1. CONDITIONAL SENTENCES

2. Types of Condititional Sentences There are four types of Conditional Sentences: Type 0 Type 1 Type 2 Type 3

3. Type 0 If you heat water, it boils. If you don’t water plants, they die. Cause + Effect Present + Present Scientific facts

4. Complete these sentences. Use conditional sentences type 0 1.If demand increases, _____________ 2.Prices fall if ____________________ 3.If two magnets are against the same polarity, _______________________ 4.If you put a magnet next to a piece of steel, they ______________________ 5.If you light a match in a room full of natural gas, _____________________ prices rise. supplies increase. they repel each other. attract each other. it explodes.

5. You can write the effect ate the beginning or the cause If demand increases, prices rise. Prices fall if supplies increase. If two magnets are against the same polarity, they repel each other. Prices rise if demand increases. If supplies increase prices fall. Two magnets repel each other if they are against the same polarity.

6. Type 1 If you study for the test, you will pass. If they talk to him, he’ll come. Condition + Result Present + Will (or ‘ll) Likelihood

7. Complete these sentences. Use conditional sentences type 0 1.If I fail this course, I ________________ 2.If I don’t study hard for the finals, I ____ _________________________________ 3.If there is another protest, ___________ _________________________________

8. If you study for the test, you may/can pass. If they talk to him, he may/can come. Condition + Result Present + May or Can Possibility

9. Type 2 If a lot of cars used solar energy, we would not need so much fuel. If computers translated accurately, most English teachers would be out of work. Unreal Condition + Imaginary Result Past + Would (or ‘d) Idea or theory

10. If a lot of cars used solar energy, we could save a lot of fuel. If computers translated accurately, most English teachers might be out of work. Unreal Condition + Imaginary Result Past + Could or Might Remote possibility

11. Read the situation and write a sentence with if. We don’t visit you very often because you live far away. But if you didn’t live far away, we would visit you more often. 1.- People don’t understand him because he doesn’t speak very clearly. But if he ________________, people _________________________ 2.- I won’t buy that book because it is too expensive __________________________________________________________ 3.- She doesn’t go out very often because she isn’t able walk without help. __________________________________________________________ 4.- He’s fat because he doesn’t take any exercise. __________________________________________________________ 5.- We can’t have lunch in the garden because it is raining. __________________________________________________________ spoke more clearly would understand him If the book wasn’t so expensive, I would buy it. If she was able to walk without help, she would go out more often If he took some exercise, he wouldn’t be fat. If it wasn’t raining, we could have lunch in the garden.

12. On a separate sheet of paper, write two sentences describing what would (could or might) happen if a new theory or device were invented.