Chemistry is usually thought to be more difficult than other subjects, at least for the beginners. There are some reasons for this idea. For one thing, chemistry has a very specialized vocabulary（学科专用语汇）. At first, studying chemistry is like learning a new language. Also, some concepts（概念）of chemistry are hard to understand. However, with hard work and careful study, you can finish this subject successfully -and even enjoy it. Here are some suggestions to help you develop good study habits and better understand the topics in the book:
●Firstly, attend classes on time. Listen to your teacher and take careful notes in class. If possible, always review the topics you learn in class, and review your notes on the same day.
●Secondly, think carefully whether you really understand the meaning of a term or the use of an equation（方程式）. A good way to test your understanding is to explain a concept to a classmate or someone else.
●Thirdly, pay attention to things which have something to do with chemistry in life. Watch or do experiments in class carefully.
●Fourthly, question often and do not be afraid to ask your teacher or classmates for help.
You will find that chemistry is much more than numbers, formulas（分子式）and equations. It's often used in daily life just like math and physics. Once you fall in love with it, you'll get lots of fun.
