• He took good care of his little brother yesterday.
His little brother was taken good care of by him yesterday.
• We cleaned our classroom just now.
Our classroom was cleaned by us just now.
?
1876/Bell
1976
1879/Edison
American scientists
A: What __is____ the… ___m_a_d_e_ ____o_f__?
B: It is made of ....
A: What __is___it _u_s_e_d____for?
B: It’s used for ….
This song is not liked by young people. .
一般疑问句 be+主语+过去分词+（by…）
Is Chinese used only in China?
特殊疑问句 疑问词+be +主语+过去分词+（by…）
A: What was it made of? B: It was made of bamboo.
动词过去式过去分词的构成
workFinishPlayLikeDie – CryCarry-
shopdiggrow-runeat speakdrive--
Remember the past forms and past participle forms:
A---A---A
cut---cut---cut cost---cost---cost put---put---put read---read---read Hit –hit –hit Hurt –hurt –hurt Set –set –set Shut –shut –shut Bet—bet—bet
These machines are made in Beijing.
He looked after the little baby yesterday.
主
谓 宾(受动者)
The little baby was looked after by him yesterday .
2. They bought ten computers last term．
• They used this room for resting.
This room was used for restiபைடு நூலகம்g by them.
被动语态的句子是以“be动词+过去分词”的形 式来表达，如果强调动作或行为的执行者时，句 子后面需接by…，意为“被（由）……”。
1 被动语态的句型
肯 定 句 主语+be+过去分词+（by…）
Trees are planted by people in spring .
否 定 句 主语+be not+过去分词+（by…）
A---B---B
bring---brought---brought think---thought---thought lend---lent---lent spend---spent---spent Send –sent----sent Build ---built----built
What’s it used for? What’s it made of? When was it invented? Who was it invented by?
Ten computers were bought (by them) last term.
：
一般过去时: S+was/were +过去分
词
• They built the tall building last year.
The tall building was built by them last year.
A: When_w__a_s__it__in_v_e_n_t_e_d__?
B: It was invented in_________.
A: Who___w_a_s____it __in__v_e_n_te_d___by?
B: It was invented by_______.
一、被动语构成
时态通过be表 现出来
二、主动语态变为被动语态
His brother washes bowls every day
主
谓
宾(受动者)
Bowls are washed by his brother every day.
1.They make shoes in that factory. 主语+及物动词+宾语
Shoes are made factory.
A---A---B
beat---beat---beaten
A---B---A
come---came---come become---became---become run---ran---run
A---B---C
begin---began---begun swim---swam---swum sing---sang---sung write---wrote---written speak---spoke---spoken choose---chose---chosen eat---ate—eaten see-saw—seen
(by them) in that
一般现在时：S(主语） + am/is /are +过去分 词
• They play football on Sunday.
Football is played by them on Sunday.
• Lucy does the homework in the evening.
The homework is done by Lucy in the evening.
• They often use computers in class.
Computers are often used by them in class.
• We make these machines in Beijing.