【示例一】
①recently the issue of whether or not ________（讨论话题）has been in the limelight and has aroused wide concern in the public. ②there are two major arguments that can be made for. ③for one thing, ________can bring ________to________（优点一）. ④for another, it is widely hold that people usually ________when ________（优点二）. ⑤but we must not lose sight of the fact that there are also drawbacks to ________ , among which are ________（列举缺点）. ⑥for instance, it can be ________to ________（举例说明）. ⑦in addition, many people find it ________（形容词）to ________（第二个缺点）.
【示例二】
①some people are in favor of the idea of doing ________（主题）. ②they point out the fact that ________（支持的第一个原因）. ③they also argue that ________（支持的另一个原因）.④there might be some element of truth in these people’s belief. ⑤however, other people stand on a different ground. ⑥they consider it harmful to do ________. ⑦they firmly point out that ________（