(共16张PPT)
第三课时 Section A (Grammar Focus－4c)
现在完成时(一)
一、用括号内所给单词的正确形式填空。
1．Tom and Mike have already _________(decide) to learn Chinese on the Internet.
2．Mom，I ____________(read) these storybooks before.Can you buy me a new one
3．—Is everyone here
—No，sir.Martin ______________(not arrive) yet.He is still on the way.
decided
have read
hasn't arrived
4．Alex ____________(study) tea culture since he came to China in 2010.
5．—Mike，why are you standing outdoors
—I _________(lose) my keys.I have to wait here until my mother comes back.
has studied
have lost
二、按要求完成句子，每空一词。
1．We have seen the movie Article 20.(改为否定句)
We __________ ____ the movie Article 20.
2．I've already finished my math homework.(改为一般疑问句)
______ you finished your math homework ____？
3．Has Jim ever learned English by watching videos？(作肯定回答)
Yes，____ _____．
haven't
seen
Have
yet
he
has
4．The Greens have lived in Guiyang for five years．(对画线部分提问)
_____ ______ have the Greens lived in Guiyang
How
long
三、根据中文意思，补全英语译文。(每空限填一词，缩写算一词)
1．你已经读完这本小说了吗？
______ you _________ reading the novel
2．他已经告诉了我关于读书报告的事。
He ____ already _____ me about the book report.
3．你对我的电脑做了什么？它死机了！
What ______ you _______ to my computer？It's dead!
Have
finished
has
told
have
done
4．(湖北荆州)从那以后，苏珊成长了，更理解父母了。
Since then Susan ____ _______ up to understand her parents more.
has
grown
一、用括号内所给单词的正确形式填空。
1．I want to learn some ________(France) because I'm going to Paris on vacation next year.
2．(2024·江苏扬州)New ___________(technology) have greatly changed our lives.
3．Tom and his friend ________(hurry) to the library after school.
French
technologies
hurried
4．Tim couldn't go out to play before he finished _________(do) his homework.
5．I have two math classes today.I like math so the math classes are not ________(bore) for me at all.
doing
boring
二、根据中文意思，补全英语译文。(每空限填一词，缩写算一词)
1．他最喜欢的书籍类型是科幻小说。
His favorite kind of books is ________ _________．
2．西蒙小的时候就对太空旅行感兴趣。
Simon was ___________ ____ space travel when he was young.
3．这本故事书很有趣。我迫不及待地想看。
The storybook is very interesting.I can't wait ____ _______ it.
science
fiction
interested
in
to
read
4．王先生现在不想喝任何东西，因为他刚刚喝了些茶。
Mr.Wang would like nothing to drink now because he ____ just ________ some tea．
has
drunk
三、 阅读下面短文，从每题所给的A、B、C三个选项中选出可以填入空白处的最佳选项。
When I'm in trouble，I always take out a book and read quietly.I put my heart into it so that I can forget all the __1__ things.I have developed a habit of reading in this way.
When I was a little girl，I was interested in comic
books and storybooks.When I grew __2__ and went to
a middle school，I began to read novels，plays，
essays and so on.I found I could get __3__ from them.Little by little，I took a great interest in literature and last term I __4__ first prize in the composition contest(作文竞赛) among high school students in our city.
Reading The Emperor's New Clothes makes me __5__ a lot because of the emperor's silly and funny behavior.The Little Match Girl makes me feel __6__ because she lives a hard life.
Robinson Crusoe takes me into a strange world __7__ danger.My
favorite book is The Story of My Life because I'm deeply __8__ by Helen Keller's spirit of being strong and never giving up.Besides these，books also tell me __9__ things—how to be a brave man and how to tell the difference between right and wrong.
In a word，good books can let me know __10__ I didn't know before.So I think good books are just like my best friends.
( )1. A．interesting B．Wonderful C．unhappy
( )2.A．longer B．older C．harder
( )3.A．any B．little C．much
( )4.A．thought B．did C．won
( )5.A．laugh B．believe C．cry
( )6.A．sad B．sleepy C．tired
( )7.A．instead of B．full of C．because of
( )8.A．expected B．moved C．loved
( )9.A．other B．another C．the others
( )10.A．that B．why C．what
C
B
C
C
A
A
B
B
A
C(共27张PPT)
Unit 8 Have you read Treasure Island yet
第三课时 Section A (Grammar Focus－4c)
情景导入
Watch a video about present perfect tense!
