Презентация на тему conditional sentences. «Conditional Sentences» презентация к уроку по английскому языку на тему. Образование предложений I типа

Conditional sentences (условные предложения) Атаян Лусине Багатуровна учитель английского языка МАОУ СОШ № 1 г.Курганинска

First conditional (П ервый тип условных предложений) Условные предложения 1 -го типа выражают вполне реальные, осуществимые предположения, которые могут произойти в будущем при каком-то условии. Глагол в придаточном предложении употребляется в Present Simple , а в главном предложении в Future Simple. If he runs , he’ ll get there in time. (Если он побежит, он придет туда вовремя) Главная часть Условная часть Future Simple Подлежащее will V If (When…) Present Simple Подлежащее V/Vs am is are have/has don’t / doesn’t V

Second conditional(Второй тип условных предложений) Условные предложения 2-го типа выражают невероятные или маловероятные предположения. Они относятся к настоящему или будущему. Глагол в придаточном предложении употребляется в Past Simple , а в главном предложении would + инфинитив смыслового глагола без to. If I took lessons seriously, I would do tests better.(Если бы я относился к урокам серьезно, я бы выполнял тесты лучше) Главная часть Условная часть Future in the Past Подлежащее would/could/might V If Past Simple Подлежащее V2 (ed) didn’t V

Third conditional(Третий тип условных предложений) Условные предложения 3-го типа выражают нереальность условия, относящегося к прошедшему времени, упущенную возможность осуществления данного условия. Сказуемое придаточного предложения выражается глаголом в Past Perfect , а сказуемое главного предложения should или would + Perfect Infinitive . Второй и т ретий тип переводятся с частицей бы If I had seen you yesterday, I would have given you the book. (Если бы я увидел тебя вчера, я бы дал тебе книгу) Главная часть Условная часть Future in the Past Подлежащее would have V3 Past Perfect Подлежащее had V3

Упражнения на закрепление I. First or S econd Conditional? Put the verbs in brackets into the correct tense. 1.They would be rather offended if I (not go) to see them. 2.If you took more exercise, you (feel) better. 3.If it (stop) snowing, we can go skiing. 4.If I was offered a job, I think ((take) it. 5.I’m sure Ann will lend you the money. I’d be very surprised if she (refuse). 6.If you (not go) away, I’ll send for the police. 7.If I sold my car, I (not get) much money for it. 8.The police (arrest) him if they catch him. 9.We (not have) any money if we didn’t work. 10.Tell Mary to ring me up if you (see) her.

II. Second or Third Conditional? Put the verbs in brackets into the correct tense. 1.If you (not be)busy, we could go for a walk. 2.If I (have) enough money, I would have taken a taxi. 3.If I were you, I (buy) a new suit. 4.If I (be) interested in the film, I would have gone to the cinema. 5.If we (not take) the wrong turning, we wouldn’t have arrived late. 6.If he had more time, he (take) up tennis. 7.You could have come first if you (run) faster. 8.If she (not have) a car, we would have to go by bus. 9.What (do) if you lost your job? 10.If I (not feel) tired, I would have gone to bed later.

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Unit 6 2º Bachillerato

Structure: A conditional sentence is composed of 2 parts: If-clause + Main Clause Example: If it rains tomorrow, we will not come. If-clause Main Clause

Types: The order of the two clauses is flexible, it’s not important. But if the if-clause comes first, it must be followed by a comma. If it rains, I’ll stay at home There are 4 types of conditional sentences. They are classified according to the degree of probability that they express. Each type of conditional sentences uses different tenses to show the difference in the degree of probability.

Zero Conditional: If /when + present tense ….. / modal Water boils if it reaches 100º First Conditional: If/unless + present,….. Future If I study, I’ll pass Second Conditional: If + past, ……would +inf. If I studied, I would pass Third Conditional: If + past perfect ….. would have + pp If I had studied, I would have passed

Tense: Present tense in both clauses Example: Present Tense Present Tense If you heat water to 100°C, it boils. If you pour oil into water, it floats.

Use: Talk about universal truth. If you heat ice, it turns to water To give commands If you aretired, go to bed! In this case the verb in the main clause is an Imperative

Tense: If-clause ~ Present Tense Main Clause ~ Future Tense Present Tense Future Tense If I feel sick tomorrow, I will not go to school. If it rains, the match will be cancelled.

