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

　　人类有可能最终登陆火星。

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

　　中东和平的可能性仍让人怀疑。

　　3.The necessity for nuclear nonproliferation seems clear.

　　防止核扩散的必要性似乎清清楚楚。

　　4.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。

　　5.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。