Read the text to fulfil the tasks. The English word "law" refers to limits upon various forms of behavior

The English word "law" refers to limits upon various forms of behavior. Some laws are descriptive: they simply describe how people, or even natural phenomena, usually behave. An example is the consistent law of gravity. Other laws are prescriptive—they prescribe how people ought to behave. For example, the speed limits imposed upon drivers are laws that prescribe how fast we should drive. They rarely describe how fast we actually do drive, of course.

In all societies, relations between people are regulated by prescriptive laws. Some of them are customs—that is, informal rules of social and moral behavior. Some are rules we accept if we belong to particular social institutions, such as religious, educational and cultural groups.

Customs need not be made by governments, and they need not be written down. We learn how we are expected to behave in society through the instruction of family and teachers, the advice of friends, and our experiences in dealing with strangers. Sometimes, we can break these rules without suffering any penalty. The ways in which people talk, eat and drink, work, and relax together are usually guided by many such informal rules which have very little to do with laws created by governments.

What motives do governments have in making and enforcing laws? Social control is undoubtedly one purpose. Public laws establish the authority of the government itself, and civil laws provide a framework for interaction among citizens. Without laws, it is argued, there would be anarchy in society.

Another purpose is the implementation of justice. Justice is a concept that most people feel is very important. What should the court decide, for example, when a man kills his wife because she has a painful illness and begs him to help her die? It seems unjust to find him guilty of a crime, yet if we do not, isn't there a danger that such mercy-killing will become so widespread that abuses will occur? Many philosophers have proposed concepts of justice that are much more theoretical than everyday notions of fairness. And sometimes governments are influenced by philosophers, such as the French revolutionaries who tried to implement Montesquieu's doctrine of the Separation of Powers; or the Russian revolutionaries who accepted Marx's assertion that systems of law exist to protect the property of those who have political power. But in general, governments are guided by more practical considerations such as rising crime rates.

Sometimes laws are simply an attempt to implement common sense. It is obvious to most people that dangerous driving should be punished; that Fathers should provide financial support for their children if they desert their families; that a person should be compensated for losses when someone else breaks an agreement with him or her. But in order to be enforced, common sense needs to be defined in law, and when definitions are being written, it becomes clear that common sense is not such a simple matter. Instead, it is a complex skill based upon long observation of many different people in different situations.

The laws made by the government of one country are often very different from the laws of another country. The legal system of England and Wales is one of the oldest still operating in the modern world. (Scotland and Northern Ireland have their own internal legal systems, although many laws made by the British government operate throughout Britain.) English law has directly influenced the law of former British colonies such as Australia, India, Canada and the nation where law plays a bigger part in everyday life than anywhere else, the United States.