Use: To speak about possible or probable future events. If the weather is as sunny tomorrow as it was today, we will go surfing. To make promises or warnings If you forget my birthday, I’ll never speak to you again. Unless is used in negative conditionals Unless we recycle more, we won’t have a better world.

Do not come If you ___________________ (not come), You ________________ (miss) the show. will miss will buy John __________________ (buy)a car if he _____________ (get) a job. gets will get Mary ________________(get) a toothache if she_________________ (eat) too many sweets. eats

If-clause ~ Past Tense Main Clause ~ would + an infinitive Tense: Example: Past Tense Would + infinitive If he were a bird, he would fly across the harbour. If I had $200,000 now, I would buy a car.

Were is often used instead of was in the 1st and 3rd person singular Second Conditionals Use: To speak about present and future situations which are unlikely to happen. If I had any money I would lend it to you. If I were you I wouldn"t do this.

If-clause ~ Past Perfect Tense Main Clause ~ Would Have + Past Participle Tense: Past Perfect Tense Would have+ Past Participle If I had had enough money, I would have bought the camera yesterday. If I had come home earlier, I would not havemissed the programme.

Use: To speak about impossible past events If they’d gone by bus, they would have arrived much later. (They didn’t go by bus) He would have travelled around the world if he had hadmore money. (Impossible to change, because he didn’t have the money)

Were If I ________________ (be) four years old, I ________________ (learn) to play the piano. would learn had not failed If I ________________ (not fail) in the examination, my mother_______________ (buy) me a new computer. would have bought would have finished 3. We ________________________ (finish) if we ________________ (have) better preparation. had had

Other connectors: Type 1: UNLESS If you don’t phone John, he’ll get very angry. Unless you phone John, he’ll get very angry. Unless can replace If in negative conditionals

Other connectors: PROVIDED / PROVIDING (THAT)/ WITH THE CONDITION THAT/ AS LONG AS You can stay with the condition that you sleep on the couch. I will go to the party as long as you go there too IMAGINE / SUPPOSE /SUPPOSING THAT Imagine that you won a million pounds, what would you do?

Other connectors: EVEN IF I won’t go to the party even if they beg me IN CASE Take an umbrella in case it rains

Conditional Sentences Variations: Type 1, 2 and 3: If we are not careful, many species may become extinct. If I were an aeroplane, I could fly in the sky. If she hadn’t worn her helmet, she might have been seriously injured.

Identifying conditionals I. Choose the correct answer. 1 - If I drink tea in the morning, it makes me feel sick. Zero Conditional First Conditional Second Conditional Third Conditional 

2 - I"ll tell her if she comes. Zero Conditional First Conditional Second Conditional Third Conditional  3 - If I were you, I"d buy it as soon as possible. Zero Conditional First Conditional Second Conditional Third Conditional 

4 - If I had the time, I’d help you Zero Conditional First Conditional Second Conditional Third Conditional  5 – I would have done things differently if I had been the manager. Zero Conditional First Conditional Second Conditional Third Conditional 

6 - If you work hard enough, you may well pass. Zero Conditional First Conditional Second Conditional Third Conditional  7 – Water boils if you heat it to a hundred degrees celsius. Zero Conditional First Conditional Second Conditional Third Conditional 

8 - I would be surprised if it rained. Zero Conditional First Conditional Second Conditional Third Conditional  9 – If she"d tried harder, she might have succeeded. Zero Conditional First Conditional Second Conditional Third Conditional 

II. Choose the correct answer. 1 - If I ...... you, I would tell him straightaway were am  2 - If you ...... yellow and blue, you get green will mix mix  3 - If I .........., I would never have done it knew had known  4 - Unless you ....... drinking, you"ll have serious health problems. stop will stop 

5 - I ......... there if I"d known about it would never have gone would never go  6 - If you see him, ......... him to call me? will you ask would you have asked  7 - If I ........., I"d have done it myself were there had been there  8 - What would you do if the police ......... you? arrested had arrested 

