B．couldn’t help to cry

　　C．had no right to cry

　　D．couldn’t help but cry

　　19．A.what

　　B．when

　　C．whether

　　D．why

　　20．A.single

　　B．poor

　　C．ordinary

　　D．normal

　　三、阅读理解

　　Some blogs have been giving attention to Tim Harford’s new book Adapt：Why Success Always Starts with Failure.For the good of the world，more people should be aware of its contents.So I’m doing my bit to make it known to the public.

　　Harford starts out from the starting point that the world is a very complicated and difficult place.At the dawn of the automobile industry roughly 2,000 car companies sprang into being.Less than 1 percent of them survived.Even if you make it to the top，it is very hard to stay there.The historian Leslie Hannah identified the ten largest American companies in 1912.None of those companies ranked in the top 100 by 1990.

　　Harford’s basic lesson is that you have to design your life to make effective use of failure.You have to design systems through trial and error，or，to borrow a term from the natural word，evolution.Most successful enterprises are built through a process of exploring and adaptation，not planning.

　　The Russian thinker Peter Palchinsky understood the basic structure of smart change.First seek out new ideas and approaches.Next，try them on a scale small enough that their failure is survivable.Then find a feedback mechanism(反馈机制)so you can tell which new thing is failing and which is succeeding.

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