【正确答案】A task is a piece of work undertaken for oneself or for others, freely or for some reward. Thus, examples of tasks include painting a fence, dressing a child, tilling out a form, buying a pair of shoes, making an airline reservation, borrowing a library book, taking a driving test, typing a letter, weighing a patient, sorting letters, taking a hotel reservation, writing a cheque, tinding a street destination and helping someone across a road. In other words, by ‘ task’ is meant the hundred and one things people do in everyday life, at work, at play, and in between. Clark, Scarino and Brownell ( 1994: 40) believe that a task has four main components: a purpose, a context, a process and a product. Task-based Language Teaching is, in fact, a further development of Communicative Language Teaching. It shares the same beliefs, as language should be learned as close as possible to how it is used in real life. However, it has stressed the importance to combine form-focused teaching with communication-focused teaching. Features: It puts the task in the central position. The focus of task is on solving some communicative problems. The teacher should pay attention to the accomplishment of tasks that is to solve the communicative problems. The ultimate goal of foreign language teaching is to enable students to use the foreign language in work or life when necessary. Students can express their thoughts more creative. it can help develop students’ personal characters and improve their intelligence levels. Students can feel a sense of achievement and draw individual attention from others.