1、The world is divided into two main parts. The difference is ___41___one part is rich and the other is poor. In the poor part,  a lot of people ___42_____get enough to eat. In the rich part, a lot of people eat too much. In one part ,children starve and in the other, a lot of people get fatter and have to go on diets, or do some exercise in ___43____ to lose weight.

The poor countries are called the ____44______ countries. They have special problems. Sometimes the land is too poor to grow anything ____45___. The land can be ___46___, but a lot of things must be done first. New ____47____ methods must be introduced. The people must be educated. Water must be found.

Many of these problems are too big for one country to solve ___48____. Help should be given by richer countries, but it must be the right ___49_____of help. Money is not enough. The development countries must be helped to ____50_____ themselves. But rich countries have problems too. They are not always very pleasant places to live in. Usually , it is the things that make them rich that also make them unpleasant.