REVISION LESSON
Cang Qiao school
Cao Li(曹丽)
Class 5 Grade 9
Start
Stage 4
Stage 3
Stage 1
Stage 2
What happens if I stick a pin into a
balloon?
必然的结果
Definite result
If I stick a pin into a balloon, it bursts.
We use if sentences to talk about results that
will certainly happen.
Read if sentences and match the possible actions with the definite results.
Possible actions
Definite results
1 If you take a fish out of water,
a it melts.
2 If you cool water,
b it dies.
3 If you boil water,
c they grow.
4 If you heat metal,
d it turns into ice.
5 If you put wood into water,
e they die.
6 If you plant seeds in soil,
f it breaks.
7 If you drop a glass
g it becomes steam.
8 If you do not give plants water,
h it floats.
必然的结果
Definite result
die
If you do not give plants water,, they die.
the simple present tense
一般现在时
We use if sentences to talk about results that will
certainly happen. In these sentences, both verbs
are in______________________
the simple present tense.
Plants die if you do not give them water.
当if引导的条件状语从句表达必然的结果时，主句和从句都用一
般现在时。
Work in pairs. Read the dialogue below and make similar dialogues about
the other sentences in A1.
2 If you boil water,
it…( turn )into ice
it …(become) steam.
3 If you heat metal,
it …(melt).
4 If you put wood into water,
it …(float).
1 If you cool water,
they …(grow).
6 If you drop a glass on the ground it …(break).
5 If you plant seeds in soil,
7 If you do not give plants water,
they…( die).
S1:What happens
happen(s)if ifyou
you______________________?
take a fish out of water?
S2:___________.
S2:It
dies.
S1:Are you sure?
sure._______________,_____________.
S2:Of course I’m sure.
If you take a fish out of water, it dies.
Look and say
If you take a fish out of water,
it__________.
dies
die
Plants________________
if you don’t give them water .
If you plant seeds in soil,
________________________________
they grow.
If you put wood into water, it floats.
_______________________
If you boil water,
it becomes steam.
If you drop a glass on the ground ,
it breaks.
Think and say -- brainstorm
Start
Stage 4
Stage 3
Stage 1
Stage 2
If you are happy
Let’s enjoy the song :
What will you do if you’re happy?
•
•
•
•
If I’m happy, I will ____________.
clap my hands
stamp my feet
If I’m happy, I will ____________.
…
If I’m happy, I will ____________.
…
If I’m happy, I will ______________.
If you want to improve your memory,
what will you do?
可能的结果
Possible result
If we use
use link method , we will improve our memory.
the simple present tense the simple future tense
In if sentences,
the simple present tense
The verb in the if clause is in________________________.
the simple future tense
The verb in the other clause is in ____________________.
Here actions have results that will possibly happen.
主将从现
1. If I ______ free, I’ll see you tomorrow. possible result
A. am B. will be C. was
D. /
2. If you heat ice, it_________ water. definite result
A. will turn into
B. turns into
C. turn into
D. turned into possible result
3. We____ no water to drink if we ____ the earth.
A. have/ don’t protect B. will have/don’t protect
C. don’t have/will protect D. have/ protects
4. If you ____steam, it________ water. definite result
A. cools/turns into B. cool/will turn into
C. cool/ turns into D. cool /would turn
Look and say
be hungry
eat some food
am hungry
eat some food
If I ____________,
I will _____________.
Look and say
be tired
have a rest
am tired
have a rest
If I_____________,
I will_____________.
Look and say
do more exercise
have a strong body
If I ____________,
do more exercise
I will
_______________.
have a strong body
Look and say
rain
watch TV at home
play basketball
If it rains tomorrow, I _________________________.
will watch TV at home
play basketball
I won’t________________.
If it _____________
doesn’t rain tomorrow, I will play basketball.
I__________________________.
won’t watch TV at home
William’s problem
William has a lot of problems , please
give him some good advice.
？
William’s problem
I worry so much about my
schoolwork.
always work hard,
---If you
___________________
worry about your
you won’t_______________
____________
schoolwork.
You always
work hard!
William’s problem
I always feel tired in the mornings.
you go to bed earlier, you
If__________________________
won’t
feel tired in the mornings.
___________________________
go to bed earlier
William’s problem
I sometimes forget to take the
right books to school.
you check your timetable
---If______________________
every night
won’t forget
___________,you__________
to take
the right books to school.
__________________________
check your
timetable,
every night
William’s problem
I don’t know what this word means.
---If you look it up in the dictionary,
you will know the meaning of the
word.
look it up in the
dictionary
William’s problem
Sometimes I forget which things to
buy at the supermarket.
---If you write a shopping list,
you won’t forget which things
to buy at the supermarket.
write a
shopping list
Carol is giving advice to William. What is she saying? Use the
pictures and the words in brackets to help you.
