(中学英语常考介词的常见意义及用法.docxVIP

佳绩教育教案学员姓名：科目：英语年级：时间：2015年 01月03 日2 课时授课教师：杨金花总课时：已上课时：教学标题中考复习之介词考点、教学重点常考介词的意义，用法以及区别教学过程一概念：介词是一种用来表示词与词, 词与句之间的关系的词。在句中不能单独作句子成分。顾名思义，介词一般是介于不及物动词和宾语之间的虚词。（vi+介词+宾语）介词后面一般有名词，代词或相当于名词的其他词类（如动名词，常考），短语或从句作它的宾语。介词与它的宾语构成介词词组，在句中作状语，表语，补语，定语或介词宾语。常考介词的常见用法,意义1 for+sb (表动作的对象) ：A “给” ；I have a surprise/gift for you.B 对某人而言/来说It’s important for us to take good care of our parents when they get old.+sb/sth A表目的，“为了某人，为了（获取某物）”My students make a card for me on Teachers’ Day.look for:为了...而四处看，也就是 “寻找”某物 （侧重“找”这个动作,与 “find(找到)”侧重结果相对 ）search for 为了（获取某物）...而搜寻 =“搜寻” +某物已经丢失/或者藏匿起来了He is looking for a job now.The police have searched for the lost girl for many days.pay...for... (为了获取某物而付...费)I pay 70 yuan for this skirt.Ask （sb ）for （sth）.(向某人索取/要/寻求某事物)It’s very necessary for us to ask for help when in need.当有需要时，学会请求帮助对我们来说很重要练习：Some students study ______their parents. They want to make their parents happy.They have searched_____ the lost plane for a long time, but they couldn’t ______ it.They paid an amount of money ____ this big house.The student came to his teacher ，asking ______ some advice.B表原因，“是因为”，连接短语或者句子，连句子时前面一般有逗号隔开。（原因强烈度：as sinceforbecause） be famous for 因为...而闻名 Zhanjiang is famous for its seafood.【注意】(be famous as作为...而闻名，as后多跟身份，头衔，职业等Zhanjiang is famous as a beautiful coastal(海滨的) city. )We canceled the picnic for the bad weather.I didn’t arrive at the bus station, for I got up late this morning.练习：She’s so tired, ____ she has worked for a whole day without rest. blame sb for sth..因某事.而指责、责怪某人My parents often blame me for my carelessness.+“一段时间” “持续了...(多久)”，多用于完成时，回答how long(多长时间) 的提问。They’ve practiced singing for many years. 他们练习歌唱已经好多年了。How long has the movie been on? 电影开始多久了？The movie has been on for half an hour.电影已经开始了半个小时。练习：The class lasts _______ 45 minutes. How long have the local people have lived here? They’ve lived here _________ a long time.【注意】since(自从...)也多用于完成时，但后面常跟时间点。如：（同义句）We haven’t seen each other for several years（时