红色是修改,紫色是建议,蓝色是疑问,黄色是精彩。 It is strange to say (that,加上舒服些) it isn't necessary to review the past when people want to overcome present or future difficulties. In general, most of the conditions needed to control situations can be found or created by checking past(这句话是这个意思吗:通过查看历史需要被控制环境的条件是可以被找到或是重建的。意思有些绕哎。).
To begin with, experience comes from the past, and what is important to solve a problem is considerable experience. By reviewing the past, people can sum up different kinds of experience which is valuable in different situations. In contrast, if people don't realize the significance of reviewing the past, the past would only turn to normal history rather than useful experience.(句子结构都很好,读起来舒服^_^) (个人觉得论证的有些简单,如果可以加些事例吧,会更有力一些。) Also, from the logic point of view, problems happens (happen) now or in the future always arise from the past. That's because every effective improvement comes from each careful modification. For instance, people often make a plan when they have a goal. Needless to say, the first plan is always not suitable to execute. There are many factors unconsidered at first. (三个短句子连在一起,有些简单,后面两个可以连起来:Needless to say, the first plan is always not suitable to execute, leaving many factors unconsidered at first.)So, the next step is perfecting the plan to make it more tolerable(觉得用tolerable不是很合适). The second step usually will be repeated several times. Therefore, the way to acquaint yourself with the problems is to review the past, find out the origins and correct them thoroughly.
I totally acknowledge that only reviewing the past isn't enough, but the creative ideas indeed base on the past. As time past(passed), the circumstances are changing, some methods practical (practical methods) in the past can now be unreasonable. For example, wars are not a good choice(主语是复数,宾语是单数,这个可以否) to get new sources of energy and people could never colonize Arctic or Antarctic regions to migrate to a place with cleaner environment. However, methane is discovered during the exploration in Antarctica and when countries get hurt in wars they learn to trade and be friends again.
To sum up, reviewing the past are an efficient device that can get considerable experience, absorb abundant information of problems and provide a possibility to solve problems creatively.
但是论证的例子较少,觉得论证不够有力哪。
综合happy没做,也没批过,srafcatt自己修改下吧^_^。
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