人教版八年级英语上册 Unit 10 If you go to the party, you'll have a great time!Section A Grammar Focus-3c 课件 (共

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Unit 10 If you go to the party,
you’ll have a great time!
If you touch it, it will ______
be angry
cry
jump
laugh
What will happen if I touch(触摸) it
Guessing Game
structure
If +……, I'll / you'll+……
↘ ↙ ↘ ↙
条件
结果
If意为如果，表示条件。它所引导的句子称之为从句，用一般现在时,表示将来可能发生的动作或存在的状态。
另一个句子则为主句，用一般将来时时态。
也就是
“主将从现”
eg: If you work hard, you will be successful.
If it doesn’t rain, I will go shopping this afternoon.
这里if所引导的是真实条件句, 即所假设的条件有可能成为现实, 表达假定所假设的条件实现时会出现的情况或会采取的行为。
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
Which one？
Challenge : Super brain.
If she ___happy, she ______shopping.
is
will go
If he ____sad, he ________soccer.
is
will play
If he ____late, the teacher ________ angry with him.
is
will be
She will be late.
She is going to
walk to school.
If she _______ to school, she _____ ____ late.
walks
will
be
He won’t study hard.
He will fail in the exam.
If he _______ study hard. He ____ _____ the exam.
doesn’t
will
fail
If
sunny
have a trip
it is sunny, they will have a trip.
If
eat too much
be very fat
she eats too much,
she will be very fat.
2. if 条件状语从句中，如果主句有
must，can，may 等情态动词，从
句用___________。
例如：You must stop if the traffic
light ____ (be) red.
is
一般现在时
例如：Don’ t wait for me if I
_____ (be) late.
3. if 条件状语从句中，主句是祈使句，
从句用____________表示将来。
_________原则。
am
主祈从现
一般现在时
2. If it ____ (be) cold tomorrow, I will
wear my sweater.
3. He can go home if he ________ (finish)
his homework.
finishes
1. Put up your hands if you _____ (have)
any questions.
have
is
趁热打铁
注意: 宾语从句中的if与条件状语从句if的区别。
宾语从句中的if “是否”相当于whether, 引导宾语从句, 时态需根据语境确定。
eg:I don't know if it will rain tomorrow.
我不知道明天是否会下雨。
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_____
(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
know
do
think
go
will be
tells
have
wear
will look
go
walk
will take
take
will be
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
____________________________
I will miss the school bus.
my teacher will be angry.
I won’t be strong.
I play computer games all the day.
I always make them upset.
plete the sentences using your own ideas.
3b
仿照例子把两句话合成一句话。
Example:
a. You think you’ re going to visit New York City.
b. You will see some tall buildings.
→ If you go to visit New York City, you’ll see some tall buildings.
Practice
1. a. You think you’re going to study English hard.
b. You will do better in English.
2. a. You think you’re going to eat and drink more.
b. You will be fatter.
3. a. They think they are going to do more exercise.
b. Their health will be better.
4. a. I think you are going to let me watch TV.
b. I will stay at home.
→ If you study English hard, you’ll do better in English.
→ If you eat and drink more, you’ll be fatter.
→ Their health will be better if they do more exercise.
→ I will stay at home if you let me watch TV.
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.
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
一、用括号内所给单词的正确形式填空。
1. I’ll buy a computer if I _______ (have) enough money.
2. I’m sure if he ____(go) to the party, he ________(have) a great time.
3. You _________(not get) nervous if you ____(do ) enough exercise.
4. If she _______ (finish ) work early, she ______ (go) home.
5. If it _____(rain), we ________ (stay) at home.
6. If I ______(watch)TV this weekend, my mother _______(be)angry.
7. If he _____ (have)a strange haircut, the teachers___________(not agree).
have
goes
will have
do
finishes
will go
rains will stay
won’t get
watch
will be
has
won’t agree
1.If it rains tomorrow, we _____ visit the museum.
A. don’t do B .won’t go C .aren’t go D. didn’t go.
2. Will you go to the park if it ____ fine
A. will be B. was C. is D /
3. If you __ to school late, your teacher _____ angry with you.
come; are B. come, will be C. will come; are D. will come; will be
4. If you _____ hard, you will ___ successful.
A. work, are B. works, is C. to work, be D. work, be
5. If I ____ too much TV, my mother will _______.
A .watch, angry B .watched, be angry
C .watch, be angry D .will watch, be angry
B
C
B
二、选择
D
C