Lesson
in case - unless
IN CASE : In case expresses the possibility of something happening.
- It is used to express the idea of doing something to avoid a possible problem later on.
It gives the reason for an action.
- Take an umbrella with you in case it rains.
=There is a possibility that it will rain, so it's a good idea to take an umbrella.
In case + 'of' In case of = if there is
- In case of emergency, call this number.
= If there is an emergency, call this number.
UNLESS :
Unless means 'except if' or 'only if''.
Unless replaces 'if' + a negative verb.
- Mary won't come unless you invite Tom.
= Mary won't come except if you invite Tom..
= Mary will only come if you invite Tom.
= If you don't invite Tom, Mary won't come. - We will have a picnic unless it rains..
=We will have a picnic except if it rains.
=If it doesn't rain, we will have a picnic.
=If it rains, we won't have a picnic.
in case - unless
Complete the following sentences with 'in case' or 'unless'.
1. Emma won't call you ___________ you give her your phone number. | 2. Take a map with you ____________ you can't find the hotel. | 3. Ask for a receipt __________ you need it later. | 4. ______________ fire, press the red button. | 5. I won't lend you my car ____________ you promise to drive carefully. | 6. The alarm won't work ____________ you turn it on. | 7. We got a second key ____________ we lost the first one. | 8. Call this number ______________ emergency. | 9. Take your vaccination certificate with you ___________ they ask for it at the airport. | 10. I'll see you at the meeting next week_____________ it's cancelled before then. |
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