专升本英语考试辅导.pptVIP

4） 现在时刻的状态、能力、性格、个性。例如： Ann writes good English but does not speak well. Once environmental damage __________, it takes many years for the system to recover.A) has doneB) is to doC) doesD) is done 2 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。例如：时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。例如： 　 Where did you go just now? 刚才你上哪儿去了？ 2）表示在过去一段时间内，经常性或习惯性的动作。例如： When I was a child, I often played football in the street. Whenever the Browns went during their visit, they were given a warm welcome. I decided to go to the library as soon as I _______.A) finish what I didB) finished what I didC) would finish what I was doingD) finished what I was doing 句型 ：It is time that sb. did sth. “时间已迟了”　 “早该……了” ， 例如It is time you went to bed.　　　 　 would （had） rather sb. did sth.　表示‘宁愿某人做某事’。例如： Id rather you came tomorrow. 4） wish, wonder, think, hope 等用过去时，作试探性的询问、请求、建议等，而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。 Mrs. Darby lived in Kentucky for seven years. （含义：达比太太已不再住在肯塔基州。） Mrs. Darby has lived in Kentucky for seven years. （含义：现在还住在肯塔基州，有可能指刚离去） 注意： 用过去时表示现在，表示委婉语气。 1）动词want, hope, wonder, think, intend 等。例如： Did you want anything else? 　　　 I wondered if you could help me. 2）情态动词 could, would。例如： 　　　 Could you lend me your bike? used to / be/get 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。例如： 　　Mother used not to be so forgetful be used to + doing： 对……已感到习惯，或习惯于，to是介词，后需加名词或动名词。例如： 　　He is used to a vegetarian diet.　　 　　Scarf is used to taking a walk. 3.一般将来时 1)shall/will Which paragraph shall I read first？ Will you be at home at seven this evening? 2) be going to +不定式，表示将来。 　 a. 主语的意图，即将做某事。例如：What are you going to do tomorrow? 　 b. 计划，安排要发生的事。例如：The play is going to be produced next month。 3）　be +不定式表将来，按计划或正式安排将发生的事。例如： We are to discuss the report next Saturday. 注意：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。例如： 　 I am to play football tomorrow afternoon.　　明天下午我去踢球。（客观安排） 　 Im going to play football tomorrow afternoon. 明天下午我想去踢球。（主观安排