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一般现在时 标志：动词原形 1. 表示经常性或习惯性动作，常与表频度的时间状语连用： She often speaks English. I leave home for school at 7 every morning. 2. 表示现在的状态、特征、职业、能力、感觉等： He seems to feel a bit down today. He works as a driver. 3. 表示真理、客观存在、科学事实或用于格言警句中： Shanghai lies in the east of China. Columbus proved that the earth is round. Where there is a will, there is a way. 4. 表示现在瞬间的动作： Here comes the bus! 5. 表示将来 1) 表按规定、计划、安排将要发生的动作（仅限于某些表示“来、去、动、停、开始、结束、继续”等的趋向动词），可以与表示未来的时间状语搭配使用。常见的用法是：飞机、火车、轮船、汽车等定期定点运行的交通状况。如： The next train leaves at 3 o’clock this afternoon. How often does the shuttle bus run? 2) 在时间和条件状语从句中常使用一般现在时表示将来发生的事情： When Bill comes (不用will come), ask him to wait for me. I shall go there tomorrow unless I’m too busy. 2 一般过去时 标志：动词过去式 *闭音节：元音字母a, e, i, o, u如果发字母本来的音则称为开音节，否则称为闭音节。 1. 表示过去某时所发生的动作或存在的状态，常与表示过去的时间状语连用（e.g. yesterday, this morning, just now, a moment ago, in May, last night / year / week, once upon a time, the other day, before …, when …, in the past等）。如： Jim rang you just now. Liu Ying was in America last year. 2. 表示过去经常或反复发生的动作，特别是used to do表达的句型，本身表示的就是过去常常。如： When I was a kid, I often played football in the street. She used to visit her mother once a week. *注意区分sb. used to do sth.（某人过去常常做某事，此处to是动词不定式标志符号）和sb. be used to sth./doing sth.（某人习惯于某物/做某事，此处to是介词）。 3. 代替一般现在时，表示一种婉转、客气、礼貌、商量的语气。此用法仅适用于少数动词（如want, hope, wonder, think, intend等）及情态动词could, would。如： I wondered if you could have a word with me. I hoped you could help me with my English. Would you mind my sitting here? 4. 虚拟语气中用一般过去时表示现在或将来时间的动作或状态。常用句型有： It is time that sb. did sth. “某人该做某事了” would rather sb. did sth. “宁愿某人做某事” 3 一般将来时 标志：will / shall + 动词原形 1. 表示将来发生的动作或存在的状态，通常与表示将来的时间状语连用（e.g. tomorrow, next week, in the future等）。如： We shall have a lot of rain next month. My husband will come back in a few days. (责任编辑：admin) |