Using LanguageⅠ国家获奖教案

Word Formation Teaching aim: The students get to know the basic rules of word-formation. Teaching important point Get the students to learn and understand the commom affixes about derivation. Teaching difficult point Get the students to master and apply the affixes about derivation. Teaching procedures Step I Lead in Ask students:

Hello, everyone.

Do you often meet many new words when reading English? Do you have much trouble trying to remember English words? Today let’s learn about the rules of word-formation. Step II Presentation (1) 转化法（conversion）

不添加任何成分，不

改

变

词性，把一个单词由一种词类转用为另一种词类的

方法。

1. 名

词－动

词(n - v)

b u t t o n ( 纽

扣

) – t o

b u t t o n (扣纽扣)

2. 形容词－动词(adj-v)

correct(正确的) -- to correct (改

正)

3. 动词－名词(v-n)

to feed (喂)--feed(一顿，一餐)

4. 形容词－名词(adj-n)

native(本地的)--native(本地人)

5. 副词－动词（adv-v）

up (在上)--to up(举起，抬高) (2)合成法(compounding)

把两个或两个以上的词组成一个新词叫合成法。

1. 合成名词

note + book

notebook(笔记本)

class + room

classroom(教室)

2. 合成形容词

life-long（终生的）

wide-open（张大的，展开的）

3. 合成动词

under + line

underline（在下面划线）

white + wash

whitewash（粉刷）

(3)派生法(Derivation)

由词根附加前缀后缀构成新词的方法。由派生法产生的新词称之为派生词

（derivations）。派生法产生的词汇是英语词汇的主体。

1. 加前缀

re + unite

reuite(再联合)

dis + honest

dishonest(不诚实的)

2. 加后缀

farm + er

farmer(农民)

care + ful

careful (仔细的) 3. 加前后缀

un + friend + ly

unfriendly（不友好的）

il + legal + ly

illegally(不合法的)

Step III

Learn affixes Prefixes 1) 纯否定前缀

dis-

dishonest, dislike in-, -im

incapable, inability, impossible,immoral non-

non-stop, non-smoker

mis-

misunderstand, mislead un-

unable, unemployment 2) 表示时间，序列关系的前缀

re-

表示“再一次，重新”

retell, rewrite 3) 表示变换词类作用的前缀

en-

endanger , enable, enrich 4) 表示"千，千分子一”

kilo-

kilometer kilogram 5) 表示"许多，复，多数”

multi-

multicultural

multichannel

Suffixes 1.名词后缀

(1) 具有某种职业或动作的人

1) -an, -ain

表示“……地方的人，精通……的人”

American, historian

2) -er/or 表示“从事某种职业的人, 某地区，地方的人"

observer, Londoner; visitor, translator

3) -ee 表示"动作承受者"

employee,

examinee

2. 形容词后缀

1) -able, -ible

movable, comfortable, visible, responsible

2) -al

natural, additional, educational

3) -ish

foolish, selfish, childish

4) -ive

active, impressive, decisive

5) -less 表“无……” homeless, harmless

6) -ful, -y 表“有……；多……”

hopeful, stormy 3. 动词后缀

1) -ize, -ise 表示“做成，变成，……化”

modernize, apologize, realize

2) -en 表示”使成为，引起，使有”

weaken, soften, enlarge, encourage

3) -fy, -ify 表示“使……化, 使成”

beautify, purify, intensify加强, signify重要

4. 副词后缀

1) -ly

possibly, swiftly, simply

2) -ward, -wards downward, inwards, upward Step IV Practice and consolidation 用括号内所给单词的正确形式完成下列句子。

1. It is ________(possible) for a kid to get up so early. 2. We should be _______(friend) to our environment. 3. The beautiful city attracts a lot of _______(tour) from all over the world every year. 4. There is a large _________(amuse) park in my hometown. 5. Many people became _______(home) after the earthquake.