'be to和be going to be to 表示客观安排或受人指示而做某事。be going to 表示主观的打算或计划。I am to play football tomorrow afternoon.(客观安排)I'm going to play football tomorrow afternoon. (主观...'

'be going to / will 用于条件句时， be going to 表将来 will 表意愿If you are going to make a journey, you'd better get ready for it as soon as possible.Now if you will take off your clothes, we ...'

'一般将来时 1)shall用于第一人称，常被will 所代替。will 在陈述句中用于各人称，在争求意见时常用于第二人称。Which paragraph shall I read first.Will you be at home at seven this evening? 2)be going ...'

'used to/be used to used to + do："过去常常"表示过去习惯性的动作或状态，但如今已不存在。Mother used not to be so forgetful.Scarf used to take a walk.(过去常常散步)be used to + doing：对……已感到...'

一般过去时的用法 (2) 比较： 一般过去时表示的动作或状态都已成为过去，现已不复存在。 Christine was an invalid all her life. (含义：她已不在人间。) Christine has been an invalid al...

'一般过去时的用法 1）在确定的过去时间里所发生的动作或存在的状态。时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。Where did you go just now? 2）表示在过去一段时间内，经常...'

'现在进行时 现在进行时的基本用法：a. 表示现在( 指说话人说话时) 正在发生的事情。We are waiting for you.b. 习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。Mr. Green is writing another n...'

'将来完成时 1) 构成will/be going to do sth.2) 概念a. 状态完成：表示某事继续到将来某一时为止一直有的状态。b. 动作完成：表示将来某一时或另一个将来的动作之前，已经完成的动作或一获得的经验。They will...'

'At the lineupWei: That's them, all right.Ramon: Hey, Chinita! Is that you? I can't see with all this light.Wei: We're gonna put you behind bars for good.Ramon: You better not. I know where you l...'

'Trev talks to the copTrev: I hope they'll forgive me now that we got everything back.Cop: They still seem pretty mad.Trev: Yeah, I know. I really blew it this time.Cop: You should be more careful...'