【正确答案】：
ARE TEACHERS NECESSARY IN THE PROCESS OF LEARNING?
         SOME PEOPLE THINK THAT THEY CAN LEARN BETTER BY THEMSELVES THAN WITH A TEACHER. OTHERS THINK THAT IT IS ALWAYS BETTER TO HAVE A TEACHER. IN MY OPINION, MOST OF US CAN LEARN HOW TO DO SIMPLE THINGS ON OUR OWN WITH JUST A SET OF INSTRUCTION. HOWEVER, TO LEARN THINGS MORE COMPLEX, IT IS BEST TO HAVE A TEACHER.
         TO BEGIN WITH, TEACHERS BRING WITH THEM VARIED AND USEFUL BACKGROUNDS. THEY HAVE BEEN TRAINED TO TEACH INDIVIDUALS IN DIFFERENT WAYS DEPENDING ON THEIR STYLES. FOR INSTANCE, SOME STUDENTS LEARN BETTER  BY DICUSSING A TOPIC. OTHERS LEARN MORE BY WRITING ABOUT IT. TEACHERS CAN HELP STUDENTS LEARN IN THE WAY THAT IS BEST FOR EACH STUDENTS. A TEXTBOOK OR A MANUAL CAN ONLY GIVE YOU ONE WAY OF LEARNING THINGS. WHAT'S MORE, THEY ARE ONLY HELPFUL IF YOU ARE ABLE TO UNDERSTAND THEM. A GOOD TEACHER CAN ADAPT HER TEACHING TO YOUR NEEDS.
          NEXT, TEACHERS HELP YOU FOCUS ON WHAT YOU ARE LEARNING. IF YOU ARE LEARNING BY YOURSELF, IT IS EASY TO BECOME DISTRACTED, AND GO ON TO OTHER ACTIVITIES. TEACHERS KEEP YOUR ATTENTION ON THE SUBJECT. THEY ALSO APPROACH A SUBJECT LOGICALLY, TAKING IT ONE STEP AT A TIME. ON YOUR OWN, IT IS TEMPTING TO SKIP PARTS OF THE LEARNING PROCESS YOU THINK YOU DO NOT NEED. THAT CAN HINDER YOUR ABILITY TO REALLY UNDERSTAND THE SUBJECT.
          FINALLY, LEARNING A SUBJECT ON YOUR OWN IS A VERY NARROW WAY OF LEARNING. YOU CAN ONLY USE THE INFORMATION YOU GET FROM THE TEXTBOOK. WITH A TEACHER, YOU GET THE INFORMATION IN THE WRITTEN MATERIALS AS WELL AS THE TEACHER'S OWN KNOWLEDGE OF THE TOPIC. TEACHERS CAN ALSO PROVIDE EXTRA MATERIALS TO BROADEN THE SCOPE OF WHAT YOU ARE LEARNING.
          THERE IS NOTHING WRONG WITH STUDYING ON YOUR OWN, AND A LEARNER CAN ALWAYS BENEFIT FROM QUIET STUDY. FOR THE BEST POSSIBLE LEARNING, THOUGH, A GOOD TEACHER IS THE BIGGEST HELP YOU CAN HAVE.
【题目解析】：由题干可知文章为对比议论类的文章，其写作思路如下：开头段：提出主题Some people think that______________________________,others think that____________________________,However,___________________________主体段：论证主题① to begin with, ______________（分论点一）② next, _______________________ （分论点二）③ Finally, ______________________（分论点三）结尾段：重申主题／对策措施