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(共41张PPT)
The present perfect tense
2026年新人教版八年级英语下册教学课件★★Unit 7
能够理解现在完成时的表意功能，总结和归纳现在完成时不同句式的构成，掌握现在完成时的助动词have和has与不同人称代词及否定词not的缩略形式；能够识别并恰当使用现在完成时的标志性副词ever、never、already、just和yet。
能够在语境中正确使用现在完成时表达意义，通过与一般现在时和一般过去时对比，深入理解并掌握现在完成时的用法。
能够在完成语法练习同时了解更多文学名著，体会阅读的意义，并通过调查同学的阅读经历相互激励，激发阅读的动力。
v. 推荐；建议
recommend
society
n. 社会；社团
literary
adj. 文学的；文学上的
base
v. 以……为基础（或根据）
n.根基；基础；根据地
base sth. on sth.
以……为基础（或根据）
My friend recommended a literary magazine to me. It is based on real stories from our society.
我的朋友向我推荐了一本文学杂志。它基于我们社会中的真实故事。
A: Have you found your lost key
B: Yes, I’ve already found it. Thank you.
A: Do you know where Anna is Have you seen her
B: Yes, I’ve just seen her.
A: What have you eaten for breakfast
B: I’ve just eaten some fruit and a sandwich.
A: Have you ever ridden a horse
B: No, I’ve never ridden a horse.
A: Has your sister done her homework
B: I’m afraid not. She’s just gone out.
A: Has your brother taken the medicine
B: Yes, he’s already taken it.
Look at the sentences. Pay attention to the tense. Can you find the structure
助动词 have / has + 过去分词
现在完成时
现在完成时的句式结构的特点是什么？
现在完成时有哪些功能？
与现在完成时连用的常见副词有哪些？
副词的用法有什么特点？
Read the sentences and underline the present perfect forms of the verbs. Pay attention to the meanings of the red words.
Have you decided on a book for your report Yes, I have. / No, I haven't.
Has Peter ever heard of this book No, he's never heard of it.
Has Chen Jie read this book yet No, but she's already borrowed it from the library.
What have you read recently I've just finished The Romance of the Three Kingdoms.
I've = I have she's = she has haven't = have not hasn't = has not 现在完成时
现在完成时的构成
助动词have / has +动词的过去分词。
动词过去分词的构成有规则构成和不规则构成两类。
规则构成：动词过去分词的构成与其过去式的构成相同，如：cheer → cheered，invite → invited, step → stepped，carry → carried等。
不规则构成需牢记，如：do → done，choose → chosen，fly → flown 等。
【语境应用】请写出下列不规则动词的过去分词。
be → _________ become → _________ do → _________
eat → _________ fall → _________ give → _________
hide → _________ know → _________ lie → _________
rise → _________ run → _________ sing → _________
steal → _________ tell → _________ wear → _________
understand → _________ write→ _________
been
understood
stolen
risen
hidden
eaten
become
done
fallen
given
known
lain
run
sung
told
worn
written
现在完成时的用法
现在完成时可表示过去发生或已经完成的动作对现在造成的影响或结果。
e.g. I have done the dishes.
(强调餐具已经洗干净了)
Sam has found a good way to solve the problem.
(强调已经找到了解决问题的方法)
否定句：
主语+ have / has + not +动词的过去分词.
(其中have not = haven’t; has not = hasn’t)
e.g. I haven’t done the dishes.
Sam hasn’t found a good way to solve the problem.
一般疑问句及其简略回答：
Have / Has +主语+动词的过去分词
肯定回答：Yes, 主语(人称代词主格) + have / has.
否定回答：No, 主语(人称代词主格) + haven’t / hasn’t.
e.g. —Have you done the dishes
—Yes, I have. / No, I haven’t.
—Has Sam found a good way to solve the problem
—Yes, he has. / No, he hasn’t.
【语境应用】Ⅰ. 根据括号内的要求完成下列各题，每空一词 (含缩略形式)。
1) I have received the invitation to the concert. (改为否定句)
I ________ ________ the invitation to the concert.
