Unit 3 Tomorrow's world
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
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.
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.
(2) The words in Group 1 refer to physical things and those in Group 2 refer to ideas, actions and qualities.
2. Tell students that the nouns in Group 2 are called abstract nouns. Ask students to read the definition of abstract nouns on page 46.
3. Ask students to think of more abstract nouns. And show them the following words as examples:
revision, direction, decision, preparation, satisfaction, argument, judgement, disappointment, excitement, civilization, dependence, difference, assistance, pleasure, loyalty, cruelty, action, failure, carelessness, happiness
【设计说明】通过分析、对比，引导学生自己发现抽象名词的特点，即不可为人的五官感知。随后在明确抽象名词的定义后，用实例加深学生的印象。
Step 3 Ways to form abstract nouns from verbs and adjectives
1. Ask students to categorize the words on the black board according to the suffixes. Then ask students to see what words they are and which part of speech they are if the suffixes are removed using the following form.
Nouns Original words Part of speech Suffix
revision revise verb -sion
decision decide verb -sion
preparation prepare verb -tion
satisfaction satisfy verb -tion
argument argue verb -ment
judgement judge verb -ment
dependence depend verb -ence
assistance assist verb -ence
difference differ verb -ence
pleasure please verb -ure
failure fail verb -ure
carelessness careless adjective -ness
happiness happy adjective -ness
civilization civil adjective -tion
loyalty loyal adjective -ty
cruelty, cruel adjective -ty
2. Ask students to read the instructions on page 46. Ask them to compare the words on the screen with the words in the tables.
3. Tell students that most abstract nouns are uncountable, only a few of them are countable. Ask them to read the following examples:
hope→a hope; idea→an idea; situation→a situation; knowledge→a knowledge of…
4. Ask students to do the exercise on page 46 individually.
Answers
(1) developmemt (2) popularity (3) failure (4) connection
(5) improvements (6) presentation (7) achievement (8) admiration
【设计说明】鼓励学生自己进行归纳、整理，得出动词或形容词后加后缀构成名词的规律，最后以填空练习巩固所学内容。
Step 4 Words related to computers
1. Ask students to read carefully the picture on page 47 and ask students to answer the following questions:
(1) Can you name the different parts of the computer?
(2) Can you describe their functions?
Answers
Part Function
floppy disc a flat piece of plastic for storing information
USB disc a portable, pocket-sized disk that can store a lot more information than a floppy disk
CD-ROM/DVD-ROM a CD or a DVD on which large amounts of information, sound and pictures can be stored
keyboard a set of keys for typing
printer a machine that puts the words and pictures onto paper
mouse a small device moved by hand to move the cursor on a computer screen
mouse mat a small square of plastic that is the best kind of surface on which to use a computer mouse
hard drive a disk that can store more information than a floppy or USB disk
monitor/LCD Monitor a screen that shows information from a computer
screen/LCD screen a part where you see the words and pictures
speaker a part of the computer where the sound comes out
2. Ask students to read the instructions and complete the exercises on page 47.
Answers
(1) keyboard (2) mouse (3) data (4) floppy disks
(5) CD-ROMs (6) CPU (7) connect (8) e-mails
(9) information (10) Web
【设计说明】通过图片，帮助学生学习电脑各部件的名称及相关作用，用缺词填空的形式进行巩固。
Step 5 Summary（
Make a summary about what have been learned in this period.
【设计说明】通过小结帮助学生整理、归纳课上所学内容，提高学习效率。
Step 6 Homework
1. Review what you have learned in this lesson.
2. Try to find out more words related to computers and Internet.
【设计说明】通过家庭作业再次巩固所学内容。同时，鼓励学生利用网络等资源了解更多有关电脑网络的词汇。
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