also在句子中的不同位置以及词性请具体一点

also的位置比较灵活,多位于实义动词前、助动词和系动词之后,偶尔也位于句首或句尾
ad.
1.也,亦;还
John is also 19 years old.
约翰也是十九岁.
2.同样地
Since you've accepted the invitation,I'll also accept it.
既然你已接受邀请,那我也接受邀请.
conj.
1.又;并且
Also,he has gone abroad.
再者,他已去了国外.
▲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
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有时能放在句末
I must buy some bread also.
我还必须买一些面包.
They know him and I know him also.
他们认识他,我也认识他.
The son had gone also.
儿子也走了.