相信大家都跟作文打过交道吧，特别是其中的说明文，更是常见，说明文是以说明为主要表达方式，其他表达方式（如叙述、议论、描写等）恰当配合的一类文种。那么大家知道优秀的说明文是怎么写的吗？以下是小编收集整理的托福说明文，希望对大家有所帮助。
托福说明文1
Choose one of the following transportation vehicles and explain why you think it has changed people’s lives.automobiles bicycles airplanes Use specific reasons and examples to support your answer. The most significant invention at the turn of the twentieth century, in my point of view, is the airplane. It has made a positive contribution to the economic development of the world. Meanwhile, it has changed the way people live. There are three basic reasons for my viewpoint and I will further elaborate them in this passage.
The first point that comes to my mind is that airplanes have tremendously increased people’s efficiency. Despite that more and more people are willing to travel by airplane due to its speed, day-to-day businesses also rely greatly on airplanes for its incomparable efficiency. For example, after airplanes were invented, the time to travel between Europe and America had been shortened by more than three times. Businessmen can take an airplane, get to their destination, have their contraction, and come back home in just one day. In today’s epoch when the whole ball game is about efficiency, airplanes certainly have changed the way people are living.
Another reason that cannot be ignored is that airplanes have make people’s dreams come true. Human beings had always hoped that one day we can fly like a bird. The invention of the airplane helped to achieve our dream. Thanks to the airplane, we can travel around the world in just one or two days. Suddenly, people realize that dreams do come true, as long as we strive for them. At the same time, people realize that we can achieve other dreams, such as getting in contact with life on other planets, as well. In a word, airplane is not only a means of transportation, it also has become a symbol of achieved dreams. It has greatly influenced the way people think about our fantasies.
Moreover, people find it exciting to travel by airplanes. To some extent, airplanes connect various places on the earth together. For example, when I first came to Canada from my home country where the climate is always very hot and snow is very rare, I was astounded by the sight of the snow-covered land. Since then, I have always hoped to take an airplane again and have another unforgettable sight of the beautiful landscape elsewhere. It is the airplane that makes people’s life more enjoyable and exciting.
To sum up, the invention of the airplane has maximized people’s efficiency, made human being’s dream come true, and provide people excitement and pleasure. It cannot be denied that the airplane had significantly changed people’s life.
托福说明文2
说明文用来解释或说明理论，方法，过程或某种抽象的情况。这里所说的说明文主要是"托福"中根据具体图表所写的文章。文章只传达图表中的信息，不涉及观点问题，不需要以理服人。
按图表写作文，首先要读懂图表，理解其包含的信息。为此目的'，应注意三点：第一是读懂标题，明白图表的目的；第二是研究图表主题，理解各项内容及其之间的联系；第三是注意图表的说明或图例，以免误解。总之，对图表的研究要仔细,理解和判断要准确，不能草率做出决定，以免在文章内容方面丢分。
读懂图表之后，立即思考文章应表达的内容。这里,我们应该明白两个制约因素：其一是作文写作时间只有二十多分钟，不可能长篇大论；其二是图表内容繁多，不可能一一说明，也不能写成枯燥无味的流水账。考虑取舍时,应注意总的趋势，概貌，相互关系，典型的例子或数据，抓住这些之后，其他的内容实际上也包含在其中，不必再提及。
文章的写法没有固定的模式，但因题材的限制，变化太大也不可能。第一段必须说明图表的性质与目的，没有这一点，文章的主题难以突出。自然段的划分以清楚明了为原则，例如第一段谈图表的目的，其余自然段应当以所谈要点划分，最后一段可谈自己的理解和看法(也可不谈)。写作时的关键是每个要点谈完后,应给出例证，把该说地说完,然后再进入下一要点，不能不顾文章条理,把想到的内容随便乱放。
再语言方式上，要注意句式的变化，尽量避免反复使用某一句型。再并列情况较多时，设法采用连结词或关系词将领岁的内容串在一起，为文章的主题服务。全文的思路可以用主题句，自然段,逻辑词等手法表明，使读者感到作者的思路清晰，感到全文是个有机的整体。遇到众多雷同的词汇短语时，能变化的尽量变化，无力变化时可用句式变化弥补。
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