牛津英语九年级上册全书语法知识汇总VIP专享

1 牛津英语九年级上册语法知识总结(绝对精品文档，价值很高，值得下载打印收藏) 2 G9 GRAMMAR 现在完成时I.现在完成时的概念。①表示过去发生的动作对现在造成的影响或结果She has been ill for three days. （她病了三天了。）②表示从过去某一时间开始一直持续到现在的动作或状态。We've known each other since we were children. （我们从小就认识。）I have been a member of the Party for 10 years. II.构成： ”助动词 have, has + 过去分词 ”现在完成时态的肯定句、否定句和疑问句形式（以work 为例）：人称肯定否定疑问回答第一人称I have seen the UFO. We have travelled around the world. I haven ’t seen the UFO. We haven’t travelled around the world. Have you seen the UFO? Have you travelled around the world? Yes, I have./ No, I haven’t.Yes, we have./ No, we haven’t.第二人称You have been to England. You haven’t been to England. Have you been to England? Yes, I/we have. No, I /we haven’t.第三人称He/She has been to Beijing. They have given concerts all over the world. He/ She hasn’t been to Beijing. They haven’t given concerts all over the world. Has he/ she been to Beijing? Have they given concerts all over the world? Yes, he/she has. No, he/she hasn’t.Yes, they have. No, they haven’t. 注：规则动词的过去分词的构成与过去是相同，不规则动词的过去分词见附表。练. 把下面变否定句、一般疑问句并作肯定和否定回答。1. I have done my homework. 否定句： _______________________________________ 一般疑问句： ___________________________________ 回答： _________________________________________ 2. The plane has arrived. 否定句： _______________________________________ 一般疑问句： ___________________________________ 回答： _________________________________________ III. 现在完成时用法归纳1. 现在完成时表示过去发生的动作现已完成，对现在造成的影响和结果。(此种用法谓语动词用结束性动词) 如： The plane has arrived. 3 常用的时间...