Australia and the United States are about the same in size, and their western lands are both not rich   5    soil. It was on 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   6   (move) took place   7           because the English were searching for better land than the population was increasing. Settlements of the west part of both countries developed quickly after gold    8         (discover) in America in 1849 and in Australia two years later.

Although the development of these two countries has a lot in common, there are some   9   (strike) 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,  10   (like) 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. Australia and the United States have more in common with each other than either one has with most of the rest of the world.

老年人气郁质运动保健是（）。

A.建议老年人每天有半小时至1小时的有氧运动。可选择下棋、打牌、瑜珈等体娱游戏，以闲情怡志，促进人际交流。八段锦的“左右开弓似射雕”和“双手托天理三焦”加做1-3遍

B.建议老年人形成良好的运动习惯，每日进行半小时至1小时的有氧运动。推荐保健运动为八段锦、太极剑及太极拳

C.老年人应避免剧烈的体育活动，太极拳和八段锦比较适合这类群体。推荐：呼气提肛法。明代“养生十六宜”指出“谷道宜常撮”，谷道指肛门。首先吸气收腹，收缩并提升肛门，停顿2-3秒之后，再缓慢放松呼气，如此反复10—15次。八段锦的“两手攀足固肾腰”和“攒拳怒目增力气”加做1-3遍

D.老年人在运动中应注意避风寒，不宜大汗，适合做一些温和的有氧运动如慢走以及太极剑、太极拳等。八段锦的“背后七颠百病消”和“两手攀足固肾腰”加做1-3遍