- 相關推薦
大學英語六級考試完型試題模擬訓練附答案
Time is a bird for ever on the wing.以下是小編為大家搜索整理的大學英語六級考試完型試題模擬訓練附答案，希望能給大家帶來幫助!更多精彩內容請及時關注我們應屆畢業生考試網!
Leonardo da Vinci was the first man to suggest that growing trees add a new ring in their trunks each year. The 11 in these rings relates to the physical conditions which the tree experiences. Thus, trees grown in a 12 area and time each develop a pattern or configuration of their rings.
This 13 was of little significance until Andrew E. Douglas began to study tree rings in Arizona in 1900. Using a technique called cross dating, he was able to employ tree rings to the study of archaeological sites and date the ruins with 14 . Some were as old as 6700 B. C. ! This study of tree rings is called dendrochronology.
In time the cross dating was 15 by a carbon 14 process. This approach measured the amount of carbon 14 radiating from a piece of wood and 16 to determine the age of that wood. Further use of the carbon 14 technique has shown that the radiation process is more complex and less 17 than had been at first thought.
The most 18 aspect of tree ring research is now called
dendroclimatology. This 19 of the reconstruction of climates and climatic cycles and events from the evidence found in the tree rings. From this it is hoped that a 20 of drought cycles can be determined in the American Southwest. Such information will be of great help in determining the life and ecology of that region of the United States.
A. thus
B. model
C. variation
D. concept
E. accuracy
F. exciting
G. consists
H. given
I. proposition
J. composes
K. further
L. pattern
M. supplemented
N. reliable
O. excellent
參考答案
11. C 12. H 13. D 14. E 15. M 16. A 17. N 18. F 19. G 20. L
【大學英語六級考試完型試題模擬訓練附答案】相關文章：
英語四級考試完型填空試題及答案04-28
大學英語CET6完型填空摸底訓練附答案07-30
專四考試完型填空模擬訓練題201706-27
成人學位英語考試完型試題沖刺訓練及答案06-05
2018考研英語完型填空專項試題及答案06-28
2017考研英語完型填空沖刺試題及答案08-30
2017英語六級考試備考試題附答案07-01
英語六級閱讀模考試題附答案08-08
專業英語四級考試完型填空試題及答案08-20