单　　元：Unit 3 Tomorrow's world

板　　块：Word power

课堂设计指导思想：

本节课是以读、写为主的词汇教学课。内容包括用名词或动词加上后缀构成抽象名词，以及与电脑相关的词汇等。学习一定的构词法知识，可以有效地拓展学生的词汇量。通过构词法教授词汇，不仅可以使学生利用较少的时间掌握较多的词汇，而且还可以使学生通过对词缀的了解来猜测词义，从而扩大词汇量。本课主要通过引导学生自行归纳抽象名词的构成规律的方法进行教学，不仅有助于增加学生的词汇量，而且可以使学生初步形成自己的词汇认知策略，学会根据词根及后缀来猜测词义。

Teaching aims:

1. Learn how to form abstract nouns from verbs and adjectives by adding suffixes.

2. Learn some words related to computers.

3. Expand related vocabulary and apply them practically.

Teaching procedures:

Step 1 Revision（PPT page 4，显示表格，实例可写在黑板上）

Help students revise the common suffix used to form adjectives learnt in Unit 1 using the following chart and ask students to give more examples.

Suffix Meaning Examples(adjectives) -ical having the quality of medical, electrical, grammatical, practical -able having the ability of believable, acceptable, reasonable, enjoyable -ous like, full of adventurous, dangerous, prosperous, conscious -ful characterized by joyful, helpful, useful, mouthful, handful -less without useless, careless, helpless, hopeless, cloudless 【设计说明】复习以前所学的构词法知识，激活学生对后缀的相关记忆，以旧带新，有助于提高学习效率。

Step 2 Lead-in

1. Ask students to compare the following two groups of words.（PPT page 5，鼠标点击，逐条显示）

Group 1: house, milk, driver, dog, paper

Group 2: revision, preparation, decision, difference, arrangement

Ask students to consider the following questions:

(1) Which part of speech is each of the following words?

(2) What are the similarities and the differences between the two groups?

Answers

(1) They are all nouns.

The words in Group 1 refer to physical things and those in Group 2 refer