Finish these sentences using the correct verbal tense. If they had listened, they.............................. (understand) If he hadn’t worn the helmet, he.......................... (Be) injured. If he........................... (Speak) clearly, people would understand him. If we miss this train, we.................................. (Be) late for the interview. The bank............................................. (not / call) if we pay the bill. If you................................... (meet) Tom, you wouldn’t like him. If I found 100 in the street, I …………………….......... (Keep) it. If I ……………... (Know) her number, I would phone her. If he gets late, I ………….. (be) angry. I …………………….. (Not/buy) that coat if I were you.. If I ……………….. (Know) that you were ill last week, I"d have gone to see you. If it stops raining, we …………………. (Go) on a trip. would have understood Would have been spoke Will be Won’t call met Would keep knew Will be won’t buy had known will go

Choose the correct answer 1 If Teresa………more sensible, she wouldn’t get into trouble so often. a) will be b) were c) had been 2 ……… me some ice cream if you go to the supermarket. a) Got b) Get c) Have got 3 If I……...late, will you wait for me? a) be b) am c) will be 4 If Vanessa had……..me the truth, I would not have been so angry. a) told b) tells c) tell 5 If you listen to her, you’ll………in trouble. a) been b) being c) be 6 If you had listen to her, you……….have been in trouble. a) shouldn’t b) wouldn’t c) couldn’t 7 Nobody would……the secret if Danny hadn’t revealed it. a) have known b) knew c) known 8 Will you be all right by yourself if I………. out tonight? a) go b) will go c) would go 9 If I knew how to run my own business, I………..a rich man. a) am b) will be c) would be 10 If anyone………., say I’ll be back about 7.30. a) will phone b) phone c) phones B B B A C B A A C C

We use wishand if only +past simple/continuous or could when we want a situation or thing in the present to be different or to change. The time of the action referred to in the subordinate clause is the same as the time of making the wish. He wishes that he were rich. I wish I didn’t have to leave. I wish he was waiting for me. I wish I could help you.

We use wish + wouldto complain about a thing or a situation. She wishes that you would come to the meeting tomorrow. I wish you wouldn’t be so rude. I wish my mother would let me go out till late. Shewishes her child would sleep all night long.

We use wish / if only + past perfect / continuous or could have + p.p.to express a wish about the past They wish that they had studied harder when they were young. (they didn’t study) I wish I hadn’t failed the exam (I failed the exam)

Pay attention to the underlined adverbs indicating time. Complete each of the following sentences with the correct form of the verb shown in brackets. 1. I wish he here now. (to be) 2. I wish that you here yesterday. (to be) 3. We wish you tomorrow. (to come) 4. You will wish you earlier. (to leave) 5. They wished he with them the next day. (to come) 6. We wish you yesterday. (to arrive) were Had been Would come Would come Would come Had arrived

7. I wish that he us next year. (to visit) 8. She wishes that she at home now. (to be) 9. You wish that he you last week. (to help) Would visit were had helped were 10. He will always wish he ____________ rich. (to be) 11. The boy wished that he ____________ the competition the next day. (to win) 12. She will wish she _____________ the arrangements earlier. (to make) 13. I wish the weather ____________ warmer now. (to be) 14. We always wished we ____________ fluent in other languages. (to be) 15. They wish he ________________ them next week. (to telephone) Would win Had made were were Would telephone

Choose the correct option 1.-Meg would do better at French if she worked harder. a. Meg will never succeed at French. b. Meg is very good at French. c. Meg usually works well at French. d. Meg doesn"t work hard enough. D 2.-If the plane hadn"t been delayed by bad weather, we wouldn"t have been late a. Although the plane was late, we were on time b. The weather made us late. c. The bad weather did not interfere with the plane"s arrival. d. We were not late although the weather was bad. B

3. If you ask someone the way, you"ll find the Modern Museum of Art easily. a. Most people can tell you where the Modern Museum of Art is. b. It is very difficult to find the Modern Museum of Art, even if you ask how to get there. c. Did you find the Modern Museum of Art when you wanted to go there? d. Did you ask someone the way to the Modern Museum of Art? A 4. If I were you, I’d get a job. a. I think you should get a job. b. I need a job. c. I had a good job, but I left it. d. You are going to get a job soon. A

5. The doctor said that if Mrs Allen went on a diet, she would lose weight. a. Mrs Allen does not need to be careful with what she eats. b. Mrs Allen has always been careful with what she eats. . c. Mrs Allen should eat more. d. Mrs Allen should eat less. D 6. Jessica would have passed the exam even if I hadn"t helped her. a. Jessica passed the exam without help. b. Jessica failed because no one helped her. c. Without my help, Jessica would not have passed. d. Jessica didn"t really need any help at all. Note:For more practice click: if clauses, Conditional sentences - Grammar Exercises - Learning English D

What would you do in these situations You are alone in the forest at night without a phone. You met the genie. If I met the genie, I would ask him for my three wishes. If I were alone in the forest I would try to use the stars.

