Unit 8 第三课时 Section A (Grammar focus-4c) 课件【大单元教学】人教版八年级英语下册

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COMPANY SLOGAN
人教版 英语（八年级下）
Unit 8
Have you read Treasure Island yet
Section A (Grammar Focus~4c)
Lead-in
2
Practice
3
Content
Summary
5
Exercises
6
Consolidation
4
1
Learning objectives
文化意识
语言能力
思维品质
学习能力
1
Learning objectives
能够在多种语境中，通过观察归纳、语境中运用等方式，正确理解和使用现在完成时的意义和功能，叙述己经完成的事情，并与同伴交流和谈论各自所看过的书、电影和听过的歌曲。
能归纳学过的语法规则；能辨识和分析常见句式的结构特征。 能积累日常生活中常用的习惯用语和交流信息的基本表达方式。能在学习过程中积极思考，主动探究。
能够在老师的引导下，通过观察、讨论、归纳等课堂活动，探究现在完成时的语言规律，提高思维的逻辑性和深刻性，加强语言表达的准确性。
能够通过谈论和了解看过的书、电影和听过的歌曲等，提高对英语语言文化的兴趣，增强文学素养和人文素养。
Look and say!
You can use the structure “have + pp.” to describe the following pictures like this “I have already read the book Alice in Wonderland” or “I haven’t read this book yet”
Lead-in
2
Grammar Focus
Have you read Little Women yet Yes, I have./No, I haven't.
Has Tina read Treasure Island yet Yes, she has. She thinks it's fantastic.
Have you decided which book to write about yet Yes, I have. I've already finished reading it. It was really good.
How is the present perfect tense formed
have/has + 过去分词
Find the present perfect tense.
What adverbs are often used with the present perfect tense
Already and yet.
Enrich your life today,yesterday is ow is mystery
现在完成时 The Present Perfect Tense
用法:
1. 表示过去发生或已经完成的某一动作对现在造成的影响或结果。
—Have you had your lunch yet
—Yes, I have. I’ve just had it. (现在我不饿了。)
past
now
future
They have cleaned the room.
表示过去某一动作对现在造成的影响
影响
cleaned
The room is clean now.
Please use the structure “has/have done” to describe the following pictures, expressing the impact of a past action on the present
past
now
future
表示过去某一动作对现在造成的影响
影响
We have seen the film
saw the film
I know something about the film.
past
now
future
I have lost my watch.
He hasn’t seen this kind of food in his country.
They haven’t come back.
表示过去某一动作对现在造成的影响
影响
(We can’t find them now.)
(He is surprised when he sees it.)
(I don’t know the time.)
past
now
future
I have lived in Guangzhou since seven years ago.
过去某一动作持续到现在(可能会持续下去)常与since和for连用
I am still living in Guangzhou now.
lived in Guangzhou 7 years ago.
past
now
future
I have studied in this school for two years.
过去某一动作持续到现在(可能会持续下去)常与since和for连用
I am still studying here now.
studied in this school 2 years ago
二、结构：
肯定句：have/has+ V-ed
注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。
否定句：haven’t (hasn’t)＋过去分词
一般疑问句：把助动词 have或has提到主语之前
回答用 Yes, …have (has).
No, …haven’t (hasn’t).
三、标志词：
already 意为“已经”，表示在此之前或某个特定时间之前，一般用于肯定句。如：
We have already met. 我们已经见过面了。
yet 意为“还；尚未”，常用于疑问句或否定句。在疑问句中用来询问某事是否发生，在否定句中用来表示某事尚未发生但有可能发生。
—你们见过面了吗？ —我们还未见面。
—Have you met yet
—We haven’t met yet.
ever 意为“在任何时候；从来”，用于疑问句或否定句。
我们曾见过面吗？
Have we ever met
never 意为“从不”，表示否定意思。
我们从未见过面。
We’ve never met.
含义 用法 例句
already 已经 肯定句 I have already finished my homework.
just 刚刚 肯定句 She has just cleaned the kitchen.
ever 曾经 疑问句 Have you ever visited the Great Wall
never 从未 否定句 She’s never talked to a foreigner.
yet 尚未；还未 否定句、 疑问句 He has not heard from her yet.
Has Mr. Wang arrived yet
4a
Use the words in brackets to complete the conversations.
1. A: Would you like something to drink
B: No, thanks. ______________________. (just / drink some tea)
2. A: I heard you lost your key.
___________________________________ (find)
B: No, not yet.
3. A: Do you know when Tom is leaving
B: ______________________. (already / leave)
A: When _____________________ (leave)
B: This morning.
I’ve just drunk some tea
Have you found it yet
Tom/He has already left
did he leave
4. A: Is your sister going to the movies with us tonight
B: No. _____________________________. (already/see the film)
5. A: What do your parents think about our plan
B: I ____________________________. (not / tell them / yet)
She has already seen the film
have not/haven’t told them yet
Fill in the blanks with the correct forms of the words in brackets.
