1、時(shí)態(tài)語(yǔ)態(tài)表格

2、時(shí)態(tài)的組成：時(shí)間+狀態(tài)

3、三大重點(diǎn)時(shí)態(tài)

①一般現(xiàn)在時(shí) do/does(am/is/are done)? ? ? 描述現(xiàn)在時(shí)間的客觀情況

People often decorate their houses with holly at Christmas.

China is regarded as the largest tea-producing country.

②一般過(guò)去時(shí) did(was/were done)? ? ? 描述過(guò)去的動(dòng)作/過(guò)去是，現(xiàn)在不是了

When I was a child,I played football nearly every day.

I didn't sleep very well last night.

③現(xiàn)在完成時(shí) have done(have been done)? ? ? 描述過(guò)去到現(xiàn)在的動(dòng)作

Up to now,he has helped many people to be reunited with their family.

We are proud of what our country has achieved in the past seventy years.

高頻時(shí)間標(biāo)志詞：

⑴until now/by now/up to now/so far

⑵since+過(guò)去時(shí)間

⑶in/over the past/last+時(shí)間段

⑷f(wàn)or+時(shí)間段

④現(xiàn)在完成進(jìn)行時(shí) have been doing? ? ? 描述過(guò)去到現(xiàn)在一直進(jìn)行的動(dòng)作 （將來(lái)也繼續(xù)）

I have been working on my paper in the last 3 hours.

It has been raining since last week.

⑤過(guò)去完成時(shí) had done(had been done)? ? ? 比過(guò)去動(dòng)作/時(shí)間還早發(fā)生（過(guò)去的過(guò)去）

At the station,I was told that train had left five minutes before.

By the time dale was a senior, he had won every top honor in speech.

⑥過(guò)去將來(lái)時(shí) would do(would be done)? ? ? 在過(guò)去動(dòng)作/事件之后發(fā)生（過(guò)去的將來(lái)）

At the begining of the year 2020,students never thought they would have such a long winter vacation.

使用場(chǎng)景Top1:賓語(yǔ)從句

4、時(shí)態(tài)辨析

He graduated from college in 2015.? ? ? ? ? ? ? ? ??

He had worked as a teacher before he graduated.

He has been a teacher foe many years.

He has been trying to slove the problem in the past 3 hours, but doesn't know the answer.