If you make the wheel
______________
will turn
round, it _______________
more easily. (make/turn)
will grow if you
The seeds________________
plant them
_______________
in the soil.
(grow/plant)
If
you put on
If you put on your
___________another
wing, ______________
will fly
it __________.
(put on/fly) jumper, you ___________
will not feel
so cold. (put on/not feel)
won’t go bad
will see better
You _______________
The meat _____________
if you put it in the fridge. ___________
If you wear your glasses.
___________
(see better/wear)
(not go bad/put)
Start
Stage 4
Stage 3
Stage 1
Stage 2
If William doesn’t wear glasses,
what will happen to him?
If William doesn’t
doesn’t wear glasses, he won’t see clearly.
_______William
Unless
wears glasses, he won’t see clearly.
除非…否则… if…not = unless
you will not have toothache / you clean
your teeth regularly
If you clean your teeth regularly, you won’t have toothache.
negative sentence
________________________________
If you don’t clean your teeth regularly, you will have toothache
unless sentence
Unless you clean your teeth regularly, you will have toothache.
you close the window / flies
will not get in
If you close the window, flies will not get in.
negative sentence
If you don’t close the window , flies will get in.
unless sentence
Unless you close the window , flies will get in.
this room will not get hot / you turn
on the air-conditioner soon
This room won’t get hot if you turn on the air-conditioner
soon.
negative sentence
This room will get hot if you don’t turn on the air-conditioner
soon.
unless sentence
This room will get hot unless you turn on the air-conditioner
soon.
we will not play football / it
rains tomorrow
unless sentence
We will play football unless it rains tomorrow.
Match the beginnings of the sentences in Column A with the endings in Column B.
A
1 We’ll have a picnic
2 I’ll park the car at
Peace Place
3 Unless you want to
watch something,
4 I’m going to buy a
blouse for my
mother
5 Unless that noise
stops soon,
B
a I shall telephone the police
and complain about it.
b unless I can think of a
better idea for a present.
c if the weather is fine
tomorrow.
d I am going to switch the
television off now.
e unless the car park there is
full.
Complete and say
1
A: It’s important for us to have breakfast
before going to school.
B: You’re right. If we don’t have breakfast
have
breakfast
before going to school,
we won’t have healthy bodies
______________________________.
A: I agree with you. Unless
we have breakfast
______________________,
we won’t have
healthy bodies.
healthy
body
Complete and say
2
A: It’s important for us to do eye
exercises every day.
become
do eye exercises
don’t_______________________every
day, short-sighted
B: You’re right. If we
we will become short-sighted
__________________________.
A: I agree with you. Unless
we do eye exercises every day we will
___________________________,
become short-sighted.
do eye
exercises
Complete and say
3
A: It’s important for us
take the doctor’s
to__________________
advice
______.
don’t take the doctor’s
we won’t
B: advice
You’re right.
If we get better
______________________
take the
doctor’s advice
we,__________________________.
take the doctor’s
_______
advice
get
better
A:won’t
I agree
with
you.
Unless___________________________, we
____________________.
get
better
Think and say -- brainstorm
 If …
 Unless ...
Start
Stage 4
Stage 3
Stage 1
Stage 2
同义句转换
1. If I don’t finish my homework,my mother will not
allow me to play computer games. ( 2012年虹口区一
模题）
will _____
allow me
If I finish my homework,my mother _____
to play computer games. 主将从现
同义句转换
2.If I can’t find my bike, I’ll have to walk to
school every day.( 2012年长宁区一模题）
can find my bike, I will have to walk
Unless I ____
______
to school every day. if…not=unless
同义句转换
3. If you take some water with you, you won’t get
thirsty when you run. （2011年普陀区一模题）
If you ______
don’t ______some
take
water with you, you
will get thirsty when you run. 主将从现
同义句转换
4.Unless you keep ice-cream in a fridge, it
melts. (2012年青浦区一模题)
If you ______
don’t keep ice-cream in a fridge,
___
it melts.
If…not=unless
II. Challenge yourself
(use if/unless to make at least two sentences)
1. If you want to improve your memory, what will
you do?
2. If you want to keep fit, what will you do ?
3. What will you do if you want to study English
better?
Start
Stage 4
Stage 3
Stage 1
Stage 2
If there is a will, there is a way.
Nothing is impossible if you put your
heart into it.
1.Review the key points
2.Rewrite the sentences.
3.Translate the sentences into Chinese.
如果明天下雨的话，我们就不去野餐了。
If it rains tomorrow, we won't go on a picnic.
如果不早点起床，上学就会迟到。
If you don’t get up early, you will be late for school .
如果你想减肥，你必须少吃面包。
If you want to lose weight you must/should eat
less bread.
如果把冰加热，它就会化成水。
If you heat ice it turns to water.
除非你和足够的水，否则会感觉很渴。
You will feel thirsty unless you drink enough water.