2) Dad has turned off the lights in the house. (改为一般疑问句)
________ Dad ________ ________ the lights in the house
3) —Have they worked out the math problem (补全否定答语)
—________, they ________.
haven’t received
Has turned off
No haven’t
Ⅱ. 将所给汉语句子翻译成英语。
1) 我叔叔把那辆车卖了。
2) 我把那本书还给图书馆了。
3) 你找到你的手机了吗？
4) 你弟弟做完作业了吗？
My uncle has sold the car.
I have returned the book to the library.
Have you found your mobile phone
Has your brother finished his homework
just, already, ever, never和yet常与现在完成时连用。
already常用在肯定句中，意为“已经”；
yet常用在否定句和疑问句，放在句末，意为“尚未”；
ever意为“曾经”；never意为“从未”；just意为“刚刚”。
e.g. Sara has just read the novel.
We have already watched that film.
—Have you ever made a model plane
—No. But I have ever made a model car.
Lisa hasn’t heard from her cousin yet.
I’ve never read Journey to the West.
【语境应用】选用already或yet完成下列句子。
1) Tom hasn’t had breakfast ________.
2) Have you done your homework ________
3) I have ________ met him several times.
4) Have you been back ________ You stayed there for only two days.
yet
already
already
yet
Complete the conversations with ever, never, just, already, or yet.
1. A: Have you ______ heard of the book The Little Prince
B: No, I’ve ______ heard of it.
A: I’ve ______ finished reading it. It’s such a simple story, but you can learn a lot from it!
2. A: Have you chosen a book for your book report ______
B: Yes, I’ve chosen The Little Match Girl. It’s such a sad story, but I love it. I’ve ______ started writing my report.
ever
never
just
yet
already
3. A: I’ve ______ read a classic novel before.
Could you recommend one
B: Well, I’ve ______ finished Outlaws of the
Marsh. It’s really good!
A: Oh, thanks! Could I borrow it
B: Sure!
never
just
The Little Prince (1943)
It is a modern classic by the French aviator (飞行员) and writer Antoine de Saint-Exupéry (1900–1944). It is a fantasy story about a prince who travels from planet to planet, learning about adult behaviour. During his journey, he discovers the importance of love, friendship, and seeing with one’s heart, not just one’s eyes. The book has been a great success, selling millions of copies.
It is a fairy tale by the Danish author Hans Christian Andersen (1805–1875). It is a sad story about a poor girl trying to sell matches on a cold New Year’s Eve. Andersen was a prolific (多产的) writer, creating some of the most famous fairy tales of all time, such as The Emperor’s New Clothes, The Ugly Duckling, and The Snow Queen.
The Little Match Girl (1845)
现在完成时和一般过去时
时态 基本结构 意义 时间状语
现在完成时 助动词have / has+过去分词 过去发生的动作或存在的状态与现在有关，持续到现在或对现在有影响。 already, never, ever, just, yet, so far, since ..., for, in the past / last ...
一般过去时 过去式 只表示过去发生的动作或存在的状态，与现在没有联系。 yesterday, at that time, just now, last ..., ... ago
e.g. Fu Xing has worked at a nursing home since last year.
付兴从去年开始就在一家养老院工作。
（她现在还在那里工作。）
Fu Xing worked at a nursing home last year.
付兴去年在一家养老院工作。
（不涉及她现在是否还在那里工作。）
I have watched the movie before. 我以前看过这部电影。
I watched the movie last week. 我上周看了这部电影。
【语境应用】根据句意及括号内所给词的提示填空。
1. My cousin __________(work) here since seven o’clock, but she is going to leave in ten minutes.
2. They __________(fly) to Hainan on holiday last week.
3. We __________(wait) at the restaurant for about an hour, and then we left.
4. My father plans to buy a new car. He __________(have) the old one for seven years.
5. His uncle is a vegetarian (素食者). He __________(not eat) meat since he was a child.
has worked
flew
has had
waited
hasn’t eaten
Complete the passage with the simple past or present perfect forms of the verbs in brackets. And think about these questions.
What did the author decide to do at the start of this year
Which book did the author begin with
How many books has the author read so far
What has the author learnt from reading these books
How has this experience changed the author’s understanding of the world
________ you ever ________ (try) to read books from different countries At the start of this year, I ________ (decide) to read books from as many
countries as possible. I ________ (begin)
with The Adventures of Tom Sawyer.
Now I ________ already ________ (read)
twenty different books.
