A．Far From Failing

B．Perfectly Imperfect

C．Perfectionism Phenomenon    

D．Unachievable American Dream

解析：B　考查主旨大意。文章通篇讨论完美主义者的心态和做法，并在最后一段得出结论“It's our imperfections that make life interesting and they help us... We are designed to be perfectly imperfect.”，由此可知，正是我们的“不完美”使得我们的生活变得有趣，帮助我们成为更强大且适应性更强的人，有些事情根本就是不可能实现的，不完美反而造就更好的我们，故选B项。

6．Which of the following is a perfectionist most likely to agree?

A．Nobody is perfect.

B．Be generous with praise.

C．There is no best, only better.

D．A contented mind is an everlasting feast.

解析：C　考查细节理解。根据文章第二段最后一句中的“you wear the ‘not good enough’ label each and every day”可知，完美主义者总认为自己不够好。C项：没有最好，只有更好，符合完美主义者的心态。故选C项。

7．What can we infer from the underlined sentence in Paragraph 4?

A．More and more people are tolerating mistakes.

B．The society is partly to blame for perfectionism.

C．Many young people find it impossible to be perfect.

D．It's unusual for a society to seek perfectionism nowadays.

解析：B　考查句意猜测。根据第四段中的“The attempt to be perfect is called perfectionism and... in our relationships.”可知，美国梦就是追求完美，这个无法实现的梦想正在破坏着我们的情感和心理健康。美国梦代表的是美国社会，而这个夸大错误、追求完美的社会对年轻人追求完美的行为产生了一定影响，所以这个社会应为完美主义负部分责任，故选B项。