20. _____, the disease diphtheria will produce a powder poison that will kill the patient.

A. If it untreated 　　　　　　　　　　　　 B. If is untreated

C. If being untreated 　　　　　　　　　 D. If untreated

第三节：完形填空(共20小题，每小题1.5分，满分30分)

After 21 years of marriage I discovered a new way of keeping alive the spark of love. A little while ago I had started to go out with another　 21　 . It was really my wife’s idea. “ I know you love her,” she said one day　 22　 me by surprise.

23 　woman that my wife wanted me to visit was my mother, who has been a widow for 19 years, but the demands of my 　24　 　and my three children had made it 　25　 to visit her only occasionally. That night I called to invite her to go out for dinner and a 　26　 , “I thought that it would be　 27　 　to pass some time with you. Just the two of us.” She 　28　 　it for a moment and then said, “I would like that very much.”

That Friday after work, as I drove over to pick her up, I was a bit　 29　 . When I arrived at her house, I 　30　 　that she, too, seemed to be nervous about our date. She waited at 　31 　with her coat on. She had curled her hair and was wearing the dress that she had worn to celebrate her last wedding anniversary. She 　32　 　from a face that was as radiant(容光焕发的)as an angel’s.

We went to a restaurant that, 　33　 　not elegant (雅致的), was very nice and cozy. My mother took my arm 　34　 　she were the First Lady. After we sat down, I had to read the menu. Her eyes could only read 　35　 　print. Half way through the menu, I 　36　 　my eyes and saw Mom sitting there staring at me. A lovely smile was on her lips. “It was I who used to have to read the 　37　 when you were small,” she said.

During the dinner we had an agreeable 　38　 , catching up on recent events in each other’s life. We talked　 39　 　much that we missed the movie. The 　40　 was very nice. Much more than I could have imagined.

19. It was difficult to keep a positive attitude when I had a list filled with things to do, _____ none sounded like fun.

　　 A. for which　　 B. to which　　 C. of which　　 D. from which

18. -Though Liu Xiang was unable to compete in the Beijing Olympics, he is still our hero.

- ____. Nobody will love him any less.

A. I don’t agree with you　　 B. I can’t agree more

C. I can’t agree any less　　　 D. I don’t agree more

17. It is commonly believed that it is ____ too much money has been invested in real estate (房地产) ____ has caused the crisis in Wall Street.

　　 A. that; that　　 B. that; which　　 C. what; that　　 D. because; that

16. I don’t think there can be anyone who is more suitable for the job than you are, ____?

　　 A. do I　　 　　 B. can’t　 he　　 C. is there　　 　 　D. aren’t you

15. ____ enough, the same noise from the backyard was heard every night at twelve o’clock.

　　 A. Strange　　 B. Strangely　　 C. Surprising　　 D. Surprised

14. When you are feeling distressed (哀伤的), you might be thinking about things you wish you _____ differently in the past or worrying about the things that you have to do in the future.

　　 A. did　　 　　　 B. have done　　 C. had to do　　 D. had done

13. The poor man stood there, with his hands _____, ______ his eyes upon the dark cave.

A. crossed; fixing　 B. crossing; fixing

C. crossed; fixed　　 D. crossing; fixed

12. Many fossils(化石) of the same kind of dinosaurs have been dug out from one place. They _____ when an entire group of dinosaurs got stuck all at once.

A. might be formed　　　 　B. could have been formed

C. might have formed　　 　D. should have formed

11. -How about _____ Christmas evening party?

- I should say it was _____ success.

A. a; a　　 B. the; a　　 C. a; /　　 D. the; /