托福写作是中国考生除了口语之外的第二大弱项，其中语法、用词以及逻辑思维是写作的问题所在。只有在日常生活中多读些范文，了解托福写作满分的逻辑思维，从哪方面考虑问题，句型难度，才可更好的进行锻炼。
下面我们一起来欣赏这篇满分作文吧!
New findings in scientific areas can examine and challenge previous assumptions. A recent finding concerning the market, a burrow-dwelling animal in the African grasslands, has cast doubt upon the conventional ideas of altruism, the type of behavior in which an animal sacrifices its own interests for the benefit of another.
Markets were previously thought to be a typical altruistic animal. When the other markets feed, there is usually one market watching out for predators. The sentinel market gains nothing, it seems, for it can neither eat nor escape quickly and successfully after raising an alarm.
However, in the new findings, it's shown that the sentinel market has already eaten food before standing guard, thus contradicting the thought that it has an empty belly while on the lookout. In addition to this, the sentinel is the first to see a predator, so it is the first to escape. It is also placed nearest a burrow, making it relatively easier to flee. Moreover, its alarm calls may cause the group either to gather or to spread rapidly, which may attract the predator's attention, providing the sentinel a better chance to escape.
The same is with supposed human altruistic behavior. Organ donation to strangers may be considered an unselfish act, which provides little reward to the donator. However, by donating his organ, the donator may most probably receive praise and appreciation from others. Isn't this non-material reward, which increases one's self worth, satisfactory to anyone?
以上这篇托福写作仅供参考，建议从思维上改变去写作文，即典型“总---分---总”的写作思维。这种思维源于美国的presentation。在新托福写作中，用这种思维最容易获得高分。最后，前程百利小编祝大家考试顺利。
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