Оригинал на английском:
Focus on Syntax
REASON CLAUSES
1. When you are talking about a possible situation which explains the reason why someone does something, you often use in case or just in case.
I'm here just in case anything unusual happens.
2. You do not use future tenses after in case.
I’ll stay here in case she arrives later.
3. In case doesn’t mean the same as if. In case expresses a precaution. You do things in advance (before sth , in order to be safe or ready if there is a problem. In case means “so as to be on the safe side” and refers to the future. But instead of future tenses we use present simple or should after in case or follow the rules of the sequence of tenses.
You insure things in case they are stolen (before they are stolen .
He said we should insure things in case they are stolen.
If refers to a result.
You should telephone the police if your things are stolen (you telephone after they have been stolen .
37. Complete the sentences using if or in case and explain your choice.
1. Take an umbrella with you _ it rains. 2. She always wears this warm jacket _ it snows and freezes. 3. _ there might be a lot of traffic on the road, go by train. 4. I’m going to take my passport with me _ I need it. 5. _ you are late, don’t forget to apologise. 6. I’ve got the medicine _ I have a heart attack. 7. _ you see him, tell him that I would like to speak to him. 8. You won’t be sorry) you see this film. 9. We always have a tyre in the car _ there is a puncture in a wheel. 10. We always keep a sufficient amount of water in the tank in our garden _ the weather is dry.
REASON CLAUSES
1. When you are talking about a possible situation which explains the reason why someone does something, you often use in case or just in case.
I'm here just in case anything unusual happens.
2. You do not use future tenses after in case.
I’ll stay here in case she arrives later.
3. In case doesn’t mean the same as if. In case expresses a precaution. You do things in advance (before sth , in order to be safe or ready if there is a problem. In case means “so as to be on the safe side” and refers to the future. But instead of future tenses we use present simple or should after in case or follow the rules of the sequence of tenses.
You insure things in case they are stolen (before they are stolen .
He said we should insure things in case they are stolen.
If refers to a result.
You should telephone the police if your things are stolen (you telephone after they have been stolen .
37. Complete the sentences using if or in case and explain your choice.
1. Take an umbrella with you _ it rains. 2. She always wears this warm jacket _ it snows and freezes. 3. _ there might be a lot of traffic on the road, go by train. 4. I’m going to take my passport with me _ I need it. 5. _ you are late, don’t forget to apologise. 6. I’ve got the medicine _ I have a heart attack. 7. _ you see him, tell him that I would like to speak to him. 8. You won’t be sorry) you see this film. 9. We always have a tyre in the car _ there is a puncture in a wheel. 10. We always keep a sufficient amount of water in the tank in our garden _ the weather is dry.