澳大利亚针鼹的简介

[澳大利亚中英文简介]澳大利亚（Australia）是全球土地面积第六大的国家，国土比整个西欧大一半。澳大利亚不仅国土辽阔，而且物产丰富，是南半球经济最发达的国家，是全球第四大农产品出口国，也是多种矿产出...+阅读

澳大利亚针鼹的简介

是现存最原始的哺乳动物之一，生活在澳大利亚各地，寒冷时会冬眠。它的体温恒定.

针鼹身上有坚硬的刺，口中无牙，外表像刺猬，针鼹有呈管状的长嘴，鼻孔开在嘴边，舌长并带粘液，以取食白蚁和蚁类等；四肢坚强，各趾有强大的钩爪，爪长而锐利，可以用来掘土和挖掘蚁巢。

针鼹身上短小而锋利的棘刺是它的护身符但，这些刺并没有牢牢地长在身上。当遇到敌害时，针鼹会蜷缩成球或钻进松散的泥土中迅速消失，或把有倒钩的刺像箭一样飞速射向敌害体内。针鼹能以惊人速度掘土为穴将自身埋在土中。

针鼹到了繁殖时期，雌兽腹部长出像袋鼠一样的育儿袋，产卵后，用嘴将卵衔入育儿袋中孵化。卵内只有蛋黄，没有蛋白。小兽出世后，留在袋囊中从母亲的毛束下舐吸滴落下来的乳汁。经过50天左右，小兽长大，离开母体，育儿袋也就自然消失了。

针鼹是世界仅有的两种单孔目动物（另一个是鸭嘴兽）之一。它们生活在澳大利亚和新几内亚。针鼹以蚂蚁和白蚁为食，能帮助树木清除虫害。它们也是卵生哺乳动物，每年5月左右，雌性针鼹的腹部会长出一个临时育儿袋，产下一个白蛋并用嘴把蛋放入育儿袋中进行孵化，幼针鼹出生后就在母亲的口袋里吮吸经母亲毛孔分泌出来的乳汁，7-8周后断奶，母针鼹的育儿袋也随之消失。目前针鼹已是濒临绝种的动物。

针鼹行动笨拙，而且几乎是个瞎子。它们的繁殖能力不强。因为没有牙齿，针鼹的食物仅仅限于那些能够用舌头捉到的动物。然而，它们却顽强地生存了下来，而且在至少八千万年里没有什么改变。针鼹能够成功的生存是有原因的。它们最主要的捕食对象是蚂蚁，而蚂蚁是所有昆虫中生存最成功的一种，它分布在最广泛的地区。针鼹专心致志地以蚂蚁为食。它那象铲子一样粗壮的腿更适合于挖掘而不是行走，正是它们这种笨掘使得它更能适应环境。

针鼹能够同时用四肢挖掘，它把地面上的土刨到身体两边，这样它就可以垂直地往下钻。当针鼹毫无保护的腹部下到地面，它就会用针刺形成一个颇具有效的防护体系，以抵抗任何可能出现的食肉动物的攻击。白蚁也是针鼹喜爱的食物。针鼹能够非常技巧使用它那长长的、坚硬的舌头摸索着深入蚁巢。针鼹会在蚁巢用餐长达半个小时，吞食几千只白蚁。它不能咀嚼，因为它没有咀嚼肌，也没有牙齿，它只能把食物放在舌头的后部压碎。

一天中为了觅食，针鼹要来回徘徊十八公里。针鼹还会专门寻找食肉蚁。这种凶猛的食肉蚂蚁是唯一能够冲破针鼹防线的昆虫，但它对针鼹的伤害并不大，因为针鼹从食肉蚁身上得到的好处要比挨咬的损失大得多。

