例1：A sense of humor is really one of the keys to happiness. It gives zest to life to make it orth living.
例2：ith all these benefits，it is no onder that sports and games have no become more popular ith people than ever.
例1：In conclusion，a good teacher-student relationship can be mutual beneficial. The students gain knoledge eagerly and enjoyably，and the teacher gains satisfaction from his job.
例2：On the hole there are more advantages than disadvantages in the use of TV. Yet different people may have different attitude toard TV. But e must realize that television in itself is neither good nor bad. Its value to people and society depends on ho e look at it.
例1：If you have anything to do，try to do it yourself，for that is the safest ay to permanent success. Remember the famous saying. “God helps those ho help themselves.”
例2：If e stick to studies day after day，there is nothing that can’t be achieved. As an old saying goes： “Constant dropping of ater ears aay a stone.”
例1：Therefore，listening skills must be consciously improved. Since it is such an important means of learning and communication，hy should e not develop this ability as far as possible？
例2：So，hat can e benefit from ealth if e do not have health？
例1：I am sure that Chinese ill become one of the most important languages in the orld in the next century. As China ill open further to the outside orld the language is sure to be spread orld idely.
例2： If everyone has developed good manners，people ill form a more harmonious relation. If everyone behaves considerately toards others and social ethics people ill live in a better orld. ith the general mood of society improved，there ill be a progress of civilization.