Be动词例句
来源:学生作业帮 编辑:大师作文网作业帮 分类:英语作业 时间:2024/11/13 01:10:32
Be动词例句
e动词的一般现在时有三种形式,即:am,is,are.
1.如果主语是第一人称I(我)时,be动词用am.
如:I am a student.我是一名学生.
I am 还可缩写成I'm.如:
I'm David.我是大卫.
2.如果主语是you (你,你们),they (他们,它们,她们)或名词复数 (两个以上的人或物)时,be动词必须用are.
如:Are you twelve?你是十二岁吗?
Tom and Lily are good friends.汤姆和莉莉是好朋友.
They are at school.他们在学校.
are与主语还可缩写.如:We are= We're,They are =They're,You are = You're.而are与 not可缩写成aren't.
如:They aren't students.他们不是学生.但是am与not不能缩写.
3.如果主语是单数名词、不可数名词或单数第三人称代词(he,she,it)时,be动词用is.
如:My mother is a teacher.我的妈妈是一名老师.
He is a student.他是一名学生.
is也可与主语缩写,如:He is = He's,My mother is = My mother's等.但是This is不可缩写.而is与not可缩写成 isn't.
如:This isn't a book.这不是一本书.
根据以上叙述我们可以把动词的用法以口诀的形式表述出来:
我(I)是am,
你(you)是are,
剩下is留给她(she),他(he),它(it),
两个以上都用are.
[思路分析]
be作助动词用的形式如下:
①am,is,are,was,were
②助动词+be:shall be,will be,can be,etc.
③have/has/had + been(完成时)
④am,is,…being(进行时)
[解题过程]
(1)表达进行时态
句型 be + V-ing…(进行时态)
例:What are you reading?
(你正在阅读什么?)
I am reading a magazine.
(我正在阅读杂志.)
例:He will be taking a walk in the park at this time tomorrow morning.
(明天早晨此时他将会正在公园散步.)
例:She has been teaching English in our school for years.
(她已在我们学校教英语许多年了.)
解说 第一例句是表达现在进行时,第二例句是将来进行时,第三例句是现在完成进行时.
(2)表达被动语态
句型 be +p.p.…(被动语态)
例:English is spoken in both Canada and the United States.
(加拿大和美国都讲英语.)
例:Those keys were found in your drawer.
(那些钥匙是在你的抽屉里找到的.)
例:It can be done much faster in this way.
(这件工作用这个方法可以更加快速地做好.)
1.如果主语是第一人称I(我)时,be动词用am.
如:I am a student.我是一名学生.
I am 还可缩写成I'm.如:
I'm David.我是大卫.
2.如果主语是you (你,你们),they (他们,它们,她们)或名词复数 (两个以上的人或物)时,be动词必须用are.
如:Are you twelve?你是十二岁吗?
Tom and Lily are good friends.汤姆和莉莉是好朋友.
They are at school.他们在学校.
are与主语还可缩写.如:We are= We're,They are =They're,You are = You're.而are与 not可缩写成aren't.
如:They aren't students.他们不是学生.但是am与not不能缩写.
3.如果主语是单数名词、不可数名词或单数第三人称代词(he,she,it)时,be动词用is.
如:My mother is a teacher.我的妈妈是一名老师.
He is a student.他是一名学生.
is也可与主语缩写,如:He is = He's,My mother is = My mother's等.但是This is不可缩写.而is与not可缩写成 isn't.
如:This isn't a book.这不是一本书.
根据以上叙述我们可以把动词的用法以口诀的形式表述出来:
我(I)是am,
你(you)是are,
剩下is留给她(she),他(he),它(it),
两个以上都用are.
[思路分析]
be作助动词用的形式如下:
①am,is,are,was,were
②助动词+be:shall be,will be,can be,etc.
③have/has/had + been(完成时)
④am,is,…being(进行时)
[解题过程]
(1)表达进行时态
句型 be + V-ing…(进行时态)
例:What are you reading?
(你正在阅读什么?)
I am reading a magazine.
(我正在阅读杂志.)
例:He will be taking a walk in the park at this time tomorrow morning.
(明天早晨此时他将会正在公园散步.)
例:She has been teaching English in our school for years.
(她已在我们学校教英语许多年了.)
解说 第一例句是表达现在进行时,第二例句是将来进行时,第三例句是现在完成进行时.
(2)表达被动语态
句型 be +p.p.…(被动语态)
例:English is spoken in both Canada and the United States.
(加拿大和美国都讲英语.)
例:Those keys were found in your drawer.
(那些钥匙是在你的抽屉里找到的.)
例:It can be done much faster in this way.
(这件工作用这个方法可以更加快速地做好.)