人教版八年级上册Unit 10 If you go to the party, you'll have a great time! 语法讲练课件(共46张PPT，内嵌视频)

(共46张PPT)
人教版 七年级上册
Unit 10
If you go to the party,
you’ll have a great time!
语法讲练
Revision:
穿牛仔裤去派对
在家呆着
乘公交去派对
明天晚上
玩得开心
谈论
在星期五晚上
看录象
下礼拜的派对
从饭店点食物
太懒而不做饭
wear jeans to the party
stay at home
take the bus to the party
tomorrow night
have a great time
talk about
on Friday evening
watch a video
the party next week
order food from a restaurant
too lazy to cook
A guessing game
What will happen if I touch(触摸) it
If you touch(碰)it, it will _________
get angry
Will it …
cry
say hi ~
be happy
1. 我想我将会乘公共汽车去参加聚会。
I think _____ _____ _____ _____ to the party.
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.
4. 如果你那样做，你将会觉得很遗憾。
If you ____, ______ ____ sorry.
I'll take a bus
do you’ll
think I'll
do you'll be
Grammar Focus
Grammar Focus
Grammar Focus
根据课本内容，完成下列句子。
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.
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.
What will happen have
have half won't
ask bring
If ask
they'll bring
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 you take the bus to the party, you’ll be late.
If you stay at home, you’ll be sorry.
为避免重复,条件状语从句常用助动词do(does/did)来替代上文所提到的动作。
Grammar Focus
If you do, you’ll be late.
If you do, you’ll be sorry.
If they have it today, half the class won’t come.
If we ask people to bring food, they’ll just bring potato chips and chocolate.
简单句
简单句
If
If 是连词，意思是如果；假若；倘若
通常表示假设，表示将会发生和可能发生的事，或进行提醒警告。
If you do, you’ll be late.
If you do, you’ll be sorry.
If they have it today, half the class won’t come.
If we ask people to bring food, they’ll just bring potato chips and chocolate.
从句
主句
如果……, 将会……
一般现在时
一般将来时
类别 构成 例句
简单句 The Simple Sentence 由一个主语（或并列主语）和一个谓语（或并列谓语）构成的句子。 I get up at six in the morning.
My mother and I often go shopping.
Some students walk or ride bikes to school.
复合句 The Complex Sentence 由一个主句和一个或多个从句构成的句子。 What do you want to be when you grow up
I think (that) Screen City has the most comfortable seats.
语法重点 ：一、句子的类型
语法重点 ：二、if引导的条件状语从句
If you wear jeans to the party,
the teachers won’t let you in.
If you stay at home,
you will be sorry.
If you take the bus to the party,
you will be late.
If you go to the party with Karen and Ann,
you will have a great time.
If
条
件
状
语
从
句
If条件状语从句
用 。
主句用
。
从句
主句
从句
主句
从句
主句
从句
主句
一般现在时态
一般现将来时态
主将从现
if条件状语从句的定义：if引导的从句在复合句中表示条件，作主句的条件状语，称为条件状语从句，表示假如从句的动作发生，主句的动作就(不)会发生。
if条件状语从句的位置：
if引导的条件状语从句既可以放在主句前，也可以放在主语后，若if从句在主句前，用逗号与主句隔开；若if从句在主句后，中间不用任何符号。
句子结构：If+从句main clause，主句。=主句+if+从句 。
（从句谈论可能的活动，主句谈论可能的结果）
It will be sunny tomorrow.
We will have a trip tomorrow.
We will have a trip if it is sunny tomorrow.
If it is sunny tomorrow, we will have a trip.
主句在前从句紧跟其后
从句在前时，用“,”与主句隔开
If you wear jeans to the party, the teachers won’t let you in.
The teachers won’t let you in if you wear jeans to the party.
If you stay at home, you will be sorry.
You will be sorry if you stay at home.
从句
主句
从句
主句
从句
主句
从句
主句
从句
主句
if从句，主句.
=主句if从句.
If引导的条件状语从句的时态:
1.当主句用一般将来时时，if引导的条件状语从句用一般现在时。 (即主将从现)
注意：if引导的条件状语从句通常不用一般将来时。
If he _____ (get) up late,he_____ (be) late for school.
如果你想聊天，打我电话。
If it_____ (rain) tomorrow，I _________ (stay) at home.
如果明天下雨，我将呆在家里。
改同义句：
He will be late for school if he gets up late.
I'll stay at home if it rains tomorrow.
gets
will be
rains
will stay
2.如果主句是祈使句，那么从句通常要用一般现在时the simple present tense。 (即主祈从现)
If you _____ (want) to have a chat ,_____ (call) me up.
如果你想聊天，打我电话。
__________ (not wait) for me if I _____ (be) late.
如果我迟到，就别等我。
改同义句：
want
call
Don't wait
am
Call me up if you want to have a chat.
