介词在句中不能单独存在, 而是必须以介词短语的形式存在。介词+名词，构成的介词短语就是其中的一种。
例如：1. Unfortunately, there wasn't enough demand for our product. 不幸的是，我们的产品市场需求不大。
2. There is a real need for discipline in this class. 这个班级，没纪律不行。
介词加名词 知识点题库
There was good food __________ abundance at the party．（ ）
A . atB . withC . inD . of
I bought a shirt because it was not only good ______ but also reasonable in price.
A . of qualityB . in qualityC . of a qualityD . in a quality
___ the machine's enormous size, it runs smoothly and noiselessly.
A . For goodB . For everC . For allD . For sure
You need money and time; in (此外), you need to work hard.
After the competition, the athletes went to England a simple tour.
(另外), the competitive nature of men sets them apart from other men.
In the (短缺) of more suitable workers, we decided to offer the job to Mr Conway.
He sold me the house at a cheap price and threw in some of the furniture ________.
A . for a changeB . for my partC . for a songD . for good measure
______, we should sleep at sleep at least 8 hours a day, but in practice we sleep less than that.
A . In factB . In theoryC . On averageD . In particular
“Tokyo seeking international support over the Diaoyu Islands will be ______,” Chinese Foreign Ministry spokesman Lu Kang said on Tuesday.
A . in vainB . in silenceC . in ruinsD . in chorus
Yang Liwei prepared carefully for space exploration so that he could be sure of success at his first a.
I don't think it was an accident at all. Your brother did it .
A . for purposeB . in orderC . on purposeD . out of order
In c(总的来说), you must convince me of your ability before you are employed.
Thank you for coming together in s of this plan.
Tom won first prize in the singing competition, much our excitement.
The demand for this product is ________.
A . in demandB . in needC . in responseD . on the increase
We have been our neighbours for all these years, living harmoniously.
A . in contrast withB . on good terms withC . in competition withD . at war with
You should book your flight about two or three weeks _____ so that you can enjoy a lower price.
A . in particularB . in advanceC . in returnD . in fact
______, important advances have been made in medicine and environment science thanks to increasing computer power.
A . By accidentB . After allC . In additionD . On average
We hung most of the decorations the branches of the Christmas tree.
