1.Identifying the reasons for an emerging phenomenon which involves several complicated factors is far from an easy task. For example, some scientists attribute environmental deterioration to a series of natural factors, while others place the blame solely on inappropriate human behavior.
2.One can raedily trace the disappearance of dinosaurs to a major cataclysmic event.
人們很容易把恐龍消失的原因歸結為重大的災難性事件。
3.The raesons for poverty are many, but for the most part center on illiteracy, the lack of opportunities and in some cases pure laziness.
貧困的原因很多,但主要是因為缺少教育、缺少機會,有的情況下純粹是由于懶惰。
4.The reasons for antisocial behavior are both complicated and varied. I suggest the phenomenon results from inappropriate role models and the lack of well-defined norms of behavior. However, the main reason is quite likely the continuing degeneration of social values.
5.The causes of racial hatred are not readily definable. Sociologists, however, attribute them to the misguided concept of a superior race and an innate mistrust of people of color. Perhaps the main cause is quite simply ignorance.
6.The scourge of HIV/AIDS currently engulfing the world will quite likely be brought under control within the next few years thanks to the untiring efforts of scientists and researchers worldwide.
現在席卷世界的艾滋病的禍害很有可能由于全世界科學家和研究人員的不懈努力在未來幾年內得到控制。
7.One of the most common failures of people today is to avoid telling the truth. People must realize that avoidance and lying have never in the past and, in fact, never will right a wrong.
8.Increased urban pollution levels and the mounting death toll from motor vehicles accidents can mainly be attributed to the glut of automobiles appearing on city roads in recent years. Detrimental factors will quite likely outweigh the benefits of rising automobile usage.
9.The rising divorce rate in China can, at least in part, be attributed to spousal incompatibility, disparities in education levels, changing social attitudes and the increasing upward mobility of the younger generation.