using the weather ________________________ 2.

Ask the students to skim the Page2 of the passage, and then answer the following questions. 1)

What could be found by using navigational instruments? 2)

What was used to find longitude? 3)

What were used to find latitude? 【设计说明】：通过快速浏览课文，让学生快速获取文章基本信息，掌握文章大意。

Step4 Detailed reading 1.

Ask the students read the passage carefully then finish the following tasks:

1)

answer the following questions:

 What is the use of a bearing circle, astrolabe, quadrant or sextant? What is the use of a compass? 

Why are speed and time important in working out the longitude of a ship?  Why is the position of the sun and various stars useful for working out latitude? 2)

Read the passage and decide whether the following statements are true (T) or false (F). 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.

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【设计说明】：通过仔细阅读课文，让学生掌握文章详细内容，让他们对早期航海仪器及其原理有大概的了解。同时运用不同的阅读技巧来理解文章，从而提高学生的阅读能力。

Step5 Further understanding Ask the students to finish the following tasks: 1.

Use the information to analyze the navigational skills and write the answers in your own words. Using nature: 1)

To find the ship’s position at sea a sailor used _______________________. 2)

A sailor knew that land was nearby if he saw__________________________ __________________________. 3)

Sailors used ____________________ ______ to increase their speed. Using instruments 4) There were two methods to find longitude: 1. _______________________________________ 2.________________________________________ 5) Write down the working principles of the following instruments: 1).Bearing circle 2). Astrolabe 3). Quadrant 4). Sextant 【设计说明】：通过进一步理解，让学生对文章内容进行消化巩固。

Step6 Discussion Ask the students to discuss the following question: What would you do if you came across the following problems during your voyage? What would you do if: You were blown off course.( group1)

plan of action You knew your latitude but didn't know your longitude.( group2)

You were lost with no land in sight. ( group3)

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Then each team sends a representative to show their answers. 【设计说明】：通过讨论让学生灵活运用课文所学知识来解决问题，调动学生的积极性，让他们主动参与课堂活动。

Step7 Watching Show a piece of video about oceans to the students. 【设计说明】：通过观看一段关于海洋的视频，让学生直观地了解海洋和航海环境，激发学生的兴趣。

Step8 Homework 1. Review this passage; 2. Search more information about navigations and navigators. 【设计说明】：让学生课后复习课文并搜索更多关于航海和航海家的信息来巩固和延伸本课所学知识内容。

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