(共43张PPT)
人教版八年级上册
Section A2d&Grammar Focus
精选公开课
Unit 10 If you go to the party, you’ll have a great time.
学习掌握下列词汇： potato chips, chocolate, upset, taxi, advice
掌握正确用含if条件状语从句的主从句。
能够熟练运用所学的知识，用if来表达条件，用will来表达结果。
学习因果关系的表达和做出合理的建议。
Learning objectives
Warming-up
Let’s enjoy a song and try to dance with it.
If you're happy and you know it clap your hands
If you're happy and you know it clap your hands
If you're happy and you know it and you really want to show it
If you're happy and you know it clap your hands
If you're happy and you know it stamp your feet
If you're happy and you know it stamp your feet
If you're happy and you know it and you really want to show it
If you're happy and you know it stamp your feet
If you're happy and you know it shout “Hurray”
If you're happy and you know it shout “Hurray”
If you're happy and you know it and you really want to show it
If you're happy and you know it shout “Hurray”
If you are happy, what will you do
have a party
go bike riding
go shopping
If you have the party tonight, how will you prepare for it
When
Where
Who
Food
Games
others
...
In the music room...
all the classmates
drinks,fruit and snacks...
share stories,talent show,...
...
New drills
Listen to the conversation and answer the question.
What are Jeff and Ben talking about
They are talking about food and games for the party next week.
Read 2d carefully and answer the questions.
1.Will Ben and Jeff ask people to bring food for the party
2.What will happen if Ben and Jeff ask people to bring food
3. So what will Ben and Jeff do
4.For the games, will they give people some small gifts if they win
5.What will happen if we give people some small gifts if they win
No, they won’t.
They’ll just bring potato chips and chocolate because they’ll be too lazy to cook.
They will order food from a restaurant.
Yes, they will.
If they do so, more people will want to play the games.
Jeff: Hey, Ben. For the party next week, should we ask people to bring food
Ben: No, let’s order food from a restaurant. If we ask people to bring food, they’ll just bring potato chips and chocolate because they’ll be too lazy to cook.
Jeff: Ok. For the games, do you think we should give people some small gifts if they win
Ben: I think that’s a great idea! If we do that, more people will want to play the games.
Jeff: Yes, the games will be more exciting, too.
order…from…从…预定
too…to…太…而不能…
Listen and repeat.
2d
Language points
1.If we ask people to bring food, they’ll just bring potato
chips and chocolate…
ask sb. to do sth. 请求/要求某人做某事
ask有关的短语还有：ask for help/ sth. 请求帮助/要求某事物
ask sb.in/out 邀请某人进来/出来
ask sb. about sth. 询问某人关于某事
例：他请求医生告诉他真相。(翻译)
_________________________________
He asked the doctor to tell him the truth.
2....because they’ll be too lazy to cook.
“too+形容词/副词+to do sth.”表示“太……而不能……”。在形式上是肯定结构，但表达的却是否定意义。too后接动词原形。
拓展：too…to…可与not…enough to do（不够…而不能）以及so…that…（如此…以至于…）进行同义转换。
例： 他太小了，不能去上学。(翻译)
_________________________________
_____________________________________
_____________________________________
He is too young to go to school.
He is not old enough to go to school.
He is so young that he can’t go to school.
3.the games will be more exciting, too.
【辨析】 exciting,excited
exciting令人兴奋的,用于形容感情方面影响他人的人或事,主语一般是物或用来修饰物,在句中作表语或定语。
excited为形容词,表示“兴奋的”,多指人受到事物的影响,主语一般是人或用来修饰人,在句中作表语。
例： Are you ______ about going to Beijing
你要去北京了，感到兴奋吗？
He told us an _____________ yesterday.
他昨天给我们讲了一个使人激动的故事。
excited
exciting story
类似的还有：bored/boring;
suprised/suprising;
interested/interesting...
Ben and Jeff are planning for the party ________. The won’t ask people to bring food. ___ they ask people _______ (bring) food, they ________ (bring) potato chips and ________ because they ______ too lazy to cook. So they will _____ food from a restaurant. For the games, Ben thinks that they should give people some small gifts ___ they win. ___ they do that, _____ people ________ to play the games and the games will be ____________.
Fill in the blanks according to the conversation.
will want
more exciting
more
order
to bring
will bring
if
If
If
will be
next week
chocolate
Consolidation
Hey, Ben. For the party..., should we...
No, Let's order...from...
If..., they'll...
......
......
Role play
Role-play the conversation.
Bill is crying. What will he do to become happy again
Guessing
game
If Bill is sad, he will listen to music to become happy again.
Guessing
game
If Bill is sad, he will play basketball to become happy again.
Bill is crying. What will he do to become happy again
Guessing
game
If Bill is sad, he will watch TV to become happy again.
Bill is crying. What will he do to become happy again
Guessing
game
If Bill is sad, he will enjoy delicious food with his friends to become happy again.
Bill is crying. What will he do to become happy again
If Bill is sad, he will listen to music to become happy again.
If Bill is sad, he will play basketball to become happy again.
If Bill is sad, he will watch TV to become happy again.
If Bill is sad, he will enjoy delicious food with his friends to become happy again.
Conditional
sentences
条件状语从句
If Bill is sad, he will listen to music to become happy again.
If Bill is sad, he will play basketball to become happy again.
If Bill is sad, he will watch TV to become happy again.
If Bill is sad, he will enjoy delicious food with his friends to become happy again.
条件状语从句表示在……条件下某事才能发生，从句是主句动作发生的前提或条件，通常由连词if引导，意为“如果”。
If Bill is sad, he will listen to music to become happy again.
