介词 prep
复习目标】
掌握常见介词的用法。
掌握介词与动词，介词与形容词，介词与名词结合构成短语的用法。
课前准备】
要求学生对所学过的介词作一系统归纳，按照四类表示：时间、地点、趋向和其他。
知识要点】
一）表示时间的介词
1．at表示时间点，at six o'clock, at noon；on表示特定日子，如on children's day；in表示一段时间，in the morning.
注：she'll be back in an hour. he came back after a month.
in+一段时间与动词将来时连用，表示过一段时间之后；after+一段时间用于过去时，指一段时间后。
2．during表示期间的某个时期
it rained several times during the night.
for表示多长时间
it has rained for two hours.
through表示整个期间
it rained all through the night.
3．till, by, before, after表示时间期限或先后
i'll be here till seven.
i'll be home by six.
i'll be here before seven.
4．from, since表示时间起点
they h**e lived here since 1985.
i h**en't seen her from then on.
二）at, in, on, under, behind, by, near, between可表示场所，into, out of, along. across, through可表示方向，with, in, by, like, from可表示手段、材料等
she is sitting by the window.
sam got out of the lift and ran quickly to the man.
we smell with our noses.
三）介词与动词搭配如：look at, arrive in/at etc.
介词与形容词搭配如：be interested in, be kind to, etc.
介词与名词搭配如：at least, by the way
注意几组介词的区别：on, above, over与below，under, among与between, across与through，about与on
1．on的同义词是above, over, above是指斜上方，over指正上方，其反义词是below, under; below是指位置低于某物或在某物的下方，但不一定在某物正下方，其反义词是above；under是指在某物的正下方有垂直在下的意思，其反义词是over。
2．among是指三个或三个以上之间，between是指两者之间。
3．across与through都有“穿过”之意，都可指从一定范围的一边到另一边，across的含义与on有关，表示动作是在某一物体的表面进行的；through与in有关，表示动作是在某一物体的空间里进行的。
典型例题解析】
例1 it's cold outside. you'd better your warm clothes.
a. put in b. take off c. put on d. put up
解析从句意理解，意为穿上暖和的衣服，应选c。
例2 he got many gifts his birthday his friends.
a. on, from b. in, of c. at, to d. from, for
解析具体某一天用介词on,从朋友处得到礼物用from,故应选a。
例3 the classroom is quite different that one.
a. of b. from c. with d. like
解析 be different from为固定搭配，应选b。
例4 look, you'll see a bridge the river.
a. on b. above c. over d. in
解析 on表示河面上，above表示河上方，in表示河里，而over表示桥跨两岸，故应选c。
选讲例题】
例5 –your coat looks nice, is it cotton?
-yes. it’sshanghai. (南昌2001)
a. made of, made by b. made of, made in
c. made for, made in d. made from made by
解析衣服看出原料用be made of,在**制造用be made in,故应选b。
例6 tow may fall the others because he has missed so many lessons.
福建厦门2001)
a. after b. behind c. later d. out of
解析意为他可能落后于其他人，落后为fall behind,应选b。
课内追踪练习】
单项选择 c)1．the greens h**e lived in china more than 3 years.
a. in b. to c. for d. with
c)2．which is the way the people's hospital.
a. on b. at c. to d. in
b)3．the twins lived there the years 1998～2000.
a. between b. during c. in d. at
a)4．i heard he had already left tianjin.
a. for b. from c. to d. in
d)5．what was jim looking when the teacher came ?
a. down, to b. at, on c. after, at d. for, in
c)6．look! they are walking the rain.
a. by b. on c. in d. across
d)7．-are you going shopping bus?
no, we are going tom's car.
a. by, by b. on, in c. in, on d. by, in
a)8．my friends call me tom short.
a. for b. by c. with d. in
d)9． miss gao's help, all of them study english well.
a. under b. in c. below d. with
复习小结】
、介词种类繁多，且相当部分介词有多种用法，应牢记。
、掌握易混淆的几组介词的区别。
、中考常见题型为选择题及综合应用题，需灵活运用。
课外巩固练习】
一、选择填空
b)10．taiwan is the southeast of china.
a. on b. in c. to d. of
d)11．go the bridge and you'll find it.
a. cross b. crossing c. crossed d. across
b)12．the great wall is known the people all over the world.
a. by b. to c. in d. at
a)13．i go to school 7∶30 every morning.
a. at,× b. in, on c. at, in d. at, on
c)14．we'll finish the book the end of the month.
a. till b. until c. by d. for
b)15．the workers all wear their hats their head and glasses their eyes.
a. in, over b. on, over c. over, over d. to, on
a)16．every evening, i learn english .
a. on the radio b. from the radio
c. by the radio d. in the radio
b)17．nobody can stop him jumping into the lake.
a. of b. from c. for d. to
d)18．best wishes you new year's day.
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