1. Typical of the grassland dwellers of the continent is the American

antelope， or pronghorn.

2. Of the millions who saw Haley‘s comet in 1986， how many people will live

long enough to see it return in the twenty-first century.

3. Anthropologists have discovered that fear， happiness， sadness， and

surprise are universally reflected in facial expressions.

4. Because of its irritating effect on humans， the use of phenol as a

general antiseptic has been largely discontinued.

5. Insgroupsto remain in existence， a profit-making organization must， in

the long run， produce something consumers consider useful or desirable.

6. The greater the population there is in a locality， the greater the need

there is for water， transportation， and disposal of refuse.

7. It is more difficult to write simply， directly， and effectively than to

employ flowery but vague expressions that only obscure one‘s meaning.

8. With modern offices becoming more mechanized， designers are attempting

to personalize them with warmer， less severe interiors.

9. The difference between libel and slander is that libel is printed while

slander is spoken.

10. The knee is the jointswheresthe thigh bone meets the large bone of the

lower leg.

11. Acids are chemical compounds that， in water solution， have a sharp

taste， a corrosive action on metals， and the ability to turn certain blue

vegetable dyes red.

12. Billie Holiday‘s reputation as a great jazz-blues singer rests on her

ability to give emotional depth to her songs.

13. Essentially， a theory is an abstract， symbolic representation of what

is conceived to be reality.

14. Long before children are able to speak or understand a language， they

communicate through facial expressions and by making noises.

15. Thanks to modern irrigation， crops now grow abundantly in

areasswheresonce nothing but cacti and sagebrush could live.

16. The development of mechanical timepieces spurred the search for more

accurate sundials with which to regulate them.

17. Anthropology is a science in that anthropologists use a rigorous set of

methods and techniques to document observations that can be checked by

others.

18. Fungi are important in the process of decay， which returns ingredients

to the soil， enhances soil fertility， and decomposes animal debris.

19. When it is struck， a tuning fork produces an almost pure tone，

retaining its pitch over a long period of time.

20. Although pecans are most plentiful in the southeastern part of the

United States， they are found as far north as Ohio and Illinois.

----沈阳托福培训