If Bill get up late, he will miss the school bus.
the if-clause(从句)
the main-clause(从句)
We use conditional sentences __________ ______________________________________.
用法
possible actions and the results of these actions
to talk about
If Bill is sad, he will listen to music to become happy again.
If Bill get up late, he will miss the school bus.
Bill will listen to music to become happy again if he is sad.
Bill will miss the school bus if he get up late.
从句在前，
从句后要有逗号
主句在后
从句在后，主句在前，中间没有逗号
位置
时态
If you like sightseeing, you will love it!
If you walk along the Bund, you will see many old buildings.
主句用一般将来时，从句用一般现在时，即“主将从现”。
时态
You can also see famous buildings around it if you visit People's Square.
You should study hard if you want to make your dream come true.
主句用一般将来时，从句用情态动词，即“主情从现”。
时态
Have a rest
if you feel tired.
Please let me know if she comes back.
主句用一般将来时，从句用祈使句，
即“主祈从现”。
归纳
条件
状语从句
用法
talk about possible actions and the results of these actions
位置
主句在前，从句在后，中间没有逗号。
从句在前，主句在后，中间有逗号。
时态
主将从现
主情从现
主祈从现
在条件状语从句中，if的含义为“如果”，时态是主将/情/祈从现。
当if的含义为“是否”时，时态要根据实际情况选择。
36. If you are friendly to others, you ______make more friends.(青海省)
A. would B. could C. will
34. ---We will go for a picnic if it ______ this Sunday.(湖南-湘西)
---Sounds great.
A. won't rain B.is sunny C. will be sunny
18. If you study hard, you ________ into a good senior high school.(四川-广元)
A. got B. will get C. get
中考
真题
27. If the singer ______ to Zigong ______ September 20th, please call me. (四川-自贡)
A. will get; on B. gets; on C. gets; in
36. —Let’s go climbing if it __________this Saturday.
— Good idea. But nobody knows if it_____________. (湖北-咸宁)
A. is fine; rains B. is fine; will rain
C. will be fine; rains D. will be fine; will rain
中考
真题
Grammar Focus
I think I'll take the bus to the party. ____ you do, _______ be late.
I think I'll stay at home. ____ you do, _______be sorry.
What ____happen ____they have the party today ____ they have it today, half the class _______come.
Should we ask people to bring food _____we ask people to bring food, ______ just bring potato chips and chocolate.
you'll
If
you'll
If
won't
If
they'll
If
will
if
3a
Fill in the blanks with the correct forms of the verbs in brackets.
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
know
do
think
go
will be
tells
have
wear
will look
go
walk
will take
take
will be
upset不安的
advice 建议（不可数名词）
advice意为“劝告；建议”是不可数名词，不能说a advice, 而是
a piece of advice，也因为advice是不可数名词。“两个
（则）建议”，我们通常说two pieces of advice.
注意：piece要采用复数，advice不可数，但piece可数。
我们也可以说为some pieces of advice一些建议。
如：Can you give me some advice 你能给我一些建议吗？
与advice有关的一些词组：ask advice of 向...征求意见, 请教
by sb.'s advice 依某人劝告 on sb.'s advice 依某人劝告
follow sb.'s advice 接受某人意见 give advice 劝告, 忠告
Can you give me some advice please
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 _______________________.
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
3b
Complete the sentences using your own ideas.
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.
3c
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 ...
Chain story:
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…
Exercises
Exercise
单击输入您的封面副标题
1. I think my mother ________ if she _______
free tomorrow.
A. will come; is B. comes; is
C. comes; will be D. will come; will be
2. If she likes it, she _______ it soon.
A. read B. reads
C. will read D. reading
I.单项选择题。
Exercises
Exercise
单击输入您的封面副标题
3. He will go out with you after he _______ his homework.
A. finishes B. will finish
C. is finishing D. finish
3.解析： 在after 引导的时间状语从句中，主句用一般将来时，从句用一般现在时表示将来；he为第三人称单数，故选A。
4. I will send you an e-mail as soon as I ______ in Canada.
A. arrive B. arrived
C. am arriving D. will arrive
4.【解析】本题考查状语从句的时态。当主句是将来时态时，状语从句用一般现在时来表将来，所以选择答案A。
Exercises
Exercise
单击输入您的封面副标题
II.用所给词的适当形式填空。
If he _______(come) to the party, he will have a good time.
We don’t know if it ________(rain) tomorrow; if it ________(rain), we ________(not go) out.
If it’s sunny tomorrow, Mary ___________(visit) the Great Wall.
If you _____(come) at 4:00 in the afternoon,
I _______________(begin) to be happy at 3:00.
comes
will rain
rains
won’t go
will visit
come
will/shall begin
shall多用于第一人称，单纯的表示将来，如I,we.
will多用于第二人称和第三人称；不过在交谈的过程中，will也可以用于第一人称，主要用于表达某种强烈的愿望。will做助动词时会构成将来式。
Exercises
Exercise
Exercise
III.同义句转换。
1. Hurry up, or you will not catch the bus.
_______ you ______ hurry up, you will not catch the bus.
2. Finish your homework now, and you can watch TV.
______ you ______ your homework right now, you ______ watch TV.
3. The fish may die without enough water.
_____the fish ______ have enough water, it ______die.
If don’t
If finish
can
If don’t
may
Exercises
IV.翻译句子。
1. 如果你想取得好成绩，你必须努力学习。
If you want to get good grades, you must study hard.
2. 世上无难事，只要肯登攀。
If you put your heart into it, nothing is impossible.
3. If winter comes, can spring be far behind
如果冬天来了，春天还会远吗？
Homework
Read and recite Grammar Focus.
Practice making sentences using “if clauses”.
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