if you heat water to 100°c, it boils. when the sun comes up, it gets light. if you dont pay your...

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If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you don’t pay your VISA bill on time, the bank charges you interest. If + subj. + present simple, subj. + present simple. Zero conditional present time always true/fact every time I F

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Page 1: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

If you heat water to 100°C, it boils.

When the sun comes up, it gets light.

If you don’t pay your VISA bill on time, the bank charges you interest.If + subj. + present simple, subj. + present simple.

•Zero conditional

•present time

•always true/fact

•every time

IF

Page 2: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

If I have enough money, I’ll buy a nice car.

If + subj. + present tense, subj. + will + base form.

•First conditional

•present/future time

•possible/likely/true/real

IF

Page 3: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

If I don’t pass Level 3, I will not sit IELTS.

•Unless = If not

•present/future time

•always true/ possible/likely/true/real

UNLESS

If I pass Level 3, I will sit IELTS.

Unless I pass Level 3, I will not sit IELTS.

Page 4: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

Unless I feel really tired, I will do my homework.

Unless + subj. + present tense, subj. + will + base form.

•Unless = If not

•present/future time

•always true/ possible/likely/true/real

UNLESS

Unless I drink coffee, I get a headache.

Unless + subj. + present tense, subj. + present simple.

Page 5: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

•Unless = If not

•present/future time

•always true/ possible/likely/true/real

UNLESS

If I drink coffee, I have energy.

If I don’t drink coffee, I don’t have energy.

Unless ____________________________________I drink coffee, I don’t have energy.

If I sleep for 8 hours, I will feel good.

If I don’t sleep for 8 hours, I don’t _______________

Unless ____________________________________

feel good

I sleep for 8 hours, I don’t feel good.

Page 6: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

•Unless = If not

•present/future time

•always true/ possible/likely/true/real

UNLESS

If I don’t eat healthy food, my weight will increase.

Unless ______________________________________I eat healthy food, my weight will increase.

If I don’t do my homework, I will not learn..

Unless ______________________________________I do my homework, I will not learn.

Make your own sentences.

Unless I get married, ___________________________

Unless I get a passport, _________________________

Unless I get a driver’s license, ____________________

Page 7: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

If/Unless Practice

http://www.usingenglish.com/quizzes/23.html

http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-45666.php

http://www.englishexercises.org/makeagame/viewgame.asp?id=2589

GOOD LUCK

Page 8: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

A: Some of these conditional sentences are correct, but some have mistakes. Find the mistakes and fix them.

1)I won’t lend you any money unless you promise to pay me back quickly.

2)If you don’t give plants enough water, they die. 3)If I will see my friend today, I’ll give her your

message.4)If I have time I’ll go to the supermarket for some

fresh vegetables.5)You would get sick if you don’t eat healthy food.6)If the weather is nice, we will go for a picnic.7)I will ask you for help if I have any problems. 8)I’ll be happy if I got 6 in IELTS.9)I’ll eat lunch outside unless if it’s not hot.10) If you jump into a tiger’s cage at the zoo, it eats

you.

get

will

will eat

Page 9: If you heat water to 100°C, it boils. When the sun comes up, it gets light. If you dont pay your VISA bill on time, the bank charges you interest. If +

B: Look at the following two sentences. Which one is more certain?1)When I get 5 in IELTS, I’ll study my major.2) If I get 5 in IELTS, I’ll study my major.

C: Complete the gaps in the following sentences with if or when.

1._______ this class finishes, we’ll go to the library.

2._______ I get sick tomorrow, I will stay at home.

3.I’ll go to the ILC ______ this class finishes early.

4.______ the sun comes up in the morning, it gets light.

When

If

if

When