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(共22張PPT)
Unit 10 If you come to my party, you’ll have a great time! Section A
If 引導的條件狀語從句
定義
條件狀語從句表示主句動作發生的條件。
If “如果”
注意
主句時態
從句的時態
If引導的從句是一個完整的句子，一定要有主語
if 引導的條件狀語從句:
1.意為“如果；假如”, 表示在某種條件下某事很可能發生。如:
If the red light is on, wait a minute.
2. if 和條件句位置靈活，可放在句首,也可直接放在主句后面，若 if 條件句放句首，從句后面要加逗號，和主句隔開。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引導的條件狀語從句，主語是祈使句，從句用一般現在時態。
“主祈從現”
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 “ 引導的條件狀語從句的用法,現在總結一下: 1.if引導的條件狀語從句，主句用一般將來時,從句用一般現在時代替將來。
2.“主祈從現”
3.if 條件句不一般,幾個要點記心間; 條件句,放在前,逗號要放句中間。 條件句表可能，主句多用將來時；
句型：if條件狀語從句+一般將來時態
If you are ill, you will…
Speaking
If you are too fat, you will…
I argued with(與…爭吵)
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 (存錢罐)
If 引導的條件狀語從句
If引導的賓語從句
If引導的賓語從句就是在復合句中作賓語的名詞性從句，通常放在主句謂語動詞（及物動詞）或介詞之后。翻譯成“是否”
if引導的條件狀語從句中，if是個從屬連詞，引導的句子是主句動作發生的條件，一般與后面的句子用逗號隔開，翻譯為“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

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