Unit6语法 2023-2024学年沪教牛津版（广州深圳沈阳通用）英语八年级上册

八年级上Unit6语法：现在完成时和过去式的区别 课前小测 一、单词拼写 1. China is an old country with rich c__________. 2. I got the first prize in the match, and my parents were very g__________ about that. 3. Italians don't use c__________ at meals. They use forks and knives. 4. They have invited many g__________ to the party. 5. Everyone should r__________ the old. 6. Jack i__________ me to the pleasure of skiing. 7. She will study in America as an e__________ student next year. 8. It took us three weeks to t__________ around Europe. 9. If you don' t work hard, you won't achieve s__________. 10. The film Jurassic World is very f__________. I love it very much. 八年级上Unit6语法：现在完成时和过去式的区别 一、since 和for的现在完成时 表示过去已经开始持续到现在的动作或状态常用的时间状语有：for, since, how long, so far, these days等。 Since+过去点的时间，for+一段时间(数词+量词)，此划线部分用how long提问。 1、since短语或从句表示过去的动作延续至今，since之后的时间为一点。 如： Mr. Smith has worked here since 1984. 1984年以来，史密斯先生一直在这工作。 2、for短语表示动作延续多长时间，for的宾语为时间段。 如： 　　We have known each other for twenty years. 我们认识有二十年了。 I haven’t seen her for a long time. 我好久没有见到她了。 练习：用since和for填空 1) ______ two years 2) _______ two years ago 3) _______ last month 4) ______ 1999 5) _______ yesterday 6) _______ 4 o’clock 7) ______ 4 hours 8) _______ an hour ago 9) _______ we were children 10) _____ lunch time 11) ______ she left here 二、现在完成时和一般过去式的区别: 时态 现在完成时 一般过去式 定义 现在完成时用来表示动作或状态发生在过去，但它的影响现在还存在，强调的是对现在造成的影响或结果 一般过去时只是陈述过去的事实，不考虑与现在的关系。 时间 状语 for, since, ever, never, yet, before, recently, already... yesterday, last week, last year, one year ago, in 1990, just now… 动词 现在完成时的谓语动词一般是延续性动词，如: stay，live，be，teach，work，study，如果谓语是瞬间动词，则用其否定式。 一般过去时既可和瞬间动词连用，如: come, go, begin, start, finish, become, 也可和延续性动词连用，如：keep, have, know。 试比较：        I have lost my new book.  我把新书丢了。（现在还未找到）        I lost my new book yesterday. 我昨天把新书丢了。（昨天丢的，现在找到与否没说明） 课堂练习 一、单项选择 ( ) 1. They have been married __________ 4 years. A. for B. in C. on D. at ( ) 2. ---- Would you like to