文档介绍：<2007职称英语选读>解析
第16课-第30课
二OO七年二月
第十六课、A World without Oil(假如世界没有石油)
1. Have you ever stopped to think how your life would change if the world ran out of oil? Take a look at your day. The roof of your home is probably made waterproof by an oil product, bitumen. The same product is used for the road surface outside your home. Before you leave to go to work or school, just examine your surroundings. Is the room warmer than the cold air outside? Oil, or electricity from oil-fed generators may be keeping fortably warm. If you fortably cool in a tropical climate, your air conditioning unit may also depend on oil-fed generators.
1、你曾想过没有,如果世界上用尽了石油,你的生活会发生什么样变化呢?请看一看你的日常生活。你家的屋顶可能是用一种叫沥青的石油产品做成防水的。沥青同样可用来铺你家外面的路面。在你离家去上班或上学之前,请观察一下你周围的环境。房间里会比外面冷空气暖和吗?这是石油或由燃油发电机发出来的电使你感到舒适温暖。如果你在炎热的气候里感到舒适凉爽,那么你家的空调器可能也是靠燃油发电机工作的。
stopped to think ==停下来去想; run out of =用完;take a look=注视;roof=屋顶; probably=大概;waterproof=防水;bitumen=沥青;the same=一样;is used for=用来做….; road=道路;surface表面;outside=外面;leave=离开;examine=调查;surroundings=环境;warm=暖和;electricity=电;oil-fed =喂油的,fed-feed过去分词;generator=fortably =舒适;cool=凉爽;tropical=热带;climate=气候;air conditioning=空调; unit =装置;depend on =依靠
……..how your life would change if the world ran out of oil?这是虚拟语句,“would”和“ran ”不是表示过去时,而是表示现在时间的虚拟语气,这是if引起的虚拟条件。
如果上面的句子还原了应该是:if the world run out of oil(现在时),how will your life change(一般将来时)?如果世界上用尽了石油,你的生活会发生什么样变化呢?
 
虚拟语句的技巧:
一、注意:在虚拟语句话中不用was,所有人称都用were
二、在时态上的变化遵守如下5条规则:
1、现在时----退----过去时
2、现在完成时----退----过去完成时
3、过去时----退-----过去完成时
4、一般将来时----退-----过去将来时
5、过去将来时----退-----过去将来完成时
…..how your life would change(一般将来时----退-----过去将来时) if the world ran out of oil(现在时----退----过去时)?这个虚拟语句在时态上的变化符合了第1条和第4条规则。
2. In the kitchen and the bathroom you will probably see some plastic fittings such as tiles and working surfaces; polystyrene cups; curtains made from synthetic materials; disinfectants and detergents. All owe their origin to the oil known as petroleum (Latin/Greek 'petra', rock, and Latin 'oleum', o