English is the most international of language. It is spoken as a native language in the United States, Australia, New Zealand, most of Canada and some other country. It is also used as a second and foreign language by 700 million people in the remaining parts of the word. To many people, English is an important language to master because it is a gateway to word scholarship and international trade. It has become the official language in the fields of politics, business, science and technology. In our country, English is the main language, which is taught in schools and widely used in business. If we know English, we can read many kinds of English books to wide our knowledge, to communicate with the foreigners most easily and above all, to find a good job in the business company. In brief, it is necessary for us to know English. If we know English well, we have a better change of improving our lives.