高一英语三单元知识重点二

1、戴氏教育精品堂培训学校金堂校区 第三单元重点难点：第三单元重点字词，以及语法易错易混点：过去分词做定语、做表语、做状语、做宾语补足语。考点：abandon try doing/try to do的区分 be short for和for short 的区分 年代的表达 allow sb. to do sth.等等一、 重要词汇1）We saw abandoned farms which were built more than a hundred years ago.本句为复合句，用了which引导定语从句来修饰先行词farms. 当先行词在指物的时候，我们可以考虑which/that等引导定语

2、从句，切which/that 在定语从句中可以做主语、宾语等。We saw abandoned farms which were built more than a hundred years ago.主语 谓语 宾语 定语从句，which做主语abandon oneself to沉溺于.纵情于2）They tried riding hores,but the horse didnt like the hot weather and sand.try doing 尝试干某件事情try to do 尽力干某件事情3)Ghan is short for Afghanistan.be short.f

3、or 是.的缩写for short 是.的缩写in short 总之，简言之=in a word4)For many years ,trained camels carried food and other supplies,and returned with wool and other products.supply 补给通常用复数supply sth. to sb.supply sb. with ductproduct 可数名词，多指工业产品，也可以指任何体力劳动或者脑力劳动所产生的东西production 不可数名词，可以指生产的行为，也可以指生产的结果，还可以指“产量”

4、produce 不可数名词，是“农产品”或者“自然产品”的总称。After the increased ,farmers more and more .5）The Afghans and their camels did this until the 1920s.the 1920s二十世纪二十年代2 / 4在.世纪.年代的表示方法中，必须加the,时间后面加s或者s都可以。in/during the 1950s/1950s拓展：in ones +基数词的复数形式in 1950 在1950年in his fifties在他五十多岁的时候6）In 1925, they passed a law which allowed people to shoot the animals if they were a 状语 主语 谓语 定语从句主句 条件状 problem.语从句allow sb. to do sth.allow 后面接名词代词或者动词-ing形式做宾语，也可以接不定式的复合结构，即构成了allow sb. to do sth. shoot 射杀某人或者把某人打死打伤，强调结果Linciln was shot while watching a play at Fords Theater.shoot at 用枪朝某人或者某物，强调射杀这个动作He shoot at t