What is success? Different people hold different views on this ____（难题）. Some think that one is successful if he can make lots ____ money. Some argue that success means holding ____ important social position. Still others believe that whoever has got a top diploma is successful.

    A____ some people try to avoid failure at all costs, some people welcome it. Failure can be a good teacher. It always ____（教）us to do better next time.

    As you know, ____（无论什么）you do, there are always two possible ____ （结果）: success or failure. When you fail, you should never l____ heart. On the contrary（相反）, you should build up your confidence and work even ____. It is necessary for you to keep on p____ and never give up, just as people say.“The more you try, the more successful you'll be.”

“春节”、“中秋节”、“端午节”都是中国的传统节日。但现在有许多西方节日传入我国，如：“圣诞节”、“复活节”、“感恩节”等。你知道这些节日与哪一宗教有关吗?  (     )

已知如图，则不含阴影部分的矩形的个数是（　　）

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下面的计算正确的是（　　）