Practica esta lección:
Ir al examen
227
Apéndice
Let’s begin
Activity 1.2
1. If you help somebody, you feel happy.
2. If you mix water and oil, the second will oat.
3. If you mix blue with yellow, you get green.
4. If you don’t eat, you become hungry.
5. If you put water on the Fre, it will boil at 100
°C
Activity 1.3
1a, 2b, 3a, 4a, 5b
Activity 1.4
Activity 1.6
1. has
2. wants
3. studies
4. doesn’t like
5. calls
6. asks
7. goes
Activity 1.7
1. if
2. when
3. unless
4. if
5. if
6. if
7. unless
8. if
9. unless
10. when
Part A. The If clause
Part B. The result clause
1
If I am happy,
I laugh a lot.
2
If I am tired,
I go to sleep.
3
If I am hungry,
I eat some fruit.
4
If I have a stomachache,
I take some tea.
5
If I don’t
want to go out with my friends,
I tell them I am busy.
6
If I am going to have an exam,
I study a lot.
7
If it is raining when I go to school,
I take an umbrella.
8
If my teacher doesn’t come on time,
I make a lot of noise.
9
If I Fnd some money,
I give it to my mother.
10
If my friends don’t invite me to their parties,
I feel sad.