【正文】 ific Ocean to a height of thirtyfour meters. can guess the height of a wave by knowing__________. A. how fast the wind is blowing B. how long the wind blows C. how large the body of water is D. how the waves are built up37. When the wave is blowing at 80 kilometers per hour, the height of most waves will be __________. A. about one meter B. about eight meters C. about eighty meters D. about ten meters38. Air rises when________. A. the wind is blowing B. the body of water is large C. there is powerful wave D. the sun heats the earth39. The best title for this selection is __________. A. What Causes Waves B. The Largest Waves in History C. Beautiful Waves D. Waves in the Pacific Ocean BAustralia, the last continent, was discovered by ships belonging to some European nations in the seventeenth century. These nations were less interesting in changing it into colony(殖民地) than in exploring it. As in the early history of the United States, it was the English who set up the settlements in Australia. This history and the geography of these two British colonies have some other things in mon as well.Australia and the United States are about the same in size, and their western lands are both not rich in soil. It was the eastern coast of Australia and America that the English first settled, and both colonies soon began to develop towards the west. However, this westward movement took place more because the English were searching for better land than because the population was increasing. Settlements of the western part of both countries developed quickly after gold was discovered in America in 1849, two years later in Australia.Although the development of these two countries has a lot in mon, there are some striking differences as well. The United States gained its independence from England by revolution while Australia won its independence without having to go to war. Australia, unlike the United States, was firstly turned into a colony by English prisoners and its economic development was in wheat growing and sheep raising. By 1922, for example, Australia had fifteen times more sheep than it had people, or almost half as many sheep as there are people today in the United States. Yet, in spite of these and other main differences, Australia and the United States have more in mon with each other than either one has with most of the rest of the world.40. Who turned Australia into a colony? A. Britain B. Several European countries C. The United States D. None of the above the early history of America and Australia, both colonies developed towards the west firstly for the reason that ________ ?A. the population was increasing rapidly in the eastB. the English thought there might be richer land thereC. gold was discovered thereD. fewer people lived there 42. In the early 1920s, ________ .A. Australia had one fifteenth as many people as sheepB. There were more than sheep in Australia than in the United StatesC. The population in Australia was greater than that of the United StatesD. The United States had twice as many sheep as people 43. The last sentence in the last paragraph “…Australia and the United States have more in mon with each other than either of the rest of the world.” Means _______ A. the United States and Australia do not have any main differencesB. the United Stated and Australia have much in mon than they have with other countriesC. the United States and Australia have nothing in mon with the rest of the worldD. in mon with the rest of the world, the United States and Australia have a lot of differences C How Long Can People Live? Sh