Teoria: Condicional Zero (IF + PRESENT SIMPLE, ... PRESENT SIMPLE)
Veja em ação: John: "What happens if you heat water?" (O que acontece se você esquenta água?)
Ana: "If you heat water, it boils." (Se você esquenta água, ela ferve.)
Usamos a Condicional Zero (Zero Conditional) para falar sobre fatos, verdades universais e regras. Acontece 100% das vezes.
A fórmula é: IF + [Presente Simples], ... [Presente Simples].
A "condição" (com IF) usa o Presente Simples.
O "resultado" (a outra parte da frase) *também* usa o Presente Simples.
Podemos inverter a ordem: Water boils if you heat it. (A água ferve se você a esquenta.)
Exemplos Práticos da Estrutura:
If I eat too much, I get sick. (Se eu como muito, eu fico doente.)
If you don't water plants, they die. (Se você não rega as plantas, elas morrem.)
If he mixes red and blue, he gets purple. (Se ele mistura vermelho e azul, ele obtém roxo.)
Ice melts if you heat it. (Gelo derrete se você o esquenta.)
Escolha a forma correta: 1. "If you heat ice, it [_____]."
a) melts
b) will melt
c) melted
2. "If I [_____] too much, I get fat."
a) eat
b) will eat
c) ate
3. "If plants [_____] (não recebem) water, they die."
a) don't get
b) doesn't get
c) will not get
4. "If she [_____] (mistura) red and yellow, she gets orange."
a) mix
b) mixes
c) will mix
5. "People get hungry if they [_____] (não comem)."
a) doesn't eat
b) will not eat
c) don't eat
6. "If you [_____] (toca) fire, you get burned."
a) touch
b) touches
c) touched
7. "The grass [_____] (fica) wet if it rains."
a) gets
b) get
c) will get
8. "If I [_____] (estou) late, my boss gets angry."
a) am
b) am
c) will be
9. "If he [_____] (não estuda), he fails the test."
a) doesn't study
b) don't study
c) didn't study
10. "Babies [_____] (choram) if they are hungry."
a) cries
b) cry
c) will cry
Reescreva as frases na forma correta. 1. (If / you / heat / ice / it / melt)
2. (If / I / eat / too much / I / get / sick)
3. (If / he / not study / he / fail)
4. (If / plants / not get / water / they / die)
5. (If / she / be / late / her boss / get / angry)
6. (Water / boil / if / you / heat / it)
7. (If / it / rain / the / grass / get / wet)
8. (If / you / touch / fire / you / get / burned)
9. (If / I / be / tired / I / go / to bed)
10. (People / get / hungry / if / they / not eat)
Escreva somente o verbo correto: 1. If you (heat) [_____] water, it boils.
2. If you heat water, it (boil) [_____].
3. If I (eat) [_____] peanuts, I get sick.
4. If she (touch) [_____] a cat, she sneezes.
5. Plants die if they (not get) [_____] sun.
6. If he (not study) [_____], he fails.
7. The machine starts if you (press) [_____] the button.
8. If it (rain) [_____], the ground gets wet.
9. If I (be) [_____] tired, I sleep.
10. If he (be) [_____] sick, he goes to the doctor.
