⑴ 点读笔哪个牌子的好,启智星的怎么样
买点读笔要看两方面,一是笔的质量,包括硬件构造和音质等,通过看和听就能判断出来;二是书,没有书,点读笔就是块废塑料,所以选书也是家长要考虑的内容。启智星的还不错,音质,书都还可以。
⑵ 2006年袋鼠金币澳大利亚为什么把袋鼠作为金币徽章
象征性就和央行发行的熊猫金币一样
⑶ 普通袋鼠和红袋鼠的区别。。。急急急!!!今晚就要。。
袋鼠(kangaroo)原产于澳大利亚大陆和巴布亚新几内亚的部分地区。其中,有些种类为澳大利亚独有。所有澳大利亚袋鼠,动物园和野生动物园里的除外,都在野地里生活。不同种类的袋鼠在澳大利亚各种不同的自然环境中生活,从凉性气候的雨林和沙漠平原到热带地区。
袋鼠是食草动物,吃多种植物,有的还吃真菌类。它们大多在夜间活动,但也有些在清晨或傍晚活动。不同种类的袋鼠在各种不同的自然环境中生活。比如,波多罗伊德袋鼠会给自己做巢而树袋鼠则生活在树丛中。大种袋鼠喜欢以树、洞穴和岩石裂缝作为遮蔽物。
所有袋鼠,不管体积多大,有一个共同点:长着长脚的后腿强键而有力。袋鼠以跳代跑,最高可跳到4米,最远可跳至13米,可以说是跳得最高最远的哺乳动物。大多数袋鼠在地面生活,从它们强健的后腿跳越的方式很容易便能将其与其他动物区分开来。袋鼠在跳跃过程中用尾巴进行平衡,当它们缓慢走动时,尾巴则可作为第五条腿。
所有雌性袋鼠都长有前开的育儿袋,育儿袋里有四个乳头。“幼崽”或小袋鼠就在育儿袋里被抚养长大,直到它们能在外部世界生存。
袋鼠属有袋鼠为袋鼠科,结指鼠儿亚目,袋鼠目,有带类,哺乳动物纲,脊索动物门,动物界,它们是澳大利亚著名的哺乳动物,在澳洲占有很重要的生态地位。袋鼠前肢短小,后肢特别发达,常常以前肢举起,后肢坐地,以跳代跑。袋鼠一般身高有2.6米,体重约有80公斤。
袋鼠图常作为澳大利亚国家的标识,如绿色三角形袋鼠用来代表澳大利亚制造。袋鼠图还经常出现在澳大利亚公路上,那是表示附近常有袋鼠出现,特别是夜间行车要注意,袋鼠的视力很差,加上对灯光的好奇会跳去“看个究竟”。但因为袋鼠的繁殖率高所以即使不小心撞死了也不需要负责,会有专门的人把袋鼠的尸体收走。
袋鼠通常以群居为主,有时可多达上百只。但也有些较小品质的袋鼠如wallabies会单独生活。
袋鼠不会行走,只会跳跃,或在前脚和后腿的帮助下奔跳前行。袋鼠属夜间生活的动物,通常在太阳下山后几个小时才出来寻食,而在太阳出来后不久就回巢。
袋鼠每年生殖一至二次,小袋鼠在受精 30-40 天左右既出生,非常微小,无视力,少毛,生下后立即存放在袋鼠妈妈的保育袋内。直到 6-7 个月才开始短时间地离开保育袋学习生活。一年后才能正式断奶,离开保育袋,但仍活动在妈妈袋鼠附近,随时获取帮助和保护。袋鼠妈妈可同时拥有一在袋外的小袋鼠,一在袋内的小袋鼠和一待产的小袋鼠.
