Unit 1 Understanding ideas -grammar现在完成时课件2026-2027学年外研版英语八年级上册

该初中英语课件聚焦现在完成时，涵盖结构（have/has+过去分词）、用法（过去经历对现在影响、持续动作）、时间标志词及与一般过去时的区别。通过阅读材料例句引导学生观察动词形式和共同点，搭建从具体实例到抽象规则的学习支架。 其亮点在于融合语言能力与思维品质培养，以自我接纳主题为情境，通过对比选择练习（如区分现在完成时与一般过去时句子）提升辨析能力，设计结对问答活动（如谈论个人成长经历）强化语言应用。资料结构系统，助力学生在真实语境中掌握语法，也为教师提供清晰教学路径，提高课堂效率。

Unit 1 This is me Grammar Present Perfect Tense Understand the basic structure of the present perfect tense: have/has + past participle. Use the present perfect tense to talk about past experiences that have an impact on the present. Distinguish between the present perfect tense and the simple past tense. Apply the present perfect tense in the context of self-acceptance and personal growth Learning Objectives By the end of the lesson, I will be able to... Read the sentences from the reading passage and summarise the grammar rules. (a) I haven't told Maddie yet... (b) I have already learnt that I am what I am. (c) She has made me realise that everyone is special and different." What do they have in common? What is the verb form in each sentence? When do you think we use this tense?  Present Perfect Tense：have/has + past participle 现在完成时谓语由“助动词have/has+动词的过去分词”构成。 （1）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。常与just、already、yet、ever、so far等连用。 past future now The train has left.（火车已经开走了 → 现在赶不上了） She has cooked dinner.（她做完饭了 → 现在可以吃了） Presentation - Structure & Rules  Present Perfect Tense：have/has + past participle （2）表示从过去开始一直持续到现在的动作或状态，可能还会继续进行下去。 past future now I have lived here for ten years. 我已经在这里住十年了。 十年前搬到这儿居住，一直持续到现在，大概率还会继续住下去。 She has studied English since 2018. 她从 2018 年开始学英语。 2018 年开启学英语这件事，持续到如今，现在依旧在学习。 Form Structure Example Affirmative Subject + have/has + past participle I have accepted myself. Negative Subject + have/has + not + past participle I haven't told anyone. Interrogative Have/Has + subject + past participle? Have you ever felt nervous? have not常缩写为haven’t /ˈhævnt/ has not常缩写为hasn’t/ˈhæznt/ the Basic Structures already: used in affirmative sentences (mid-position: after have/has or at the end) → I have already finished. yet: used in negative sentences and questions (end position) → I haven't finished yet. / Have you finished yet? ever: used in questions (mid-position) → Have you ever been to Beijing? never: used in negative meaning (mid-position) → I have never been there. just: used for recent actions (mid-position) → I have just arrived. the use of time markers（时间标志词） already（已经）、yet（已经；还）、just（刚刚）、ever（曾经）、never（从不） Think and share 表示自从...... 表示动作持续了多长时 for+时间段; 表示次数的短语 once 一次 twice 两次 three times 三次 several times 几次 表示过去时间的副词 since+过去时间点; since+时间段+ago; since+ 一般过去时的句子 the use of time markers（时间标志词） before 以前 just 刚刚 so far/up to now/till now 到目前为止 in the past/last few years 在过去的几年里 Past Participles过去分词 （1）Regular verbs: add *-ed* （与过去式相同） 规则 原形一过去式一过去分词 help — helped — helped； clean — cleaned — cleaned move — moved — moved； die — died — died study — studied — studied； carry — carried — carried stop — stopped — stopped； plan — planned — planned 在动词后加-ed 以字母e结尾的动词，只加-d “辅音字母+y”，变y为i，加-ed 以重读闭音节结尾，末尾只有一个辅音字母，双写该辅音字母，再加-ed Past Participles过去分词 （2）Irregular verbs: no fixed rule 类别 原形一过去式一过去分词 A — A — A read — read — read；cut — cut — cut； cost — cost — cost；put — put — put A — B — B think — thought — thought；lose — lost — lost； shoot — shot — shot A — B — C see — saw — seen；take — took — taken； ring — rang — rung A — B — A run — ran — run；come — came — come P152-156  Form & Meaning She has ______ (change) a lot since last year. I have ______ (learn) to love myself. They have ______ (not / tell) me the truth yet. ______ you ever ______ (feel) nervous in front of others? He has ______ (make) great progress. Students complete the sentences with the correct past participle form of the verbs in brackets. a) I have accepted myself. (I accept myself now.) b) I accepted myself yesterday. (Just a past event.) a) She has visited Paris three times. (She knows Paris well.) b) She visited Paris last year. (She went there in the past.) Present pairs of sentences and asks students choose the correct one.  Form & Meaning Do you know the key difference? Present Perfect: focuses on the present result of a past action. Simple Past: focuses on a completed action in the past with no connection to the present. 现在完成时 动作发生在过去，重点强调对当下造成的结果 / 影响，不搭配明确过去时间词 I have just watched this movie. 我刚看完这部电影。 深层含义：我清楚剧情，现在可以和你讨论内容（关联当下） 一般过去时 动作发生在过去某个精准时间点，只陈述过去事实，和现在无关联，常带明确过去时间状语 I watched this movie yesterday. 我昨天看了这部电影。 深层含义：仅说明昨天发生过看电影这件事，不提现在是否记得剧情 现在完成时 Present Perfect Tense 现在 过去 将来 一般过去时 Simple Past Tense 现在 过去 将来 从过去开始已经完成的延续性动作 过去某个时间点发生的动作 Rewrite the underlined sentences 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. Check your answer have always been have learnt have always sat have always said Production - Use in Context  Students work in pairs and take turns asking and answering: A: Have you ever felt unhappy about yourself? B: Yes, I have. I have sometimes felt nervous about my appearance. A: Have you accepted it now? B: Yes, I have learned to accept myself. Alternative questions: Have you ever tried something new? Have you ever made a mistake and learned from it? Have you ever changed your opinion about yourself? Structure: have/has + past participle Use: past action → present result Time markers: already, yet, ever, never, just Difference: Present Perfect vs. Simple Past Context: Self-acceptance, personal growth Summary: $