题目内容：

完形填空（共20小题；每小题1分，满分20分）

阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。  

Introduction to Letters to Sam

Dear Reader,

Please allow me to tell you something before you read this book. When my  36  ,Sam, was born, my heart was filled with joy. I had been sitting in a wheelchair for 20 years before then, and I have been  37  ill many times. So I wondered if I would have the  38  to tell Sam what I had  39  .

For years I have been hosting a program on the  40  and writing articles for a magazine. Being  41  to move freely, I have learned to sit still and keep my heart  42  , exchanging thoughts with thousands of listeners and   43  . So when Sam was born, I  44  to tell him about school and friendship, Romance and work, Love and everything else. That’s how I started to write these  45  . I hoped that Sam would  46  them sooner or later.

However, that expectation  47  when Sam showed signs of autism(自闭症)at the age of two. He had actually stopped talking before the discovery of the signs. He  48  to communicate with others, even the family members. That was  49   for me but didn’t stop me writing on. I realized that I had even  50  now to tell him. I wanted him to  51  what it means to be “different” from others, and learn how to fight against the misfortune he’ll  52   as I myself, his grandfather, did. I just  53   if I could write all that I wanted to say in the rest of my life.

Now,  54  the book has been published, I have been given the chance. Every chapter in the book is a letter to Sam: some about my life, and all about what it means to be a   55  .   

Daniel Gottlieb

1. A. son            B. nephew      C. brother     D. grandson

2. A. seriously    B. mentally      C. slightly     D. quietly

3. A. ability      B. time          C. courage     D. responsibility

4.A. written         B. suffered      C. observed    D. lost

5. A. radio      B. television      C. stage       D. bed

6.A. ready       B. unable     C. anxious    D. eager

7.A. warm        B. broken     C. closed        D. open

8. A. hosts      B. visitors        C. readers     D. reporters

9.A. began       B. stopped      C. forgot      D. decided

10.A. letters        B. emails      C. books      D. diaries

11. A. find          B. read            C. collect      D. keep

12.A. developed   B. disappeared   C. changed     D. arrived

13. A. tried    B. refused         C. regretted     D. hoped

14. A. exciting      B. acceptable      C. strange     D. heartbreaking

15. A. less          B. everything      C. more      D. nothing

16. A. understand   B. explain      C. believe     D. question

17. A. fear     B. face            C. know      D. cause

18. A. felt          B. guessed     C. saw       D. doubted

19. A. as            B. once            C. though     D. if

20. A. teacher       B. child      C. man       D. writer