as well，as well as，also，either与too 均可表示“也”，用法及其区别分述如下：
1、too 和 as well
两者多用于口语中，语气较轻，通常用于肯定句或疑问句，一般不用于否定句，且通常放在句末。如：
He divorced her, and a good thing too [as well]. 他和她离了婚，这也是一件好事。
I will come on condition (that) she is invited too [as well]. 如果邀请她来, 那我就来。
He was just another child from the shelters. There were other children too [as well]. 他只是来自收容所的另一个孩子，另外还有其他一些孩子。
2、too 有时也紧跟在主语后(注：as well 不这样用)，此用法较正式。如：
But you, too, can buy coloured metal ones. 但是你也可以买彩色金属制品。
The Internet, too, it goes without saying, is a good source of information. 不用说，因特网也是一个很好的信息来源。
3、在 Me too, You too 这类简略答语中，通常不用 as well, also。如：
“I’m feeling hungry.” “Me too.” “我觉得饿了。”“我也是。”
“I love chocolate.” “Me too.” “我喜欢巧克力。”“我也喜欢。”
4、关于 aslo
also 比 too 和 as well 正式，一般也不用于否定句，它在句中的位置通常是紧靠动词，即放在行为动词之前，特殊动词之后。有时为了强调也放在句末(但不常见)。如：
Airplanes are fast and also comfortable. 飞机快而且舒适。
We bought a new sofa and also a new coffee table. 我们买了一个新沙发，还买了一张新的咖啡桌。
The school also has the responsibility to develop pupils’ characters. 学校也有职责培养学生的品质。
Dogs, cats and monkeys are all animals, and man is also an animal. 狗、猫和猴子都是动物，而且人也是动物。
also 有时用于句首(其后通常有逗号)，相当于连词 and。如：
Also, he has gone abroad. 而且，他已去了国外。
It’s a nice house, but it’s very small. Also, it needs a lot of repairs. 这所房子不错，就是太小。另外，还需要大修。
5、关于 either
either(也)通常只用于否定句，且要放在句末。如：
He can’t hear and he can hardly speak either. 他既听不见也几乎不能说话。
I didn’t go to the meeting either. 我也没去开会。
She can’t explain it and I can’t either. 她不能解释，我也不能解释。
I don’t like John and I don’t like his wife either. 我不喜欢约翰，也不喜欢他的妻子。
If you don’t go, I will not go either. 你若不去，我也不去。
有时在肯定句之后跟一个否定句，表示“没有也…”之类的意思，此时英语要用too或also，不用either：
He came, but she didn’t also came. 他来了，但她没有也一起来。
He went to Washington, but not to New York too. 他去了华盛顿，但并不是也去了纽约。
比较：
He didn’t buy a computer, and she didn’t either. 他没有买电脑，她也没有买。
He bought a computer, but she didn’t too. 他买了台电脑，但她没有也买台电脑。
扩展资料：
as well与as well as只有一词之差，但意义和用法却相差甚远。
一、as well 用法：
1、as well常用作状语，作“又；也”解，相当于too或also，常位于句末，无须用逗号与句子分开。如：
China is a socialist country, and a developing country as well.
中国是一个社会主义国家，也是一个发展 中国家。
2、as well 在口语中也可用于句中，作“也好，也行”或“倒不如”“最好”解，用来缓和语气。如：
If you find it unworkable, we may as well call the deal off.
如果你觉得价格不可行，我们最好取消这笔交易。
You may as well go.
你去也好。
3、as well 可以直接用于just后，用作应答语（可视为It's just as well、的省略），作“幸亏，幸而；无妨；没关系”解。如：
—We were too late to see the film.
我们去得太晚了，没有看上电影。
—Just as well、I hear it isn't very good.
不必遗憾，我听说电影也不怎么样。
二、as well as 用法
1、as well as常用来连接两个并列的成分，作“也，还”解。它强调的是前一项，后一项只是顺便提及。因此连接并列主语时，谓语动词与前一项一致；而用not only ...but also...连接时，谓语动词与后一项一致。如：
Your wife as well as you is friendly to me.
不仅你而且你的妻子也对我很友好。
（＝Not only you but also your wife is friendly to me、）
Electric energy can be changed into light energy as well as into sound energy.
