181.  Chances are that man will eventually land on Mars .

　　人类有可能最终登陆火星。

　　182.  The likelihood for peace in the Middle East remains questionable .

　　中东和平的可能性仍让人怀疑。

　　183.  The necessity for nuclear nonproliferation seems clear .

　　防止核扩散的必要性似乎清清楚楚。

　　184.  It is perhaps more accurate to consider the family as a blanket of security , rather than a cloak of bondage .

　　把家庭看作保护安全的毯子可能比把它看做束缚的斗篷更确切。

　　185.  While generalizations are dangerous , it is quite safe to present solid evidence .

　　抽象概括是危险的,但是,提供确凿的证据是万无一失的。

　　186.  It seems almost certain that China will achieve this year's economic growth targets .

　　中国将完成今年经济增长的目标似乎是毫无疑问的。

　　187.  Reaching this year's growth targets is almost a certainty .

　　达到今年的增长目标几乎是必然的。

　　188.  The urgency of the situation makes it necessary to reiterate the monumental problems of population growth .

　　情况的紧迫性使我们有必要重申人口增长的重大问题。

　　189.  A recent study revealed the surprising fact that many students pass examinations by relying on nothing more than rote memorization . It is horrifying to think that students graduate without a thorough understanding of the subject matter .

　　最近的一项研究显示了一个令人惊讶的事实：许多学生仅仅依靠死记硬背通过考试。想到学生对主题没有透彻地理解就毕业了是令人震惊的。

　　190.  Needless to say , advertising sells products . Where would we be without it ? Shelves would be empty , consumers would have few choices and products information would disappear .

　　毋庸讳言，广告推销产品。没有它，情况将会怎样？货架将空空如也，消费者的选择将减少，产品的信息将消失。