Unit1 This is me语法讲义2026-2027学年外研版英语八年级上册

本讲义聚焦初中英语八年级上册Unit1语法模块核心知识点现在完成时，从定义（表示过去发生行为对现在的影响）出发，系统梳理谓语动词构成（have/has+过去分词）、句型（肯定、否定、一般疑问句）、过去分词变化（规则与不规则）及时间标志词（just、already等），并通过对比表格明晰与一般过去时在概念、结构和标志词上的差异，构建完整知识支架。 该资料亮点在于设计多样化巩固练习（填空、选择、动词填空、句型转换）提升语言能力，对比表格助力思维品质发展（分析比较），练习循序渐进培养学习能力。课中辅助教师清晰授课，课后帮助学生通过分层练习查漏补缺，强化语法应用与知识内化。

八上Unit1 This is me -- Grammar 现在完成时 1、 定义：表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种影响。 2、 观察例句，归纳谓语动词构成及各种句型 (1) I have seen the film. I do not want to see it again. 这部电影我已经看过了，不想再看了。 (2) I have entered lots of competitions. 我参加过很多比赛。 (3) Have you ever won any prizes before? 你以前得过奖吗? (4) My aunt has travelled all over the world. 我姑姑已经周游了世界。 (5) I haven’t seen this movie yet. 我还没有看过这部电影。 · 动词构成： have/has+ 动词过去分词 否定形式： have/has not(haven’t/ hasn’t) + 过去分词 · 句型： 肯定句： 主语+ have/ has + 动词过去分词 + 其他. 否定句： 主语+ have not(haven’t)/ has not(hasn’t) +动词过去分词+其他. 一般疑问句：Have/Has + 主语+动词过去分词+其他？ · 动词过去分词 大部分动词过去分词的变化方式是有规则的： 变化规则如动词过去式一样，在词尾+ed。 部分动词的变化是不规则的，例如： 3、 时间标志词 现在完成时常与just, already, yet, ever, never, before, so far, recently连用。 4、 现在完成时 VS 一般过去时 现在完成时 一般过去时 概念理解 重点在于已完成动作对现在的影响 过去某一具体时间发生的事情 动词形式/结构 have/has + done did(动词过去式) 时间标志词 just, already, yet, ever, never, before, so far, recently yesterday, two days ago, last+时间，just now 【巩固练习】 一、用 have /has 填空 1. I ________ watched this cartoon before. 2. My mother ________ visited many big cities. 3. ________ you ever climbed a mountain? 4. They ________ not finished their homework yet. 5. Tony ________ never eaten strawberries. （二）选词填空（already /yet） 1. I have ________ read this story. 2. Have you visited the museum ________? 3. She hasn’t seen the film ________. 4. We have ________ cleaned our classroom. 5. They haven’t won any prizes ________. 二、单项选择 1. My sister ________ lots of new friends so far. A. make B. has made C. made 2. —Have you read the story ______? —Yes, I have ______ read it. A. yet; already B. already; yet C. yet; yet 3. My aunt ______ all over the world so far. A. travels B. has travelled C. travelled 4. My aunt ______ all over the world three years ago. A. travels B. has travelled C. travelled 5. —______ you ever ______ any prizes in competitions? A. Do; win B. Have; won C. Did; win 6. I ______ this film yesterday, so I don’t want to watch it again. A. have seen B. saw C. see 7. I ______ this film before, so I don’t want to watch it again. A. have seen B. saw C. see 8. They ______ their homework yet. A. haven’t finished B. have finished C. didn’t finish 9. Look! Tony has ______ eaten strawberries. He loves them. A. yet B. already C. just now 10. We ______ lots of sports recently. A. do B. did C. have done 11. I went to the library ______, so I know the new books well. A. before B. yesterday C. already 12. —Has your sister found her pen ______? —Yes, she has ______ found it. A. already; yet B. ever; never C.yet; already 13. He ______ to Beijing last summer, and he ______ many cities so far. A. went; has visited B. has gone; visited C. went; visited 14. —I can’t find my ruler. —I ______ it on the desk. Look! A. find B. just found C.have just found 15. I ______ never ______ to a big concert. A. have; be B. have; been C. did; be 三、用所给动词的正确形式填空 1. I ________ already ________ (see) this movie. I don’t want to watch it again. 2. I ________ (see) this movie last Sunday. 3. She ________ not ________ (enter) any competitions yet. 4. She ________ (enter) many competitions last term. 5. ________ you ever ________ (travel) around China? 6. He ________ (travel) to Shanghai two years ago. 7. We ________ (do) lots of sports so far. 8. We ________ (do) sports yesterday afternoon. 9. My sister ________ just ________ (find) her lost pen. 10. She ________ (find) her pen ten minutes ago. 四、句型转换。 1. I have seen the film.（改为否定句） I ________ ________ the film ________. 2. He has entered lots of competitions.（改为一般疑问句） ________ he ________ lots of competitions? 3. My aunt travelled all over the world in 2021.（改为现在完成时） My aunt ________ ________ all over the world. 4. They won a prize last week.（改为现在完成时，用 ever 改写） ________ they ________ ________ any prizes? 参考答案 一、1. have 2. has 3. Have 4. have 5. has （二）1. already 2. yet 3. yet 4. already 5.yet 二、1-5 BABCB 6-10 BAABC 11-15 BCACB 三、1. have; seen 2. saw 3. has; entered 4. entered 5. Have; travelled 6. travelled 7. have done 8. did 9. has; found 10. found 四、1. haven’t seen; yet 2. Has; entered 3. has travelled 4. Have; ever won 1 学科网（北京）股份有限公司 $