红袋鼠
最著名的袋鼠是红袋鼠,其体型最大,生活在澳大利亚干燥地带,其地带的年平均降雨量在 500毫米以下。由于袋鼠的食物含大量水分,所以他在没有活水的地区也能生存。红袋鼠实际上只有公袋鼠是红色的,母袋鼠为灰蓝色。
红袋鼠又名大赤袋鼠。这类袋鼠是袋鼠科中体型最大的一种,产于澳大利亚及其附近岛屿,是澳大利亚的特产动物之一。红袋鼠其实只有雄性体色是红色或红棕色,其雌性体色都呈蓝灰色。袋鼠前肢短小,后脚长而有力,行进时,完全以后脚来跳,大尾巴则保持平衡。它们善于跳跃,能跳7—8米远,1.5—1.8米高。如果它们去参加奥运会,一定能拿到“双跳冠军”。大袋鼠喜欢搞“小团体”,往往是结小群生活于草原地带,活蹦乱跳地在夜间觅食各种草类、野菜等。它们一般1.5—2岁成熟,寿命20—22年,被列入濒危野生动植物国际公约附录上。红袋鼠全年均可繁殖,经过艰苦的“十月怀胎”—袋鼠的孕期为343天,一般产下一仔。当袋鼠妈妈快生小宝宝时,便忙着口袋,用舌头把里面的脏东西舔干净。
袋鼠家族中“种族歧视”十分严重,它们对外族成员进入家族不能容忍,甚至本家族成员在长期外出后再回来也是不受欢迎的。家族即使接受新成员,也要教训一番,直到新成员学会许多“规矩”后,才能和家族融为一体。
生活于澳大利亚东南部开阔的草原地带的大赤袋鼠是最大的有袋动物,也是袋鼠类的代表种类,堪称现代有袋类动物之王。
大赤袋鼠的形体似老鼠,仿佛一只特大的巨鼠。其实,它与老鼠并没有什么亲缘关系。它的体毛呈赤褐色,体长130—150厘米,尾长120—130厘米,体重70—90千克。头小,颜面部较长,鼻孔两侧有黑色须痕。眼大。耳长。相貌奇特,惹人喜爱。它们的头小,耳大,眼睛也很大。适应于跳跃的生活方式,前肢短小而瘦弱,可以用来搂取食物,后肢强大,趾有合并现象,一步可跳5米远,时速可达40—65公里。尾长大,为栖息时的支撑器官和跳跃时的平衡器。
大赤袋鼠多在早晨和黄昏活动,白天隐藏在草窝中或浅洞中。喜欢集成20~30只或50~60只群体活动,以草类等植物性食物为主。它胆小而机警,视觉、听觉、嗅觉都很灵敏。稍有声响,它那对长长的大耳朵就能听到,于是便溜之大吉了。
⑷ 澳大利亚黄袋鼠和红袋鼠红酒的区别
都是同一个瓶塞同一个系列下面不同的酿酒品种区别,黄色是设拉子葡萄酿制,红袋鼠是赤霞珠葡萄,还有个橙色是梅洛葡萄。前两者口感比较浓郁,后者比较清淡些。
⑸ 澳洲政府徽章,一个是袋鼠,另一个动物是什么
鸸鹋
鸸鹋(学名:Dromaius novaehollandia)是鸟纲鸸鹋科唯一的物种,以擅长奔跑而著名,是澳洲地区的特产,是世界上第二大的鸟类,体型仅次于非洲鸵鸟,因此也被称作澳洲鸵鸟,也被称作尤加利鸟,翅膀比非洲鸵鸟和美洲鸵鸟的更加退化,足三趾,是世界上最古老的鸟种之一。盛通海外竭诚为您服务
⑹ 澳大利亚足协徽章的2个动物除了袋鼠还有什么
足协的徽章?
澳大利亚国国会上有袋鼠和鸸鹋
鸸鹋又叫做澳洲鸵鸟 食火鸟
足协的徽章上应该有国徽吧 左边是袋鼠 右边是鸵鸟
澳洲还有一种著名的鸟 叫几维 是新西兰的国鸟
⑺ 关于考拉和红袋鼠的英语资料
考拉:
What is a koala?
The koala is a small bear-like, tree-dwelling, herbivorous marsupial which averages about 9kg (20lb) in weight. Its fur is thick and usually ash grey with a tinge of brown in places.
The koala gets its name from an ancient Aboriginal word meaning "no drink" because it receives over 90% of its hydration from the Eucalyptus leaves (also known as gum leaves) it eats, and only drinks when ill or times when there is not enough moisture in the leaves. ie ring droughts etc.
