英語四級說明作文書寫思路

　　說明文是用言簡意賅的語言來介紹客觀事物，講清事理，并給人增加知識的一種文體。說明文解說事物的特點、發(fā)展變化規(guī)律，分析前因后果，目的在于使讀者明白事理，獲得必要的信息，對事物有個較完整明晰的了解和認識。說明文不同于記敘文和議論文，它重在給人介紹，讓人明白，因而，輕情義重事實。說明文與議論文關系密切，有人將其統(tǒng)稱為議論文。但在寫作的目的和方法上兩者仍有區(qū)別。說明文主要是通過事實客觀地解釋或說明事物本身;而議論文則以事實、數(shù)據(jù)等為證據(jù)，表明主觀見解，使讀者信服或贊同某一觀點。

　　歷年四級考試中的How I Overcome Difficulties in Learning English、My Ideal Job以及圖表作文的第一段都屬于說明文的.范疇，如，2002年6月的根據(jù)坐標圖寫題為Students Use of Computers的作文。

　　說明文必須按一定的順序進行說明：時間順序、空間順序、邏輯順序或認識順序，選擇具體的特點和細節(jié)來說明。

　　所以，說明文的思路要圍繞說明順序、事物的特點和細節(jié)展開。例如：

　　范文點評

　　A Famous Clock

　　When you visit London, one of the first things you will see is Big Ben, the famous clock which can be heard all over the world on the B.B.C. If the Houses of Parliament had not been burned down in 1834, the great clock would never have been erected. Big Ben takes its name from Sir Benjamin Hall who was responsible for the making of the clock when the new Houses of Parliament were being built. It is not only of immense size, but is extremely accurate as well. Officials from Greenwich Observatory have the clock checked twice a day. On the B.B.C. you can hear the clock when it is actually striking because microphones are connected to the clock tower. Big Ben has rarely gone wrong. Once, however, it failed to give the correct time. A painter who had been working on the tower hung a pot of paint on one of the hands and slowed it down!

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