Have
tried
decided
began
have
read
These books __________ (teach) me a lot about other cultures and societies, and they __________ (allow) me to see the world differently. In the past, I only __________ (know) the names of different countries, but now I understand them a little bit better. This experience has been amazing so far. I never __________ (realize) how big our world really is!
have taught
have allowed
knew
realized
It is a novel by the American author Mark Twain (1835–1910). Tom is an orphan, and the book follows him growing up on the Mississippi River. He has many adventures with his friend Huckleberry Finn. The sequel, Adventures of Huckleberry Finn (1885), was even more successful. The novelist Ernest Hemingway said, “All modern American literature comes from one book by Mark Twain called Huckleberry Finn.”
The Adventures of Tome Sawyer (1876)
Interview your classmates and find out who has done these activities.
read all four Chinese literary classics
read a book in a different language
read a book with more than 500 pages
watched a movie based on a novel
read a book more than twice
joined a reading club
Have you read all four Chinese literary classics (yet)
Have you (ever) read a book in a different language
Have you (ever) read a book with more than 500 pages
Have you (ever) watched a movie based on a novel
Have you (ever) read a book more than twice
Have you (ever) joined a reading club
recommend v. 推荐；建议
1. Could you recommend one 你可以推荐一本吗？
recommend sth. to sb. 推荐某物给某人
recommend doing sth. 建议做某事
recommend sb. to do sth. 建议某人做某事
e.g. She was recommended for the post by a colleague.
她是由同事推荐到这个岗位的。
I recommend Ann to see a lawyer.
我建议Ann去找个律师。
They recommended reading the book before seeing the movie.
他们建议先看这本书，再去看这部电影。
I recommend the book to all my students.
我向我所有的学生都推荐这本书。
【语境应用】翻译下面句子。
1) 如果你去北京，我建议参观长城。
2) 我建议你看一下这部电影。
3) 你可以给我推荐一家好的餐馆吗？
If you go to Beijing, I recommend visiting the Great Wall.
I recommend you to see this film.
Could you recommend me a good restaurant /
Could you recommend a good restaurant to me
2. read all four Chinese literary classics
读了中国四大文学名著。
e.g. He won a prize for his literary achievements.
他因文学成就而获奖。
literary adj. 文学的；文学上的
literature n. 文学
【语境应用】单项选择。
She has a strong interest in ______ works, especially poems.
A. historical B. literary
C. scientific D. social
base v. 以……为基础（或根据）
base sth. on sth. 或 sth. be based on sth.
3. watched a movie based on a novel
看了一部根据一本小说改编的电影
e.g. He based his ideas on scientific experiments.
他的想法是以科学实验为基础的。
This movie is based on a true story.
这部电影是根据真实故事改编的。
base n. 根基；基础；根据地
e.g. The base of the house is strong.
房子的地基很牢固。
Nice is an excellent base for exploring the French.
尼斯是探索法国的绝佳大本营。
The family base was important to my development.
家庭基础对我的成长很重要。
【语境应用】翻译下面句子。
1) 这台灯的底座很重。
The lamp has a heavy base.
2) 这些政策受到广泛支持。
These policies have a wide base of support.
3) 这部小说是以历史事实为根据的。
This novel is based on historical facts.
1. 构成：助动词have / has +过去分词
2. 用法：
表示过去发生或已经完成的动作对现在造成的影响或结果。
延续性动词的现在完成时可表示过去某一时间开始并一直持续到现在(包括“现在”在内)的动作或状态。
3. 可以与already，yet，just，ever, never等连用。
现在完成时
I can
理解现在完成时的表意功能，总结和归纳现在完成时不同句式的构成，掌握现在完成时的助动词have和has与不同人称代词及否定词not的缩略形式；能够识别并恰当使用现在完成时的标志性副词ever、never、already、just和yet。
在语境中正确使用现在完成时表达意义，通过与一般现在时和一般过去时对比，深入理解并掌握现在完成时的用法。
在完成语法练习同时了解更多文学名著，体会阅读的意义，并通过调查同学的阅读经历相互激励，激发阅读的动力。
Review
Grammar Focus.
Preview Section B.
Read the new words.
Read the story.
Ask ten classmates, do a survey.
Question about experience Yes, … No, …
1. Have you ever swum over 1,000 metres
…

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