电能既可以被转变成声能，又可以被转变成光能。
2、as well as 用来表示同级比较，指“一样好”。如：
You look as well as you did ten years ago.
你的身体看起来还和十年前一样好。
参考资料：
as well，as well as，also，either与too 均可表示“也”，用法及其区别分述如下：
1、too 和 as well
两者多用于口语中，语气较轻，通常用于肯定句或疑问句，一般不用于否定句，且通常放在句末。如：
He divorced her, and a good thing too [as well]. 他和她离了婚，这也是一件好事。
I will come on condition (that) she is invited too [as well]. 如果邀请她来, 那我就来。
He was just another child from the shelters. There were other children too [as well]. 他只是来自收容所的另一个孩子，另外还有其他一些孩子。
2、too 有时也紧跟在主语后(注：as well 不这样用)，此用法较正式。如：
But you, too, can buy coloured metal ones. 但是你也可以买彩色金属制品。
The Internet, too, it goes without saying, is a good source of information. 不用说，因特网也是一个很好的信息来源。
3、在 Me too, You too 这类简略答语中，通常不用 as well, also。如：
“I’m feeling hungry.” “Me too.” “我觉得饿了。”“我也是。”
“I love chocolate.” “Me too.” “我喜欢巧克力。”“我也喜欢。”
4、关于 aslo
also 比 too 和 as well 正式，一般也不用于否定句，它在句中的位置通常是紧靠动词，即放在行为动词之前，特殊动词之后。有时为了强调也放在句末(但不常见)。如：
Airplanes are fast and also comfortable. 飞机快而且舒适。
We bought a new sofa and also a new coffee table. 我们买了一个新沙发，还买了一张新的咖啡桌。
The school also has the responsibility to develop pupils’ characters. 学校也有职责培养学生的品质。
Dogs, cats and monkeys are all animals, and man is also an animal. 狗、猫和猴子都是动物，而且人也是动物。
also 有时用于句首(其后通常有逗号)，相当于连词 and。如：
Also, he has gone abroad. 而且，他已去了国外。
It’s a nice house, but it’s very small. Also, it needs a lot of repairs. 这所房子不错，就是e79fa5e98193e59b9ee7ad9431333366306438太小。另外，还需要大修。
5、关于 either
either(也)通常只用于否定句，且要放在句末。如：
He can’t hear and he can hardly speak either. 他既听不见也几乎不能说话。
I didn’t go to the meeting either. 我也没去开会。
She can’t explain it and I can’t either. 她不能解释，我也不能解释。
I don’t like John and I don’t like his wife either. 我不喜欢约翰，也不喜欢他的妻子。
If you don’t go, I will not go either. 你若不去，我也不去。
有时在肯定句之后跟一个否定句，表示“没有也…”之类的意思，此时英语要用too或also，不用either：
He came, but she didn’t also came. 他来了，但她没有也一起来。
He went to Washington, but not to New York too. 他去了华盛顿，但并不是也去了纽约。
比较：
He didn’t buy a computer, and she didn’t either. 他没有买电脑，她也没有买。
He bought a computer, but she didn’t too. 他买了台电脑，但她没有也买台电脑。
扩展资料：
as well与as well as只有一词之差，但意义和用法却相差甚远。
一、as well 用法：
1、as well常用作状语，作“又；也”解，相当于too或also，常位于句末，无须用逗号与句子分开。如：
China is a socialist country, and a developing country as well.
中国是一个社会主义国家，也是一个发展 中国家。
2、as well 在口语中也可用于句中，作“也好，也行”或“倒不如”“最好”解，用来缓和语气。如：
If you find it unworkable, we may as well call the deal off.
如果你觉得价格不可行，我们最好取消这笔交易。
You may as well go.
你去也好。
3、as well 可以直接用于just后，用作应答语（可视为It's just as well、的省略），作“幸亏，幸而；无妨；没关系”解。如：
—We were too late to see the film.
我们去得太晚了，没有看上电影。
—Just as well、I hear it isn't very good.
不必遗憾，我听说电影也不怎么样。
二、as well as 用法
1、as well as常用来连接两个并列的成分，作“也，还”解。它强调的是前一项，后一项只是顺便提及。因此连接并列主语时，谓语动词与前一项一致；而用not only ...but also...连接时，谓语动词与后一项一致。如：
Your wife as well as you is friendly to me.