If I am late,don't wait for me.
注意：if引导的条件状语从句通常不用一般将来时。
3.如果主句是含有must，can，may 等情态动词时，根据需要从句多用一般现在时the simple present tense。(即主情从现)
You can _____ the exam if you _____ (work) hard.
如果你努力学习，你就能通过这次考试。
You must _____ if the traffic light ____ (be) red.
如果交通灯是红色，你必须停下来。
改同义句：
pass
work
stop
is
If you work hard,you can pass the exam.
If the traffic light is red,you must stop.
注意：if引导的条件状语从句通常不用一般将来时。
4.表示真实条件、客观真理、自然现象、定理定义、 民间谚语等，句型是：If + 句子 （一般现在时 ），+ 主句 （ 一般现在时）.(即主现从现)
必然的结果
the result that will certainly happen
如果温度低于零摄氏度, 水就会变成冰。
If the temperaturet____ below zero, water ____ (turn) into ice.
=Water ____(turn) into ice if the temperature____below zero.
is
turns
turns
is
if 条件句不一般，几个要点记心间；
条件句，放在前，逗号要居中间；
条件句表可能，主句多用将来时；
条件句表事实，主句常用现在时。
注意：
1.if还可以用于宾语从句中，表示“是否”，相当于 whether，引导宾语从句，时态需根据语境确定。
如：I don't know if he will come tomorrow. If he comes，I will tell you.我不知道他明天是否会来。如果他来，我就会告诉你。(前一个if表示“是否”，引导宾语从句； 后一个if表示“如果”，引导条件状语从句)
2.If条件句的同义句：
（1）借助“祈使句+and/or +句子（一般将来时结构）”这一句型来转换。其中，在句意上and表示顺承；or表示转折，意为“否则”。即祈使句，and /or+将来时态的陈述句。
Work hard ,and you will make great progress.（and 并且）
=If you work hard,you will make great progress.
如果你努力学习，你才会取得大的进步。
Hurry up, or you will be late.（or 否则）
=If you don't hurry up. you will be late.
如果你不快点，你就要迟到了。
（2）借助without或with来转换条件状语从句。
If there is no water, fish will die.=Fish will die without water.
2. He can go home if he finishes his homework.
1. Put up your hands if you have any questions.
主祈从现
主情从现
时态总结：主+将来时态 + if 从 现
主+情态动词 + 动原 + if 从 现
祈使句 + if 从 现
If he (be) happy,
He (go) fishing.
is
will go
He will go fishing if he is happy.
If he (be) angry,
He (play) basketball with friends.
is
will play
He will play basketball with friends if he is angry.
If she (have) a lot of money,
She (buy) a large house.
has
will buy
She will buy a large house if she has a lot of money.
If he (eat) too much ,
He (be) fat.
eats
will be
He will be fat if he eats too much.
no war, the world, more beautiful
If there is no war, the world will be more beautiful.
not rain, go hiking, this afternoon
If it doesn’t rain, we will go hiking this afternoon.
he, have free time, go to Shanghai
If he has free time, he will go to Shanghai.
句型转换
1. They will invite me. I’ll go to the party. (用if合并为含有条件状语从句的复合句，且从句在前)
2. I’ll come back late this evening. Don’t wait for me to have dinner. (用if合并为含有条件状语从句的复合句，且从句在后)
If they invite me, I will go to the party.
Don’t wait for me to have dinner if I come back late this evening.
1) Put up your hands if you _____ (have) any questions.
2) If it ____ (be) cold tomorrow, I will wear my sweater.
3) He can go home if he ________ (finish) his homework.
4) 如果他来了，我们会让你知道的。
If he ________, we ________ you know.
5) 如果天不下雨，她会开车来我家的。
If it ___________, she _________ to my home.
finishes
have
is
【语境应用】完成句子。
comes will let
doesn't rain will drive
单项选择。
1) _______ we deal with our problems, we can easily become unhappy.
A. Until B. If C. Unless D. Though
C
解析：Unless we deal with our problems, we can easily become unhappy.
= ____ we ______ deal with our problems, we can easily become unhappy.
If don’t
2) —Mrs. Li, will you be angry _______ your students don’t obey the rules in class
—A little. But I will stop them in a friendly way.
A. if B. unless C. though
3) _______ you drive, you mustn’t drink wine at all.
A. If B. Unless C. Though
4) You will see many aunts dancing together on the square if it _______ in the evening.
A. doesn’t rain B. rains
C. will rain D. won’t rain
A
A
A
If he _____ (go) to the movies, he won’t finish his work.
If I _________ (become) a doctor, I will help others.
If we _______ (have ) time, we will go to the park tomorrow.
If you ______ (fight) at the party, you __________ (have) to leave.
