This is Mr. Lin's passport. Mr. Lin is a Chinese scholar. He will go to Japan for a research program. That's why he has the passport. A passport is a small official book. It is a formal government document. A citizen of a country can obtain a passport from a special government agency. He must carry his passport when he travels abroad.


      A passport bears the holder's photo and an official seal. It provides the personal particulars about the holder such as name, age, sex, nationality and so on. To apply for a visa to go abroad, you must submit your passport together with some other application forms. Whether you enter a foreign country or return to your homeland, you need to show your passport to the customs officials. So, if you want to work, study or travel abroad, a passport is very important.