Module Six Unit 2 What is happiness?Grammar and usage Past and future tensesPast tensesThe simple past tense一般过去时The past continuous tense过去进行时The past perfect tense过去完成时The simple past tense1）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 1980 等。Eg. I saw Tom in the street yesterday. I bought this TV set in Beijing last year.2）表示在过去一段时间内，经常性或习惯性的动作。Eg. When I was a child, I often played football in the street. He always went to work by bus.3）用过去时表示现在，表示语气委婉礼貌。( 1.)动词 want, hope, wonder, think, intend 等。Eg. Did you want anything else? I wondered if you could help me.( 2. )情态动词 could, would，Eg. Could you lend me your bike?4）用在条件句中表示与现在或将来事实不符的虚拟语气。Eg. If I were a bird, I would fly to Beijing. If he were here now, we could turn to him for help. 注意下列句型：◎ It is time sb. did sth. “时间已迟了；早该……了”，Eg. It is time you went to bed. ◎ would (had) rather sb. did sth.表示“宁愿某人做某事”，Eg. I'd rather you came tomorrow.The past continuous tense1) 过去进行时表示过去某一时刻或某一段时间正在进行的动作。常与 at that time , the whole morning, all day yesterday, from nine to ten last evening 等连用。Eg. What was he doing this time yesterday? In 2001 she was studying in a university. 2.）过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另用心 爱心 专心一个短动作发生。My brother fell while he was riding his bicycle and hurt himself.It was raining when they left the station.The past perfect tense1）过去完成时表示过去某一时刻或者某一动作之前完成的动作或状态；句中常用 by, before, until, when 等词引导的时间状语。 By the end of last year we had built five new houses. I h...
