请给下列各题中的图形命名，并给出名称的定义：

（1）在下列各题的横线上填上“＞”“＜”或“=”

      ①       ； ②  3       9 ；   ③ -0.5        0.25  ；   ④       

（2）       探索a与a²的大小关系。

请你观察（1）的大小关系，回答下列问题。

      ① 当a<0或a>1时，a        a²     ；

      ② 当a         时，a = a²     ；

      ③ 当0< a < 1时，a        a²    

阅读下面短文，根据所给语境，按要求完成下列各题。
Failure is what often happens. It is everywhere in our life. Students may fail in exams, scientists may fail in their research work, and players may fail in competitions. (A) Although failure happens to everyone, but different people’s attitudes(态度) towards failure are different.
Some people don’t think that their failure is an important thing at all. So they pay no attention to it. As a result, they will have the (B)      failure later. Some people think they themselves are fools and lose their hearts in everything after they get failure. Then they(C)      
their time and energy on useless things. At last, they may really be fools as they have thought.
（D）Other people are quite different from these two kinds of people mentioned above. Instead of being hopeless and lost, they draw a lesson from every failure and become more experienced. (E) they, after, will ,hard, in, work, be , the, successful , end. So we should draw a lesson from every failure and become more experienced.
【小题1】 (A)处句中有一处错误，请找出并改正。（可用文字叙述）
                                                                           
【小题2】在( B )、(C )处的横线上分别填上一个单词（B）        （C）           
【小题3】将(D)处句子译成汉语：                                              。
【小题4】 将(E)处的单词连成句子：                                           
                                                                           
【小题5】请从下面的选项中给短文选个标题，将答案标号填在此横线上：             

A．Draw a lesson from every failure	B．The attitudes towards failure
C．Failure is everywhere in our life	D．Failure is very important