| A | B |
| proof (n) | to treat a material with a substance in order to protect it against water, oil etc |
| refugee (n) | someone who has been forced to leave their country |
| predict (v) | to say that something will happen, before it happens |
| dramatically (adv) | changing alot |
| prosper (v) | people or businesses prosper, they grow and develop in a successful way |
| retreat (v) | to move away from the enemy after being defeated in battle |
| occur (v) | to happen or exist in a particular place or situation |
| actually (adv) | used to add new information to what you have just said |
| harvest (n) | the time when crops are gathered from the fields, |
| plunge (v) | to move or fall |
| crop (n) | a plant such as wheat, rice |
| famine (n) | little food for long time |
| struggle (v) | try hard to achieve something |
| recovery (n) | process of getting better |
| agreement (n) | an arrangement or promise to do something |
| glacier (n) | a large mass of ice |
| cause (v) | to make something happen |
| therefore (adv) | as a result of something |
| during (prep.) | from the beginning to the end of a period of time |
| look back (v) | to look to the past |