如要展现critical thinking ability，需要想想自己准备的例子库。是不是所有新的方法都值得尝试并推广?是不是所有古老的做事方法都需要被抛弃?显然不是。笔者在范文中给出了塑料袋的例子和匈牙利医生赛买尔维斯的例子，分别论述了新事物--塑料袋的不好，与新思想--洗手的好。从这两个例子，我们得出结论：传统的做事方式不一定是不好，新思想也不一定都好。只有给大众带来真正福利的东西才值得我们推崇。
As society develops, an increasing number of people are attaching greater importance to innovation, believing that we should always use novel ways to tackle problems. However, is it really a reasonable idea to move forward and be innovative? Opinions vary. As far as I am concerned, it is superficial to say that new ways are superior to old ones and vice versa.
A perfect case that can be used to illustrate the negative effects of moving forward is the invention of plastic bags. While it is true that this new container signifies the development of chemistry, I still believe that it is a devastating move for people to substitute plastic bags for cloth bags and paper bags. The main problem associated with plastic bags is that they are not biodegradable, which means that abandoned plastic bags will stay with us for hundreds of years. This can be disastrous for both the environment and the wild animals. Because the break down rate is so slow the chance that the bag will harmlessly go away are extremely slim. Throughout the world plastic bags are responsible for suffocation deaths of animals as well as inhibiting soil nutrients.This is the reason why I firmly believe that sometimes it is not a good idea to move forward. I would be happy to see the whole world ban the use of plastic bags and use baskets or cloth bags.
However, despite some undesirable changes that innovations may bring, we should not show fear and resentment to all progress. Some changes are imperative and breed happiness for people all over the world. One such example is the introduction of “hands-washing” theory by a Hungarian physician Ignaz Semmelweis. In the 19th century, many women died from childbed fever. Childbed fever was common in mid-19th-century hospitals and often fatal, with mortality at 10%-35%. Through months of observation and research, Semmelweis discovered that the incidence of childbed fever could be drastically cut by the use of hand disinfection in obstetrical clinics. So he proposed the practice of washing hand with chlorinated lime solutions. In spite of the fact that Semmelweis proved the effectiveness of hand-washing, many doctors still held on to the established scientific and medical opinions, refusing to accept his innovative ways. Thus, many women died needlessly.
From the above discussion, we can draw the conclusion that blindly embracing or spurning innovations will both result in dire consequences. Only those methods which breed wellbeing for the common good deserve our respect and approval.