The koala is the only mammal, other than the Greater Glider and Ringtail Possum, which can survive on a diet of eucalyptus leaves.
Habitat & Diet
'Habitat' refers to the types of bushland that koalas like to live in. They are found in a range of habitats, from coastal islands and tall eucalypt forests to low woodlands inland.
Koalas today are found in Queensland , New South Wales , Victoria and South Australia . Their range extends from the Atherton Tableland west of Cairns in Qld to islands off the coast of Victoria and South Australia in the south, and west to central and western Qld, NSW and Victoria.
Koalas live in societies, just like humans, so they need to be able to come into contact with other koalas. It is because of this they need to have areas of suitable eucalypt forest which are large enough to support a healthy koala population and to allow for expansion by maturing young koalas. Koalas are highly territorial and in stable breeding groups, indivial members of koala society maintain their own "home range" areas.
A 戚ome range� consists of a number of 戚ome range trees� and 慺ood trees� which comprise the long-term territory of the indivial koala. These trees provide the koala with food, shelter and places for social contact which will support it for the term of its natural life (assuming there is no habitat clearing).
A home range varies in size depending on the habitat quality of bushland. Habitat quality can be measured in terms of the density of key food trees. "Home range trees" define the boundaries of the indivial koala抯 home range and can be likened to surveyors pegs marking the extent of a property. They are not always apparent to the human eye, but koalas can tell whether a tree 慴elongs� to another koala or not. Within a socially stable group, the home ranges of indivial koalas overlap with those of their neighbours. It is in the shared, overlapping trees that the majority of social interaction takes place. These are very important trees.
Koala populations only occur if suitable habitat is available and because Koala's are very fussy eaters and have strong preferences for different types of gumleaves, then the most important factor which make habitats suitable are the presence of tree species preferred by koalas (usually eucalypts, but also some non-eucalypts) growing in particular associations on suitable soils with adequate rainfall.
Research has shown that socially stable koala populations occur only when there are favourite tree species present. Even if a selection of tree species known to be used by koalas occurs within an area, the koala population will not use it unless one or two favourite species are available.
In Australia there are over 600 types of eucalypts, but koalas will only eat 40-50 varieties with only about 10 being preferred. Within a particular area, as few as one, and generally no more than two or three species of eucalypt will be regularly browsed while a variety of other species, including some non-eucalypts, appear to be browsed occasionally or used for just sitting or sleeping in.
Different species of eucalypts grow in different parts of Australia, so a koala in Victoria would have a very different diet from one in Queensland. Koalas like a change, too, and sometimes they will eat from other trees such as wattle or tea tree.
Eucalyptus leaves are very fibrous and low in nutrition, and to most animals are extremely poisonous. To cope with such a diet, nature has equipped koalas with specialised adaptations. A very slow metabolic rate allows koalas to retain food within their digestive system for a relatively long period of time, maximising the amount of energy able to be extracted. At the same time, this slow metabolic rate minimises energy requirements and they will sleep for up to 18 hours per day in order to conserve energy.
Each koala eats approximately 200 to 500 grams of leaves per day. The teeth are adapted to deal with for this. The sharp front incisors nip the leaves from the branches and the molars(back teeth) are shaped to allow the koala to cut and shear the leaves rather than just crush them. A gap between the incisors and the molars, called a 'diastema', allows the tongue to move the mass of leaves around the mouth efficiently.
红袋鼠
The red kangaroo is the world's largest marsupial. Females have one baby at a time, which at birth is smaller than a cherry. The infant immediately climbs into its mother's pouch and does not emerge for two months. Until they reach about eight months of age, threatened young kangaroos, called joeys, will quickly dive for the safety of mom's pouch. As they grow, joeys' heads and feet can often be seen hanging out of the pouch.
Red kangaroos hop along on their powerful hind legs and do so at great speed. A red kangaroo can reach speeds of over 35 miles (56 kilometers) an hour. Their bounding gait allows them to cover 25 feet (8 meters) in a single leap and to jump 6 feet (1.8 meters) high.
Female red kangaroos are smaller, lighter, and faster than males. They also boast a blue-hued coat, so many Australians call them "blue fliers."