What would you do in these situations One day you read in a newspaper an article about you. The article was telling about your private life. Your favourite singer wrote a song for you. If I read an article about my private life, I’d look for a lawyer. If my fauvorite singer wrote a song for me, I’d be excited.

Write what would have happened if…. If he hadn’t gone to the park,….. he wouldn’t have met a girl. he wouldn’t have got married and wouldn’t have had three children. If he hadn’t met the girl…..

Therefore …. If he hadn’t gone to the party,….. he wouldn’t have got married.

Note: For more practice use your student’s Multi-ROM 2, Grammar section, Conditional Clauses exercises. Or you can also click: http://www.isabelperez.com/conditionals1.htm http://www.miguelmllop.com/practice/intermediate/grammar/conditionals8.htm http://www.better-english.com/grammar/condit23.htm http://www.miguelmllop.com/practice/intermediate/grammar/conditionals7.htm http://www.ego4u.com/en/cram-up/grammar/conditional-sentences/type-1/exercises?02 http://www.geocities.com/athens/olympus/7583/condprac1.html http://a4esl.org/q/h/vm/if-clauses.html

Условные предложения

Учитель английского языка

Стуколова Елена Александровна

• определить, реальное условие или нереальное - есть в предложении слово " бы " или нет
• определить, к какому времени по смыслу (настоящему, будущему или прошедшему) относится ваше предложение.

• Если долго пытаться сделать одно и то же, рано или поздно все получается.
• Если ты не придешь завтра, я тоже не приду.
• Если бы у меня не было мобильного телефона, жизнь была бы трудной.
• Если бы я пришел на пять минут позже, я бы опоздал на поезд.
• Если в конце марта дожди, то лето бывает холодное.
• Я позвоню тебе, если ты оставишь мне свой номер телефона.
• Если бы я был на твоем месте, я бы срочно купил себе новую машину

Типы условных предложений

0. Zero conditional (нулевой тип условия)

• First conditional (первый тип условия)
• Second conditional (второй тип условия)
• Third conditional (третий тип условия)

• Wishes

Zero conditional

• If I miss the 8 o"clock bus, I am late for work.
• If people don"t eat , they get hungry.
• My boss gets angry if I am late for work.
• Does ice melt if you heat it?

If/when + Present Simple, Present Simple.

First conditional

If I have free time, I will come . Если у меня будет время - я приду.

• ВРЕМЯ - Future (ставлю условие, касающееся будущего)
• Условие РЕАЛЬНОЕ.

If + Present Simple, Future Simple.

Second conditional

• If I had free time, I would come . Если бы у меня было время - я бы пришёл .

1. ВРЕМЯ - Future (ставлю условие, касающееся будущего)

НО! 2. Условие НЕРЕАЛЬНОЕ.("БЫ")

If + Past Simple , would/could/might + Infinitive

СУММИРУЕМ:

I и II conditionals относятся к одному времени - FUTURE, но

I - реальное условие –

Present Simple + “will “

II - нереальное условие

Past Simple +"would"

If I become the president, I will increase salaries.

Если я стану президентом, я увеличу зарплаты.

Говорит официальный кандидат в президенты. Для него существует РЕАЛЬНАЯ вероятность стать президентом.

If I became the president, I would increase salaries.

Если бы я стал президентом, я бы увеличил зарплаты.

Говорит обычный человек . Для него вероятность стать президентом - НЕРЕАЛЬНАЯ.

Third conditional

If I had had free time, I would have come .

Если бы у меня (ВЧЕРА!) было время - я бы пришёл.

1. ВРЕМЯ - Past (если бы что-то ПРОИЗОШЛО)

2. Условие НЕРЕАЛЬНОЕ (то что-то бы СЛУЧИЛОСЬ)

If + Past Perfect, would/could/might + have+V3

Тип усло-вия

Значение,

время

Формула

Речь идет о настоящем, о чем-то, что верно всегда.

If/when + Present Simple

If you drop an egg,

Ситуация реальна или возможна в настоящем или будущем

If + Present Simple

it breaks .

