unit10 If you go to the party, you'll have a great time! sectionA-3a-3c ((共19张PPT))

(共19张PPT)
Unit 10 If you go to the party, you'll have a great time!
Section A 3a-3c
学习if引导的条件状语从句的用法
Learning Objectives
根据课本内容，完成下列句子。
1. 我想我将会乘公共汽车去参加聚会。
I _____ I’ll take the bus to the ______.
2. 如果你那样做，你将会迟到。
If you _____, _____ be late.
3. 我想我将待在家里。
I _____ _____ stay at home.
do you’ll
think party
think I’ll
4. 如果你那样做，你将会觉得很抱歉。
If you ____, ______ ____ sorry.
5. 如果他们今天聚会，将会发生什么事？
_____ ___ _______ if they _____ the party today
6. 如果他们今天聚会，班里一半的学生将不会去。
If they ______ the party today, ______ the class _______ come.
do you’ll be
What will happen have
have half won’t
7. 我们应当要求人们带食物来吗？
Should we ______ people to ______ food
8. 如果我们要求人们带食物来时，他们将会只带薯条和巧克力。
___ we ____ people to bring food, ______ just ______ potato chips and chocolate.
ask bring
If ask
they’ll bring
Presentation
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.
[if引导的条件状语从句]
Grammar focus
I will have a good time tomorrow.
I will go to the party tomorrow.
If I go to the party tomorrow, I’ll have a good time.
合并
在句子中作条件状语的从句被称为条件状语从句。If引导一个条件状语从句当主句是一般将来时时, if引导的从句必须用现在时来，表示将来可能发生的动作或存在的状态。
用法
if条件句的主句和从句的时态搭配一般有下面几种情况：
1．主句是______________，if从句用____________。
If he runs, he'll get there in time.
如果跑的话，他就会及时赶到那儿。
I will tell her the answer if she asks me.
如果她问我，我就会告诉她答案。
一般将来时
一般现在时
2．主句是含有may/might/can/must/should等情态动词的句子，if从句用一般现在时。
If it stops snowing, we can go out.
如果雪停了，我们就可以出去。
If you want to lose weight, you must/should eat less bread.如果想减肥，你必须/应该少吃面包。
3．主句是祈使句，if从句用一般现在时。
Don't go to play football if you don't finish your homework.如果你没完成作业，就不要去踢足球。
[拓展] if还可以译为“是否”，用来引导宾语从句。此时if和whether是同义词，可以互换。如果or not放在whether所引导的从句句尾，则可以用if来替换。但当or not紧跟在whether之后时，只能用whether。
She asked me if/ whether I knew Mike (or not)．
她问我是否认识迈克。
I wonder whether or not he will come to my party. 我想知道他是否会来参加我的聚会。
Fill in the blanks with the correct forms of the verbs in brackets.
3a
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)
know
do
think
go
will 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) a taxi, it _________ (be) too expensive. Can you give me some advice please
Tina
told
have
wear
will look
go
walk
take
will take
will be
3
2
1
To go or not to go
What to wear
How to get there
How many problems does Tina meet
If she goes to the party ,
her parents will be upset.
If she wears jeans ,
she will look the worst
If she walks, it will take her too long.
If she takes a taxi, it will be expensive.
3b
Complete the sentences using your own ideas.
1. If I get up late tomorrow, _______________
_____________________.
2. If I don’t finish my homework, ___________
_____________________.
the school bus
will be angry
my teacher
I will miss
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 ______________
________________________.
be strong
computer games all the day
make them upset
I play
I won’t
I always
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…
3c
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.
Summary
GOOD JOB