题目内容：

We often talk about ourselves as if we have permanent genetic defects (缺陷) that can never be changed. “I’m impatient.” “I’m always behind.” “I always put things ______!” You’ve surely heard them. Maybe you’ve used them to describe ______.

These comments may come from stories about us that have been _____ for years—often from ______ childhood. These stories may have no ______ in fact. But they can set low expectations for us. As a child, my mother said to me, “Marshall, you have no mechanical (操作机械的) skills, and you will never have any mechanical skills for the rest of your life.” How did these expectations ______ my development? I was never ______ to work on cars or be around  ______. When I was 18, I took the US Army’s Mechanical Aptitude Test. My scores were in the bottom for the entire nation!

Six years later, ______, I was at California University, working on my doctor’s degree. One of my professors,Dr. Bob Tannbaum, asked me to write down things I did well and things I couldn’t do. On the positive side, I ______ down, “research, writing, analysis, and speaking.” On the ______ side, I wrote, “I have no Mechanical skills.”

Bob asked me how I knew I had no mechanical skills. I explained my life ______ and told him about my ______ performance on the Army test. Bob then asked, “______ is it that you can solve complex mathematical problems, but you can’t solve ______ mechanical problems?”

Suddenly I realized that I didn’t ______ from some sort of genetic defect. I was just living out expectations that I had chosen to ______. At that point, it wasn’t just my family and friends who had been ______ my belief that I was mechanically hopeless. And it wasn’t just the Army test, either. I was the one who kept telling myself, “You can’t do this!” I realized that as long as I kept saying that, it was going to remain true. ______ , if we don’t treat ourselves as if we have incurable genetic defects, we can do well in almost ______ we choose.

1.A. off    B. away    C. up    D. down

2.A. them    B. myself    C. others    D. yourself

3.A. said    B. spoken    C. repeated    D. spread

4.A. as far back as    B. as long as    C. as well as    D. as much as

5.A. plot    B. basis    C. cause    D. meaning

6.A. lead    B. improve    C. inspire    D. affect

7.A. agreed    B. forbidden    C. hoped    D. encouraged

8.A. means    B. equipments    C. tools    D. hammers

9.A. however    B. therefore    C. somehow    D. instead

10.A. calmed    B. took    C. laid    D. got

11.A. passive    B. negative    C. active    D. subjective

12.A. roads    B. trips    C. experiences    D. paths

13.A. unexpected    B. excellent    C. poor    D. average

14.A. Why    B. What    C. How    D. When

15.A. hard    B. advanced    C. usual    D. simple

16.A. arise    B. suffer    C. separate    D. come

17.A. receive    B. suspect    C. adapt    D. believe

18.A. strengthening    B. weakening    C. disliking    D. accepting

19.A. As a result    B. On the contrary    C. In addition    D. At the same time

20.A. nothing    B. something    C. anything    D. little