一、一般现在时1.概念:经常、反复发生的动作或行为及现在的某种状况。也可表客观规律以及现在时间,条件状语从句中表将来时(主将从现)。2.时间状语:always,usually,often,sometimes,every week(day,year,month…),once a week,on Sundays。3.基本结构:(1)be动词:am/is/are;(2)行为动词:动词原形、第三人称单数。4.否定形式:(1)am/is/are+not;(2)don't/doesn't+动词原形+……。 First, the general current 1. Concept: Often, repeated actions or behavior and some of the current situation. Can also be objective laws and the current time, conditional adverbial clause in the future when the watch (the Lord will now). Time adverbial: always, usually, often, sometimes, every week (day, year, month ...), once a week, on Sundays. 3. Basic structure: (1) be verbs: am / is / are; (2) behavioral verbs: verb prototype, third-person singular. 4. Negation: (1) am / is / are + not; (2) do not / does not + verb prototype + ....