高中英语 人教版 必修4 Unit 5 Theme parks Part 6 Grammar 构词法课件（23张）

课件23张PPT。1.合成法。
由两个或更多的词合成一个词, 有的直接写在一起, 有的用连字符“—”, 还有的由分开的两个词构成。构成的方式及例词如下：
(1)合成名词
⑵ 合成形容词
⑶ 合成动词
⑷ 合成副词2.派生法。
词的派生是由词根加上词缀构成新词。词的前缀主要是改变词义, 词的的后缀主要是改变词性。⑴ 常见的否定前缀
⑵ 其他意义的前缀⑶词的后缀
见资料书P763. 截短法(缩略法)。
截短法, 即将单词缩写，词义和词性保持不变，主要有截头、去尾、截头去尾等形式。
截头
telephone → phone aero-plane → plane
minibus → bus
去尾
mathematics →math co-operate → co-op
examination →exam kilogram → kilo
laboratory → lab taxicab → taxi截头去尾
influenza →flu refrigerator → fridge
prescription → script4.混合法(混成法)。
混合法, 即将两个词混合或各取一部分紧缩而成一个新词。后半部分表示主体, 前半部分表示属性。
news broadcast →newscast新闻广播
television broadcast →telecast电视播送
smoke and fog → smog烟雾
helicopter airport →heliport直升飞机场5.首尾字母缩略法。
首尾字母缩略法, 即用单词首尾字母组成一个新词。读音主要有两种形式，即各字母分别读音; 作为一个单词读音。
very important person → VIP(读字母音)重要人物; 大人物
television → TV(读字母音)电视
Testing of English as a Foreign Language → TOEFL托福un come
tri agree
dis ordinary
en build
extra friendly
sub legal
il cycle
in rich
mis way
non work
re understand
over smoker 连
线
成
词 key wide
side out
net board
news ware
tax paper
shop work
web site
note keeper
through road
hard payer
team work
nation book 二、单句填空
These gold rings are ________while those
glass ones are _________(value).
2. We all like the talk given by the famous
scientist yesterday. It is__________ (encourage)
3. Mary’s daughter is old enough to ______
and ________herself. (dress)valuable valuelessencouragingdressundress4.____________(self)is a virtue of the Chinese people.
5. He lost his keys. He is _________. I’m sure he will be ________with everything from now on. (care)
6. At the beginning the Blacks in the US had no right to vote. It was ________ (fair)Unselfishnesscareless carefulunfair7. That plan was a waste of money. We
__________(agree) with it.
8. After watching the performance, they were so excited that none of them fell _________
(sleep) until one o’clock..
9. It is _________(legal) to hunt rare animals in China.disagreedasleepillegal110. My father used to smoke a lot, but he is a ____________(smoke) now.
11. His poor eyesight was a (an)____________
(convenient) to him.
12. What is the_________ (post) for this letter?non-smokerinconveniencepostage13. At last he made a big ___________
(decide) and bought thirty-seven cards.
14. It was __________(child) of you to believe him.childishdecision三、翻译句子
整个赛季他平均每场比赛得分约二十分。
(average)
_____________________________________
___________
2. 她通过了驾驶考试并取得了执照。(permit)
_____________________________________
___________
He averaged about 20 points a game for the
entire season.She has passed the driving test and got a
permit.3. 洪水使成千上万人无家可归。(home)
_______________________________________
4. 这张三条腿的凳子需要维修。(leg)
_______________________________________
5. 他梦想为NBA效力。(dream)
_______________________________________
He dreamed of playing for the NBA.The flood made thousands of people homeless.The three-legged stool needs repairing.