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免费下载 Unit1.Great scientists grammar高中必修5 ppt课件免费下载 Unit1.Great scientists grammar高中必修5 ppt课件
必修5 Unit 1
grammar
[例句展示]
仔细观察下列句子中的过去分词的用法。
1. The recovered animals will be released soon.
2. We needed much more qualified workers.
过去分词作定语
3. Paper cuts used for religious purposes are often found in temples.
4. He is a teacher loved by his students.
5. The student dressed in white is my daughter. = The student who is dressed in white is my daughter.
[自我归纳]
1. 过去分词作定语时,表示的动作在________之前发生,已经完成并具有____意义(见句1)。此时,作定语的过去分词一般是由_____动词变来的,因为只有此类动词才有被动意义。
谓语动作
被动
及物
2. 单个的过去分词作定语一般放在被修饰的名词 _____(见句1、句2)。____________ 作定语要放在被修饰的名词后面,作后置定语,表示被动或完成,其作用相当于一个________(见句3、句4、句5)。
之前
过去分词短语
定语从句
[拓展]
1. 不及物动词的过去分词也可作定语,一般作前置定语,不表示被动意义,只强调动作完成。 如:fallen leaves落叶;retired workers退休工人;the risen sun升起的太阳。
2. 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或these等时,即使是单一的过去分词作定语,也要放在被修饰词的后面。如:
There is nothing changed here since I left this town.
3. 过去分词短语有时还可用作非限制性定语,相当于一个非限制性定语从句,前后用逗号分开。如:
Some of them, born and brought up in rural villages, had never seen a train.
[辨析] 过去分词与动词-ing形式作定语时的区别:
动词-ing形式作定语时与所修饰的名词之间是主动关系,表示动作正在进行;而过去分词作定语时,则表示被动或完成意义。如:
Mr Smith, tired of the boring speech, started to read a novel.
The prize of the game show is $30,000 and an all expenses paid vacation to China.
[例句展示] 仔细观察下列句子中的过去分词的用法。
1. The street is lined with small shops.
2. Tom was astonished to see his father.
[自我归纳]
过去分词作表语时,与谓语动词构成____结构,表示主语的性质、特征和____。
过去分词作表语
系表
状态
[辨析]
1. 过去分词作表语时与被动语态的区别:过去分词作表语,主要表示主语的状态和特征,而被动语态则表示动作。如:
The cup was broken by my little sister yesterday.
The library is now closed.
2. 过去分词作表语与动词-ing形式作表语的区别:过去分词作表语表示被动或完成,动词-ing形式作表语表示主动或进行。如:
She was embarrassed because she didn’t know the answer.
Today’s meeting was boring.
3. 有些动词如interest, worry, surprise, frighten等通常用其过去分词形式来说明人的情况,用动词-ing形式来说明物的情况。如:
The book is interesting and I’m interested in it.
[强化训练]
从A、B、C、D中选出最佳选项。
1. The murderer was brought in, with his hands ______ behind his back.
A. being tied B. having tied
C. to be tied D. tied
2. The Emperor’s New Clothes is an ______ text. All of us are ______ about it.
A. exciting; exciting B. excited; excited
C. excited; exciting D. exciting; excited
3. With ______ leaves ______ in the earth every year, the soil becomes richer and richer.
A. falling; burying B. fallen; buried
C. fallen; burying D. falling; buried
4. —I’m very ______ with the dish I cooked. It looks nice and smells delicious.
—Mm. It does have a ______ smell.
A. pleasant; pleased B. pleased; pleased
C. pleasant; pleasant D. pleased; pleasant
5. I have read plenty of books ______ by Lu Xun.
A. written B. wrote
C. writes D. writing
6. His nephew, ______ at sea when he was fifteen, had been his only relative.
A. losing B. loses
C. lost D. being lost
7. They had beef and ______ for supper.
A. smoking fish B. fish smoking
C. fish to smoke D. smoked fish
8. She asked if there was anything _______ for tonight.
A. to plan B. planned C. that plans D. planning
用以下单词的正确形式填空:
worry, interest, arrive, frighten, continue,
concern
1. I’ll be __________ to hear what he has to say.
2. The mayor said that he was ________ about the ________ rise of the water level in the river bed.
interested
worried
continued
3. Recently ________ soldiers are helping
to take the victims to safe areas from
the flood.
4. Most of the newspaper seems to be
__________ with pop stars.
5. He was _________ of going alone into
the empty house.
frightened
concerned
arrived
1. Linda worked for the Minnesota
Manufacturing and Mining Company,
______ as 3M.
A. knowing B. known
C. being known D. to be known
高考链接
B
解析:答案B。此处考查过去分词作后置定语,3M与know之间是被动关系,故用过去分词表示被动。
2. The disc, digitally ________ in the
studio, sounded fantastic at the party that night.
A. recorded B. recording
C. to be recorded D. having recorded
A
解析:答案A。此处考查过去分词作后置定语,disc与record之间是被动关系,故用过去分词表示。
3. Don’t use words, expressions, or
phrases _______ only to people with specific knowledge.
A. being known B. having been known
C. to be known D. known
D
解析:答案D。know与words,expressions,phrases构成动宾关系,故用过去分词表示被动。
4. The flowers _______ sweet in the botanic garden attract the visitors to the beauty of nature.
A. to smell B. smelling
C. smelt D. to be smelt
B
解析:答案B。此处为现在分词作定语,修饰flowers。smell为系动词,不能用于被动语态,相当于which/that smells sweet。