青蛙是怎么生长的英语作文
⑴ 小蝌蚪变成青蛙的英语作文
The tadpoles will first grow slowly, the process will graally show hind legs, tail will graally become shorter, and then will graally grow two front legs, the volume is also larger, and finally the tail disappeared completely grow into frogs
⑵ 英语作文青蛙的周期变化50字
先开始我不懂该怎样饲养蝌蚪,就用自来水养它们,但是过了两天就发现有些蝌蚪出现了翻肚子的情况,陆陆续续地又有几只蝌蚪变成这样。于是我请教了妈妈,妈妈告诉我不要用自来水饲养蝌蚪,应该去一些有水藻的池塘里捞一些水回来饲养,也去池塘里挖一些长在池塘边上的水藻放在水里,因为那些水里面有微生物和水藻,水藻可以进行光合作用,可以为蝌蚪提供氧气,微生物则可以给蝌蚪提供食物。
我想到了宝姐姐家里有一个鱼缸,里面养了两条鱼,水是微微泛青的,于是我按妈妈说的去做在里面捞了一些水回去给蝌蚪换上,第二天蝌蚪都不再翻肚子。过了一个星期左右,有两只蝌蚪长了两条后腿,先开始我还以为是它的排泄物,后来慢慢的长长了,我才知道那是它的后脚 。我发现有只蝌蚪的肚子上面一些的地方长了两只小脚,是它的前脚!但是因为时间有限,我不能把照片发上来,虽然它长了前脚,但是尾巴还是挺长的,可能还要一段时间才能慢慢变短。
我原来是挺怕蝌蚪的,可是养了这么久也觉得蝌蚪还是很可爱的。毕竟它们是青蛙的幼体,它们长大之后都是要吃害虫的。
I don't know how to start feeding tadpoles, raising them with tap water, but after two days they found some tadpoles through the stomach, one after another and a few tadpole like this. So I asked my mother, my mother told me not to raise tadpoles with tap water, should go to some algae pond fishing some water back to the pond feeding, digging some long in the pond on the algae in the water, because the water there is bacteria and algae, algae can carry out photosynthesis, can provide oxygen as a tadpole, microorganisms can provide food for tadpoles.
I think there is an aquarium Bao sister home, which raised two fish, the water is slightly green, so I as mom said to do some fishing in water back to second days for tadpoles, tadpoles are no longer turned belly. After about a week, there are two tadpoles long two legs, at first I thought it is excrement, then slowly long, I only know that it is the foot. I found a tadpole belly above some place two feet long, it is! But because of the limited time, I can't take photos, although it is a long tail or front, but for a long time, it may take some time to get shorter.
I was very afraid of the original tadpoles, but raised for so long also think that tadpoles are still very cute. After all, they are the larvae of the frog, they grow up to eat the insects.
⑶ 保护动物的英语作文。
Children, you grabbed the small tadpoles right, you must know that tadpole grew up to become small frog, the frog can eat insects, so the frog is our human's good friends. We should protect it, not hurt it. But some hotels are also sold the frog meat? Once, dad and his friends took me to dinner. A waiter said: "you see, this is we store the launch of new specials, stir flogs ball". "Chicken is what ah?" I curiously ask, "chicken is the frog." The waiter said, with a smile. I was very angry, because they hurt our good friends-frog! Another thing, he makes a big inspiration. One day, when I finish school, saw a man at the school gate at little chicks must sell, and I will have mercy on them. Because the little chicks must first came to this world, away from the mother, away from the mother love and mother warm embrace, and this is what they faced starved to death, the risk of freezing to death. At that time I thought: we humans are so happy! When you see here, did you see to protect our human friends-animals!小朋友,你们抓过小蝌蚪吧,你们一定知道蝌蚪长大要变成小青蛙,青蛙可以吃害虫,所以青蛙是我们人类的好朋友。我们应该保护它,而不是伤害它。可是有些饭店还卖青蛙肉呢。有一次,爸爸和他的朋友带着我去吃饭。一位服务员过来说:“您看,这是我们店新推出的特色菜,爆炒田鸡球”。“田鸡是什么呀?”我好奇地问,“田鸡是青蛙。”服务员笑着说道。我当时很气愤,因为他们伤害了我们的好朋友——青蛙!还有一件事,他对我有很大的启发。一天,我放学的时候,看见一个人在学校门口卖小鸡仔,我好可怜它们。因为小鸡仔刚来到这个世界上,就远离了妈妈,远离了母爱和妈妈温暖的怀抱,这也使它们面临着饿死、冻死的危险。当时我想到了:我们人类是多么幸福啊!当你看到这里时,你是不是明白了要保护我们人类的朋友——动物呀!