生成新知
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
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.
What adverbs are often used with the present perfect tense
Already and yet.
含现在完成时的句子如何构成一般疑问句？
将助动词have / has放在主语之前。
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.
一、现在完成时的基本结构
现在完成时由“助动词have/has + 过去分词”构成，其基本句式结构为：
① 肯定句：主语 + have/has + 过去分词 + 其他.
I have seen this film.
② 否定句：主语 + have/has not + 过去分词 + 其他.
I have not seen this film.
③ 一般疑问句：Have/Has + 主语 + 过去分词 + 其他
肯定回答：Yes, 主语 + have/has. 否定回答：No, 主语 + haven't/hasn't.
—Have you seen the film —Yes, I have. / No, I haven't.
和主语一致
have not = haven't; has not = hasn't
have/has常可缩略为 -'ve/-'s
现在完成时(一)
二、过去分词的构成
1. 规则变化（与动词过去式规则一样，此类称作规则动词）
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
① 在元音或浊辅音后读[d],如tried [tra d],lived [l vd].
② 在清辅音后读[t],如worked [w kt]，stopped [st pt].
③ 在[t][d]后读[ d],如mended [mend d]，wanted [w nt d].
-ed的读音规则：
2. 不规则变化（此类称作不规则动词，有很多）
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P136-137 Irregular Verbs（不规则动词表） 三、现在完成时的用法
1. 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。常和 just（刚刚），already（已经），yet（还，仍然），ever（曾经），never（从未），before（以前），so far（到目前为止）等连用。
— Have you had your breakfast yet
— Yes, I have. I've just had it.
— Have you ever heard this song
— No. I've never heard it before.
Julia has collected over 100 beautiful hair clips so far.
2. 现在完成时还可以表示过去某一时间开始并一直持续到现在的动作或状态，常与“for + 时间段”或“since + 时间点 / 从句”连用，这时要用延续性动词。
They have worked in this company for 30 years.
He has been in the army since 2016.
（错：He has joined the army since 2016.）
— How long have you lived in this area
— For at least 10 years.
【特别提醒】如果要对for或since短语提问,疑问词用how long.
四、already与yet在现在完成时中的用法解析
yet 常用于否定句或疑问句句末。用于表示某事尚未发生或某情形尚未出现，或用于询问某事是否已经发生。 He hasn't finished the book yet.
Have you seen him yet
already 常用于肯定句中，用于强调某事已经开始出现；也可用于疑问句中，表示因某事的发生早于预料而感到吃惊。 They have already known each other.
Have you eaten all that food already
五、现在完成时 VS 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。
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。
— Have you been to Japan
— Yes, I have. I went there last year.
— Who did you go with
— …
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.
I’ve just drunk some tea
Have you found it
3. A: Do you know when Tom is leaving
B: ___________________. (already/leave)
A: When _____________ (leave)
B: This morning.
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)
haven’t told them yet
She has already seen the film
4b
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
loves
has
read
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!
finished
write
hasn’t read
can’t wait to do sth. “迫不及待地做某事”
will be
will
4c
Complete the chart with information about you and a friend.
A: What books have you already read
B: I’ve 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.
Experiences You Your friend Comments
Books I have already read
Movies I have already seen
Songs I have already heard
随堂检测
Ⅰ.按要求完成句子，每空一词。
1．Miss Brown has taught physics for 15 years.(改为一般疑问句，并作肯定回答)
—_______ Miss Brown _________ physics for 15 years
—_______，she has.
Has
taught
Yes
2．The soldiers have already planted some trees on the river bank.(改为否定句)
The soldiers ________ ________ any trees on the river bank yet.
3．He has planted some trees in front of his house.(对画线部分提问)
________ ________ he done in front of his house
haven't
planted
What
has
4．My friend has been away for about a month．(对画线部分提问)
________ ________has your friend been away
5．The girl bought a new dress.(改为现在完成时)
The girl ________ ________ a new dress.
How
long
has
had
Ⅱ.根据汉语意思完成句子，每空一词。
1. 人类砍伐树木，因此动物处于极大的危险之中。
People ____________ many trees, so animals are in
great danger.
2.大多数学生对科技感兴趣。
Most of the students are _____________ technology.
cut down
interested in
3. 你离开时不要把我落下。
Don’t ________ me __________ when you leave.
4. 她迫不及待地告诉了她妈妈那个好消息。
She ____________________ her mother the good
news.
couldn’t wait to tell
leave
behind
