介词PPT

2.表示地点： at 表示处于一个点，小地方 In 表示在……范围内，大地方 On表示处于一个面，在……上面， There is a doctor ___ the school today. There is a computer room ___the first floor. I live ___Beijing.

介词的分类
A.从构成方式可分三类： 1.简单介词：in, at, by,near,beside,on 2.复合介词：into，onto，inside，outside 3.短语介词：in front of，in the middle of B.从表示的关系可分三类： 1.表时间：at, in, on,before,after 2.表方式：by，on，in 3.表地点，方向，位置：near，behind，under。
考点二 常用介词用法辨析
1.表示时间的介词：at on in 。在……时 at 7 o’clock at half past nine at five to ten 用于具体时刻 at noon at night at this time of year 用于固定搭配 on用于具体某一天 on Sunday on May 1st in表示较长的时间 in the morning, in the afternoon, in April, in winter, in 2011

3.on the tree 长在树上 in the tree 落在树上，外来有生命的人或物 There is a bird ___the tree. There are many oranges ___the tree. 4.On the wall 在墙的表面 in the wall 在墙的内部，和墙为一个整体 There is a picture ___ the wall. There are two doors ___ the wall.

4.to on in表示方位时 Japan is ____the east of China. Korea is____ the east of China. Taiwan is ____the south of China. 表示方位接壤时用on，不接壤用to，范围内用 in。
talk with talk about agree with be worried about be interested in be good at be satisfied with

3.介词+名词 in a factory at school in time at the moment on thБайду номын сангаас farm at last at least at first 4.介词+名词+介词 in front of on the left of at the age of at the foot of at the beginning of at the end of 5.其他词+介词 Instead of because of according to
介词篇
小升初英语专项训练
什么是介词？


1.前置词，一种虚词。 2.不能单独作句子成分，放在代词或名词前面，构成 介词短语。 3.在句子中作状语，表语和定语。 Look，some girls are dancing in the park.(状语） The pen is under the book.(表语） The woman beside Mrs Black is my mother.(定语） 4.与动词做固定搭配：look at，look after, look for.

考点一 常用的介词短语



1.动词+介词 look at come in listen to think of look for put on 2.be+形容词+介词 be angry with sb. be afraid of be full of be different from

5.in front of，in the front of There is a tall tree_________the classroom. There is a blackboard_______the classroom. 在外面的前面in front of 在内部的前面in the front of 6.Don’t sleep ___class. There is an American student____class. 上课别睡觉。 班上有一个美国学生。