whiskey456
适用于：初三同学一. too, also, as well：都用于肯定句，表示前者怎样后者也怎样。1.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.2.too 是普通用词,多用于口语,语气较随便。一般用在肯定句中,放在句末。例如: I\'m in Row 1, too. 我也在第一排。 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,连系动词之后;如有助动词或情态动词,一般放在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。二. either：用于否定句中，表示前者不……，后者也不……，其位置一般放在句尾。例如： He doesn’t want any coffee and I don’t want any, either.You don’t know the way and I don’t know it, either.注意:either 本身没有否定的意义。 (错)He didn\'t come. His brother, either. (正)He didn\'t come. His brother didn\'t, either转自:北文学校
