also的用法also too either as well的区别
also意思是也; 同样; 并且，also的用法有哪些呢?本文是学习啦小编整理also的用法的资料，仅供参考。
also的用法
also用于实义动词之前
▲also用于实义动词之前
They also agree with me.
他们也同意我的看法。
I also began to be interested in crickets.
我也开始对板球运动感到兴趣。
also用于be动词之后
▲also用于be动词之后
I was also there.
我也在那儿。
He is also an American.
他也是美国人。
also用于第一个助动词之后
▲also用于第一个助动词之后
His sister has also gone to town.
他的妹妹也到镇里去了。
The leisure center has also proved uneconomic.
休闲中心业已证明利润不大。
also有时放在句首
▲also有时放在句子的最前
Also, some students were tempted to add written comment of their own throughout the paper.
一些学生也冒险通过论文写出他们自己的评论。
I thought it was the perfect answer. Also, Tony and I had never done a historical subject.
我认为它是完美的答案。而且，托尼和我从没有作过历史科目。
also不能放在句末
▲注意：also一定不能放在句子的最后。
参见：《柯林斯COBUILD英语用法词典》
但是
赵振才教授在他的《英语常见问题解答大词典》中列举了美国英语关于also放在句末的例子。
I must buy some bread also.
我还必须买一些面包。
They know him and I know him also.
参见：赵振才《英语常见问题解答大词典》
The son had gone also.
儿子也走了。
参见：张道真《现代英语用法词典》
1. 属正式用词，主要用于肯定句或疑问句，一般不用于否定句 (否定句可用 either)，它在句中通常放在实义动词之前，特殊动词 (动词be、情态动词、助动词)之后，有时也放在整
个谓语前面或放在句首或句尾 (较少见，且多半是因为强调之故)。如：I’ve also read the book. 我也读过这本书。This room was also dirty. This room alsowas dirty. This room was dirty also.
Also this room wasdirty. 这个房间也很脏。
2. 有时由于 also 位置不同，可能会导致句子含义不同。如：We alsoregard him as a great writer today. 我们也 (同别人一样)把他看成当今伟大的作家。We regard also him as a great writertoday. 我们把他 (We regard also him as a great writertoday. 也看成当今伟大的作家。
We regardhim as a great writer also today. 我们仍 (同其它时候一样)把他看成当今伟大的作家。
3. 在简略答语中，习惯上不用3.also, 如一般不说 I also, 但可说Metoo, You too等之类的。如：A：I’m tired. 我累了。B：Me too. 我也是。
B：I also. (误)
简析also, too, as well和either用法
also, too, as well, either,作“也”讲，为副词。下面分别讲述：
一. too, also, as well：都用于肯定句，表示前者怎样后者也怎样。
too：一般放在句尾，可用逗号和前面的句子隔开，也可不用;
also：其位置大多放在be动词、助动词、情态动词之后，实义动词之前;
as well：其位置一般放在句尾，三者可以作同义句转换。例如：
You need to go shopping and I need to go shopping, too.
=You need to go shopping and I also need to go shopping.
=You need to go shopping and I need to go shopping as well.
also, too, either, as well的区别
1. too 和 as well 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：
I like you too [as well]. 我也喜欢你。
Are they coming too [as well]? 他们也来吗?
too 有时也紧跟在主语后(注：as well 不这样用)，此用法较正式。如：
I, too, know where he lives. 我也知道他住在什么地方。
在 Me too, You too 这类简略答语中，通常不用 as well, also。如：
A：I’m tired. 我累了。
B：Me too. 我也是。
2. 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：
He also came. / He came also. 他也来了。
She is young and beautiful，and also rich. 她年轻漂亮，而且有钱。
also 有时用于句首(其后通常有逗号)，相当于连词 and。如： Also，his mother was dead. 再说，他母亲又过世了。
3. either(也)通常只用于否定句，且要放在句末。如：
I don’t know, either. 我也不知道。
He hasn’t finished it，either. 他也还没有做完。
注：有时在肯定句之后跟一个否定句，可能用 too，also。如： 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。
A.too 是个常用词，多用于口语，语气较随便。一般用在肯定句中，放在句末，或作为插入语放在句中。例如：
I'm in Row 1，too.我也在第一排。
She，too，is a singer.她也是一位歌唱家。
B.also 是比较正式的用语，语气较庄重。它经常放在句中，位于行为动词之前;位于系动词,助动词或情态动词之后。例如：
Mrs Green can also sing the song in Chinese.格林夫人也能用汉语唱这首歌。
They also have fish shops in that small town.那个小镇上也有鱼店。
C.either 表示“也”时一般只用于否定句，且只置于句末。例如： I don't know him.Tom doesn't know him，either.我不认识他，汤姆也不认识他。
If you don't go there，he won't go there，either.如果你不去那儿，他也不去那儿。
D.as well 常用于口语，用法和 too一样，通常位于句末，它前面通常不用逗号。例如：
She is a teacher and a singer as well.她是教师，也是歌唱家。 I know Japanese as well.我也懂日语。
【巩固练习】
1.用too，also，either或as well填空：
1)I'll go to see the film，
2)If you don't come here，I shouldn't，
3)I，，will help him.
4)Jack can speak Chinese，and his brother can eak Chinese.
5)He knows .
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