Type, страница 177 - гдз по английскому языку 10 класс (starlight) учебник Баранова, Дули

Grammar Practice Section. Module 4 - страница 177.

Условие.

Type 0 & I Conditionals

Type 0 conditionals are used to express a general truth or a scientific fact. In this type of conditionals we can use when instead of if.

If-clause	Main Clause
If/When + present simple →	present simple
If/When you drop something, it falls to the ground.

Type I conditionals are used to express a real or very probable situation in the present or future.

If-clause	Main Clause
If + present simple →	future simple, imperative, can/must/may etc + bare infinitive
If I go to the party, I will/may/etc have a good time.

When the hypothesis comes before the main clause, we separate them with a comma. When the main clause comes before the if-clause, then we do not use a comma to separate them.

Note: With type I conditionals we can use unless + affirmative verb (= if + negative verb). I will not be able to come unless it stops raining. (= if it does not stop raining, ...)

Type 2 & 3 Conditionals

• Type 2 conditionals (unreal in the present) are used to express imaginary situations which are contrary to facts in the present, and therefore are unlikely to happen in the present or the future. We can use either was or were for I, he, she, it, in the if-clause. We can also use the structure If I were you ... to give advice.

  If-clause	Main Clause
  If + past simple/past continuous →	would/could/might + present bare infinitive
  If I knew how to do it, I would do it myself.
  If Sue was working today, we would see her.
  If I were you, I would tell them not to interfere.

• Type 3 conditionals (unreal in the past) are used to express imaginary situations which are contrary to facts in the past. They are also used to express regrets or criticism.

  If-clause	Main Clause
  If + past perfect/past perfect continuous →	would/could/might + perfect bare infinitive
  If they had asked me, I would have told them not to do it.
  If I hadn't been working today, we would have done the shopping.

Решение 1.