1. The number of mountain gorillas is declining with such rapidity that the population is one-half in the twenty years between a count made by George Schaller in 1960 and the one made by Dian Fossey in 1980.
（A） with such rapidity that the population is one-half
（B） with such rapidity that the population was one-half
（C） so rapidly the population divided in half
（D） so rapidly that the population was halved
（E） in such rapidity that the population is halved
参考答案KEYS
1. D 2. E 3. B 4. A 5. B
6. C 7. D 8. A 9. C 10. E
11. D 12. B 13. C 14. E 15. D
16. E 17. A 18. B 19. A 20. D
2. The ordinance is intended to force householders to separate such hazardous waste like pesticides， batteries， fertilizers， and oil-based paints from the general stream of household trash.
（A） to separate such hazardous waste like
（B） that they should separate such hazardous waste like
（C） separating such hazardous wastes as
（D） that they should separate such hazardous wastes as
（E） to separate such hazardous wastes as
3. The distinctive hereditary tartans that are alleged to be worn since antiquity by members of the Highland clans were in fact designed by Scottish woolen manufacturers in the eighteenth and nineteenth centuries.
（A） that are alleged to be worn
（B） alleged to have been worn
（C） that are worn， it was alleged
（D） alleged as having been worn
（E） that are worn， allegedly
4. According to a panel of health officials， there has been a great deal of confusion in the medical profession about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to health.
（A） about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to
（B） with respect to obesity being a biological disorder posing serious health risks or if it is related more to appearance than
（C） over whether or not obesity is a biological disorder posing serious health risks or it is a condition more related to appearance than to
（D） about obesity and if it is a biological disorder posing serious health risks or a condition related to appearance more than to
（E） concerning whether obesity is a biological disorder posing serious health risks or it is a condition related to appearance more than
5. A recent study of ancient clay deposits has provided new evidence supporting the theory of global forest fires ignited by a meteorite impact that contributed to the extinction of the dinosaurs and many other creatures some 65 million years ago.
（A） supporting the theory of global forest fires ignited by a meteorite impact that