为了提高广大学生的英语水平，提高英语专业学生的专四通过率，特提供以下英语长难句，供大家练习参考：
191. These ads were strategically placed among family-oriented TV shows and programs involving nature and America in order to most effectively reach target audiences.
192. Why does cream go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition-a finding that could help rid some processed foods of chemical preservatives(保存).
193. If FIFA, football’s international ruling body, wants to improve the standard of refereeing(裁判) at the next World Cup, it should encourage referees to keep their eyes on the action from a distance, rather than rushing to keep up with the ball, the researcher argues.
194. While still in its early stages, welfare reform has already been judged a great success in many states at least in getting people off welfare.
195. But for many, the fact that poor people are able to support themselves almost as well without government aid as they did with it is in itself a huge victory.
191、这些广告被放置在面向家庭的与自然和美国有关的电视节目里面,以便最有效的接触到目标观众
192、为什么奶油比黄油坏的快呢?已有些研究者认为他们找到了答案,这与食物的结构有关,而不是它的化学成分—这一发现使得有些化学处理保存食物的方法无效了。
193、研究者们认为：如果国际足球裁判组织FIFA想要在下一届世界杯比赛中提高评判水平的话，就应该远距离观察比赛，而不是冲进球场光盯着足球。
194、还在初级阶段的时候，福利改革在很多国家就是一个成功了—至少它使许多人摆脱了对福利的依靠。
195、但是对许多人来说，穷人们在没有政府的援助下自己养活自己本身就是一个巨大的胜利。