2.Li Kang plays basketball every day.
表示普遍真理和客观事实
1.The sun rises in the east.
2.The Yangtze River flows into the Pacific Ocean.
表示现在时刻都在发生的动作或存在的状态
1.Here comes the bus.
2.What’s the time by your watch.
一般过去时：表示过去某个时间里发生过的动作状态；过去习惯性，经常性的动作或行为
时态标志：two days ago, yesterday, the day before yesterday,last week/year/night/month, just now,in 1989
There will be/ there is/are going to be
Go to sleep变成sleep
一般将来时：表示将要发生的动作或存在的状态及打算，计划或准备做某事。
时态标志：tomorrow, the day after tomorrow, next day/week/month/year..., in+时间段
结构：will do am/is/are going to do
Lose变成be lost
Fall ill变成be ill
(2)将短暂性动词转化为意思相同的延续性动词
Borrow变成keep
Put on变成be on
Become变成be
Get to knold变成have a cold
Receive变成have
一般现在时：表示经常性，习惯性的动作或存在的状态。
结构：am is are/do does
用法
例句
表示经常性，习惯性的动作或存在的状态。常与usually, often,always,every day, sometimes, once a month,never等时间状语连用
1.I live in Shijiazhuang, a city not far away from Beijing.
Open变成be open
Close变成be closed
Die变成be dead
Marry变成be married
Finish变成be over
Go to bed变成be in bed
Leave变成be away
Return变成be back
Get out变成be out
Fall asleep变成be asleep
动词形式：was were/did
现在完成时：表示过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。
时间状语：since+过去时间点，for+时间段，in the past/last few years, already, yet, ever, ever since, never，before至于句尾
动词形式：have/has done
常考点：since+过去时间点，for+时间段，完成时的动词必须为延续性动词
（1）将短暂性动词转化为“be+形容词或副词”
Begin/start变成be on
Go there变成be there
Come back变成be back
Come here变成be there