Larger male kangaroos are powerfully built. Like many species, male kangaroos sometimes fight over potential mates. They often lean back on their sturdy tail and "box" each other with their strong hind legs. Kangaroos can also bite and wield sharp claws, which they may do in battle with an enemy like a dingo.
Red kangaroos live in Australia's deserts and open grasslands, gathering in groups called mobs. Aboriginal and European Australians have spent centuries clearing open tracts of land and establishing water sources—both of which are boons to kangaroo populations. Many millions of these animals roam Australia, and considerable numbers are killed each year for their skins and meat, which is becoming a more popular human food.
⑻ (绘本)笨笨熊和红袋鼠的魔力电话 怎么写教案
(一)导入新课
(二)讲授新课
(三)课堂小结
(四)随堂练习
(五)课后作业布置
(六)板书设计
⑼ 袋鼠的种类分几种分别是
分5种,分别为红袋鼠、大赤袋鼠、东部灰大袋鼠、西部灰大袋鼠、麝香袋鼠
1、红袋鼠
红袋鼠,广泛分布在澳洲大陆,栖息在澳洲中部的干旱内陆,以及较少树生长的辽阔平原。
2、大赤袋鼠
生活于澳大利亚东南部开阔的草原地带的大赤袋鼠是最大的有袋动物,也是袋鼠类的代表种类,堪称现代有袋类动物之王。
3、东部灰大袋鼠
是澳大利亚南部及东部的袋鼠,东部灰大袋鼠可以移动得很快,最高纪录达每小时64公里。
4、西部灰袋鼠
西部灰袋鼠,生活在开阔的林地、荒原和草场,黄昏至清晨活动觅食,以草、树叶、树皮和灌木为食,对于某些植物毒素它具有较高的耐受性。
5、麝袋鼠
麝袋鼠,是哺乳纲下双门齿目下的单科种,仅在近年才将其置放在目前的一个科内,麝袋鼠科,并与远古时代的其他麝袋鼠共用此科。
⑽ 和红袋鼠体型相似的动物
是袋鼠科、大袋鼠属动物。红袋鼠是世界上最大的有袋类动物。红袋鼠体长100-160厘米,尾长75-120厘米,体重23-70千克。雄性体长130-160厘米,体重70-90千克,雌性则小得多。红袋鼠体色呈红色或红棕色,因而得名。但雌性体色呈蓝灰色,鼻孔两侧有黑色须痕,这是红袋鼠独具的特征。
红袋鼠栖息在热带的稀树草原、荒漠和温带的森林中。非常善于跳跃,在缓慢行进时,每一跳约1.2-1.9米,但在奔跑时每一眺可达9米以上。短期的逃跑速度可达每小时50-64千米。生性胆小,机警,常于夜间或清晨活动,日间多睡觉或以其他方式休息。广泛分布于澳大利亚(除了北部、东海岸和西海岸)。
红袋鼠栖息在热带的稀树草原、荒漠和温带的森林中。红袋鼠和羚袋鼠一样,喜欢群栖,常以2-10只为一个社群单元,有时也结成上百只的大群;在草原地带集成小群一起生活。非常善于跳跃,在缓慢行进时,每一跳约1.2-1.9米,但在奔跑时每一眺可达9米以上。短期的逃跑速度可达每小时50-64千米。生性胆小,机警,常于夜间或清晨活动,日间多睡觉或以其他方式休息。一般在清晨和傍晚天气凉爽时外出觅食饮水,白天炎热时成群在树阴下休息。休息、时总有一只袋鼠放哨,一发现稍有危险征兆,立即发出警报。受惊时会发出大声的咳嗽声,并用后足猛击地发出声来,而后会一下子跑出几公里才停下。主要在夜间觅食,食物为各种草类、野菜、树叶等。[5][7][8][6][9]
红袋鼠平时比较安静,也比较温顺,但在无退路时也会用后足猛踢人,它的后足强有力,一下子就可以使人致命。雄性在争胜打架时动作如同人在拳击。[9]红袋鼠的尾部在其跳跃时起平衡作用;当遇到敌害走投无路时,尾巴的抽击能造成致命伤;在慢行和休息时尾巴又可作为第三肢,与后胺形成天然的椅子。