(共22张PPT)
Unit 10 If you come to my party, you’ll have a great time! Section A
If 引导的条件状语从句
定义
条件状语从句表示主句动作发生的条件。
If “如果”
注意
主句时态
从句的时态
If引导的从句是一个完整的句子,一定要有主语
if 引导的条件状语从句:
1.意为“如果;假如”, 表示在某种条件下某事很可能发生。如:
If the red light is on, wait a minute.
2. if 和条件句位置灵活,可放在句首,也可直接放在主句后面,若 if 条件句放句首,从句后面要加逗号,和主句隔开。如:
Print the text if you like it.
If you like the text, print it.
If you want to turn on the recorder, press button A.
Press button A if you want to turn on the recorder.
A
B
C
D
E
F
II
pause
stop
play fast
play back
play
record
--If you want to play,
If you want to play back,
If you want to record,
--How do I play/ play back/record/….
press the green button.
press the blue and red buttons.
press the blue button.
/ in the library
quiet / keep
read books/
If you want to read books in the library, keep quiet.
Join the sentences with if:
your hands/put up /answer the question
If you want to answer the question,
put up your hands.
If引导的条件状语从句,主语是祈使句,从句用一般现在时态。
“主祈从现”
Complete the sentences.
1.If you ____ (want) to listen to music, _____ (choose) a CD.
2.If you ___ (buy) a new camera, ____(get) a good one.
3.If the light ___________ (not come) on, ____ (wait) for one minute.
4.If it ___________ (not work) , _____ (wait) a minute and then _____(try) again.
5.If you ________ (not know) how to use the camera, ____ (read) the instructions.
want
choose
buy
get
doesn’t come
wait
wait
doesn’t work
try
don’t know
read
Look and Guess
If he _____ Wei Mingliang, he will become a new CUBA star.
beats
Wei Mingliang
(魏明亮)
What a pity! Sandy can’t play the ____ because she is ___.
solo
ill
If people catch the _____, they will ______ him.
punish
thief
If they ___ (be) free, I ________(go) shopping with them.
2. What ____ you do if you ____ (find) a panda in danger
3. If it ___________ (not rain) tomorrow, we _________(go )there by bike.
are
will go
will
find
doesn’t rain
will go
if “ 引导的条件状语从句的用法,现在总结一下: 1.if引导的条件状语从句,主句用一般将来时,从句用一般现在时代替将来。
2.“主祈从现”
3.if 条件句不一般,几个要点记心间; 条件句,放在前,逗号要放句中间。 条件句表可能,主句多用将来时;
句型:if条件状语从句+一般将来时态
If you are ill, you will…
Speaking
If you are too fat, you will…
I argued with(与…争吵)
my best friend.
If I argue with my best
friend, I will…
:
What will you do if…
If I have a lot of pocket money,
I will ___________ .
pocket money
I will _______if I have a lot of pocket money.
help poor children
Piggy bank (存钱罐)
If 引导的条件状语从句
If引导的宾语从句
If引导的宾语从句就是在复合句中作宾语的名词性从句,通常放在主句谓语动词(及物动词)或介词之后。翻译成“是否”
if引导的条件状语从句中,if是个从属连词,引导的句子是主句动作发生的条件,一般与后面的句子用逗号隔开,翻译为“如果”。 “如果”
If you have enough money(pocket money) what will you do
If I have enough money,
I will travel around the world