考研英语大纲单词中出现的有介词词性的单词共计72个，介词在英语中属于“小词”，但是介词在英语表达中随处可见、且功能强大，发挥的效力可不小。其功能之一就是，它可以和介词宾语一起构成许多否定意义的成语或词组。今天小编为大家分享这些否定意义的介词，助你解题更顺利!
8. from [frʌm] prep.来自，从;由于;今后
【例 句】：The child can’t walk, far from running.(更不用谈)
So far from taking my advice, he did just against.(不仅没有)
She kept herself from laughing.(使某人不)
I knew he did it from his teeth.(毫无诚意)
9.in [ɪn] prep.按照(表示方式);从事于;在……之内
【例 句】：I don’t know what he intends to do; I’m in the dark about his plans.(不知道)
The people lifted the big stone in a breeze.(毫不费力)
We all decide to start our journey in all weathers.(风雨无阻)
With the card, you can enter this building in the clear.(不受妨碍)
Her schemes are usually up in the clouds. (不切实际)
This great plan is still in the egg.(尚未成熟)
At the sight he laughed in spite of himself.(不由自主地)
The girl wanted to marry the poor man in spite of her parent’ teeth.(不顾)
10. off [ɔf] prep.离开;脱落
【例 句】：Keep off the grass.(不靠近)
I am right off love stories for some reason.(不感兴趣)
He is off smoking now.(不再吸烟)
She was off duty yesterday.(不值班)
You have got what is on the off chance for others.(不会有机会)
She felt a bit off color, but she’s much better now.(精神不好)
The initial phase of the flu is steep, taking health experts off guard.(猝不及防)
I’m talking off hand, simply speaking my mind.(无准备)
The sold company is off his hand now.(不再由某人负责)
The failing marriage is over and off her mind.(不再挂念)
It is a little off time of speaking that in the wedding.(不合时宜)
He catches cold and is off work today.(没上班)