If it ____________ (not rain), he _______ (go) shopping.
doesn’t rain
will go
用所给词的适当形式填空：
goes
become
have
fight
will have
1. —Mrs Li, will you be angry ________ your students don’t follow the rules in class
—A little. But I will stop them in a friendly way.
A. if B. unless C. though
2. ________ you drive, you mustn’t drink wine at all.
A. If B. Unless C. Though
A
A
3. You will see many people dancing on the square if it ________ in the evening.
A. doesn’t rain B. rains
C. will rain D. won’t rain
A
1. You need to practise speaking every day _______ you hope to improve your spoken English. (2021 江苏南京)
A. if B. although C. unless D. until
2. Jason will go to visit his grandparents _______ he finishes his work this weekend. (2021 贵州安顺)
A. unless B. though C. if
A
C
1. _____, you will get good grades. (2020湖南湘西中考)
A. If you will work hard
B. If you work hard
C. If you worked hard
2. You will feel cold _______ you don’t wear a coat. (2020 甘肃金昌)
A. so B. though C. if D. unless
3. Our school basketball team will win the next match (比赛) _______ they practice more. (2020 江苏淮安)
A. if B. before C. though D. while
4. — Let’s go climbing Langshan Mountain this Saturday _______ the weather is fine. (2019 湖南邵阳)
—Good idea!
A. though B. if C. unless
B
C
A
B
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) a taxi, it ______ (be) too expensive. Can you give me some advice please
Tina
3a
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
give sb some advice 给某人一些建议
advice 不可数名词
Complete the sentences using your own ideas.
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
____________________________
3b
I’ll be late for school.
my parents will be upset.
I’ll become very heavy.
I play chess after school every day.
I don’t go to my friends’ parties.
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 ...
It is called “Chain Reaction(连锁反应)” or “Butterfly Effect（蝴蝶效应）”.
Fun time now!
Chain story:
If I get up at 9:00 tomorrow, I’ll be late. If I am late, the teacher will be very angry. If the teacher is very angry, he will call my mother. If he calls my mother, she will cry. If she cries, I will be sad. If I am sad, I will eat a lot. If I eat a lot, I will be very fat. If I am very fat, I won’t be handsome. If…
Modal
Chain story:
If I stay at home all the day, I’ll have time to work hard at home. If I work hard at home every day, I will get better grades. If I get better grades, I will go to a better high school. If I go to a better high school, I will go to a better university. If I go to a better university, I will find a better job. If I find a better job, I will make more money. If I make more money, I will …
Modal
Chain story:
If I play games all the day, I’ll have no time to do my school work. If I don’t do my schoolwork, my teacher will be very angry. If my teacher is very angry, he will call my mother. If he calls my mother, she will be sad. If she is sad, I will be sad. If I am sad, I will eat a lot. If I eat a lot, I will be very fat. If I am very fat, I won’t look nice. If…
Ⅰ. 根据句意及括号内所给词语的提示填空。
1. We ____________ (go) to the beach if it ____________ (not rain) this afternoon.
2. If Maria ____________ (get) good exam results, she ____________ (travel) to Hong Kong next year.
3. ____________(call) me if you ____________ (have) any problems.
will go doesn’t rain
gets
will travel
Call have
4. They ____________ (not come) to my party if their parents ____________ (not let) them.
5. What ____________ you ____________(do) if they ____________(ask) for your help
6. If you ____________ (not leave) now, I ____________(call) the police.
will not come
will do
ask
don’t let
don’t leave will call
Ⅱ. 根据短文内容及括号内所给英文提示语补全短文。
When your parents have to leave you alone (单独) at home, what will you do to be safe (安全的) Of course, your parents are always telling you a lot of things to stay away from danger.
Don’t be bored, just listen to them. (1)_______________________________________________ (if, follow ... advice, stay away from danger). OK. Let’s see what advice your parents used to give you.
Lock the door (锁门). (2)______________________________________________________________ (if, forget, lock, after, get home, dangerous). If a stranger comes to your door, it’s best to ignore (不理会) it.
If you follow their advice, you’ll stay away from danger
If you forget to lock the door after you get home, it will be dangerous
Don’t invite a person that you don’t know well to your house. (3)___________________________________ (if, do that, be in danger). What’s more, be careful about answering new phone calls. (4)_______________________________________________ (if, number, new to you, not pick up). Make sure you can use household appliances (家用电器). (5)_______________________________________________ (if, can’t, use ... in the right way, not use).
Never tell anyone that your parents are not at home. If you need any help, call 110 or your parents right away.
If you do that, you’ll be in danger
If the number is new to you, don’t pick it up
If you can’t use them in the right way, don’t use them
1.If it rains tomorrow, we _____ visit the museum.
A. don’t do B .won’t go to
C .aren’t go to D. didn’t go to.
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.
A. 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
D
C
C
B