When a strong earthquake occurs on the ocean floor rather than on (36)__________ , a tremendous force is (37)_____ on the seawater and one or more large, destructive (38)____ called tsunamis can be formed. Tsunamis are commonly called tidal waves in the United States, (39)________ this is really an inappropriate name in that the (40)______ of the tsunami is an underground earthquake rather than the ocean’s (41)_________ . Far from land, a tsunami can move through the wide open vastness of the ocean (42)____ a speed of 600 miles (900 kilometers) per hour and often can travel tremendous (43)____ without losing height and strength. When a tsunami reaches shallow coastal water, it can reach a (44)_________ of 100 feet (30 meters) or more and can cause tremendous flooding and (45)_________ to coastal areas.
36. a. land b. ground c. earth d. soil
37. a. installed b. exerted c. exhausted d. struggled
38. a. currents b. streams c. waves d. tides
39. a. therefore b. and c. for d. but
40. a. cause b. reason c. effect d. force
41. a. surface b. tides c. waves d. water
42. a. in b. with c. for d. at
43. a. trips b.journeys c. distances d. spaces
44. a. length b. height c. strength d. weight
45. a. damage b. harm c. ruin d. spoil
36 A
37 B
38 C
39 D
40 A
41 B
42 D
43 C
44 B
45 A