Нереальное, трудновыполнимое условие в настоящем или будущем.

If it rains tomorrow,

we won’t go .

If + Past Simple

would/could/might + Infinitive

If it didn’t rain ,

Ситуация нереальна – речь идет о прошлом

We should/could go out.

If + Past Perfect

would/could/might + have+V 3

If it hadn’t rained yesterday,

We should have gone out.

Verb form

Past Simple/Past Progressive

I wish I were at sea now.

Would+Infinitive

I wish I had bought that nice dress.

Cожаление о чем-то, что совсем не такое, как нам хотелось бы. (относится к настоящему)

Как бы мне хотелось сейчас быть на море.

Жаль, что я не купила то красивое платье.

Сожаление о чем-то в прошлом

I wish he would come to the party tomorrow.

Как бы мне хотелось, чтобы он прише л на вечеринку завтра.

Мы хотим, чтобы что-то случилось или изменилось. Обычно говорящий не ожидает, что это произойдет.

Conditionals Quiz

• What would you do if it (rain) on your wedding day?

What would you do if it rained on your wedding day?

• If she comes, I (call) you.

If she comes, I will call you.

• What will you do if you (fail) the history exam?

What will you do if you fail the history exam?

• If they had not (take) the car, I would have driven you.

If they had not taken the car, I would have driven you.

• If it snows , (will) you still drive to the coast?

If it snows, will you still drive to the coast?

6. He would have (go) with you if you had asked him.

He would have gone with you if you had asked him.

• If I won a million dollars, I (buy) my own airplane.

If I won a million dollars, I would buy my own airplane.

• If I forget her birthday, Andrea (get) upset.

If I forget her birthday, Andrea gets upset.

• Jacob will pick you up at school if it (rain) .

Jacob will pick you up at school if it rains .

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Zero conditional Одно событие следует за другим- чем-то всегда истинным if = when If clause Main clause IF+ PRESENT SIMPLE PRESENT SIMPLE If youfreezewater, itturnsinto ice. If youspeakEnglish well, youhaveachance to get a well-paid job. If you…

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1st Conditional 1. Используем, когда говорим о возможных событиях в БУДУЩЕМ, которые зависят от других будущих событий: If clause Main clause IF+ PRESENT SIMPLE WILL/WON`T+ INFINITIVE WITHOUT TO If youdon`t changeyour life stile, youwill haveheart attack. If the rain stops, The matchwill begin. If Alice is late, Wewon`twaitfor her long. Возможныи другие варианты: (сдругимимодальнымиглаголами) Ifyouhavetime, WeCANwalk home today.

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1st Conditional 1. Используем, когда говорим о возможных событиях в БУДУЩЕМ, которые зависят от других будущих событий: If clause Main clause Возможныи другие варианты: (сдругимимодальнымиглаголами) Ifyouhavetime, WeCANwalk home today.

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1st Conditional 2. Также используется, когда мы хотим дать совет, приказание выдвинуть предложение: If clause Main clause IF+ PRESENT SIMPLE IMPERATIVE ПОВЕЛИТЕЛЬНОЕНАКЛОНЕНИЕ ifyouhaveproblems, callme at once. (imperative) If youarelate for the last train takea taxi! If youfeelunwell goto bed!

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unless -1 если не; пока не -2 кроме, исключая, за исключением Иногда в Zero и 1st conditional используется Unless + present simple когда мы говорим о событиях, которые могут случиться, если только кто-то этому не помешает. Main clause Unless+ present simple She always comes to work, unlessshe is seriously ill. We are always ready to help, unlessit is not too late.

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2nd Conditional 1. используется, когда мы говорим о выдуманных, нереальных или маловероятных событиях В БУДУЮЩЕМ: If clause Main clause IF+ PAST Would/should(редко)/could/might +infinitivewithoutTO IfIwerea gold fish, Iwould livein a beautiful aquarium. If youwere notlate for the last train, youcould gethome without troubles. Ifhefailedthe exam, weallwould beso surprised

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2nd Conditional 2. используется, когда мы говорим о нереальных или невозможных событиях В настоящем: If clause Main clause IF+ PAST Would/should(редко)/could/might +infinitivewithoutTO IfIwerenot overweight, Iwould not beion a diet now. If wehada villa inCaribbian, wewould spendour holidays there.

