Unit 5 Theme parks Grammar 课件（共16张PPT）

(共16张PPT)
roller coaster, whichever, whatever,
free-fall, wherever, southeastern, indoor, outdoor, craftsmen, old-fashioned,
steam-engine, world-famous, horseback
Read the compound words from the reading passage.
英语构词法 (Word Formation)
英语一些常用的构词法:
1. 合成 (Compounding)
2. 转化 (Conversion)
3. 派生 (Derivation)
1. 合成(Compounding)
由两个或更多的词合成一个词，有的用连字符号“-”连接，有的直接连写 在一起。
wood(木)＋cut(刻)＝woodcut(木刻)
man(人)＋kind(种类)＝mankind(人类)
air(空气，空中)＋sick (恶心的，晕的)
＝airsick (晕机的)
merry-go-round 旋转木马
up-to-date 最新的
life-size 与真人一般大
2. 转化(Conversion)
由一种词类转换成另一种词类。
（即一般拼写不变，但是词类发生了变化，有时发音也变化）

water n. 水 ---- water v. 浇水
dirty adj. 脏的 ---- dirty v. 弄脏

He went in and sat down.
The army downed a plane.
3.派生(Derivation)
由一个词根加上前缀或后缀构成另一个词。

1)后缀(suffix)
①名词后缀
-or actor sailor
-ist scientist
-ment achievement movement
-(a)tion preparation exception
-y difficulty discovery
②形容词后缀
-ful useful cheerful
-able comfortable enjoyable
-ed manned cultured
-less careless fearless
-ive active decisive
-an European Indian
③动词后缀
-ize realize modernize
-en widen strengthen
④副词后缀
-ly really extremely
-ward backward eastward
⑤数词后缀
-teen fourteen fifteen
-ty forty fifty
-th ninth twelfth
2)前缀(prefix)
一般不造成词类的转变，只是引起意思的变化。
un- (不，或做相反动作)
unhappy undo
im- (不) impossible impolite
re- (重新) retell rewrite
mis- (错误的) misunderstand
个别前缀会引起词类的变化
en- endanger enlarge
a- asleep awake
We shall carpet the room.
2. A group of policemen were stationed in
the area after the explosion.
3. The car backed through the gate of the hall.

4. They decided to back his plan.
5. It was late at night that they topped the high mountain.
6. I cannot really picture such a kind man as a murderer.
（v. 铺地毯）
（v. 驻扎）
（v. 倒退、倒车）
(v. 支持)
（v. 登顶、到达）
（v. 想象）
一、说出标颜色单词的词性及意义。
7. They had to clear the snow from the street.

8. That African country has been freed from economic crisis.
9. Tian An Men Square is frequented by people from all walks of life.
10. You have wronged him by saying that he was dishonest.
（v. 清扫）
（v. 解脱、恢复）
（v. 经常参观、光顾）
（v. 冤枉）
The pilot always had a sense of ______. He explained what had happened in a ________ manner to make passengers feel better. (humorous; humor)
2. I ______ can’t understand the _______
French he spoke.? (simple; simply)
3.The work is important but rather boring. It needs _______, so you must be very ______. (patient; patience)
二、根据句义选择正确的单词填空。
humor
humorous
simply
simple
patience
patient
That man was ________ (小心的，仔细的) enough not to tell the manager that he would not do the job.
2.The soldier died for saving the child, so his ________ (死亡) is heavier than Mount Tai.
3. The child looked ________ (sad) at his brother who was badly wounded.
Practice
careful
death
sadly
4. The three _______ (leg) chair isn’t suitable for a young child. He may fall off.
5. Stephenson became the ________ (lead) railway engineer in the world.
6. When the teacher praised him for working out the maths problem, Jack looked _______ (proud) about at his classmates.
legged
leading
proudly
7. To everyone’s _______ (surprise) , the girl finished the job quite well.
8. He is an expert at physics. We all call
him a ________(物理学家) .
9. — What are you doing here?
— Oh, my teacher asked me to write a passage about __________ (600, words) in English.
— You can write __________ (600, words) passage in English?
surprise
physicist
600 words
a 600-word
Homework

1. Finish the exercises in Discovering useful structures.
2. Finish the exercises in Using structures in Workbook.