资源简介

(共11张PPT)
Period 3 Discovering Useful Structures
History and traditions unit
Express your feelings and describe situations
be
go
do
have
make
know
come
动词的三种形式(现在式、过去式和过去分词)
was/were
went
did
had
made
knew
came
been
gone
done
had
made
known
come
the past participle
past tense
room form
1.an honored guest
the fallen leaves
presentation
当过去分词是复合形式，一般放在被修饰词前面作前置定语
V-ed 作____前置_定语
单个的过去分词作定语放在被修饰的名词_____前面___，表示__被动____和___完成___。
a. It came from the river polluted
by the dirty water.
b. It came from the river which was polluted by the dirty water.
，过去分词放在后面，作后置定语，相当于一个定语从句
4 Rewrite the sentences with past participles as the attribute.
(1) Loch Ness was surrounded by beautiful natural landscape, which made it look amazing.
___________________________________________________________
Loch Ness surrounded by beautiful natural landscape looks amazing.
production
(3) The family's ancestors once attended to soldiers who were wounded in the First World War.
_____________________________________________________________________
The family' s ancestors once attended to wounded soldiers in the First World War.
4 Rewrite the sentences with past participles as the attribute.
production
如果被修饰的词是由every/some/any/no + thing/body/one所构成的复合代词或指示代词those等时，即使一个单一的分词作形容词用，也要放在被修饰词的后面。 例如：
Nothing reported ( in the newspaper) interested him.
注意:
过去分词与它相关联的名词时是被动关系
单个分词作名词的定语时，其位置在名词前；
分词以短语形式出现则其位置在名词后
后置定语：过去分词短语作定语时位于被修饰词之后
前置定语：单个的过去分词作定语一般前置
当过去分词是复合形式，一般放在被修饰词前面作前置定语
boiling water
boiled water
the changing world
the changed world
ing 与ed 作定语的区别
正在沸腾的水
已经烧开的水
正在发生变化的世界
已经变化了的世界
V-ing表动作正在进行， V-ed表动作已经完成
4. The computer centre, ___ last year, is very popular A. open B. opening C. having opened D. opened
5. The textbooks written for English as a foreign language came out in the 16th century.
A. having taught B. to be taught
C. being taught D. teaching

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