too用于肯定句句末,either用于否定句句末,yet用于完成時(shí)態(tài)的肯定或疑問句末
▲also用于實(shí)義動(dòng)詞之前
They also agree with me.
他們也同意我的看法.
I also began to be interested in crickets.
我也開始對板球運(yùn)動(dòng)感到興趣.
also用于be動(dòng)詞之后

▲also用于be動(dòng)詞之后
I was also there.
我也在那兒.
He is also an American.
他也是美國人.
also用于第一個(gè)助動(dòng)詞之后

▲also用于第一個(gè)助動(dòng)詞之后
His sister has also gone to town.
他的妹妹也到鎮(zhèn)里去了.
The leisure center has also proved uneconomic.
休閑中心業(yè)已證明利潤不大.

also有時(shí)放在句首

▲also有時(shí)放在句子的最前
Also, some students were tempted to add written comment of their own throughout the paper.
一些學(xué)生也冒險(xiǎn)通過論文寫出他們自己的評論.
I thought it was the perfect answer. Also, Tony and I had never done a historical subject.
我認(rèn)為它是完美的答案.而且,托尼和我從沒有作過歷史科目.

also不能放在句末

▲注意：also一定不能放在句子的最后.
as well as,as well
這一對短語僅差一字之微,意義相近,故很易引起混淆.
作為習(xí)語用作介詞時(shí),as well as的涵義是“還有”、“不但…而且…”.值得注意的是,在A as well as B的結(jié)構(gòu)里,語意的重點(diǎn)在 A,不在 B.因此,“He can speak Spanish as well as English．”的譯文應(yīng)該是：“他不但會(huì)說英語,而且會(huì)講西班牙語”,決不能譯作：“他不但會(huì)說西班牙語,而且會(huì)講英語”.如果這樣翻譯,就是本末倒置了.as well as和 not only… but also…同義,但前者的語意重點(diǎn)和后者的語意重點(diǎn)恰好顛倒.
如果 as well as用作連詞引出比較從句,其義為“和…一樣好”.因此,“He speaks Spanish as well as English．”應(yīng)譯作：“他說西班牙語像說英語一樣好”.語意的重點(diǎn)依舊在前部,不在后半部.
請注意 as well as以下的用法：
She called on you as well as I．
不但我來看你,她也拜訪了你.
She called on you as well as me．
她不但拜訪了我,也拜訪了你.
在下列句中,as well as表示“像…一樣”的涵義：
She as well as you is an English teacher．
她像你一樣也是英文教師.
這里的謂語動(dòng)詞用is,不用are,因?yàn)榫渲械闹髡Z是she,不是she和you.
As well是副詞短語,其義為“也”,相當(dāng)于too,它一般放在句末,有時(shí)和連詞and或but搭配使用.例：
He is a worker,and a poet as well．
他是工人,但也是詩人.
China possesses enormous quantities of coal and is rich in other minerals as well．
中國擁有大量煤炭,其他的礦藏也很豐富.
Mr．Liu can speak English,but he can speak Cantonese as well．
劉先生會(huì)說英語,但他也能講廣東話
一、as well常用于肯定句句尾,表示“還,也”等意思.
1.He knows French,and he knows English as well.
他懂法語,他也懂英語.
2.Wang Hai is a worker and a militiaman as well.
王海是個(gè)工人,也是個(gè)民兵.s
二、as well后接as,邊接兩個(gè)同類項(xiàng),表示“不但,而且,和跟”等意思,強(qiáng)調(diào)as well前面的人或事物.
1.He came as well as his brother.
不僅他哥哥來了,而且他也來了.
2.He gave me clothes as well as food.
他既給我食物,又給我衣服.
三、as well as和動(dòng)詞連用,表示同類事物相比較,結(jié)果一樣好.
1.He can speak English as well as you do.
他英語說得和你一樣好.
2.She sings as well as her sister.
她和她姐姐唱得一樣好.
四、as well和may(might)連用,作謂語的一部分,may(might)as well表示請求、建議,might比may語氣更委婉,意思是“最好、何不、不如”等.
1.You may as well tell me the truth.
你最好對我說實(shí)話.
2.You might as well go.
你還不如走呢