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如果我跟你说老虎 tiger 这个单词和两盒流域中的迪格里斯和 tigress river 是亲戚,你会不会感觉很奇怪呢? tiger 跟 tigress 他们拼写和发音是非常相似的,并不是因为老虎源自于两河流语,是因为 tigress。 他最早记录的是古波斯语表示贱或者 tiger 表示锋利的。这个单词 techrich reva 字面意思就是什么像箭一样湍急的水流对吧?老虎可能因为奔跑速度快或者牙齿锋利等特点被称为了 tiger, 后来被古希腊语和古拉丁所接见,一直流传至今。你看俄语的 dege 还有西巴语的 teeke 都还有这个影子存在对不对?那聊了这么多, tiger 知道他的来源,那母老虎这个单词你会讲吗?其实非常简单的, 英语中有不少单词是可以分男女的,其实也很好去区分。有些单词后面加一二三就可以表示音信。比如说 actor 跟 actress, prince 跟 princess, waiter 跟 reachers, manager 跟 manager is 对吧?那母老虎肯定就是 techris 对吧?除了这些单词以外呢?以后遇到一二三四结尾表明性的含义的,我相信大家都应该可以做到一定的了解。所以你看单词根本不需要去死记硬背的, 能够了解单词的来源,会更加的彻底和轻松的让你去背单词,对吧?现在更多的英语中的偏门部首都把你总结好了。如果见到我在直播,千万不要错过。点击头像进入直播间听专业老师,有点不一样的。

with their signature, orange fur and black stripes tigers have become icons of beauty, power and the importance of conservation tigers have evolved into six sub species the tigers tail of evolution can be traced back to about two million years ago when the earliest known tiger ancestor left africa and ventured into asia over time the big cat split into nine sub species with six still alive today the most numerous subspecies is the bangle tiger accounting for approximately 50 percent of the tiger population worldwide tigers are the world's largest cats on average the big cats weigh about 450 pounds, but the largest is the siberian tiger sub species measuring up to 13 feet long and weighing up to 660 pounds this extra weight is primarily because of large powerful muscles unlike lions the second largest of the big cats tigers have more muscle mass and are therefore heavier tigers have web toes often living near bodies of water tigers have adapted for a semi aquatic lifestyle they appeared to enjoy being in the water unlike most cats and are excellent swimmers using their powerful muscles to propel their bodies in the water they've also evolved to have webbing between their toes the webbing allows the big cats to push around a greater volume of water with each stroke of their paws white tigers are a type of bangle tiger, the classic black and orange coloration of most tigers is caused by the pigments u melanin, which turns for black and fio melanin, which turns for orange the production of fio melanin is triggered by the gene slc 45a2 white tigers carry a mutated version of this gene, which prevents them from producing orange pigmentation fewer than four thousand tigers remain in the wild at the turn of the 20th century, approximately 100 thousand tigers roamed the wild living as far west as turkey and as far north as russia, but due to deforestation human development and poaching their range severely decreased and within 100 years the world's tiger population declined by about 96 percent over the past few decades programs have been put in place to protect tigers and their habitats with the help of the global community tiger populations may slowly rebound。
