unit 2 被动语态.ppt
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6.Now people can use computers to help them.
It was reported that her mother died of SARS. 众所周知… … It is well known that … 据推测说… … It is supposed that …
四、汉语中含有“被”、“由”等词时。 例如： Tina is asked to come by Paul． Tina是被Paul叫来的。
Grammar The passive voice
被动语态基本用法
当句子的主语是动作的执行者时， 谓语的形式是主动语态。
当句子的主语是动作的承受者时， 谓语要用被动语态。
构成：助动词be+过去分词，
时态通过be表现出来。
1.规则动词的过去分词：
1)一般情况在动词原形后加-ed
2)以不发音e结尾的加-d 3)以辅音加y结尾的，去y变i加-ed
二、不易找到或根本就不可能找到动作的 执行者时。例如：
My bike was stolen．我的自行车被盗了。
三、汉语中含有“据说”、“据悉”、“有 人说”、“大家说”等时。例如：
It is said that one day he climbed to the top of a house and ……
invent
改为被动语态
He plants
主
谓
trees in spring.
宾(受动者)
Trees are planted byhim in spring.
Tom will clean the room tomorrow.
主
谓
宾(受动者)
The room will be cleaned by Tom tomorrow.
4)以重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加-ed
watch---watched practice---practiced
study---studied
stop---stopped
2.不规则动词的过去分词：
am
have
do done
is been
had write written
一般过去 V-ed 时
was/were +Vpp
一般将来 will +V(原形) will+ be +Vpp 时
含情态动 情态动词+ 情态动词+ be
词
V(原形)Байду номын сангаас
+Vpp
何时使用被动语态呢？
一、行为主体不明确，不必说出或者无法 说出动作的执行者时。例如：
Football is played all over the world．
五、某些句子习惯上用被动语态。例如： He was born in October，1989．
(变被动语态）
1.People use knives for cutting things.
Knives __a_r_e__ _u_s_e_d__ for cutting things.
2.The students clean the windows of their classroom twice a month.
4.I told her to return the book in time.
She __w__a_s_ __t_o_ld___ to return the book in time.
5. His doctor made him have only two meals a day.
He __w_a_s__ _m__a_d_e__ ___t_o___ __h_a_v_e__ only two meals a day.
4.They will finish the work in ten days.
The work will be finished (by them) in ten days. 一般将来时： S+ will+be+过去分词
时态 主动语态 被动语态
一般现在 V(原形)/
时
V(e)s
am/is/are +Vpp
are
has
go gone
For example water watered watered
use
used
used
stop
stopped stopped
study do
studied studied
did
done
ride
rode
ridden
Let’s have a try.
clean
smoke find
His brother washes bowls every
day. 主
谓
宾(受动者)
Bowls are washed byhis brother every day.
1.They make shoes in that factory. 主语+及物动词+宾语
Shoes are made (by them) in that factory. 一般现在时： S(主语）+am/is /are +过去分词
make
build sweep take
buy have sing tell give
finish plant found
made built
swept took bought had sang told gave
play carry found
made built
swept taken bought had sung told given
2. They bought ten computers last term．
Ten computers were bought (by them) last term. 一般过去时：S+was/were +过去分词
3．Amy can take good care of Gina ．
Gina can be taken good care of by Amy. 情态动词： S+ can/may/must/should + be+过去分词
The windows of their classroom__a_re___ _c_le_a_n_e_d_ twice a month.
3.I found the ticket on the floor.
__T__h_e_ _t_ic_k_e_t_ __w_a_s__ _fo_u__n_d_ on the floor.
It was reported that her mother died of SARS. 众所周知… … It is well known that … 据推测说… … It is supposed that …
四、汉语中含有“被”、“由”等词时。 例如： Tina is asked to come by Paul． Tina是被Paul叫来的。
Grammar The passive voice
被动语态基本用法
当句子的主语是动作的执行者时， 谓语的形式是主动语态。
当句子的主语是动作的承受者时， 谓语要用被动语态。
构成：助动词be+过去分词，
时态通过be表现出来。
1.规则动词的过去分词：
1)一般情况在动词原形后加-ed
2)以不发音e结尾的加-d 3)以辅音加y结尾的，去y变i加-ed
二、不易找到或根本就不可能找到动作的 执行者时。例如：
My bike was stolen．我的自行车被盗了。
三、汉语中含有“据说”、“据悉”、“有 人说”、“大家说”等时。例如：
It is said that one day he climbed to the top of a house and ……
invent
改为被动语态
He plants
主
谓
trees in spring.
宾(受动者)
Trees are planted byhim in spring.
Tom will clean the room tomorrow.
主
谓
宾(受动者)
The room will be cleaned by Tom tomorrow.
4)以重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加-ed
watch---watched practice---practiced
study---studied
stop---stopped
2.不规则动词的过去分词：
am
have
do done
is been
had write written
一般过去 V-ed 时
was/were +Vpp
一般将来 will +V(原形) will+ be +Vpp 时
含情态动 情态动词+ 情态动词+ be
词
V(原形)Байду номын сангаас
+Vpp
何时使用被动语态呢？
一、行为主体不明确，不必说出或者无法 说出动作的执行者时。例如：
Football is played all over the world．
五、某些句子习惯上用被动语态。例如： He was born in October，1989．
(变被动语态）
1.People use knives for cutting things.
Knives __a_r_e__ _u_s_e_d__ for cutting things.
2.The students clean the windows of their classroom twice a month.
4.I told her to return the book in time.
She __w__a_s_ __t_o_ld___ to return the book in time.
5. His doctor made him have only two meals a day.
He __w_a_s__ _m__a_d_e__ ___t_o___ __h_a_v_e__ only two meals a day.
4.They will finish the work in ten days.
The work will be finished (by them) in ten days. 一般将来时： S+ will+be+过去分词
时态 主动语态 被动语态
一般现在 V(原形)/
时
V(e)s
am/is/are +Vpp
are
has
go gone
For example water watered watered
use
used
used
stop
stopped stopped
study do
studied studied
did
done
ride
rode
ridden
Let’s have a try.
clean
smoke find
His brother washes bowls every
day. 主
谓
宾(受动者)
Bowls are washed byhis brother every day.
1.They make shoes in that factory. 主语+及物动词+宾语
Shoes are made (by them) in that factory. 一般现在时： S(主语）+am/is /are +过去分词
make
build sweep take
buy have sing tell give
finish plant found
made built
swept took bought had sang told gave
play carry found
made built
swept taken bought had sung told given
2. They bought ten computers last term．
Ten computers were bought (by them) last term. 一般过去时：S+was/were +过去分词
3．Amy can take good care of Gina ．
Gina can be taken good care of by Amy. 情态动词： S+ can/may/must/should + be+过去分词
The windows of their classroom__a_re___ _c_le_a_n_e_d_ twice a month.
3.I found the ticket on the floor.
__T__h_e_ _t_ic_k_e_t_ __w_a_s__ _fo_u__n_d_ on the floor.