REVISION LESSON Cang Qiao school Cao Li( 曹丽 ) Class 5 Grade 9

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If I stick a pin into a balloon, it bursts. Definite result 必然的结果 What happens if I stick a pin into a balloon? We use if sentences to talk about results that will certainly happen.

Possible actions 1 If you take a fish out of water, 2 If you cool water, 3 If you boil water, 4 If you heat metal, 5 If you put wood into water, 6 If you plant seeds in soil, 7 If you drop a glass 8 If you do not give plants water, Definite results a it melts. b it dies. c they grow. d it turns into ice. e they die. f it breaks. g it becomes steam. h it floats. Read if sentences and match the possible actions with the definite results.

If you do not give plants water, they die. Definite result 必然的结果 the simple present tense 一般现在时 do die We use if sentences to talk about results that will certainly happen. In these sentences, both verbs are in______________________ Plants die if you do not give them water., the simple present tense. 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. 1 If you cool water, 2 If you boil water, 3 If you heat metal, 4 If you put wood into water, 5 If you plant seeds in soil, 6 If you drop a glass on the ground 7 If you do not give plants water, S1: What happen(s) if you______________________? S2:___________. S1: Are you sure? S2: Of course I’m sure._______________,_____________. S1: What happens if you take a fish out of water? S2: It dies. S1: Are you sure? S2: Of course I’m sure. If you take a fish out of water, it dies. it…( turn )into ice it …(become) steam. it …(melt). it …(float). they …(grow). it …(break). they…( die).

Look and say If you take a fish out of water, it__________. Plants________________ if you don’t give them water. dies die

________________________________ they grow. _______________________ it floats. If you plant seeds in soil, If you put wood into water,

If you boil water, it becomes steam. If you drop a glass on the ground, it breaks.

Think and say -- brainstorm Start Stage 1 Stage 2 Stage 3 Stage 4

If you are happy Let’s enjoy the song :

What will you do if you’re happy? If I’m happy, I will ____________. If I’m happy, I will ______________. clap my hands stamp my feet … …

If you want to improve your memory, what will you do? Possible result 可能的结果 In if sentences, The verb in the if clause is in________________________. The verb in the other clause is in ____________________. Here actions have results that will possibly happen. the simple present tensethe simple future tense the simple present tense the simple future tense 主将从现 If we use link method, we will improve our memory.will improveuse

1. If I ______ free, I’ll see you tomorrow. A. am B. will be C. was D. / 2. If you heat ice, it_________ water. A. will turn into B. turns into C. turn into D. turned into 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. A. cools/turns into B. cool/will turn into C. cool/ turns into D. cool /would turn possible result definite result possible result definite result

be hungry eat some food If I ____________, I will _____________. am hungryeat some food Look and say

be tired have a rest Look and say If I_____________, I will_____________. am tired have a rest

Look and say do more exercise have a strong body If I ____________, I _______________. do more exercise will have a strong body

rain watch TV at homeplay basketball If it rains tomorrow, I _________________________. will watch TV at home I won’t________________. play basketball If it _____________ tomorrow, I will play basketball. I__________________________. doesn’t rain won’t watch TV at home Look and say

William has a lot of problems, please give him some good advice. ？ William’s problem

I worry so much about my schoolwork. ---If ___________________ you won’t_______________ ____________ You always work hard! you always work hard, worry about your schoolwork. William’s problem

I always feel tired in the mornings. go to bed earlier If__________________________ ___________________________ you go to bed earlier, you won’t feel tired in the mornings. William’s problem

I sometimes forget to take the right books to school. ---If______________________ ___________,you__________ __________________________ check your timetable, every night you check your timetable every nightwon’t forget to take the right books to school. William’s problem

---If you look it up in the dictionary, you will know the meaning of the word. I don’t know what this word means. 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 William’s problem

Carol is giving advice to William. What is she saying? Use the pictures and the words in brackets to help you. ______________ the wheel round, it _______________ more easily. The seeds________________ _______________ in the soil. If you make will turn will grow if you plant them (make/turn) (grow/plant)

___________another wing, it __________. If you put on will fly ______________ your jumper, you ___________ so cold. If you put on will not feel(put on/fly) (put on/not feel)

The meat _____________ ___________ in the fridge. won’t go bad if you put it You _______________ ___________ your glasses. (see better/wear) will see better If you wear (not go bad/put)

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If William doesn’t wear glasses, what will happen to him? If William doesn’t wear glasses, he won’t see clearly. _______William wears glasses, he won’t see clearly.Unless 除非 … 否则 … if…not =unless Ifdoesn’t

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, unless sentence Unless you clean your teeth regularly, you will have toothache. ________________________________ 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 unless sentence This room will get hot if you don’t turn on the air-conditioner soon. 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.

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. Match the beginnings of the sentences in Column A with the endings in Column B.

1 have breakfast A: It’s important for us to have breakfast before going to school. B: You’re right. If we don’t have breakfast before going to school, ______________________________. A: I agree with you. Unless ______________________, we won’t have healthy bodies. we won’t have healthy bodies we have breakfast Complete and say healthy body

2 A: It’s important for us to do eye exercises every day. B: You’re right. If we don’t_______________________every day, __________________________. A: I agree with you. Unless ___________________________, we will become short-sighted. do eye exercises become short-sighted we will become short-sighted we do eye exercises every day Complete and say do eye exercises

3 A: It’s important for us to__________________ ______. B: You’re right. If we ______________________ _______,__________________________. A: I agree with you. Unless___________________________, we ____________________. take the doctor’s advice get better we won’t get better we take the doctor’s advice Complete and say take the doctor’s don’t take the doctor’s won’t get better advice

Think and say -- brainstorm  If …  Unless...

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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） 同义句转换 If I finish my homework,my mother _____ _____ me to play computer games. will allow 主将从现

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） ______ I ____ find my bike, I will have to walk to school every day. Unless can 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） 同义句转换 If you ______ ______some water with you, you will get thirsty when you run. don’t take 主将从现

4.Unless you keep ice-cream in a fridge, it melts. (2012 年青浦区一模题 ) ___ you ______ keep ice-cream in a fridge, it melts. Ifdon’t If…not=unless 同义句转换

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? II. Challenge yourself (use if/unless to make at least two sentences)

Stage 1 Stage 2 Stage 3 Stage 4 Start

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。 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. If it rains tomorrow, we won't go on a picnic. 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.