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(共47張PPT)
新課標 八年級上冊
Unit 10
Section A
3a-3c
If you go to the party, you'll have a great?
學 習 目 標
Objectives
1) 學習掌握下列詞匯:
upset, taxi, advice
2）掌握含有if引導的條件狀語從句的主從復合句。
3) 能夠熟練運用所學的知識，用if來表達條件，用will
來表達結果。
upset
taxi
advice
adj. 難過；失望
n. 出租汽車；的士
n. 勸告；建議
New words
Let's read together!
Revision
Look at the pictures and make sentences with “if”.
If you go to the party with Karen and Anna, you’ll have a good time.
If you wear jeans to the party, the teachers won’t let you in.
Revision
If you take the bus to the party, you’ll be late for school.
If you don’t go to the party, you will be sorry.
Revision
If you have a robot, what will you do?
Lead-in
Free Talk
If I have a robot, I will let it…
I think I’ll take the bus to the party. If you do, you’ll be late.
I think I’ll stay at home. If you do, you’ll be sorry.
What will happen if they have the party today? If they have it today, half the class won’t come.
Should we ask people to bring food? If we ask people to bring food, they’ll just bring potato chips and chocolate.
Grammar Focus
朗讀句子
Presentation
1. 我想我將會乘公共汽車去參加聚會。
I _____ I’ll take the bus to the ______.
如果你那樣做，你將會遲到。
If you ___ , _____ be late.
2. 我想我將待在家里。
I _____ _____ stay at home.
如果你那樣做，你將會覺得很抱歉。
If you ___ , ______ ___ sorry.
Grammar focus
do you’ll
think party
根據課本內容，完成下列句子。
think I’ll
do you’ll be
3. 如果他們今天聚會，將會發生什么事？
_____ ___ _______ if they ____ the party today?
如果他們今天聚會，班里一半的學生將不會去。
If they ____ the party today, ____ the class _____
come.
4. 我們應當要求人們帶食物來嗎？
Should we ___ people to ______ food?
如果我們請人們帶食物，他們將只帶薯條和巧克力。
__ we ___ people to bring food, ______ just _____
potato chips and chocolate.
What will happen have
have
half
won’t
ask bring
If
ask
they’ll
bring
語法重點
什么是復合句？什么是主句，什么是從句，什么是條件狀語從句？條件狀語從句在時態方面有什么特點？
Grammar focus
首先明確概念
(一) if 引導的條件狀語從句
Grammar focus
主從復合句：
指的是含有兩個或兩個以上主謂結構的句子，其中一個主謂結構句子充當另一個句子的某一成分，如主語、賓語、表語、定語、狀語、同位語等。
主句：
就是在復合句中起統領作用的句子，它是全句的主體，通?？梢元毩⒋嬖凇?br/>從句：
就是在復合句中，充當主句某一成分的句子，作什么成分，就叫什么從句。從句不能獨立存在。如：?
You'll feel better after you take the pills.?


主句
時間狀語從句
條件狀語從句
在復合句中，如果從句用來作主句的狀語叫做狀語從句，若該從句表示主句動作所發生的前提或條件，則該從句被稱為條件狀語從句。整個句子稱為含有條件狀語從句的主從復合句。
Grammar focus
一、條件狀語從句的含義
Grammar focus
if 引導的從句在復合句中表示條件，作主句的條件狀語，稱為條件狀語從句，表示假如從句的動作發生，主句的動作就(不)會發生。
二、條件狀語從句的引導詞
引導條件狀語從句最常用的連詞是 if (如果;假如) , unless = if ...not，（除非；如果不）。e.g.
1) If you ask him,he will help you.　　
如果你請他幫忙，他會幫你的。
2) If you fail in the exam,you will let him down.　　
如果你考試不及格，你會讓他失望的
3) Unless it rains tomorrow, we will go to the zoo.
如果明天不下雨，我們將去公園。
4) Let's go out for a walk unless you are too tired.
如果你不太累，讓我們去散步吧！
Grammar focus
三、條件狀語從句的位置
條件狀語從句既可以放在主句之前，也可以放在主句之后。如果放在主句之前，要用逗號隔開；如果在主句之后，中間不用逗號。e.g.
如果天下雨，我們就不玩了
If it rains, we will stop playing.
We will stop playing if it rains.
Grammar focus
四、條件狀語從句的時態
（1）當主句用一般將來時時，if引導的條件狀語從句用一
般現在時，我們稱之為“主將從現”原則。
If he comes , he will bring his violin.


