too，also，as well，either的區(qū)別

　　too,also,as well,用于肯定句，表示后者和前者一樣，而either,用于否定句。too,一般放于句末，可用逗號(hào)和前面的句子隔開。also, be動(dòng)詞，助動(dòng)詞，情態(tài)動(dòng)詞之后，實(shí)意動(dòng)詞之前。as well,一般放于句末。

　　1. too：較為口語(yǔ)化，用于肯定句或疑問(wèn)句中。一般用于句末，或作為插入語(yǔ)放在句中，與前面的內(nèi)容用逗號(hào)隔開。如：

　　Jim likes red. I like red，too.

　　吉姆喜歡紅色，我也喜歡。

　　I like to play soccer, and she likes to play soccer, too.

　　我喜歡踢足球，她也喜歡踢足球。

　　I can play the piano and Mary, too, can play the piano.

　　我能彈鋼琴，Mary 也能彈鋼琴。

　　Are they coming, too? 他們也來(lái)嗎?

　　2. either：用于否定句/否定意義的疑問(wèn)句中，通常放于句末。如：

　　If he doesn't go， I won't, either.

　　如果他不去，我也不去。

　　It won't do them any good, but it won't do them any harm, either.

　　這對(duì)他們沒(méi)什么好處，但也沒(méi)有什么害處。

　　Don’t you like dancing, either?

　　你也喜歡跳舞嗎?

　　3. also：較為正式，通常用于實(shí)義動(dòng)詞之前，系動(dòng)詞、情態(tài)動(dòng)詞和助動(dòng)詞后。用于肯定句或疑問(wèn)句中。如：

　　I’m late for school, and Mike is also late for school.

　　I can speak English and I can also speak a little French.

　　I’m writing a short story, and she is also writing a short story.

　　She likes reading novels (小說(shuō)) and I also like reading novels.

　　Do you also want to come with us?

　　4. as well：用于肯定句或疑問(wèn)句中，通常放于句末。如：

　　He speaks English, and he knows French as well.

　　他說(shuō)英語(yǔ)，也懂法語(yǔ)。

　　Can you help them with English as well?

　　你也能幫他們學(xué)英語(yǔ)嗎?

　　口訣助記：

　　also用于肯定句， 請(qǐng)(情)主(助)席(系)后實(shí)動(dòng)前。

　　too也用于肯定句，句末逗號(hào)別忘記。

　　as well 放哪里，肯定句末就可以。 (乖乖女，她在句末肯定你)

　　either either最叛逆，否定句末就是你。