关于蓝鲸的英语小短文

关于蓝鲸的英语小短文
关于蓝鲸的英语小短文

关于蓝鲸的英语小短文
蓝鲸是世界上最大的哺乳动物,遍布全球各大洋海域.它身长可达30米左右,体重约170吨,一张嘴就可以开到容10个成年人自由进出的宽度.
蓝鲸背脊呈浅蓝色,肚皮布满褶皱,带有赭石色黄斑.它的尾巴宽阔平扁,能在水中自由灵活地摆动,既是前进的动力,也起着方向舵的作用,时数可达27公里.蓝鲸捕食方式属“吞食型”,主要食物是小虾、水母、硅藻等浮游生物.它常在水面张开血盆大口,把虾和海水一起吞入口中,接着闭嘴滤出海水,把小虾吞进腹内.一头蓝鲸每天要吃约4吨重的小磷虾.
如果它肚中的食物少于2吨,它就回饿得发慌,好像是永远吃不饱似的.所以它经常潜入水深三四十米处,搜寻食物.由于长时间待在水中,每次浮上海面换气时,会从鼻孔内喷射出高达15米左右的水柱,远远望去,宛如一股清泉.蓝鲸的力气很大,大约相当于一台中型火车头的拉力.
蓝鲸在冬季繁殖.母鲸怀胎一年后才生小鲸.刚产下的幼鲸体长就有7.5米左右,重约6吨,经过24小时的喂奶,它的体重就能增加100公斤左右,平均每分钟增加约75克.幼鲸经过7个月的哺乳后,体重可达23吨左右,体长约16米,并开始学着张嘴吞食各种浮游生物.小蓝鲸要到5岁才算成年,它的寿命约为20-30年.
蓝鲸浑身是宝,它的脂肪可制肥皂；鲸肉营养丰富；鲸骨可提炼胶水；鲸肝含有大量的维生素；血和内器官又是优质肥料.因此,蓝鲸屡遭人类的肆意捕杀.现在,蓝鲸的数量正急剧下降,几乎到了濒临毁灭的境地.
蓝鲸 is in the world the biggest mammal,proliferates the global various oceans sea area.Its height may amount to about 30 meters,body weight approximately 170 tons,as soon as opens mouth may open to accommodates 10 adults free turnover the width.
蓝鲸 the back assumes light blue,the belly covers entirely the fold,has 赭石色 the yellow spot.Its tail broad even is flat,can freely nimbly swing in the water,since advance power,also plays the rudder role,时数 may amount to 27 kilometers.蓝鲸 preys on the way to be "swallowing",main food is the small shrimp,the jellyfish,the diatom and so on the plankton.It often opens the big mouth in the water surface,swallows together the shrimp and the sea water in the entrance,then shuts up filters out the sea water,swallows the small shrimp the endo-abdominal.蓝鲸 must eat approximately 4 ton heavy small krill every day.
If in its stomach food is short to 2 tons,it returns is hungry forever feels nervous,looks like is cannot eat to the full resembles.Therefore it frequently dives into the water depth 340 meters place,search food.Because the long time treats in the water,each time floats when the sea level takes a breath,can from the nostril spray reaches as high as 15 meter about water column,looks by far,just like 清泉.蓝鲸 the strength is very big,probably is equal to a Taichung railway engine pulling force.
蓝鲸 in winter reproduction.After the female whale is for pregnant a year only then to live 小鲸.Just gave birth the young whale body long had about 7.5 meters,the heavy approximately 6 tons,passed through 24 hours nursing,its body weight could increase about 100 kilograms,average each minute increase approximately 75 grams.After the young whale passes through 7 month-long nursing,the body weight may amount to about 23 tons,the body long approximately 16 meters,and start to study are opening mouth swallow each kind of plankton.Small 蓝鲸 must calculate grown-up to 5 year old of talent,its life approximately is 20-30 year.
蓝鲸 the whole body is valuable,its fat may make the soap; The whale meat nutrition is rich; The whale bone may refine the glue water; The whale liver includes the massive vitamins; The blood and in the organ also is the high quality fertilizer.Therefore,蓝鲸 repeatedly suffers the humanity recklessly to capture and kill.Now,蓝鲸 the quantity suddenly is dropping,nearly arrived has bordered on the deconstruction the region.

蓝鲸是鳁鲸属七个物种中的一种。但是DNA测序分析表明，蓝鲸比其属中的其它物种在种系上更接近驼背鲸和灰鲸。关于蓝鲸/鳍鲸杂交的成年后代至少有11项文献记载。阿伦逊和格尔伯格(1983年)认为蓝鲸和鳍鲸的差别类似于人类和大猩猩的差别。普遍认为鳁鲸科早在渐新世中期就和须鲸亚目的其他科分离。但是不知何时这些科的成员彼此分离。
The blue whale is the Wen whale spec...

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蓝鲸是鳁鲸属七个物种中的一种。但是DNA测序分析表明，蓝鲸比其属中的其它物种在种系上更接近驼背鲸和灰鲸。关于蓝鲸/鳍鲸杂交的成年后代至少有11项文献记载。阿伦逊和格尔伯格(1983年)认为蓝鲸和鳍鲸的差别类似于人类和大猩猩的差别。普遍认为鳁鲸科早在渐新世中期就和须鲸亚目的其他科分离。但是不知何时这些科的成员彼此分离。
The blue whale is the Wen whale species of one of the seven. But DNA sequencing analysis indicates that the blue whale than its genera of other species in which is closer to the humpback whales and grey whale. About the blue whale/fin whales hybrid offspring of adult at least 11 unusual records. Alan Hudson and riegl sulzberger (1983) think the blue whale and fin whales difference similar to humans and gorillas difference. Generally thought that Wen whale families in early Oligocene middle and whales and purpose other division separation. But I do not know when members of these divisions separated from each other.

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