高考英语语法一轮复习——主谓一致课件(共56张PPT)

Unit THREE 主谓一致 一、主谓一致的基本原则 e.g.1 A book is on the desk. 主单谓单;主复谓复 e.g.2 Two books are on the desk. 1、主单谓单 ①单数可数名词 （主）单（谓） e.g.1 A book is on the desk. ②不可数名词 （主）单（谓） e.g.2 Water is colorless. ③doing,to do,句子 （主）单（谓） e.g.3 Seeing is believing. To see is to believe. What you saw is true. ④复合不定代词 （主）单（谓） e.g.4 Nobody knows his name. 课堂练习1： The use of irrigation in the once-arid region have increased the production of alfalfa and of many other crops as well. （OG-P839-20） has increased × 课堂练习2： Building new windmill farms reduces fossil fuel consumption and keeps tons of carbon dioxide emissions out of the atmosphere. （OG-P408-10） √ √ 2、主复谓复 ①可数名词复数（主）复（谓） e.g.1 Two books are on the desk. ②A and B （主）复（谓） e.g.2 A pear and an apple are fruits. ③both A and B （主）复（谓） e.g.3 Both Lucy and Lily are girls. 课堂练习1： Both her work on community service projects and her dedication to learning have gained Ms. Stevens the re