《常见介词用法及其》由会员分享，可在线阅读，更多相关《常见介词用法及其（4页珍藏版）》请在金锄头文库上搜索。
1、思睿博教育剑桥通用五级考试语言点讲义PET Grammar 3 常见介词和连词讲解一：引导时间状语的介词in/on/at/during/till/until/for/since等1、用in的时间短语有：所用范围举例 表示一天中的某段时间：in the morning；in the afternoon；in the evening 表示周、月份、年份：in a week；in January；in Feb；in 1992 表示季节：in summer；in spring；in autumn；in winterin+表示时间长度的短语可以表示“在某段时间之内”，这时可以与现在时、过去时或将来时连用
2、，一般与完成某动作有关；还可译为“时间之后”，一般与将来时连用。根据时态判别in 表示的含义in twenty minutes time 20 分钟之后 We will finish fn class in half an hour.2、用on的时间短语有：所用范围举例 表示星期：on Monday；on Friday 表示日期：on June 1st；on 23rd March（在书写日期时没有冠词，但在口语中则分别读为：on June the first；on the 23rd of March三月） 表示星期+日期：on Monday, June 1st 表示具体时间：on Wednes
3、day evening；on fine afternoon；on that day3、用at 的时间短语有：所用范围举例 表示确切的时间：at five to twelve；at ten oclock 表示用餐时间：at lunch/dinner time；at teatime 表示其他时刻：at night；at noon；at midnight；at that time4、during的用法：用法举例during在期间，后必须跟一个名词，可以指整个一段时间，有时可以用in替代。 He has phoned four times during the last half hour.I met
4、 him sometime during the week.（不能用in代替） 我是在这一周的某天遇到他的。during the holiday 强调假期的从头到尾in the holiday 强调这段时间其中某一点时间, 并不表示自始至终He enjoyed himself during his holiday.I was caught in an accident in the holiday. 5、fromtill 指一段明确的时间：The tourist season sizn 季,季节runs from June till October.6、fromto从到Everyday we
5、have English class from 8:30 to 11:307、until prep.&coin. until直到时候，直到什么时候为止, 直到什么时候才I cant enter for the sports meeting until tomorrow.until主句和从句两个都用一般过去时对(最习惯的一种用法), 主句和从句任何一个用过去完成时也对I had not understood the problem until he explained it.We hadnt disturbed him until he finished work.We didnt distur
6、b him until he had finished work.We didnt disturb him until he finished work.(更习惯于这种用法)8: throughout：（表示时间）自始至终，在.期间，遍及地域，遍及场所,整个时期Rain fell throughout the night雨下了一整夜。They worked like that throughout the year整整一年他们都这样干。He was a brave fighter throughout his life9: for / since：都用在完成时中，for+时间段，since+时
7、间点/一般过去时的句子Ive lived here for three years.Ive studied English since 2012.Ive been studying English snice I was 11.二：介词和动词构成的动词短语：1：be good at 擅长于 / be great at 2：be interested in对感兴趣3：show .to sb.把向某人展示4：be afraid of害怕5：know much about st.对知道很多6：talk to sb. about sth.和某人谈论关于某事7：depend on / rely on依赖
8、依靠8：feed up with给某人以充分的或有营养的食物 be (get) fed up with sth. / doing sth.【口语中】使对.厌烦，使厌倦【常用被动语态】9：look for=search for寻找10：look forward to sth. / doing sth.盼望做某事三：常见连词：连词用法举例常犯错误ifIf表示 “如果”, 引导条件状语从句，引导的从句放开头或主句后都可If I can do, you will do it as I do.注意if/unless都可以引导条件状语从句，但是从句结构不一样：if+肯定句=unless+否定句unless
9、unless表示“除非”,引导条件状语从句，表示 “除非否则”引导的从句放开头或主句后都可Unless you can get No. 1, you should study harder.despiteDespite表示“不管，尽管”Despite Johns help, Ben still cant operate the camera.但是despite是个介词，后面不接句子，接名词/代词/动词ing形式althoughAlthough表示“虽然，但是”,引导让步状语从句,一般放在从句开头Although I came so early, the suoermarket didnt op
10、en.注意汉语中习惯表达“虽然但是”, 但在英语中有although引导的从句，后面的主句就不要出现but.相反从句有but，前面也不要出现althoughbutBut表示“但是”,表示转折，but引导的从句一般放在主句的后面I came so early, but the supermarket didnt open.becauseBecause表示“因为”解释说明原因和回答why的问题。引导的从句放开头或主句后都可Because he was late, he missed the bus.注意because和so不能同时出现在一个句子中。soSo表示“所以：强调结果，引导的从句一般放在主
11、句的后面He was late, so he missed the bus.whenWhen表示“当的时候”，引导时间状语从句，从句的动作既可以是延续的也可以是非延续性的，从句可以使一般过去时也可以是过去进行时When he came home , his mother was cooking dinner.When 引导的从句后面的时间可以是时间点或时间段，从句的动词即可以是延续动词或非延续性动词whileWhile表示“当的时候“引导时间状语从句，从句的动作一定是延续性的，从句一般用过去进行时He came home while his mother was cooking dinner.但while引导的从句后面的时间必须是时间段，后面的动词必须是延续性的，如果主句和从句都是过去进行时的句子只能用while不能用when如：I was doing homework while my mom was cooking dinner.5
