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1、2012英语中考复习专题 - 介词（一）一介词的定义介词是一种用来表示词与词，或者词与句之间的关系的词，在句中不能单独作句子成分。介词一定要有宾语，充当宾语的一般有名词，代词或相当于名词的其他词。二 考点解析中考对介词的考查包括：介词的基本用法，易混介词的辨析，与介词有关的固定搭配等。三介词的主要分类：时间介词，地点介词和方式介词四：考点知识精讲-时间介词表示时间的介词有：in, on, at, after, before, during, over, from, for, since, until, by etc.时间介词辨析1 （in, on, at）1. in 表示较长时间，如：世纪、年
2、、季节、月份、周、上午、下午、晚上以及一些习惯用法中。如：in the 21st century in 2012 in winter in September in the morning/afternoon/evening in a week/in a year固定搭配：in no time立刻/ in the daytime在白天/ in the future在将来/ in the end 最后2. on表示“在具体某一天或某天的上、下午”。如：on Monday on September 21st注意：泛指上、下午、晚上、夜间时用in the morning/afternoon/even
3、ing；但若指具体某一天的上述时间时，则一律用on。如：on the afternoon of May 23.3. at 表示“在某一时刻、某一时间点”。如：at 5:30 at sunrise at noon/ night/midnight固定搭配：表示“在岁”时用 at the age of 如：at the age of five.at that time在那时/ at first首先/ at last最后=in the end/ at once立刻/at the beginning of 在开始时/ at the end of在结束时随堂练习1. I often get up earl
4、y _ the morning, but _ Sunday morning, I get up late.2. My father likes telling us something about his work _ supper.时间介词辨析2 （for, since, from, by）1. for 表示“一段时间”，后接与数词连用的时间名词。多与完成时连用。如：I have been a soldier for 5 years. 我入伍已经五年了。2. since 表示“自以来”，表示从过去某一时刻到现在，后接时间点，主句常用现在完成时。如：Mr. Smith has lived he
5、re since 1998. 史密斯先生从1998年就住在这。总结：for与since 表示一段时间，但for与时间段连用，而since与时间点连用。3. from 表示“从（开始）”如：He started work from eight oclock. 他从八点开始工作。4. by 指“不迟于，到时为止，在以前”如：I must finish my homework by lunch. 午饭前我必须做完作业。We had learned over 1000 words by the end of last term. 到上学期末为止，我们已经学了一千多了个单词了。注意：表示“在以前”时，b
6、efore与by基本可以通用。但by还有“到时为止”之意，此时可与完成时连用，而before一般不与完成时连用。时间介词辨析3 （after，in, during）1. after后可跟时间段，也可跟时间点；而in后必须跟一段时间。2. after即可用于将来时，也可用于过去时；而in只能用于将来时。如：Well hold a party after dinner. 晚餐后我们将举办晚会。He got a cancer and died after a year. 他患了癌症，一年后去世了。I will arrive in an hour. 我一小时后就到达. 随堂练习1. He came b
7、ack _ half an hour.2. Lucy will go out _ half an hour.3. They will visit her _ Friday.练习：用介词填空1. I stay at home _ Sunday.2. There is going to rain _ night.3. We often go swimming in rivers and lakes _ summer.4. The weather here is very different from Australia _ this time year.5. Mike was born _ March 20, 1982.6. You can buy things in the shop _ four oclock _ the afternoon.7. We have been to this school many times _ 1994.8. Mid-Autumn Day usually comes _ September or October.9. Class begins _8 oclock in the morning.10. A big fire broke out _ the night of December19th.
