[考例]You must always be careful _________ electricity．It’s
dangerous．[沈阳市]
A． to B
at C
for D．with
D．be careful with(of／about)…对……注意(警惕)，句意为“你必须时刻注意用电，那很危险。”
Boys and
girls, wish you to do well in the English exam __ a light heart. Good luck to
every-one! [哈尔滨市]
A.
on
B. with
C. without
B考查介词用法。with a light heart以一种轻松的心态(with表伴随)。with是中考的重要考点，有如下几种用法：①有，带着②表方式或工具，write with a pen用钢笔书写③表伴随a house with a big garden带有大花园的房子。
Mary
bought a house ________a small garden. She will move in next week. [昆明市]
A.
from
B.
with
C.
for
D.
of
B本题由句意人手破解，玛丽买了一处“带有”花园的房子，这儿可用介词with，意为“具有；带有”，所以B项正确。
一I hear you have got a ticket
___________the 0pening Ceremony of the Beijing Olympics．
一Yes．I
got it __________my uncle．[黄冈市]
A． of；from B
to．by C
to；from D．for；to
C考查介词的用法。本题易错选项为A……．的答案／钥匙／票，都要用to，而不能用of。故不能选A。
It was a
great day but We did not enjoy it____ the beginning．[苏州]
A．on B．for
C．with D．at
答案：D解析：此处考查固定短语“在……开始时”，用介词at，故选D。
It is
important ____us students to make a plan ____our studies before a new term
starts．[·连云港)
A．for；for B．of：for C．to；of D．with：on
答案：A解析：此题考查介词for的用法，第一空It is important for sb．to do sth．；第二空for
our studies为我们的学习，表目的。
It's
necessary for us to take one hour's exercise every day. I agree _________you. [吉林省]
A.
at
B. to
C. on
D. with
D agree
with sb同意某人的观点。注意agree with与agree to的区别。agree
with +sb“同意某人的观点”；agree to+动词原形“同意干某事”。
一How are you going to the Summer
Palace?
一We're going there
_____________bike．[北京市]
A
for B
at C
of D．by
D考查短语by bike"骑自行车”。要注意区分：take a bike to+某地一go
to+某地+by bike。
[ 连云港]
This ____woman
has devoted all her life____ caring for the poor．
A．modest；with B．kind; to C．selfish；for D．unfair；at
答案：B解析：第一空意为“这位善良的妇女”，故选kind，第二空，devote…to…指献身于……，to后跟动名词或名词，故本题选B。
[语法回顾]
1. 介词的功能
介词是一种虚词，用来表示名词或相当于名词的其它词语句中其它词的关系，不能单独使用。介词可与名词或相当于名词的其它词构成介词短语。介词短语可在句中作定语，状语，表语和宾语补足语。例如：
The boy over there is John’s brother. 在那儿的那个男孩是约翰的弟弟。(定语)
The girl will be back in two hours. 这位姑娘过两个小时回来。 (状语)
Our English teacher is from Australia.我们的英语老师来自澳大利亚。 (表语)
Help yourself to some fish. 请吃些鱼。
(宾语补足语)
2. 常用介词的用法辨析
(1)表时间的介词
1)at,
in on
表示时间点用at。例如：at
six o’clock, at noon, at midnight。表示在某个世纪，某年，某月，某个季节
以及早晨，上午，下午，晚上时，用in。例如：in the nineteenth century, in
2002, in may, in winter, in the morning, in the afternoon等。表示具体的某一天和某一天的上午，下午，晚上时，用on。例如：on
Monday, on July 1st, on Sunday morning等。
2) since, after
由since和after 引导的词组都可表示从过去某一点开始的时段，但since词组表示的时段一直延续到
说话的时刻，因而往往要与现在完成时连用。而after词组所表示的时段纯系过去，因而要与一般过去时连用。例如：
I haven’t heard from him since last summer.自从去年夏天，我再也没有收到他的信。
After five days the boy came back.五天后，这男孩返回来。
3) in, after
in与将来时态连用时，表示“过多长时间以后”的意思，后面跟表示一段时间的词语。After与
将来时态连用时，后面只能跟表示时间点的词语。After与过去时态连用时，后面才能跟表示一段时间的词语。例如：
He will be back in two months.他在两个月后回来。
He will arrive after four o’clock四点钟后，他到达。
He returned after a month.一个月后，他回来了。
(2)表示地点的介词
at, in, on
at一般指小地方；in一般指大地方或某个范围之内；on往往表示“在某个物体的表面”。例如：
He arrived in Shanghai yesterday.他昨他天到达上海。
They arrived at a small village before dark.他们在天黑前到达一个小村庄。
There is a big hole in the wall.墙上有一个大洞。
The teacher put up a picture on the wall.老师把一幅画挂在墙上。
over, above, on
over, on和above都可表示“在……上面”，但具体含义不同。Over表示位置高于某物，在某物的正上方，其反义词是under。 above也表示位置高于某物，但不一定在正上方，其反义词是below。On指两个物体表面接触，一个在另一的上面。例如：
There is a bridge over the river.河上有一架桥。
We flew above the clouds.我们飞越云层。
They put some flowers on the teacher’s desk.他们把一些花放在讲桌上。
across, through
across和through均可表示“从这一边到另一边”，但用法不同。Across的含义与on有关，表示动作在某一物体的表面进行。Throgh的含义与in有关，表示动作是在三维空间进行。例如：
The dog ran across the grass.狗跑过草地。
The boy swam across the river.那男孩游过河。
They walked through the forest.他们穿过森林。
4) in front of, in the front of
in front of 表示“在某人或某物的前面”，在某个范围以外；in the front of 表示“在……的前部”，在某个范围以内。例如：
There are some tall trees in front of the
building.在大楼前有一些高树。
The teacher is sitting in the front of the
classroom.老师坐在教室前面
3. 介词的固定搭配
介词往往同其他词类形成了固定搭配关系。记住这种固定搭配关系，才能正确使用介词。
(1)介词与动词的搭配
listen to , laugh at, get to, look for wait
for, hear from, turn on, turn off, worry about, think of, look after, spend…on…,
等。
(2)介词与名词的搭配
on time, in time, by bus, on foot, with
pleasure, on one’s way to, in trouble, at breakfast, at the end of, in the end等。
(3)介词与形容词的搭配
be late for, be afraid of, be good at, be
interested in, be angry with, be full of, be sorry for等。
[语法过关]
a lies______ the
east of Asia and______ the north of Australia,
A. to; to B.
in; to C
to; in D.
in; on
2.His son suddenly returned________ a cold rainy night.
A. on B.
at C.
in D.
for
3.Timmy goes to school __________ every day . It's 5 minutes' walk from his
home to school.
A. in a bus B.
by plane C.
on foot D.
by boat
4. Last month , students had to have their lessons by Internet ________
because of SARS.
A. on the playground B.
at home C.
in the street D.
near the hospital
5.Today some newly-produced mobile phones can take pictures __________ a
camera.
A.
as B.
for C.
like D.
of
6. Some shops open_______ 10:00 a.
m. and 3 : 30 p. m, during the Spring Festival holidays.
A. at B.
between C.
from D.
about
7. --- How are you going to the train station to meet your aunt?
--- I'm going there ________ my car.
A. by B.
in C.
to D.
on
8．Luckily,
the bullet narrowly missed the captain ____an inch.
A. by
B. at
C. to
D. from
9．The
home improvements have taken what little there is _________my spare time.
A. from B.
in C.
of D.
at
10．They
had a pleasant chat ____a cup of coffee.(北京)
A. for B. with
C. during D. over
