介词复习优秀课件.ppt

介词;介词的分类与语法功能 介词是虚词，不能单独作句子成分，必须与名词、 代词（或相当于名词的其他词类、短语或从句等） 构成介词短语，表示某个人、事物/东西、事件与 另一个之间的关系。 常见的介词宾语：名词、代词、动名词、从句、 介词分为：简单介词，如at、in、for等； 合成介词，如within、inside、onto… 短语介词，如according to、out of、 because of、by means of、 双重介词，如from behind / above / under、 分词介词，如considering、including、 ;（一）考查表示时间的介词 1）in, on, at, after in——用于较长一段时间, 星期, 月份, 季节, 年, 朝代世纪或非特指的早、午、晚等。 eg: in 1988, in the 21st century, in winter, in March, in the day， in the morning, at night, at noon / on——具体某一天或具体某一个早、午、晚。 on Saturday evening, on the May seventh, on a windy night, on the afternoon, of October 31st;at——在某一点时间或某个瞬间。 at eight o’clock, at the end of, at this moment, at this time, at times / at a time / at one time， at the age of;【拓展考点1】 in+一段时间，表示一段时间之后，与动词将来时连用。 after则常用于过去时。 比较：He will be back in two days. He came back after two days. 易错题： --_______ will the film start? --In ten minutes. How long B. How often C. How soon D. How far;【拓展考点2】 On+具体某一天/节日 易错题：--When were you born? --I was born ____ the morning of May 7th, 1995. A. in B. at C. on D. by;另外注意：在时间词（morning , afternoon , evening ; Sunday…）前有last, next , this , that时，不再用介词. tomorrow, tonight前也不用介词。 eg. I will go(A) to the cinema(B) in(C) this evening. ______________ ;注意：at night= in the night at noon at this / that time at Christmas 区别 on Christmas Day eg. 1.___ the morning 2.___ Monday morning 3. ___ a rainy evening 4. ___3:50 5.__ 2002 6.___ the morning of April 10 7.___ spring 8.___ night 9.___ this time 10. ___ March; 2)for + 一段时间常表示“持续了一段时间”, since + 时间点/ + 完成时 during则表示在……期间+ 一般时态 He has been in Beijing for 3 years. He has been in Beijing since 3 three years ago I was in Beijing during last summer. since，for常与现在完成时连用，提问时用how lo