内容正文:
第07讲 一般现在时态的被动语态
1.被动语态的含义
在英语中有两种语态,即主动语态和被动语态
主动语态:主语是动作的执行者
被动语态:主语是动作的承受着,即主语是行为、动作的对象。
2.被动语态的构成
被动语态由“助动词be+及物动词的过去分词”构成。助动词be有人称、时态和数的变化。
3.被动语态的用法
当说话者不知道动作的执行者或没有必要指出动作的执行者时,只需要强调动作的承受者,可以使用被动语态。需要在被动语态中指出动作的执行者时可用介词by引出。
4.一般现在时的被动语态
①一般现在时的被动语态的构成:am/is/are+及物动词的过去分词。
This knife is made of wood and metal.这把刀是用木头和金属制造的。
These bananas are produced in Hainan.这些香蕉产于海南。
②一般现在时的主动语态改写成被动语态的方法:将主动句的宾语变成主语,将主动句的谓语变成“am/is/are+及物动词的过去分词”,将主动句的主语变成被动句中by的宾语(或省略)。
主动句:主语+谓语+宾语
被动句:主语+am/i/are+及物动词的过去分词+by+宾语
Many middle school students play football.
主语 谓语 宾语
Football is played by many middle school students.
许多中学生踢足球。
口诀:宾变主,主变宾,谓变be done 时不变
注意:如果主动句中有两个宾语(直接宾语和间接宾语),可以把其中任意一个变成被动句的主语。
My teacher gives me a lot of books.(主动语态)我的老师给我许多书。
主语 谓语 间宾 直宾
被动语态:(1)I am given a lot of books by my teacher.
(2)A lot of books are given to me by my teacher.
5.一般现在时被动语态的句式变化
肯定句:主语+am/is/are +及物动词的过去分词+(by...)+其他
Eg:The kite is made by Mary.这个风筝是玛丽做的。
否定句:主语+am/is/are +not+及物动词的过去分词+(by...)+其他
Eg:The kite isn’t made by Mary.这个风筝不是玛丽做的。
一般疑问句:Am/Is/Are+主语+及物动词的过去分词+(by...)+其他?
肯定回答:Yes,主语+am/is/are.
否定回答:No,主语+isn’t/aren’t.或 No, I’m not.
Eg:Is the kite made by Mary?这个风筝是玛丽做的吗?
Yes, it is. / No,it isn’t.
特殊疑问句:特殊疑问词+一般疑问句?
一、单项选择
1.—May I watch Running Man 3 this Friday evening, mom?
—Of course, if your homework ________ by then.
A.will be finished B.finishes C.will finish D.is finished
2.The letter ________ in French. I can’t read it.
A.write B.will write C.is written D.will be written
3.— Could I ride an electric bicycle to school, Mr. Wang?
— No, you ________. Students under the age of 16 ________ to ride electric bicycles.
A.can’t;don’t allow B.can’t;aren’t allowed C.couldn’t;shouldn’t allow
4.Look at the picture. The top ten Most-Improved students ________ in it.
A.will be listed B.list C.will list D.are listed
5.More and more hills ________ with trees in my hometown.
A.cover B.covered C.are covering D.are covered
6.A lot of birds ________ i