Why do you pull yourself out of bed every morning ___41___(go) to work or school? Knowing what motiv

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Why do you pull yourself out of bed every morning ___41___(go) to work or school? Knowing what motivates, you can help you find meaning in your work and focus on your goals.
Experts have many ways of describing and differentiating motivations because people care about so many different things. Some motivations such as money and praise are external (外部的). Bosses ___42___(usual) use them to encourage their employees to spare no efforts in their work. Other motivations, including fun, personal growth and feeling like one's work is important, ___43___(come) from within the person doing the action.These are ___44___(reliable) than external ones because they represent things that can never be taken away.
Since there are ___45___large number of existing motivations, ___46___is important to know which ones are persuasive to you. Trying to motivate yourself in a way that isn't ___47___(attract) to you will make it difficult to convince yourself to work. When ___48___(choose) a career, you should think about what motivates you and make some ___49___(decision) accordingly. If you are motivated by overcoming challenges, look for a career ___50___you can continually fight to get to a higher level.
When you know what motivates you, you will be able to motivate yourself to do the things necessary to succeed.
【答案】41. to go    
42. usually    
43. come    44. more reliable    
45. a    46. it    
47. attractive    
48. choosing    
49. decisions    
50. where
【解析】
本文是说明文。了解我们做事动机非常重要，它能激发我们成功。
【41题详解】
考查非谓语动词。动词不定式表示目的，为了上班，故填to go。
【42题详解】
考查副词。副词修饰动词，故填usually。
【43题详解】
考查谓语动词。复数名词Other motivations做主语，谓语动词也用复数，故填   come 。
【44题详解】
考查形容词比较级。than提示前面用形容词比较级，故填more reliable 。
【45题详解】
考查冠词。a number of表示许多，有大量的动力。故填a。
【46题详解】
考查代词。这里考查了句型it is+形容词+to do,it做形式主语。故填it。
【47题详解】
考查形容词。be动词后用形容词，故填attractive。
【48题详解】
考查非谓语动词。前后主语一致，表示人主动选择，用现在分词，故填choosing。
【49题详解】
考查名词。做一些决定，some修饰名词复数，故填decisions。
【50题详解】
考查定语从句关系词。分析句子结构可知，先行词为a career，指地点，在定语从句中做状语，故引导词应为关系副词where，故填where。