Conditionals-Grammar and Composition-Lecture Slides, Slides of Grammar and Composition

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 If a large comet hit the earth, humans would very soon die out. If it hit the land, it would cause earthquakes worldwide, knocking down almost every building.

 If it landed in the deepest ocean, it would send waves thousands of feet high over surrounding continents. A minimum of a billion people might die.

 But Jupiter helps to stop such disasters.

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 The First Conditional real or probable future situations

 If it rains, I wont go out

 If + present tense, will + infinitive

 Continuous and perfect tenses are also used in first conditional

 If you are going shopping, will you buy me some chocolates?

 If he’s had enough, he’ll stop

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 The Second conditional describes imaginary or unlikely situations

 If I knew, I’d tell you

 If + past tense, would + infinitive

 In a more formal style we use ‘were’, not ‘was’

 If I were you, I’d apply for the job

 If he were here, what would he do?

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