Unit 1 第2课时 Grammar(讲解课件)-【优翼·学练优】2026-2027学年八年级英语上册同步备课（外研版·新教材）

该初中英语课件聚焦现在完成时，通过视频片段导入含“have/has+V-ed”结构的台词，引导学生发现动词形式共同点，结合例句、语法规则、句型结构及与一般过去时对比，构建从感知到应用的学习支架。 其亮点在于融合语言能力与思维品质培养，视频导入激活语境感知，对比两种时态用法差异，任务型活动结合“接受外貌经历”对话，辅以不规则动词表及语篇练习，助力学生在真实语境中运用语法，提升自我表达能力，教师可直接利用结构化资源实施高效教学。

I wasn't happy with my eyes before. Why there's small. I dreamt of having big guys. What do you think of your eyes now? I've learned a lot from the text. We need to accept our looks. That's good to hear. My eyes are small, but they are part of me. They make me special. You're right. How about you? Unit 1 This is me Grammar Learning Objectives In this lesson, you will: 1.master the usage of the present perfect tense. 2.distinguish the present perfect tense and past simple tense. 3.talk about the experience of accepting your looks. Lead in Watch the video clips and pay attention to the characters’ lines. They all contain the structure ”have/has+V-ed”. What do the two sentences have in common in the verb form? Read and Think I haven't told Maddie the whole story yet . I have already learnt that I am what I am. have/has +动词的过去分词 Do you know what tense they are in? 现在完成时（Present Perfect Tense） Examples (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) Many people have agreed to help us.许多人都同意帮助我们。 Grammar Rules 现在完成时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。谓语动词由“have/has+动词的过去分词”构成，常与这些副词及短语连用：just, already, yet, recently, before, ever, never, twice, so far等。 e.g. — Have you had your breakfast yet? — Yes, I have. I've just had it. e.g. Julia has collected over 100 beautiful hair clips so far. 现在完成时的句型结构 句式 结构 肯定句 否定句 一般 疑问句 特殊 疑问句 have/has可缩略为 -'ve/-'s have not = haven't; has not = hasn't 主语 + have/has + 过去分词 + 其他. 主语 + have/has not + 过去分词 + 其他. Have/Has + 主语 + 过去分词 + 其他? 特殊疑问词+have/has + 主语 + 过去分词 + 其他? 过去分词的规则变化 一般在词尾直接加 -ed 以不发音的e结尾的，加-d 以“辅音字母+y”结尾的，改y为i加-ed 重读闭音节以一个辅音字母结尾的，双写这个辅音字母后加-ed work→worked slice→sliced study→studied stop→stopped -ed的读音规则： ① 在元音或浊辅音后读[d]，如tried [traɪd]，lived [lɪvd]。 ② 在清辅音后读[t]，如worked [wɜːkt]，stopped [stɒpt]。 ③ 在[t][d]后读[ɪd]，如mended [mendɪd]，wanted [wɒntɪd]。 过去分词的不规则变化 原形（不定式） 过去式 过去分词 be was/were been have had had choose chose chosen put put put run ran run 参看课本P152-156 Irregular Verbs（不规则动词表） just用来表示“刚刚”, already用来表示“已经”，两者都用于肯定句中，一般是置于have / has之后。在否定句中则可以用yet，表示 “还未”,有“以后可能会”的含义。 just/already/yet用法区别 e.g. I have just heard the news. 我刚听到消息。 Astronauts have already been to the moon. 宇航员已经去过 月球了。 Man has not discovered any life in space yet. 人类尚未在太 空中发现任何生命。 现在完成时&一般过去时 现在完成时表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况，因此不能和表示过去的时间状语连用。 e.g. I have already done my homework.（不能用last night等） I've been to Paris before.（不能用last year等） 2.一般过去时只表示过去的动作和状态，与现在无关。可以和表示过去的时间状语连用。 I did my homework last night. When did you go to Paris? （when一定不要和现在完成时连用） 3. 日常对话中通常两种时态配合使用，开始提到一件事做没做或发生过时用现在完成时，说起这件事具体情形时用一般过去时。 e.g. — Have you been to Japan? — Yes, I have. I went there last year. — Who did you go with? — … Grammar Exercises 1 I / just / cut my long hair _____________________________________________ 2 She / never / worry about / her looks _____________________________________________ 3 I / just / paint a beautiful flower / on my face _____________________________________________ 4 Chris / always / wear / a pair of glasses _____________________________________________ 5 Jessica / already / change her opinion / on her looks _____________________________________________ Write sentences with the present perfect tense. Jessica has already changed her opinion on her looks. I have just cut my long hair.  She has never worried about her looks. I have just painted a beautiful flower on my face. Chris has always worn a pair of glasses. Complete the passage using the present perfect tense. I 1_______________ (always, be) the tallest student in my class. And I 2________________(always, sit) in the last row at school. People always look at me in surprise. "You must be good at basketball," my classmates 3______________ (always, say). In fact, I'm not good at basketball at all. But being tall is not always bad. It makes me easy to recognise, and I can help other people get things down. Over time, I 4_______________(learn) to accept my height. I'm proud of myself. have always been  have always sat  have always said  have learned  Work in pairs. Discuss the experience of accepting your looks. Use the words from the reading passage and the useful expressions to help you. I was not happy with my... ... is a good way to... What do you think of... now? Useful expressions For example,... I have already... Why not...? EXPERIENCE OF ACCEPTING YOURSELF Which part of your looks are you not happy with? How did you feel about it before? I have freckles all over my nose and cheeks. When I was younger, I hated them. My classmates sometimes called me "spotty face," and I felt embarrassed and uncomfortable. How do you feel about it now? Why did you change your view of it? But now, I don’t mind them anymore. Some of my friends even say they look cute, like little sun kisses.  I have already realized that freckles are a part of who I am—they make me unique. I stopped comparing myself to others and learned that beauty isn’t about having "perfect" skin. What can you learn from this experience? This experience taught me that accepting myself is much happier than trying to change what I can’t control. I have freckles all over my nose and cheeks. When I was younger, I hated them. My classmates sometimes called me "spotty face" , and I felt embarrassed. I tried covering them with makeup or avoiding the sun, hoping they would fade. But now, I don’t mind them anymore. Some of my friends even say they look cute, like little sun kisses. I have realized that freckles are a part of who I am—they make me unique. I stopped comparing myself to others and learned that beauty isn’t about having "perfect" skin. Now, I focus on things that make me confident, like my smile or my kindness. This experience taught me that accepting myself is much happier than trying to change what I can’t control. 声 明 本文件著作权为创作公司所有，仅限于教师教学及其他非商业性和非盈利性用途。如发现盗用、转卖、网络传播等侵权行为，本公司将依法追究其相应法律责任。 部分素材选自网络，如有争议，请联系删改。 $He's your uncle. I've never been sick . before. Hello, darkness, smile, friend, i've come to talk with you again. I've made changes for . you track. Think about that. How long have been gone? Two weeks, one day, fifteen hours. i've coming to say goodbye. Commuting to work by . bike has risen by about sixty percent in ten years. Alice has escaped. I've made a decision. We're going to that, man. Have you every image? A future . with me. my dream has come true. Thank you. The manor at boom is ruined everything. This is mad. Their mother has not eaten for five months and has lost half her body weight. Something wonderful has happened any other night. I miss . you so much.