时态语态及一般用法谓语构成时间状语一般现在时:1)经常性或习惯性的动作2)现在的特征,状态 及能力 3)普遍真理, 格言警句 be(am,is,are) do/doesalways,usually,every time,seldom, sometimes often, now and then, occasionally1)按火车、汽车、飞机等时刻表将要发生的事2)在时间、条件、方式状语从句中,用一般现在时代替一般将来时
特殊句型:1)Here/There comes our teacher
(生动作) 2)It is/has been+am/is/are done一般过去时:表示过去发生的,和现在无联系的动作或状态或习惯动作be(was, were) didyesterday, last week, an hour ago, the other day, in 1982, just now was/were done一般将来时:将来某个时刻(或某段时间内)将来要发生的动作will/shall doam/is/are going to do am/is/are to doam/is/ are about to donext…, tomorrow, in+ 时 段 , from now on, in the future, 1)一般将来时可用来表示一种倾向或习惯性动作eg
Oil will float on water
Whenever he has time, he will come
其否定式表示“不能… 没法…” The machine won’t work
(2)Cf:be going to 用来表达有某种迹象要发生的事will do 表示谈话时临时决定的意图,具有临时性和偶然性be to do 表示约定、计划或职责、义务要求即将发生的动作
be about to