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3rd Conditional 1. используется, когда мы говорим о нереальных ситуациях В ПРОШЛОМ: мы выдумываем вещи, которые не случились на самом деле. If clause Main clause IF+ PAST PERFECT! Would/should/could/might +have+V3 ! IfIhad entereda university (when I was young), Icould have becomea professor now. If Ihad knownthe truth before, Iwould not have helpedthat terrible man! Ifhehadn`tbrokenthat window, hewouldn`t have been takento police station,wouldn`t have beenlate for work andwould `t have beenfired.

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Повторяем! Zero conditional Последовательныесобытия,истина, правила… Present simple If you eat much you put on weight. 1stconditional Будущее. Present simple/will (can,may) when youseethat guy, youwill besurprised! Совет, приказание Present simple/imperative If it is late, go home! 2ndconditional невозможное в будущем Past/would +V1 If yousawa ghost youwould beso frightened! невозможное в настоящем 3rdconditional Нереальноев прошлом; то, что не случилось. Pastperfect (had+V3)/ would+have+v3 If Ihad spokena foreign language, Iwould have madea career

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If you (to love) nature you never (to throw) litter outdoors. If I (to get up) late I usually (to have) a headache. If you (not to eat) long you (to get) weak. If you (to boil) ice it (to melt) and (to turn) into water. When you (to speak) your vocal chords (to vibrate). When a storm (to begin) people (to shelter) in their homes. Нулевой тип условных. Раскройте скобки

12 слайд

Первый тип условных. Раскройте скобки If we (to walk) to the park we (to feed) some birds there. If they (to go) to the disco they (to listen) to loud music. If I (to go) to the theatre I (to watch) an interesting play. If you (to study) hard you (to pass) this exam. If you (to wear) these trousers you (to look) a bit strange. If you (to play) this composition your guests (be pleased). If David (to forget) his umbrella I (to give) him mine. If the sun (to shine) all day we (to go) to the beach. If he (to have) a temperature he (to see) the doctor.

Type 0 (general truths) They are used to express something which is always true. We can use WHEN instead of IF. If-clause: Present simple Main clause: If/When it SNOWS, the roads GET slippery and dangerous.

Type 1 (real present) They are used to express real or very probable situations in the present or future. They are also used to give instructions. If-clause: present simple Main clause: future, If they WORK hard, they WILL FINISH the project on time. If they FINISH the project, CALL me. If they WORK hard, they MAY FINISH the project by next Friday.

Type 2 (unreal present) They are used to express imaginary situations which are contrary to facts in the present and, therefore, are unlikely to happen in the present or future. They are also used to give advice. If I DIDN’T HAVE to work so much, I WOULDN’T BE so tired. If-clause: Past simple Main clause: If the weather WERE better, we COULD / MIGHT HAVE a picnic.

Type 3 (unreal past) They are used to express situations which are contrary to facts in the past. They are also used to express regrets or criticism. If-clause: Past perfect Main clause: If he HAD BEEN more careful, he WOULDN’T HAVE MADE such a big mistake. If you HADN’T HAD a lot of luck, you COULD/MIGHT HAVE LOST all your money.

MIXED CONDITIONALS Type 2 – Type 3 We can form mixed conditionals, if the context permits it, by combining an if-clause from one type with a main clause from another. The most common types are: If you WERE more sensible, you WOULDN’T HAVE SPOKEN to your parents like that. Type 3 – Type 2 If he HADN’T STOLEN all that money, he WOULDN’T BE in prison now.

OTHER WAYS OF SAYING “IF”
EXAMPLES AS LONG AS We’ll go up to the mountains this weekend AS LONG AS the weather is OK. PROVIDED/PROVIDING (THAT) You can have a pet PROVIDED/PROVIDING THAT you look after it properly. ON CONDITION (THAT) You can have a pet ON CONDITION THAT you look after it properly. SUPPOSE/SUPPOSING SUPPOSE/SUPPOSING the price of oil tripled tomorrow, what would happen? BUT FOR + noun BUT FOR your help, I wouldn’t have done it. OTHERWISE You should have your air conditioned serviced. OTHERWISE, you will waste a lot of energy. UNLESS UNLESS governments act now, the environment will suffer. IN CASE IN CASE OF + noun Take a coat with you IN CASE the weather gets worse. IN CASE OF fire, leave the building immediately.