3 Complete the second example in each pair of sentences so that it means the same as the first. What do the examples tell you about the meaning of unless?

1. Unless we do more to help orangutans, they will disappear completely. If we do more to help orangutans, they will disappear completely.
2. Unless we protect orangutans now, they will have no future. If we protect orangutans now, they will have a future.
Meaning of unless: 'Unless' means 'if not'. It introduces a condition that, if not met, will lead to the stated consequence.