Sally _________ (love) reading. In the morning, she reads the newspaper and in the evening she reads books. She ________ already _________ (read) more than 100 different books! Her favorite kind of books is science fiction. She is interested in science and technology and loves to imagine what the world _______ (be) like in 50 years. She _______ (finish) reading a book about robots last week and _________ (write) a book report about it next week for her French class. Every time she is in the library, Sally looks at the many books she _____________ (not read) yet and she can’t wait to read them!
loves
has
read
will be
finished
will write
has not read
4b
4c
Complete the chart with information about you and a friend.
A: What books have you already read
B: I have already read Tom Sawyer and Harry Potter.
A: What do you think of them
B: Well, I think Harry Potter was exciting, but Tom
Sawyer was a bit boring.
You Your friend Comments
Books I have already read
Movies I have already seen
Songs I have already heard
过去分词的变化
规则变化：
1. 一般在动词词尾直接加ed。
pick → picked → picked;
wish → wished → wished;
stay → stayed → stayed
2. 以不发音的e结尾的动词后面加d。
like → liked → liked;
hope → hoped → hoped;
3. 以“辅音字母 + y”结尾的动词，变y为i，再加-ed。
study → studied → studied;
hurry → hurried → hurried;
reply → replied → replied
4. 词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。
stop → stopped → stopped
clap → clapped → clapped 拍手
不规则变化：
5. 以不变应万变。AAA 格式
let → let → let
put → put → put
read → read → read
6. ABB 格式
feel → felt → felt
keep → kept → kept
sleep → slept → slept
7. ABA 格式
come → came → come
become → became → become
8. ABC 格式
bear → bore → born
break → broke → broken
grow → grew → grown
9.AAB 格式
beat → beat → beaten
现在完成时与一般过去时
一般过去时和现在完成时所表示的动作都发生在过去，但要注
意以下区别：
现在完成时强调过去发生的动作对现在的影响或过去开始发生
一直持续到现在的动作。与特征词since, for, already, yet, ever, never, so far, up to now等连用。如：
— Would you like to see the film with me
你想和我一起去看这部电影吗？ — No. I’ve seen it twice.
不了，我已看了两遍了。（过去已看过，所以现在不想看了）
2 一般过去时强调动作在过去发生，与现在无关。与具体的表示过去时间的状语（如：yesterday, last night）连用。如：
I saw the film last night. 我昨晚看了那部电影。（仅是对过去事情的陈述）
Unit 8
Section A (Grammar Focus~4c)
重点词汇及短语：
__________________________________
__________________________________
__________________________________
__________________________________
fiction
现在完成时的综合运用：通过以上活动，我们学习了现在完成时的结构为1.____________，现在完成时的疑问句，其肯定回答是2.______________，否定回答是3.__________________。Yet用于4._______________中，already用于5._________中。
a bit
something to drink
science fiction
think about
technology
French
can't wait to do sth.
be interested in
have/has done
Yes,sb. have/has
No,sb. haven’t/hasn’t
肯定句
否定句和疑问句
more than
next week
Summary
5
一、根据句意和首字母提示完成单词。
1. The old man lives alone in an i_______ in the sea.
2. H_______ up, or you’ll be late for class.
3. The workers are making a ship with different t______ in their hand.
4. What language can you say, English or F______
5. Some animals can live both in the sea and on the l______.
sland
urry
ools
rench
and
Exercises
6
二、按要求写句子。
1 The woman has found her bag.
(1) （改为否定句）
(2) （改为一般疑问句并作肯定回答）
2 They have completed their homework.
(1) （改为否定句）
(2) （改为一般疑问句并作否定回答）
The woman hasn’t found her bag
Has the woman found her bag Yes, she has.
They haven’t completed their homework
Yes,he has.
He has cleaned the room
Have they completed their homework No, they haven’t
3 Has he cleaned the room
(1) （作肯定回答）
(2) （写出肯定句）
4 Have they lost their way
(1) （作否定回答）
(2) （写出否定句）
No, they haven’t
They haven’t lost their way.
Have they completed their homework
No, they haven’t
三、根据提示汉译英：
— 杰克已经买了新手机吗？(yet)
.
— 没，他还没买新手机。(yet)
.
(2) — 你曾参观过博物馆吗 (ever)
.
— 没，我没有。我从未参观过博物馆。(never)
— 你曾在图书馆借过书没有？(ever)
.
— 有啊，我借过。我已借了三次了。(already)
Has Jack bought a new mobile phone yet
No, he hasn’t bought a new mobile phone yet.
Have you ever visited a museum
No, I haven’t. I’ve never visited a museum
Have you ever borrowed books from the library
Yes, I have. I’ve already borrowed books three times
好好学习，天天向上！
Good, good study，day, day up!