不仅你而且你的妻子也对我很友好。
（＝Not only you but also your wife is friendly to me、）
Electric energy can be changed into light energy as well as into sound energy.
电能既可以被转变成声能，又可以被转变成光能。
2、as well as 用来表示同级比较，指“一样好”。如：
You look as well as you did ten years ago.
你的身体看起来还和十年前一样好。
参考资料：
He went there too.
He didn't go there either.
I like you as well.
I also went there.
also，too，as well与either 的区别
also，as well，too，用于肯定句，also常用于be动词，情态动词，助动词之后，行为动词之前；as well，too用于句末；either用于否定句中，置于句末。
例如，
My father is a teacher. My mother is also a teacher.
=My father is a teacher. My mother is a teacher as well.
=My father is a teacher. My mother is a teacher，too.
我爸爸是一名老师，我妈妈也是。
I can’t speak French.. Jenny can’t speak French，either.
我不会说法语，詹妮也不会。
如果 as well as用作连词引出比较从句，其义为“和…一样好”。因此，“He speaks Spanish as well as English．”应译作：“他说西班牙语像说英语一样好”。语意的重点依旧在前部，不在后半部。
请注意 as well as以下的用法：
She called on you as well as I．
不但我来看你，她也拜访了你。
She called on you as well as me．
她不但拜访了我，也拜访了你。
在下列句中，as well as表示“像…一样”的涵义：
She as well as you is an English teacher．
她像你一样也是英文教师。
all , both, 表示“都”，“全部”。
(1) both指两个人或物，而all指三个以上的人或物，在句中都可作主语、宾语、表语、同位语或定语。
Both of us want to go. 我们两人都想去。
All of us should work hard.我们都应努力工作。
(2) both和all都可直接修饰名词；名词前如有限定词时，其前只能用both of或all of。
Both brothers are clever. 兄弟俩都聪明。
Both of the books are useful.两本书都有用。
(3) both和all在句中的位置是位于be动词之后，行为动词之前，如有情态动词或助动词，则位于情态动词或助动词与主动词之间。
We are all here. 我们都来了。
[特别提醒]
(1) both的反义词是neither, all的反义词是none。
Both of us are not doctors. 我们俩并非都是医生。 (部分否定)
Neither of us is a doctor. 我们俩都不是医生。(全部否定)
All of the books are not helpful. 并非所有这些书都对人有帮助。(部分否定)
还有，还有，也不是，太
as well，as well as，also，either与too
还有，还有，也不是，太本回答被提问者采纳
我要到伦敦去,我妹妹也要去. I not only play the guitar,I sing as well（＝I also sing ）.
2、as well 可以直接用于just后,用作应答语（可视为It's just as well、的省略）,作“幸亏,幸而；无妨；没关系”解.如： —We were too late to see the film.
我们去得太晚了,没有看上电影. —Just as well、I hear it isn't very good.
不必遗憾,我听说电影也不怎么样.
二 、 1.as well as后接动名词短语,意为“不但…而且…”,若后接从句,则是和....一样，,请看下列例句：
①She sings as well as she plays. 她弹得好,唱得也好.
②He speaks French as well as(he speaks)English. 他英语和法语讲得一样好.
2. as well as连接两个谓语动词时,它们的时态应保持一致.
例如： He publishes as well as prints his own books.他的书是他自己印刷出版的.
We are repairing the roof as well as painting the walls.我们在粉刷墙壁同时也在修理屋顶.
3、as well as 与动词连用时,其后可用V-ing形式,尤其as well as 位于句首时,此时相当于in addition to.
例如： As well as breaking his leg, he hurt his arm.他不但摔断了腿,而且还伤了胳膊. She sings as well as playing the piano.她不但会弹钢琴,而且会唱歌. 3.如果as well as 前面是动词不定式,那么其后的动词也是不定式,但to要省略.例如： You cannot expect her to do the housework as well as look after the children.你不可能叫她既照顾孩子又做家务.
三、also，either与too三者都是“也”的意思，also ,too 用于肯定句，其中also用于句中，too用于句尾，且前面有逗号；either用于否定句,且前面有逗号。例如：
His father is a doctor; his mother is also a doctor.
His father is a doctor; his mother is a doctor, too.
His father isn't a doctor; his mother isn't a doctor, either.本回答被网友采纳