the husk might be the cause of the disease. Indeed thiswas the case. The element needed to prevent “beri-beri” was shortly afterwards isolated from Ace husks and is now known as vitamin B. Nowadays， this terrible disease is much less common thanks to our knowledge of vitamins.
11. A good mixed diet______.
A. normally contains enough vitamins
B. still needs special provision of vitamins
C. is suitable for losing weight
D. is composed of fruits and vegetables
12. The disease “beri-beri”______.
A. kills large numbers of Eastern peoples
B. is a vitamin deficiency （缺乏） disease
C. is caused by diseased rice
D. can be caught from diseased chickens
13. The chickens Eijkman noticed in the hospital yard______.
A. couldn't digest the polished rice
B. proved “beri-beri” is caused by germs
C. were later cooked for the patients' food
D. were suffering from“beA-ben”
14. According to Eijkman， polished rice______.
A. was cheaper than unpolished rice
B. was less nourishing （有营养的） than unpolished Ace
C. was more nourishing than unpolished rice
D. cured “beri-beri”
15. The chemical substance missing from polished rice______.
A. was vitamin B
B. did not affect the chickens
C. was named the Eijkman vitamin
D. has never been accurately identified
Part II Vocabulary and Structure（30%）
Directions： In this part there are 30 incomplete sentences. For each sentence there are four choices marked A， B， C， and D. Choose the ONE answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
16. By no means _____to move to a new place far away from her workplace， because it isn't convenient for her family and herself.
A. Jane will agree
B. will Jane agree
C. Jane will disagree
D. will Jane disagree
17. You can， _____ the sky is clear， see as far as the old temple on top of the mountain， but not today.
A. when
B. where
C. though
D. because
18. With everything she needed _____， she went out of the shop， with her hands full of shopping bags.
A. bought
B. to buy
C. buying
D. buy
19. Having taken our seats， _____.
A. the professor began the lecture
B. the lecture began in no time
C. we were attracted by the lecturer immediately
D. the bell announced the beginning of the lecture
20. In recent years many football clubs _____ as business to make a profit.
A. have run
B. have been run
C. had been run
D. will run
21. After 15 years in the United States， he has finally decided to_____ American citizenship.
A. concentrate on
B. apply for
C. look out for
D. appeal on
22. It is well known that teaching is a job _____ enough patience.
A. calling on
B. calling off
C. calling for
D. calling in
23. Surely it doesn't matter where the clubs get their money； what_____ is what they do with it.
A. counts
B. applies
C. stresses
D. functions
24. I didn't expect to receive a postcard from you！ It's really _____my wildest imagination.
A. behind
B. beyond
C. except
D. through
25. It doesn't make____ to buy that expensive coat when these
cheaper ones are just as good.
A. sense
B. opinion
C. use
D. program
26. The task is too much for me， so I can't carry on _____ any longer.I must get some help.
A. singly
B. simply
C. alone
D. lonely
27. Americans eat _____vegetables per person today as they did in 1910.
A. more than twice
B. as twice as many
C. twice as many
D. more than twice as many
28. The two girls are getting on very well and share _______ with each other.
A. little
B. much
C. some
D. none
29. The taxi driver was put in_____prison because his car had knocked down a child. His wife went to_____ prison to see him twice a month.
A./； /
B. the； the
C./； the
D. the； /
30.Without my glasses I can hardly_____ what has been written in the letter.
A. make for
B. make up