知识点1:介词短语在句中的作用

2.合成介词
指由介词+其它介词或副词构成的介词。常用的合成介词有：[1]副词,介词,相关知识点

across是副词或介词，但不能作动词用。［误］ The little boy is going to across the street.［正］ The little boy is going to cross the street.［析］ across是副词或介词，但不能作动词用。

inside，into，onto， outside，throughout，towards，within，without等。
3.二重介词
指由两个单一的介词并列在一起，作为一个介词使用并表达一个完整意思的介词。常见的二重介词有：
from among，from behind，from under，until /till after等。介词短语在句中的作用
4.短语介词
指由介词+介词、介词+名词、介词+分词、介词+动词、介词+形容词、介词+副词等构成的短语.常用的有：[2]形容词,副词,相关知识点

doubtless是形容词还是副词There seemed to be an endless supply of food at the meeting. 会议上好像不断地有食物供应。He was endlessly kind and patient with children. 他对孩子们总是非常好，很有耐心。5. fearless—fearlesslyShe was fea

according to， along with，in front of，by means of，in spite of，together with，with regard to等。短语介词与介词短语不同。介词短语是由介词加宾语构成，本身可作句子成分，如定语或状语等，可单独使用;而短语介词是用作介词的短语，不可独立使用，本身不能作句子成分，后面要跟名词、动名词或代词等。[3]in front of,front,相关知识点

in front of 是在物体外部的前面，而in the front of 是在物体内部的前面，如：The driver sits in the front of the bus.［误］ There is a big tree in the front of the house.［正］ There is a big tree in front of the house. ［析

四、介词的宾语[4]宾语,介词,相关知识点

介词后可接that引导的从句作宾语吗介词后可接that引导的从句作宾语吗介词后通常不能接that引导的从句，遇此情况应在介词后加上 the fact。如：I’m sorry for what I said. 我为我说的话表示歉意。It all depends on when we can get the tickets. 这得看我们什么时候能拿到机票。I often wonde

介词的宾语可以是名词、代词或其他词类或句子等。例如：[5]名词,介词,相关知识点

“out of +名词”类介词习语归纳They’re still following us; we’re not out of danger yet. 他们仍然跟着，我们还没脱险。out of date 过时，已经不能用Will denim jeans ever go out of date? 粗布牛仔裤会过时吗？I must renew my passport. It’s o

名词：The car ran into a wall，and two men were killed.
代词：Wherever he went，he carried the photo with him.
形容词：Your plan is far from perfect.
副词：I can't see the tower clearly from here.She came from afar.
动名词：He entered the room without taking off his hat.[6]without,动名词,名词,相关知识点

without其后接动名词或名词而不接从句。［误］ I can't do this work well without you help me.［正］ I can't do this work well without your help.［析］ without其后接动名词或名词而不接从句。

不定式：He did nothing but cry.
介词短语：She often studies till after midnight.[7]after,介词,相关知识点

知识点1:介词after与in的区别介词after与in的区别1. 均可与一段时间连用，表示“在……之后”，但 after 表示以过去时间为起点的一段时间以后，因此通常与过去时连用；而 in 则表示从现在算起的一段时间以后，因此通常用于将来时或含有将来意义的句子。如：He came back after three days. 3 天后他回来了。I’ll come back i