小学介词专项练习

小学介词专项练习

一、时间：

1)in , on，at 在……时

in表示较长时间，如世纪、朝代、时代、年、季节、月及一般（非特指）的早、中、晚等。

如in the 20th century, in the 1950s, in 1989, in summer, in January, in the morning, in one’s life , in one’s thirties等。

on表示具体某一天及其早、中、晚。

如on May 1st, on Monday, on New Year’s Day, on a cold night in January, on a fine morning, on Sunday afternoon等。

注意：在last, next, this, that, some, every 等词之前一律不用介词。如：We meet every day.

at表示表示某一时刻或较短暂的时间，或泛指圣诞节，复活节等在：at seven o’clock, at a quarter past four, at eleven twenty, at noon, at night, at midnight, at this time of year, at the beginning of…, at the end of …, at the age of …, at Christmas, at this moment等。

1) My father usually goes to work ________ (at, in, on) 8:00.

2) The party will begin ______ (at, in, on) 2:00pm.

表示在早晨，下午，晚上：in the morning, in the afternoon, in the evening.

1) We never go shopping ______ (at, in, on) the evening.

2) I get up at 7:30 _______ (at, in, on) the morning.

表示在具体某一天：on Monday, on Saturday, o n Children’s Day, on June 22, 2006, on Teachers’ day

1) Christmas is __________ (at, in, on) December 25th.

2) What is the first lesson（课）________ (at, in, on) Tuesday?

3) Mr. Web will go to Shanghai ______ (at, in, on) Oct. 22nd.

4) He often plays football with his friends _______ (at, in, on) Sunday.

5) Children don’t go to school _______(at, in, on) New Year’s Day.

“在星期天的早晨”这一类应用on Sunday morning（具体一天早上）

( ) 1. The girl usually practices the piano ________ Saturday morning.

A. on

B. in

C. at

( ) 2. He left home ___ a cold winter evening.

A. at

B. on

C. in

表示大约时间(about)：It's about six o'clock now. 现在大约6点钟了。

表示一段时间(for)：for two years, (how long)（任何时态）

表示一段时间之后(in)：in two days, (how soon)（将来时）

after + 时间段，常用于过去时：这里的时间段一般不是具体时间，一般不说after three days，而是three days after，但可以说after a period of time，如：After a while, he came here.

after + 时间点，可用于各种时态：After dinner I watch TV. 晚饭后我看电视。After five, he came here. 一段时间+later/ago，分别表示“(多久)以后/以前”，主要用于过去时态。

after/before+某个时刻，分别表示“在某时刻之后/之前”，此时两个词是介词。

ago与before：ago只能用于过去时, before用于完成时。

如：He had an accident a week ago.(一周前出了一个事故).

Some years later, the boy became a very famous singer.

(数年后这个男孩成了著名的歌唱家).

Have you been there before?(你从前到过那儿吗？).

After a few years he gave up smoking. (过了几年他戒了烟。)

since+时间点，常用于完成时态：since three days ago，I have lived here since I was ten years old. until+时间点（特定的时间，某事发生）：直到……为止，在……之前

not until+时间点（特定的时间，某事发生）：直到……才

He didn’t turn up until half an hour later.（半小时后他才出现）

as soon as 一….就

when与while

(1)when既指时间点，也可指一段时间，while只指一段时间，因此when引导的时间状语从句中的

动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。(2)when 说明从句的动作和主句的动作可以是同时，也可以是先后发生；while 则强调主句的动作

在从句动作的发生的过程中或主从句两个动作同时发生。

(3)由when引导的时间状语从句，主句用过去进行时，从句应用一般过去时；如果从句和主句的动

作同时发生，两句都用过去进行时的时候，多用while引导，如：

When the teacher came in, we were talking.

当此句改变主从句的位置时，则为：

While we were talking, the teacher came in.

They were singing while we were dancing.

(4)when和while 还可作并列连词。when表示“在那时”；while表示“而，却”，表对照关系。如：

The children were running to move the bag of rice when they heard the sound of a motor bike.

孩子们正要跑过去搬开那袋米，这时他们听到了摩托车的声音。

He is strong while his brother is weak.

他长得很结实，而他弟弟却很瘦弱。

时间相关的固定搭配：

at first 起初；

at last 最后

at present 现在

at the same time 同时

on time 准时地