US president Barack Obama told students that it takes hard work in school to prepare for a

US president Barack Obama told students that it takes hard work in school to prepare for a rewarding career in his “back to school” speech, 36 last Tuesday in Virginia, US. Here is excerpt （节选）from his speech:
I know that sometimes, you get the 37 that you can be rich and successful without any hard work – 38 your ticket to success is through rapping or basketball or being a reality TV star, when chances are, you’re not going to be any of those things. But the truth is, being successful is 39 .You won’t love every subject you study. Not every homework assignment will seem completely important to your life right this minute. And you may not succeed at 40 the first time you try.
That’s OK. Some of the most successful people in the world are the ones who’ve had the most 41 .JK Rowling’s first Harry Potter book was 42 12 times before it was finally published. Michael Jordan was 43 his high school basketball team, and he lost hundreds of games and missed thousands of shots during his career. But he once said. “I have failed over and over and over again in my life. And that is why I succeed.”
These people succeeded because they understand that you can’t let your failures 44 you. No one’s 45 being good at things; you become good at things through hard work.
Don’t be afraid to ask questions. Don’t be afraid to ask for help when you need it. I do that every day. Asking for help isn’t a sign of weakness; it’s a sign of 46 . It shows you have the courage to admit when you don’t know something, and to learn something new.
And even when you’re 47 , even when you’re discouraged, and when you feel like other people have given up on yourself, you won’t give up on yourself. Because when you give up on yourself, you give up on your country.
36. A. addressed B. claimed C. delivered D. announced
37.A. feelings B. definition C. concept D. sense
38. A. that B. which C. what D. whatever
39. A. inaccessible B. hard C. rough D. unavailable
40.A, anything B. everything C. nothing D. something
41. A. effort B. attempts C. failures D. successes
42. A. denied B. turned away C. declined D. rejected
43. A. cut from B. cut off C. cut down D. cut in
44. A. confirm B. define C. identify D. prove
45. A. brought up B. raised C. fed D. born
46. A. strength B. courage C. weakness D. perseverance
47. A. struggling B. fighting C. trying D. succeeding36. C. 37.D. 38. A. 39.B. 40.B. 41. C. 42. D. 43.C. 44.B. 45.D．46.A. 47.A.

(答案→)36. C. 37.D. 38. A. 39.B. 40.B. 41. C. 42. D. 43.C. 44.B. 45.D．46.A. 47.A. 解析：解析:36. C. deliver a speech，“发表演讲”， address somebody, 对某某讲话，claim，“认领，宣称”，announce，“口头通知，口头宣布”，根据上下文，此句意思为“上周二发表的的演讲”37.D.此句的意思是“我知道，有时候你有这样的感觉-你有时候无需努力就可以很富有和成功。Sense,感觉，明智；feelings,情感，感情；concept，概念；definition，定义38. A.“ ---”引导的是that you can be rich and successful without any hard work的同位语，所以也要用that引导，对前面的内容进行解释。39.B.此句的意思是成功并不是容易的，因为这里有一个but.与前面的内容正好相反。并不是说不能成功（unavailable），也不是说成功无法进入（inaccessible），rough，“粗野的，粗糙的”。40.B.根据上下文，意思是“你在第一次尝试时，可能不会每件事情都成功”，与下文的“要经历许多失败”相符。41. C.根据下文举的例子JK Rowling和Michael Jordan，可知，要获得成功必须经历许多挫折和失败。42. D.这里指杰克罗琳《哈利波特》这本书曾经拒绝过十二次才出版。decline，委婉拒绝，下降；turn away= not allow sbd to enter；reject= refuse to use or accept or consider, throw away as useless or imperfect; deny=declare untrue; refuse to accept as a fact; refuse to give or allow…拒绝，否认，与 admit的意思相反；43.C. 此句的意思是麦克.乔丹曾经被他的中学的篮球队裁掉。Cut off, “ 切断（电源，水等的供应”;cut down, “ 减少，砍伐”; cut in ，“插嘴，打断”；cut from, “ 从...中剪掉，裁掉”。44.B.根据上下文，意思是“你不能让失败限制你，或给你下定义，说你不能取得成功”。confirm。“确认”；identify，“辨认身份”。45.D．根据下文you become good at things through hard work，可知“没有人天生就擅长于一些事情”。46.A.根据Asking for help isn’t a sign of weakness; it’s a sign of ，weakness与strength正好意义相对，B项courage 与下文It shows you have the courage to admit when you don’t know something, and to learn something new 意思重复了，所以B项不对。47.A. struggling (挣扎，做出极大努力，奋力)与 discouraged, give up 一致。

感谢回答，我学习了