Warming up、Pre-reading、Reading、Comprehending评课稿

高中英语选修9 Unit 2 Sailing the Oceans Reading 教学设计

教材分析

1．中心话题是“航海、发现探索未知的大陆”，内陆涉及海洋航行、人类早期的航海技术、中国历史上最著名的航海家郑和、辛巴达的第一次冒险航行等。本单元的语言知识和语言技能都是依据“航海、发现探索未知的大陆”这个中心话题设计的。

2．本文目的旨在让学生了解在现代航海仪器发明以前，我们的祖先是怎样利用自然知识和一些简单的工具来对海洋进行探索。

学情分析

1．高中年龄段的学生对周围的事物较为敏感，有自己的观点和看法，他们不满足教科书上的知识，让学生主动学习，学有所获，如上网查阅资料，获取更多的信息。

2．学生不只想把英语作为一门死记硬背的课程来学，更希望能学到知识性和趣味性兼有的内容，从英语学习中获得更多的知识和能力。

3．探究早期海洋冒险家的经历，使学生对成为航海家所应该具备的素质有一定的了解。理解说明文语言的准确性，抓住说明事物的特征，这是说明文语言的先决条件，表示时间，空间，数量，范围，程度，特征，性质，诠释，分类，举例和程序等。

教学目标

（一）知识技能

1.通过本课的学习使学生能够在理解的基础上复述课文。

2.在阅读中体会并初步掌握生词、词组和句型的用法。

（二）情感态度

1.了解成为一个海洋冒险家的相关知识以及勇于挑战应具备的品质。2.鼓励学生打破“我不行”的心理暗示，让意念统领身体走出一条完美的道路

（三）学习策略 1.通过新词汇学习掌握速读、跳读和精读的要领。

2.通过阅读让学生了解到阅读过程中有阅读障碍，不可求全责备，调整心态和注意力，通过读懂细节，推断隐含内容，掌握其大意，获取所需信息。

教学重点和难点

重点：

1. 了解说明文的文体特点并以此指导阅读。

2.通过略读，导读，讨论，理解课文细节，理解词义，有效调动学生学习的主动性和自觉性。

难点：1.阅读技能的训练。2.学习有关海洋探险的词汇并加以在句子中的灵活活用

Teaching procedure Step 1． Warming up ⑴ Warming up by leaning about the definition of navigator. ⑵ Warming up by talking about Zheng He's Seven Voyages ⑶

Warming up by looking and learning about navigational instruments Step 2. Skim the text and find answers to the text. 1) When did early sailors have practical method of measuring longtitude? 2）Which is more precise and simplified, the astrolabe or the quandrant? 3) How did early seamen use weather during the navigation? 4) What does seaweed look like when it is near land? 5) Where are we now when the North Star is along the horizon? Step 3.Careful reading 1. Answer the questions about the reading passage. 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 posision of a stream or river? 2. Do comprehending “true or false”.

1） Before the 17th century, the travellers were at the control of the sea without modern navigational aids. 2）

Early sailors could use the height of the sun to work out their latitude. 3) Wind could accelerate sailing speed and it was always safe and easy to use. 4)The astrolabe was a special instrument to tell the distance among the ship, the sun and stars. 5)The quadrant was awkward to handle and used a moving ship as a fixed point of reference. 6) The sextant proved to be the most accurate and reliable one among the early navigational instrument. 3. Please complete the following blanks using the information of the text book. 4. Closing down by answering comprehension questions 1) What is the main topic of this passage? A. The voyages of the travelers before the 17th century B. How to plot a ship’s position on a map

C. How did ancient men navigate so well

D. Use nature to aid navigation 2) Ancient navigators use navigational instruments to help them

_____. A. find celestial bodies B. predict the weather C. explore the sea D. find latitude 3) The author of the passage implies that the ancient navigators were _____. A. hard-working B. brave C. intelligent D. energetic 4) According to the passage, _____. A. the ancient accomplished navigators were able to use South Star to plot their positions．

B. Sea birds could be used to show the way to land when it was nowhere to be seen．

C. Wise seamen used the snows to direct their sailing．

D. The sextant proved to be the most accurate and reliable of these early navigational instruments． (Keys: BDCB ) Step 4. Discussion How do you think seamen found their way before modern accurate methods of navigation were invented? What qualities do seamen need during the navigation? Step 5. Homework

1. Do comprehending Ex.1--4 2. Remember the new words and useful sentences the teacher explained