Unit 3 Topic 1 语法总结练习和单元辨析
时态:是动词的一种形式,不同的时态用以表示不同的时间与方式。
是表示行为、动作、状态在各种时间条件下的动词形式,在英语中有16种时态。
语态:是动词的一种形式,表示的是句子中主语和谓语动词的关系。
主动语态:主语是动作的发出者(执行者);
被动语态:主语是动作的承受着。
注意:只有及物动词才能用于被动语态。
e.g. 许多人讲英语。
Many people speak English. _________语态
English is spoken by many people. ____________语态
一般现在时的被动语态的构成:
am
is + 及物动词的过去分词 +(by…)
are
注意:此处be动词(am, is, are)不翻译,作助动词。(现在进行时中be动词也作助动词)
助动词用来构成时态和语态。 助动词具有语法意义,但没有词汇意义,不可单独作谓语。
助动词有:do/does/did/will/have; be;
一般现在时的被动语态的基本句式
句式 基本形式
肯定句 am 主语 + is + 及物动词的过去分词 +(by…)+ 其他 are
否定句 am 主语 + is + not + 及物动词的过去分词 +(by…)+ 其他 are
一般疑问句 Am Is + 主语 + 及物动词的过去分词 +(by…) + 其他 Are
肯定句: Football is played (by people ) all over the world.
足球运动遍及全世界。
否定句: Football is not played ( by people) all over the world.
足球运动没有遍及全世界。
一般疑问句: Is football played ( by people) all over the world?
足球运动遍及全世界吗?
肯定回答: Yes, it is . 是,它是。
否定回答: No, it isn’t. 不是,它不是。
被动语态的基本用法:
1).需要强调动作的承受者。
e.g. The Great Wall is enjoyed by millions of people all over the world.
长城为全世界千百万人所喜爱。
2).不知道或没必要指出动作的执行者。
e.g. My bike is stolen.
我的自行车被偷了。
Mr. Wang is invited to the meeting today.
今天王先生被邀请参加会议。
3).说话人需要强调客观情况。
e.g. It’s said that…+句子
据说….
It’s reported that…+句子
据报道….
主动句转化为被动句:
步骤:1). 把原主动句中的宾语转化为被动句的主语。
2). 把谓语动词改为被动形式即“be +过去分词”
3). 原主动句中主语如需要就放在by后面,以宾格形式出现(因为by是介词),以指明做事的人或物,如没必要,可以省略。
4). 其他成分(定语,状语)不变。
① 主动句: They make computer.
(主语) (谓语) (宾语)
① ② ③
Computer are made by them
(主语) (谓语) (宾语)
② 主动句: The naughty boy plays basketball every day.
(定语) (主语) (谓语) (宾语) (时间状语)
① ② ④ ③ ④
Basketball is played by the naughty boy every day.
(主语) (谓语) (定语) (宾语) (时间状语)
将下列句子改为被动语态:
Many people use puter ______ _______ _______ many people.
A lot of foreigners visit China. China _______ _______ _______ a lot of foreigners.
The factory makes bicycles. Bicycle _____ _______ ________ the factory.
We grow rice in the south. Rice ______ ________ _____ the south.
Our teacher asks us to study hard.
________ _________ _________ ________ ________ hard ________ our teacher.
Jim doesn’t know Beijing Opera. Beijing Opera _______ _________ ________ Jim.
Where do they often plant trees Where ________ trees often _______
8. Does Lucy like this present _______ this present ________ _________ lucy
单项选择:
As we know, English __________ as the first language in America.
A. was spoken B. is spoken C. speak
2. ---- Do you often clean your classroom
---- Yes, our classroom_______ every day.
A. clean B. cleans C. is cleaned
3. People learn English because it ________ widely _______ in the world.
A. is, used B. is, using C. does, used
4. --- Beijing Opera sounds beautiful.
--- So it is, and it ________ by visitors from all over the world.
A. is enjoyable B. is enjoyed C. are enjoyed
5. ---- Mum, can I go swimming now
---- Well, you may go after your homework_________.
A. has finished B. will finish C. is finished
6. Cotton _________ in the southeast of China.
A. plants B. is planted C. is grown
将下列句子改为被动语态:
Grandpa waters the flowers every morning.
The flowers ______ ________ _______ grandpa every morning.
--- Does Jim clean his room every day ----- Yes, he does.
--- ______ Jim’s room_______ by_______ every day ----- Yes ,it ______.
He allows us to visit the park.
_____ _______ ______to ______ the park.
They give me some flowers on Teachers’ Day.
_______ ________ _______ some flowers on Teachers’ Day.
Some flowers _______ ________ ________ me on Teachers’ Day.
Large population causes many problem in the world.
Many problems ________ ______ _______large population in the world.
(二)单元易混淆考点辨析
1.some day / one day
①总有一天你会明白的。______________________________
②一天,他在街上遇到一位老朋友。______________________________
2.wish / hope
①我祝你健康、幸福。______________________________
②我希望成为一个有用的人。 ______________________________
③我希望我的父母和我一起去。 ______________________________
④ 我希望你在这里。 ______________________________
3.divide / separate
①孩子们在他们之间把钱分了。 ______________________________
② 钱被分成了两半。 ______________________________
③她不想和他分开。 ______________________________
4.try to do sth. try doing sth.
①他努力爬上那棵树。______________________________
②他试着爬那棵树。______________________________