保护牙齿英语作文【一】
这学期我们抓了蜗牛观察，蜗牛很小就看到一个壳还有软软的身体。它喜欢吃青菜，我把它放到青菜叶上，过一会儿去看它，青菜叶少了一个小角。我产生了疑问：蜗牛和我们一样有牙齿吗？如果有，它的牙齿在哪里呢？如果没有，它又是怎么吃叶子的呢？
我仔细观察蜗牛吃叶子的样子，感觉蜗牛就是吞着吃下去的，没有牙齿。妈妈告诉我：“蜗牛本身就是没有牙齿。”我听完妈妈说的话，半信半疑。
后来，我到网上查了一下，原来蜗牛是有牙齿的，但是我们看不见。它的牙齿小得不能再小了。蜗牛不仅有牙齿，而且有成千上万颗。它的牙齿都在舌头上，上面长着无数细小而整齐的角质牙齿，因此它们的牙齿可以达到一万颗以上。所以，蜗牛是世界上牙齿最多的动物。
说到蜗牛的牙齿最多，那它到底有多少颗呢？它的嘴巴大小和针尖差不多，但是它的牙齿有两万五千六百颗牙齿。啊，蜗牛的牙齿真是数量惊人呀！想不到，一张小小的嘴巴，却有这么多的牙齿，我真是不敢相信啊！
我终于知道了一只蜗牛一共有两万五千六百颗牙齿，真是数量惊人啊！
保护牙齿英语作文【二】
Giant Panda is our national treasure, the state can be said for the protection of giant pandas put a lot of human and material resources giant now has been the world's people the protection and care, which is a good thing, of course, the Tibetan antelope as the country's animal protection , The National People have been recognized, however, this tiger? The poor will be extinct Siberian tiger who is going to have a genuine concern and care a little bit?
According to statistics, the Siberian tiger left at present, less than 20, still such a small number of these survive, has had imagined. Two years ago, in the mountains of Huanren, Liaoning found to be a man to die under the presentation of the Siberian tiger, from this we can see that the above countries and the people of the importance we attach to it, this first Manchurian tiger is actually how the dead do not Conclusion, and the other is only from the northeast where hu came to the place where the wonder and the third is the matter did not rise to the national media in particular. This really puzzled the other person you! Is it really the other tiger who fear love is not worth it, it really fate of the Siberian tiger so?
Towering mountains should not unique to human beings, should not have dense forest unique to human beings, rivers clear this should not be unique to human beings, the Siberian tiger survival of this nature should not be unique to human beings. Siberian tiger to the left of a piece of heaven and earth to survive it, the High IQ is the human species, there are still ways to leave that piece of local survival, and the tiger have to leave that piece of the local dead; you save tigers, is the human population control, engage in Family planning, and the Siberian tiger is scarce Rending it! Now we can hear the cries of tigers in the future even the Siberian tiger can be heard the cries.
保护牙齿英语作文【三】
A tiger is a kind of catamount animal. It looks like a cat, but much bigger than a cat. A tiger is very ferocious and it eats mainly meat. It has yellow and black streaks all over its body and it looks very beautiful. Its tail is long and strong and it can hit its quarry dying.
Tigers live in the thick forests and small animals in the forests are tigers' food.
During the past years, many forests have been cut down and the living conditions of the tigers are becoming worse and worse. There are fewer tigers left in the world now. Tigers are the animals of the world, and they should have their own living spaces. We must do our best to protect the tigers and their living environment.
