考研英語大綱單詞中出現的有介詞詞性的單詞共計72個，介詞在英語中屬於“小詞”，但是介詞在英語表達中隨處可見、且功能強大，發揮的效力可不小。其功能之一就是，它可以和介詞賓語一起構成許多否定意義的成語或片語。今天小編為大家分享這些否定意義的介詞，助你解題更順利！
[ɑn] prep.向，朝……;關於;在……之上;在……時候
【例句】：What a pity! You’re really down on your luck.(太遺憾了，你的`運氣真是不佳!)
Don’t lie to me! I knew you were on the cross about what happened.(別對我說謊，我知道你對所發生的事情供述不老實。)
[at] prep.向;離去
【例句】：Out of sight, out of mind.(眼不見，心不煩。)
The design of the building is quite out of fashion.(這幢建築的設計相當不時髦。)
The unique book is out of print.(該孤本不再印發)
The serious old man is quite out of humor.(這個嚴肅的老人一點兒也不幽默)
Don’t wandering on the wrong planet. Rest was now out of the question.(別想入非非了，現在休息是不可能的。)
To ask $5000 for such a small house like that is out of all reason.(這樣小的一間房子要價5000美元簡直是無理取鬧!)
To be honest, I’ve had no exercise for ages;I’m really out of condition.(說實話，我已經有好幾年沒鍛鍊過了，我現在健康狀況不好。)
It’s hard to see how prices could spiral out of control while labour costs remain so subdued.(在勞動力成本保持如此穩定的同時，物價上漲到失去控制的程度幾乎是不可能的。)
Stars in the bright night are out of count.(晴朗的夜空中星星不計其數。)
The regulations were out of date and confusing.(那些規定已經不合時宜，而且令人費解。
I know I am out of line sometimes.(我知道我有時候過分了點兒。)
Those who arrivee on foot, however, are out of luck.(但那些步行而來的顧客就沒這麼幸運了。)
Nothing in this peaceful suburb was out of place.(這個平靜的郊區沒有什麼異常的情況。)
Freedom of navigation in the South China Sea is out of question.(南海的航行自由也沒有任何問題。)
It is out of time to give a comment here.(在這兒說這種話有點不合時宜。)
