时态变化 一般现在时 一般过去时 现在进行时 过去进行时 现在完成时 过去完成时 一般过去时 过去完成时 过去完成时 过去完成时(不变) 一般将来时 过去将来时 can(现在时) could(过去时) may(现在时) might(过去时) must(现在时) had to(过去时) 指示代词 this that these those 时间状语 now then today that day tonight that night this week/month... that week/month... yesterday the day before three days/months/...ago three days/months/...before tomorrow the next (following) day next week/month/... the next (following) week/month/... 地点状语 here there 方向性动词 come go bring take

将直接引语变为间接引语时应注意以下事项：

(1)在人称变化项目中，如果主句的主语是第一人称，则从句的主语无需变化；如果主句的主语是第三人称，则从句的主语常有上表所示变化。

I say，"You are right."

→I say that you are right.

(2)时态不变的特殊情况如下：

①直接引语是客观真理时。

He said，"The earth goes around the sun."

→He said that the earth goes around the sun.

②当直接引语中有具体的过去时间作状语时，间接引语仍然用一般过去时。

Mr Wang said，"I was born in China in September,1972."

→Mr Wang said that he was born in China in September,1972.

③当直接引语是过去完成时态时。

She said，"They had left when I arrived there."

→She said that they had left when she arrived there.