Unit1知识清单2023-2024学年牛津译林版八年级英语下册

Unit 1 一、现在完成时： 1．谓语构成：肯定句： have / has done 否定句： have / has not done 一般疑问句：Have / Has … done…? 2. .时间标志 : already yet never ever since for just recently 1) for 和 since的用法： ________ a day _________ 1998 ________ two weeks ________ two weeks ago 1. Jill _______________( be ) in Qinzhou since Monday. 2. Amy ______________( eat ) her food for a day . 3. I have moved to Shanghai since I _______________ ( be ) nine. 2)already用于肯定句，表示“已经”。 3) yet 用于否定句、疑问句中, 作“还，已经”解。 4) just 用于肯定句，表示“刚”常与现在完成时连用。 just now 常与一般过去时连用。 用 already或 yet填空： 1. Have they taken down the old pictures ___________?   No, not ___________. 2. Most of us have finished our compositions _____________ 3. He said he hadn’t visited the exhibition _____________. 练习： eg: 1) 肯定句：I ______already ________ China. (visit) 否定句：I _________ _________China yet. (not, visit) 一般疑问句：_________ you ________ China yet? ( visit ) 肯定回答：--- Yes, I __________. 否定回答：--- No, I ___________. 2) 肯定句：Peter _______ just ________ the film. （ see ） 否定句：Peter _________________ the film before. （not, see ） 一般疑问句：_________ Peter _________ the film before? ( see ) 肯定回答：Yes, he _________. 否定回答：No, he __________. 练习： 1.__________ Wei Fang ______________ ( come ) yet? 2. She has worked here since I _____________ here in 1999. （move） 3. _________ you ever _____________ English ? --- No, never. (learn ) 4.Mr.Green ________________ back yet. ( not, come) ( )5.I __________ the book yet. A. don’t read B. has read C. have read D. haven’t read ( )6. Miss Green, we _________ cleaning our classroom. Can we go home now? A. finish B. finishing C. have finished D. haven’t finished ( )7._________ have you lived here? --- Since I was born. A. How long B. How often C. How soon D. How far 二、词法 1. used to do sth. 过去常常做某事 get / be used to doing sth. 习惯做某事 1) Did he use _______