如果他來，就會帶來他的小提琴。


從句
主句
一般現在時
一般將來時
Grammar focus
Johnson won’t answer the phone if he _____ the number.
A. knew B. will know
C. doesn’t know D. didn’t know
典例
C
GRAMMAR
（2）如果主句含有must, may, can等情態動詞，if引導的條
件狀語從句也用一般現在時。(即主情從現)
If we start now , we can finish the work on time.


如果我們現在開始，就可以按時完成工作。


從句
主句
一般現在時
情態動詞
Grammar focus
四、條件狀語從句的時態
Grammar focus
（3）如果主句是祈使句，if引導的條件狀語從句同樣用一般
現在時。(即主祈從現)
Call me if you have any questions．


如果你有任何問題，打電話給我。


從句
主句
祈使句
一般現在時
四、條件狀語從句的時態
含有if引導的條件狀語從句的主從復合句常與“祈使句＋and/or＋陳述句(表將來)”這一句型進行轉換。在該句型中, and表順承; or表轉折，意為“否則”。 If you study hard, you will pass the exam．
= Study hard，and you will pass the exam．
If you don't study hard, you will fail the exam．
= Study hard, or you will fail the exam．
Grammar focus
五、條件狀語從句的轉換
★當主句是現在的某種時態時，if從句的時態根據實際情況而定。
eg: I don’t know if he will come to school tomorrow.
我不知道明天他是否來學校。
No one tells me if Tom went out last night.
沒人告訴我湯姆昨天晚上是否出去了。
拓展【難點】
if 作 “是否”講, 引導賓語從句的用法。
GRAMMAR
★當主句是過去的某種時態時，if從句要用過去的某種時態。
eg：Lucy asked Tom if he was afraid of dogs.
露西問湯姆他是否害怕狗。
拓展【難點】
if 作“是否”講, 引導賓語從句的用法。
GRAMMAR
— Celia, join us in the Super Summer Camp if it
_______ this weekend.
— I’d love to. But nobody knows if it _______.
A. is fine; rains B. is fine; will rain
C. will be fine; will rain D. will be fine; rains
典例
B
GRAMMAR
(二) 情態動詞should的用法
should作為情態動詞，后加動詞原形(do)；變否定句時在should 后加not，即shouldn't；變疑問句時，把should 提到主語前。
eg：What should I do if I want to be famous?
如果我想出名，我應該做什么？
GRAMMAR
should的用法：? ?
1. 表示現在或將來的責任或義務,譯作“應該”“應當” ,如：
You should do what your parents tell you. ? ?
He should do some work, but he doesn't want to.
2. 用于第一人稱疑問句，表征詢意見。如：? ?
Should I open the window??我可以開窗戶嗎？? ?
3. 表推測，暗含很大的可能,譯作“可能，該”。如：? ?
It's 4:30. They should be in New York by now.
現在是四點半，他們應該到達紐約了。? ?
GRAMMAR
—Many people play with mobile phones all day instead of reading books.
— That’s too bad. Everyone ____ be a book lover. Reading is more enjoyable.
A. may B. should C. would
典例
B
GRAMMAR
If you go to the party, what clothes will you wear? How will you go? Who will you go with?
Clothes to wear How to go Who go with
jeans take a bus family
A: Will you go to the party next week?
B: Yes, I will.
A: What clothes will you wear?
B: I think I'll wear my jeans.
A: If you do, the teachers won’t let you in.
...
Practice
Dear Su Mei,
I don’t ______ (know) what to ____ (do) about going to Mike’s birthday party tomorrow night. My parents ______ (think) I should study for my English exam next week. If I _____ (go) to the party, they _______ (be) upset. Mike ____ (tell) us to wear nice clothes,but I don’t _____ (have) any. If I _____ (wear) jeans, I ________ (look) the worst. Also, I’m not sure how to ___ (go) to the party. If I _____ (walk) ,
it _________ (take) me too long. If I _____ (take)
the taxi, it _______ (be) too expensive. Can you
give me some advice please?
Tina
Fill in the blanks with the correct forms of the verbs in
brackets.
know
do
think
go
will be
told
have
wear
will look
go
walk
will take
take
will be
Practice
Read 3a quickly and answer the questions.
1. Who wrote this letter?
2. Who is this letter for?
3. Where does Tina want to go?