鸭嘴兽在洞中孵卵，而针鼹则在育儿袋里孵卵。雌针鼹的育儿袋每年发育一次，以盛放后代。孵化出来的小针鼹就在育儿袋里成长，直到浑身是刺为止。刚出生的小针鼹仅重零点四克，刚出生的小针鼹所要做的第一件事就是找奶吃。但是母针鼹没有奶头，当小针鼹刺激育儿袋内的皮肤时，奶汁就会从特殊的细孔中分泌出来。五十天之后，当小针鼹长好了脊梁骨，雌针鼹就把幼仔推到体外。五个星期之后，小针鼹便能够独立生活了。

对澳大利亚的介绍上500字以上的求大神的帮助谢谢

澳大利亚的地形很有特色。东部山地，中部平原，西部高原。全国最高峰科修斯科山海拨2230米，在靠海处是狭窄的海滩缓坡，缓斜向西，渐成平原。沿海地区到处是宽阔的沙滩和葱翠的草木，那里的地形千姿百态：在悉尼市西面有蓝山山脉的悬崖峭壁，在布里斯本北面有葛拉思豪斯山脉高大、优美而历经侵蚀的火山颈，而在阿德雷德市西面的南海岸则是一片平坦的原野。澳大利亚的大部分国土，约70%，属于干旱或半干旱地带，中部大部分地区不适合居住。澳大利亚有11个大沙漠，它们约占整个大陆面积的20%。由于降雨量很小，大陆三分之一以上的面积被沙漠覆盖。澳大利亚是世界上最平坦、最干燥的大陆，中部洼地及西部高原均为气候干燥的沙漠，中部的艾尔湖是澳大利亚的最低点，湖面低于海平面16米。

能作畜牧及耕种的土地只有26万平方公里。沿海地带，特别是东南沿海地带，适于居住与耕种。这里丘陵起伏，水源丰富，土地肥沃。除南海岸外，整个沿海地带形成一条环绕大陆的“绿带”，正是这条绿带养育了这个国家。

用英语介绍一下澳大利亚堪培拉悉尼各80字左右介绍一下位

堪培拉 Canberra is the capital of Australia. A total population of 368000 people (368000), in Australia all ranked eighth in the city. With a total area of 2395 square kilometers, more than 50% of the area of national park or reserve, urban design affected by garden city agitation, throw away in the park as the ornament of old ideas, will be directly integrated into the natural vegetation in many important areas, and thus enjoy a ＂natural capital＂ reputation. In Canberra, however, at the beginning of the development of the face to the world war ii and the economic panic, urban development in the decline of the supervision efficiency. After world war ii, under the initiative of prime minister Robert menzies, national capital development committee was established, with executive power, beginning in Canberra in the emerging capital of vigorous development. 悉尼（Sydney） in Sydney, new south wales, Australia's capital, on the verge of the south Pacific, is the largest city in Australia and Oceania and ports, it is also one of the world's most bustling international metropolis. Sydney is Australia's economic, financial, and transportation center, is also the important financial center and shipping center in Asia and the Pacific. Sydney is a major international tourist destination, is famous for Sydney opera house and harbour bridge. Sydney in Australia is very important in the national economy, service industry is the main part of the economy in Sydney, Sydney, about 30% of Australia's gross domestic product. Most of the world famous multinational companies in Sydney has branches or offices. In 2000, successfully held in the 27th summer Olympic Games in Sydney. 悉尼歌剧院 The Sydney opera house in Sydney, Australia, is one of the most distinctive architecture in the 20th century, is the world famous performing arts center, has become a Sydney landmark. Inaugurated in 1973, the opera house on June 28, 2007, the world cultural heritage by UNESCO, and the theater designers for the Danish designer, black pine. The convenience of the Sydney opera house is located in Sydney harbour lang Angle (Bennelong Point), its unique sail shape, plus the Sydney harbour bridge, with the surrounding scenery set each other off becomes an interest.

澳大利亚简介英文版

With an area of eight million square kilometres, Australia is the sixth largest country in the world. The population stands at just twenty million, of whom some 85% live in urban areas, mainly along the coast. Much of Australia is arid and flat. One-third of the country is desert and another third is steppe or semi-desert. Australia's main exports are fossil fuels, minerals, metals, cotton, wool, wine and beef, and its most important trading partners are Japan, China and the US.