作文題目：
Many technological innovations have been “double-edged swords” with positive and negative effects on society at large. The automobile is one of such innovations. What do you think is the overall impact of automobiles on society? Write an expository essay (about 300 words) expressing your views on it.
參考範文：
The issue that the automobile production is a double-edged sword is rather complex, since it involves a conflict between industrial expansion and the strategy of sustainable development. However, the final judgment should depend on a case-by-case analysis of several key factors.
Since the 1960s, the world has witnessed some dramatic changes in the automobile technology. As a result, a growing number of transport vehicles have been manufactured, thus providing citizens with growing convenience and efficiency. Additionally, some economists believe that automobile production contributes to the national economy by paying more tax and providing more job vacancies. For example, In the United States or Japan, automobile industry remains the backbone of their marketing economy, the primary source of national wealth and the major provider of jobs. However, in some other instances, the above-mentioned situation is not always adequate. For instance, suppose a car that is poorly designed and gives off such poisonous gas as monoxide, methane or acetylene. Surely enough, the more cars a company manufactured, the more likely automobile production should be responsible for the environmental degradation of urban regions and the worsening health of the citizens. Another exception to this approach is the case of traffic congestion. Admittedly, when vehicles of various kinds rush to the same avenue, traffic jams invariably occur, which always gives rise to delays or accidents. These are exceptional cases, yet they do exist.
Given the analysis above, it is justified to conclude that a proper use of automobiles has to be emphasized. For one thing, governmental departments are obliged to take concrete measures to boost automobile production while keeping track of the emission of pollutants. For another thing, citizens should be aware of the corresponding side effects while enjoying the leisure of their car ride. Only in this way can they benefit greatly from the rapid growth of automobile manufacture.
參考譯文：
汽車生產的問題是一把雙刃劍是相當複雜的,因為它涉及到一個工業擴張和可持續發展的策略之間的衝突。然而,最終的`判斷應該取決於個案分析的幾個關鍵因素。
自1960年代以來,世界已經見證了汽車技術的一些顯著變化。因此,越來越多的交通工具被製造,從而為市民提供便利和效率增長。此外,一些經濟學家認為,汽車生產對國民經濟通過支付更多的稅收和提供更多的職位空缺。舉個例子,在美國或日本汽車工業仍然是市場經濟的支柱,國家財富的主要來源和工作的主要提供者。然而,在其他情況下,上述情況並不總是足夠的。例如,假設一個汽車設計不良,放出一氧化碳等有毒氣體甲烷和乙炔。肯定不夠,汽車公司生產的越多,就越有可能汽車生產應該負責城市地區的環境退化和惡化的健康公民。這種方法的另一個例外是交通擁堵的情況。誠然,當車輛各種急於相同的大道,交通堵塞總是發生,總是引起延誤或事故。這些都是異常情況,但他們確實存在。
鑑於以上分析,它是合理的得出這樣的結論:必須強調正確使用汽車。首先,政府部門必須採取切實措施來提高汽車生產時跟蹤汙染物的排放。另一方面,公民應該意識到相應的副作用,享受休閒的車程。只有這樣,他們才能從汽車製造的快速增長中獲益良多。