4. What are the worries?
Tina
Su Mei
Mike's birthday party
What clothes to wear and how to go to the party.
Reading
Language points
1. …, they will be upset.
upset adj. 難過的；失望的；沮喪的
After she died I felt very, very?upset. ?
她去世之后，我非常非常難過。
Marta looked?upset.
瑪爾塔一副沮喪的模樣。
He was upset over her illness.
他為她的病情而不安。
advice 作“建議”講時，是不可數名詞，而suggestion是可數名詞。
一條建議: a piece of advice; a suggestion
一些建議：some advice / suggestions
advice n. 勸告；建議
2. Can you give me some advice please?
【區別】
Language points
advice的常用短語
give sb. some advice 給某人一些建議
give advice on sth. 在某方面給出建議
take/follow sb.'s advice 聽從某人的建議
ask sb. for advice 向某人征求意見
Language points
eg: My parents always give me some good advice when I am in trouble.
當我遇到困難時，父母總會給我一些好的建議。
I think you'd better follow your friend's advice.
我認為你最好聽從你朋友的建議。
- Could you please offer me some ___ in my research?
- Yes, sure.
A. idea B. message C. suggestion D. advice
D
典例
Language points
1. If I get up late tomorrow,
________________________
2. If I don’t finish my homework,
________________________________
3. If I don’t get enough exercise,
__________________________
4. I will not have enough time to study if
________________________
5. I will not make any friends if
_____________________________
Complete the sentences using your own ideas.
I’ll be late for class.
the teacher will be angry with me.
I’ll not be very healthy.
I watch TV after school.
I don’t go to my friends’ parties.
Writing
1. I will not have enough time to study.
Language points
enough “足夠的；足夠地”, 既可作形容詞,又可作副詞。當形容詞時，既可以作定語,也可以作表語。作定語置于被修飾的名詞前后均可, 前置時強調enough, 后置時強調被修飾詞；當副詞時,置于被修飾的形容詞或副詞之后, 常與不定式或介詞for連用, 在句子中作狀語, 表示程度。 如：
He is old enough to go to school. 他夠年齡去上學了。
2. If I don’t finish my homework, ….
Language points
finish “完成”, 是及物動詞，其用法是：
1) finish sth. 完成某事。如：
When are you going to finish your work?
你打算什么時候完成你的工作？
2) finish doing sth. 做完某事。如：
He finished reading the book before supper.
晚飯前他把這本書看完了。
If I get up at 9:00, I will be late.
If I am late, my friend will be angry with me.
If my friend is angry with me, I will be sad.
If you go, you will have a good time.
If you do, you will be happy.



My name is " If"
Read together.


I think I will go to the movies tonight. If I go to the movies,
I won’t finish my homework. If I don't finish my homework
…
Write a story with your group on a piece of paper. The first
person begins the story with “I think I will…” The others
add sentences with “if”. Pass the paper around twice. Then
read the story.
Group work
Group Work
I think I will go to the movies tonight. If I go to the movies, I will watch an English movie. If I watch English movies, it can help to improve my English.
If I improve my English, I will get more scores in English test. If I get more scores in English test, I will enter a better senior high school.
A model story
一、根據首字母提示或用所給詞的適當形式完成句子
1. I didn’t pass the English exam last week. I was u____ .
2. I missed the last bus so I had to take a t___ to go to school.
3. Can you give me some a_____ on how to learn English well?
4. The teacher won’t let him in if he ______(wear) jeans to the party.
5. As a member of the society, we _________(try) our best to prevent school violence.
pset
axi
dvice
wears
should try
Exercise
Exercise
6. - Can you guess if they _____ to play basketball with us?
- I think they will come if they ______ free.
A. come；are B. will come；will be
C. will come；are D. come；will be
7. Learning to write is learning to think. You will know things more clearly _____ you write them down.
A. or B. unless C. if D. whether
8. If Nick _____ home too late, he ____ his favorite cartoon.
A. gets; misses B. gets; will miss
C. will get; misses D. will get; will miss
C
C
B
Exercise
Exercise
9. - I don’t know if Sam ________ tomorrow.
- Don’t worry. I will tell you when he ______ .
A. comes; will come B. will come; comes
C. will come; will come D. comes; comes

10. If there _____ no buying and selling of animals, there
______ no killing in nature.
　　A. is; will be B. will be; will be
C. is; is D. will be; is
Exercise
Exercise
B
A
Homework
1. Finish the exercises in Workbook.
2. Recite the sentences in Grammar Focus and make
similar sentences.
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