人教 版高中英语选修8Unit3 Inventors and inventions 过去分词课件 （共23张）

课件23张PPT。Discovering useful structuresUnit 3The Past ParticipleRead the sentences from the reading passage and rewrite the sentences, especially the underlined parts.1. There only seemed to be powders designed
to kill snakes.
There only seemed to be powders which are
designed to kill snakes.2. Prepared with some research findings, I decided on three possible approaches. As I was prepared with some research findings, I decided on three possible approaches. 3. But once picked up, they tried to bite me.4. But monitored carefully, the snakes proved
to be no trouble.But once they were picked up, they tried to bite me.But as they were monitored carefully, the snakes proved to be no trouble.一、过去分词的定义 动词的-ed形式即过去分词，是由动词的过去分词构成，一般只有一种形式。?
二、过去分词的语法作用? 过去分词一方面具有动词的性质，另一方面也相当于一个形容词或副词，在句中可以作表语、定语、状语和补足语。 The review of the past participle1) 作定语：??? ?? ?单个过去分词作定语通常放在所修饰的名词之前；过去分词短语作定语通常放?在?所修饰的名词之后, ?，其意义相当于一个定语从句。如：
? A?broken?cup?is?lying?on?the?ground.
Is?it?a?letter?written?in?pen? ? ?提醒：过去分词作表语不同于被动语态，过去分词作表语表示主语的状态，被动语态则表示被动的动作。 2) 作表语：过去分词通常在系动词后面作表语，相当于形容词，多表示主语的心理感觉或所处的状态。 ?
? She?was?excited?at?the?news. ??
? The?teacher?looks?very?pleased.The road is covered with fallen leaves. (表状态）
The road is covered by the fallen leaves. (表动作) 3). 作宾语补足语
过去分词（短语）在感官动词和使役动词等之后作宾语补足语，这些词语有： have (让，使) keep (使处于某状态)
get (使得) see hear find feel
leave (使处于某状态) make want
start notice observe
watch set (使处于某状态)The work left him exhausted.
I don’t want my name linked with him.(2)过去分词(短语)在使役动词get或have之后
作宾语补足语，表示的动作往往是由别人
完成的。如：
I had my car repaired. (别人修的)
I had my hair cut. (别人给我理的)
We must get the television set repaired.
(让别人修理)三、过去分词与现在分词的区别两者的区别主要表现在语态和时间概念上。
在语态上，现在分词表示主动意思，过去分词表示被动意思；在时间上，现在分词表示动作政治进行，过去分词则表示动作的完成。比较：
What he said was very touching. (主动)
I was touched by the sight. (被动)
the rising sun 正在生起的太阳
the risen sun 升起了的太阳 1. 考试成绩令人失望。
2. 他对考试成绩感到失望。
3. 上周我听见这首歌被唱了好几次。The result of the test is disappointing．He felt disappointed in the result of the test.小试牛刀I heard the song sung several times last week. 典型例题1. The managers discussed the plan that they
would like to see ____ the next year.
A. carry out B. carrying out
C. carried out D. to carry out
解析：此考题的主句是：The managers discussed the plan， 检测点在其后的定语从句中，在 这个定语从句里，they 是其主语，would like to see 是其复合谓语，that 修饰的是先行词 the plan，同时 that 也是 see 的宾语，the plan 是被执行、被实施的，只有过去分词可以表示被 动，故选 C。 C2. The computer center, _____ last year, is
very popular among the students.
A. open C. having opened
B. opening D. opened
解析： 句子中 computer center与open 之间为被动关系。 此外 open 作及物动词时强调动作，不侧重状态，故不用形容词性的 open。B、C 为现在 分词，不符合题意。故选D 。DFill in each blank with the correct verb form.1. English is a language _______ (speak) all
around the world and is the ________ (work) language of most international organization.
2. The problem _________ (discuss) now is very important.
3. How to feel a ________ (grow) population is a
problem that is _______(trouble) many people.
4. He found a magazine ______ (mark) with the
owner’s name ____ (lie) on the desk with the
back cover ____ (tear) off.
5. There was a terrible noise _______ (follow) a
sudden burst of light. spokenworkingbeing discussedgrowingtroublingmarkedlyingtornfollowingOne?morning Mr.?Read?is?reading?in?the?
library.?He?is?an?English?teacher?_____?(love)?
by?his?students.?What’s?the?language?
_______(speak)?in?his?country, do?you?know??
English!?He?often?reads?in?the?school?library,?
one?of?the?houses?______(build)?last?year.?The?
______ (rise)?sun?is?shining.?Suddenly,?the?
window?is______?(break)?.?“What’s?the?matter?”?Mr.?Read?looks?out?of?the?window,?and?a?
boy _______?(dress)?in?white?is?there.?“Sorry,?
sir?!” Complete the passage in the correct form of
each given word.lovedspokenbuiltrisenbrokendressedThe?boy?has?a?______ (worry)?expression?on his face.?“My?father?will?come?and?repair?
it”.?“Oh, don’t?worry. Please?come?upstairs,?
OK?”?“All?right”.?When?the?boy?comes?up,?and?so?comes?his?father,?a ________ (grow)?
man.?A?few?minutes?later,?all?the?things?are?
_______(do).?The?library?is?now?_______
(close). Mr.?Read?goes?home?and?says?
goodbye?to?the?boy?and?his?father. ?worriedgrowndoneclosed1.突然出现一个穿绿衣的女子。
Suddenly there appeared a young woman dressed in green.?
2.老师们上演的戏很成功。
The play put on by the teachers was a big success.
3.他没有注意到她脸上惊讶的表情。 He didn’t notice the surprised look on her face. Translate the sentences into Chinese.4. 明天我要理发。 I’ll have my hair cut tomorrow. 高考链接 Claire had luggage _____ an hour before her
plane left. (2011陕西)
A. check B. checking
C. to check D. checked2. Even the best writers find themselves _____
for words. (2011浙江)
A. lose B. lost
C. to lose D. having lost BD 3. To learn English well, we should find
opportunities to hear English ____ as much
as we can. （江苏卷）
A. speak B. speaking
C. spoken D. to speak4. We finished the run in less than half the time
____. （江西卷）
A. allowing B. to allow
C. allowed D. allowsCC5. Can those ____ at the back of the classroom hear me? （福建卷）
A. seat B. sit C. seated D. sat6. The trees _____ in the storm have been moved
off the road. （湖南卷）
A. being blown down B. blown down
C. blowing down D. to blow downCB7. It is one of the funniest things ______ on the
Internet so far this year. （浙江卷）
A. finding B. being found
C. to find D. found
8. (2013北京) When we saw the road _____ with snow, we decided to spend the holiday at home.
A. block B. to block
C. blocking D. blockedDD9. (2013福建) Anyone, once ______ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested
C. tested D. to test
10. (2013江苏) Shortly after suffering from a massive earthquake and _______ to ruins, the city took on a new look.
A. reducing B. reduced
C. being reduced D. having reducedCC1. Revise the grammar focus.
2. Finish the exercises 2-5 on Page 24.
3. Finish the exercises on Page 65 in Workbook.Homework