新概念英语第二册:语法精粹及练习

新概念英语第二册:语法精粹及练习

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.

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