英语语法考点介词
英语的介词有什么作用呢?大家知道吗?接下来，小编给大家准备了英语语法考点介词,欢迎大家参考与借鉴。
英语语法考点介词
1、介词和种类
(1) 简单介词，常用的有at, in, on, about, across1, before, beside, for , to, without等。
(2) 复合介词，如by means2 of, along3 with, because of, in front of, instead5 of等。
2、介词和其他词类的习惯搭配关系
(1) 和动词的搭配，如agree with, ask for, belong7 to, break away from, care8 about等。
(2) 和形容词的搭配，如afraid of, angry with, different from, good at
(3) 和名词的搭配，如answer to , key to, reason9 for, cause4 of, visit to等.
3、介词短语可以有自己的修饰语，这种修饰语通常有right, just, badly10, all, well, directly, completely等少数几个副词。如：
He came13 right after dinner.
He lives directly opposite14 the school.
4、 某些介词的意义与用法举例
(1) at, on, in(表时间)
表示时间点用at,如at four o'clock, at midnight等;表示不确定的时间或短期假日也用at,如at that time, at Christmas等。
指某天用on, 如on Monday, on the end of November, 指某天的朝夕用on,如on Friday morning, on the afternoon of September lst等。
指长于或短于一天的时段用in,如in the afternoon, in February, in Summer, in 1999等。
(2) between, among15(表位置)
between仅用于二者之间，但说三者或三者以上中的每两个之间的相互关系时，也用between, 如
I'm sitting between Tom and Alice.
The village lies16 between three hills.
among用于三者或三者以上之间。如：
He is the best among the students.
(3) beside, besides17
beside意为"在…旁边"，而besides意为"除…之外"。如：
He sat18 beside me.
What do you want besides this?
(4)in the tree, on the tree
in the tree 指动物或人在树上，而on the tree 指果实、树叶长在树上
(5)on the way, in the way, by the way, in this way
on the way 指在路上 in the way 指挡道
by the way 指顺便问一句 in this way 用这样的方法
(6)in the corner, at the corner
in the corner 指在拐角内 at the corner 指在拐角外
(7)in the morning, on the morning
in the morning 是一般说法 on the morning 特指某一天的早晨
(8)by bus, on the bus
by bus 是一般说法 on the bus 特指乘某一辆车
II. 例题
例1 Do you know any other foreign19 language____ English?
A except20 B but C beside D besides
解析：A、B两项except等于but，意为"除了…"，C-beside意为"在…旁边"，不符合题意。而D-besides, 意为"除了…之外，还有"。所以该题正确答案为D。该题意为：除了英语外，你还知道别的语言吗?
例2 He suddenly21 returned22 ____ a rainy night.
A on B at C in D during23
解析：我们均知道，at night这一短语，但如果night前有修饰词，表具体的夜晚，则要用介词on来修饰，故该题正确答案为A。
例3 I'm looking forward24 ____your letter.
A to B in C at D on
解析：该题正确答案为A。look forward to 为固定搭配，意为"期望、盼望"。
扩展：副词
1、 副词的种类
(1) 时间副词 如：ago, before, already, just, now, early, late, finally, tomorrow等。
(2) 地点副词 如：here, there, near, around, in, out, up, down, back, away, outside等。
(3) 方式副词 如：carefully, angrily, badly, calmly, loudly, quickly, politely, nervously等。
(4) 程度副词 如：almost, nearly, much, greatly2, a bit, a little, hardly, so, very等。
2、 副词比较等级的用法
其用法与形容词相似，只是副词最高级前可省略定冠词。如：
Of all the boys he sings (the) most beautifully3.
We must work harder.
3、 某些副词在用法上的区别
(1) already, yet, still
already表示某事物已经发生，主要用于肯定句;yet表示期待某事发生，主要用于否定句和疑问句;still表示某事还在进行，主要用于肯定句和疑问句，有时也可用于否定句。如：
We've already watched that film.
I haven't finished my homework yet.
He still works4 until late every night.
(2) too, as well, also, either
too, as well和 also用于肯定句和疑问句，too和as well多用于口语，一般放在句末，而also多用于书面语，一般放在句中与动词连用。either用于否定句和否定的疑问句，往往放在句末。如：He went there too.
He didn't go there either.
I like you as well.
I also went there.
(3) hard, hardly
hardly意为"几乎"与hard在词义上完全不同。如：
I work hard every day.
I can hardly remember that.
(4) late, lately5
lately意为"最近、近来"，late意为"晚、迟"。如：
He never comes late.
Have you been to the museum lately?
4、例题解析
例1 Tom's father thinks he is already ____
A high enough B tall enough
C enough high C enough tall
解析：该题正确答案是B。修饰人高用tall, 而建筑物的高用high,并且enough修饰形容词要放在形容词后面。因此该题选B。
例2 ____ the worse I seem to be.
A When I take more medicine
B The more medicine I take
C Taking more of the medicine
D More medicine taken
解析：该题正确答案为B。"the+形容词比较级+… , the +形容词比较级+…"意为越…，越…。该句意为：吃的药越多，我的病越是加重。
例3"I haven't been to London yet".
"I haven't been there ____".
A too B also C either D neither
解析：该题正确答案为C。A和B都用于肯定句中。D-neither本身意为否定"两者都不"，而C-either则用于否定句中，意为"也"。
例4 Mr Smith was ____ moved at the news.
A deep B deeply6 C very deep D quite deeply
解析：该题正确答案为B。A. deep用于副词时，修饰具体的深，如dig deep,而B-deeply则修饰表示感情色彩的词，如该题为deeply moved.另如deeply regret等。而D-quite和deeply均为副词，不能互相修饰。
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