Warming up、Pre-reading、Reading、Comprehending优秀说课稿

Unit 2

Sailing the oceans Warming up & Reading

Words：

minimum

pole

overhead

offshore

outward

secure

magnetic

awkward

reference precise

simplify

portable

shortcoming

updated

tendency

reliable Step 1 Warming Up

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? What do you know about them?

Step 2 Reading

Now read about what navigation was like before modern instruments were used.

Comprehending 1 Read the passage and answer the following questions. （1）

What is the use of a bearing circle, astrolabe, quadrant or sextant? (

)

（2）

What is the use of a compass? (

)

A

to set the course of the ship

B

to measure the position of the ship

C

to measure the speed of the ship

D

to tell the time

2

What would you do if you came across the following problems during your

voyage? Read the chart below and fill in your plans of action to deal with them. What would you do if:

You were far from land and a storm arose.

You knew your latitude but didn't know your longitude.

You were blown off-course.

You were offshore but you needed more food and water. You wanted to keep a straight course.

Plan of action

You were lost with no land in sight.

3 Read the passage again and use the information to analyse the navigational skills.

Write the answers in your own words.

Using nature：

Using instruments：

4 Imagine you are on Category

Items

Category

Items

a boat with Clothes

Shoes

twenty-nine other Hygiene

Tools

people. You have a Bedding

Medicines

small box for your Games

Books

personal things but it can only hold ten items. What would you need for a week's journey across the North Sea to England?

Step 3 Language points

1. at the mercy of 听任…摆布，在…面前无能为力

They were lost at sea at the mercy of wind and weather.

have / show mercy on sb.宽恕或怜悯某人；

without mercy 毫不容情地

2. reference

n.

①

提到; 说到; 涉及

Avoid (making ) any reference to his illness.千万别提起他的病。

②

附注; 旁注

check your references

要核对引证的资料

【知识拓展】

refer v .

提到，说起，涉及；参考，查询，常与to 连用。

1）

When I said some people are stupid I wasn’t referring to you.

当我说某个人很愚蠢的时候，我没有提到你。

2）

If you don’t know what this means, please refer to the dictionary.

如果你不知道这是什么意思，请查看字典。

3 simplify v. 简化; 使单纯

1）She simplified the instructions so that the children could understand them.

她简化了指令以便于儿童理解。

2）That will simplify my task.

那可简化了我的工作。

4 update v. 更新; 补充最新资料

1）. The data should be updated once a week.

这些数据应该每星期更新一次。

2）. Maps need regular updates.

地图需要经常修订。

3）. I updated the committee on our progress.

我向委员会报告了我们的进展情况。

Step 4 Difficult sentences

analysis

1 The number of knots that were counted during a fixed period of time gave the speed of the ship in nautical miles per hour．

2. Later, when seamen began to use the compass in the 12th century they could calculate longitude using complicated mathematical tables．

3.The earliest，the astrolabe，was a special all-in-one tool for telling the position of the ship in relation to the sun and various stars which covered the whole sky．