2019年公共英語三級寫作模擬題：說明文

　　說明文

　　說明文是對客觀事物的特征、功能和作用等進行說明的文體。要求根據(jù)客觀事實，如實地逐一予以說明。寫作時，可以按時間、空間、邏輯或認識等順序展開。下面就是一個依照邏輯上的因果關系而展開的說明文。

　　下面就以一篇習作《青春》來看看這種文章的寫作。

　�、偾啻菏鞘裁�? ②對于不同年齡的人，青春又意味著什么? ③就大學生而言，青春是……

　　On Youth

　　In the case of college students，youth is just the same as a race in which knowledge competes against time for their sake. During the course of this competition，most students try and invest as much time as possible in the ocean of knowledge，while some yield up the pursuit of knowledge to the enjoyment of pleasures that time offers. It has al-ready been proved that economy of knowledge will feature the century to come，which is a direct challenge to the college students，masters of the new century. If a student realizes the challenge as well as the fact that anyone has youth but once，he or she will never let youth down and help knowledge always hold the lead in the race against time.

　　【譯文】 青春

　　就大學生們而言，青春恰似知識為了大學生們的利益而與時間展開的一場競爭。在這場競爭中，大多數(shù)學生千方百計將盡可能多的時間投入知識的海洋，但有一些學生把對知識的追求讓位于及時行樂�，F(xiàn)已證實，知識經(jīng)濟將是下一個世紀的主要特征;這是對大學生——新世紀主人——的直接挑戰(zhàn)。如果一個學生能意識到這一挑戰(zhàn)以及一個人的青春只有一次的事實，那他(她)就不會辜負青春，使知識在與時間的賽跑中永遠處于領先地位。