Warming up、Pre-reading、Reading、Comprehending第一课时评课稿

Unit2 Sailing the oceans （一）教学目标：

1、知识目标

（1）.理解并熟读Reading部分本单元的单词和短语。

（2）.理解并掌握整个故事的情节,并能填写summary.

2、能力目标

（1）充分发挥学生的主体地位，调动学生思维的积极性，提高综合语言的运用能力

（2）通过对学生说读写的训练，增大学生的语言输入，增强其语言输出能力。

3、情感、态度、价值观目标

学生分析布莱船长在40多天的航程中所采用的航海技术以及所表现出的领导才能。同时，又适时地对他们进行情感教育：在任何困难面前绝不畏惧，不抛弃，不放弃。

（二）教学重点与难点：

读说练均为本节课的重点，练和说部分应为难点，需加大指导和练习。

（三）教学用具：多媒体英语课件。

（四）教学设计

1.review 将下列单词与其相对应的释义搭配起来

A

B 1.mercy

a. not anywhere 2.alongside 3.minimum 4.nowhere 5.secure 6.awkward 7.random b. least or smallest c. kindness; forgiveness d. exact; accurate e. side by side with; beside f. made or done without any plan g. difficult to use

8.precise 2. Warming up h. safe In pairs discuss these questions：

1．What is a navigator? 2．What is the difference between a navigator and an explorer? 3．Look at these famous people.Are they navigators or explorers? 3.Pre-reading Look at the pictures. Then answer the questions. 1．How do you think seamen found their way before modern accurate methods of navigation were invented?

2．Can you identify these early navigational instruments seamen used and explain how they are used? 3．Which ones do you think are still used today?

4.Fast reading Read the text and choose the right answer according to the text. 1．When did early sailors have a practical method of measuring longitude? A．The 12th century.

B．The 17th century. C．The 15th century. D．The 16th century.

2．What does seaweed look like when it is near land?

A．It looks nice. B．It looks small.

C．It looks fresh. D．It looks dark.

3．Where are we now when the North Star is along the horizon? A．At the equator. B．At the North Pole. C．At the South Pole. D．At sea.

4．From the reading we have learned____________. A．why early seamen wanted to sail the seven seas B．that there is useful information in an encyclopedia

C．that early sailors went exploring the seas using their skills and simple instruments D．why latitude and longitude are important to plot a ship’s position

5．The main idea of this passage is about____________. A．that keeping alongside the coastline is first and most useful form of exploration B．the skills and navigational aids early seamen used while sailing the oceans C．that finding longitude and latitude is a must to plot a ship’s position on a map

D．how the early sailors used their skills and simple instruments

5.Careful reading Fill in the following blanks with proper words. 1．We may well wonder _____seamen explored the oceans before latitude and longitude made ______ possible to plot a ship’s position on a map.

2．There is a special cloud formation ______ indicates there is land close by.

3．Sailors often _____(see) seamen in the sea and could tell through by the colour and smell how long it had been there. 4. Sea birds could be used to show the way _____ (land) when it was nowhere to be seen. 5．_____ early method of measuring speed involved throwing a ______(knot) rope tied to a log over the side of the ship.

6.Post reading Summary of the text This reading explains how seamen 1._____(explore) the oceans and what kind of navigational instruments were used to sailors 2._____the seventeenth century 3._____they were navigating the open seas without seeing land.The 4.______(voyage) of travellers before the 17th century show that they were not 5._____the mercy of the sea even though they did not have modern 6.____________(navigation) aids.The seamen could use celestial bodies，wildlife，the weather or the sea to keep 7.__________the coastline.They could also use 8.____________compass to help find the direction that the ship needs to go.They could use the 9.____________(bear) circle

to measure the sun’s position and tell if they were sailing on their correct rather than a random course.While the astrolabe，the quadrant and the sextant could help give the seamen the local time and allowed them to find their 10.____________at sea.