新概念英语第二册语法精粹及练习 1 新概念英语第二册语法精粹及练习(一) 新概念二册语法精粹 一、一般现在时 一、一般现在时: 1 .构成:使用动词原形,第三人称单数须有变化
(1)直接加“s”, works,takes (2)以辅音加“y”结尾,变“y”为“i”,再加“es”, carry → carries (3)以“o, s, x, ch, sh”结尾的动词加“es”, goes dresses watches brushes 2 .功能: (1)表现在的事实、状态或动作: eg: Birds fly
She loves music
Mary's parents get up very early
(2)表习惯性动作或职业,常与 often,sometimes,usually,always,every week,seldom,occasionally,frequently等时间副词连用
eg: I always take a walk after supper
She writes to me very often
Tom and his girlfriend go out to take a picnic occasionally
(3)表客观真理,格言警句或事实: The earth moves round the sun
The sun rises in the east and sets in the west
Two and two makes four
No man but errs
人非圣贤,熟能无过
(4)表将来: A.在由 when,after, before,as,as soon as,although,because,if,even if,in case,till,until,unless,so long as