Warming up、Pre-reading、Reading、Comprehending第二课时教案

Unit2 Sailing the oceans ⅠTeaching aims 1.

Talk about discovery and exploration of an unknown land 2.

Learn about some famous navigators and explorers 3.

Raise the awareness of the importance of science and technology Ⅱ

Teaching procedure

1.

Warming up Show studensts the map of The Silk Road Economic Belt and the 21st

Century Maritime Silk Road

Show students pictures of sailing technology in ancient China

2.

Reading Task1: Read the first para and answer the following questions. 1.What is the question the author wants to answer in the passage? 2. How did they navigate so well?

Reading skill 1: The first para will introduce the main idea Task2. Mind map the passage How

nature

instruments

Task 3: Check your preview .

What’s the functions of the helpers on Page 1? Task 4: How many methods are mentioned in this part?

Reading skill 3: Get the information from the key words--- v. or n

Task 5. Introduce the instruments

Task 6 Group work Group 1: Find the working principles.

Group 2:Find the adjectives.

The working principles:

the Bearing circle:

A seaman would measure the sun’s shadow and compare the height of the sun now

with the position of the 'sun at midday

the Astrolabe:

It would tell the position of the ship in relation to the sun and various stars. This gave the seamen the local time and allowed them to find their latitude.

the Quadrant:

It measured how high stars are above the horizon

using a quarter circle.

the Sextant:

It works by measuring the angle between two fixed objects outside the ship using two mirrors.

Reading skill 4: Judge the attitude from adj.

3.

Writing Tips 1.

Mind map can make the structure clear. 2.

The first paragraph will state the main idea. 3.

V. n. and adj. are the key What your opino about China’s overtaken by the West in science and technology? Useful expressions: 1. It's widely acknowledged that ------

2. Some reasons can explain this question.

First of all,--- .Secondly,---. Furthermore,---.

3. The reason why --- is that ---

4.What's far more important is that---.

5.There's no denying the fact that ---.

6. Now there is a growing awareness of the necessity to

7. To begin with;

What‘s more; In addition; Last but not least; To sum up; In short.