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托�？萍碱愖魑姆段�
科技飛速發展，作文也喜歡已科技來出題。下面是小編整理的科技類的托福作文，歡迎閱讀!
托福作文范文科技類【1】
Hesitating I enter my house, the light outside is dimming and the shadows make everything appear unfamiliar. I know that my husband has not returned from work yet, simply because his car is not in the garage. I am alone. I carefully check all the rooms, almost expecting something to happen suddenly. I hold my bag in my hand as if it were a weapon. After the whole house has been declared "clear," I start to breathe normally again and a smile appears on my face as I realize, once again, how a simple movie seen at the cinema a week earlier can modify my actions.
Sometimes I wonder if I should watch TV, with all its shows that make me wonder whether I exercise enough, whether I am slim enough, or whether I treat my pets with the care they deserve: am I really concerned about their mental health? Not to mention the hundreds of commercials that try to make me believe I need a water purifier to remain alive since the water I am currently drinking is heavily polluted! And countless are the times when I have heard people talking by quotations learned from movies. We need to watch shows and films to know what to say, how to be, how to act. We are so addicted to all this that it almost seems like we cannot think on our own.
I cannot help thinking about what happened to me some days ago, an example that clearly shows what kind of power TV has over people. My husband and I were in a restaurant when I heard my young neighbor pronouncing violent words in a low angry voice. Surprised, I turned to better understand the situation and I saw that he was holding a fake military device and was acting as if he were filming a war movie. I am sure that if I had been a little be more updated about this type of movie, I would have recognized what he was saying as a quotation. Now, I wonder if he uses such a language also with his friends and with his parents, if he is aggressive, and if so, whether his attitude has really nothing to do with what he watches on TV.
That same evening on the way home I saw two cars stopped one next to the other at a traffic light and as soon as the light turned green they started racing, in the middle of town. In this case not even a major knowledge of movies and TV programs would have helped me: there are just to many of them on the market showing the exact same thing: people racing with cars.
I am sure that everybody, if asked, could easily list many other examples of how TV and movies can modify our behavior and therefore our life but, I wonder, if we will always be able to draw the line between a TV show and real life, between what they make us think we want and what instead we really need and are and believe.
托福作文范文科技類【2】
New findings in scientific areas can examine and challenge previous assumptions. A recent finding concerning the meerkat, 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.
Meerkats were previously thought to be a typical altruistic animal. When the other meerkats feed, there is usually one meerkat watching out for predators. The sentinel meerkat 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 meerkat 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?
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