⑷ 英文表达 青蛙的生命周期
The life cycle of a frog
1.The Egg
Frogs lay their eggs in water or wet places. A floating clump of eggs is called frog spawn.
The large and slippery mass of eggs are too big to be eaten. This is nature's way of protecting them. But, the smaller clumps of eggs will be eaten by the creatures living near or in the pond.
The egg begins as a single cell. Several thousand are sometimes laid at once. It becomes surrounded by a jellylike covering, which protects the egg. The female may or may not stay with the eggs to take care of the young after she has laid them. The egg slowly develops. But, only a few develop into alts. Ducks, fish, insects, and other water creatures eat the eggs.
2.The Cell Splits
The single cell in the egg eventually splits into two. These two split making four cells, and so on. Eventually, there are many cells in the egg.
3.The Embryo
The mass of cells in the egg come to form an embryo. Organs and gills begin to form, and in the meantime, the embryo lives off of its internal yolk. This supplies it with nutrients for 21 days. Then . . .
4.The Tadpole
After its 21 day development period, the embryo leaves its jelly shell, and attaches itself to a weed in the water. This quickly becomes a tadpole, a baby frog. The tadpoles grow until they are big enough to break free into the water. This can take from 3 days to 3 weeks, depending on what kind of frog they will become. They eat very small plants that stick to larger plants in the water. These tiny plants are called algae. The tadpole has a long tail, and lives in the water. It is extremely vulnerable, and must rely on its camouflage to protect it.
The tadpole has a long tail, and lives in the water. It is extremely vulnerable, and must rely on its camouflage to protect it. The tadpoles also face danger by being eaten by other water animals. Sometimes the pond dries up. As a result the tadpoles die.
5.The Tadpole Begins To Change
After about five weeks, the tadpole begins to change. It starts to grow hind legs, which are soon followed with forelegs. Behind their heads bulges appear where their front legs are growing. Their tails become smaller. Lungs begin to develop, preparing the frog for its life on land. Now and then, they wiggle to the surface to breathe in air. The tail becomes larger and makes it now possible for the tadpole to swim around and catch food. They eat plants and decaying animal matter. Some tadpoles eat frogs eggs and other tadpoles.
Almost There . . .
Over time, the tadpole becomes even more froglike. They have shed their skin and lips. Its mouth widens, and it loses its horny jaws. The tail becomes much smaller, and the legs grow. The lungs are almost functioning at this point.
6.The Frog
Eleven weeks after the egg was laid, a fully developed frog with lungs, legs, and no tail emerges from the water. This frog will live mostly on land, with occasional swims. The tiny frogs begin to eat insects and worms. Eventually, it will find a mate. The way this is done varies depending on the species. The female lays the eggs, the male fertilizes them, and the whole process begins again.
⑸ 英语作文青蛙的叫声
Frogs grow in five stages. First is the egg stage. The eggs are laid in wet places in slippery masses that hopefully don’t get slurped up by other hungry animals. The eggs are called a “ spawn.” There the single cells divide for the next 20 days. And hopefully some survive to get to the next stage. The eggs feed on the little yolk sac inside.
At 21days, the eggs become tadpoles. They break out of their jelly egg homes and live in the weeds until they can swim. They eat algae and grow until their swimmy tails grow big enough to swim around.
⑹ 关于青蛙生长过程的英语作文
Frogs grow in five stages. First is the egg stage. The eggs are laid in wet places in slippery masses that hopefully don’ get slurped up by other hungry animals. The eggs are called a “frog spawn.” There the single cells divide for the next 20 days. And hopefully some survive to get to the next stage. The eggs feed on the little yolk sac inside.
At 21days, the eggs become tadpoles. They break out of their jelly egg homes and live in the weeds until they can swim. They eat algae and grow until their swimmy tails grow big enough to swim around.
After about five weeks the tadpole begins to grow legs, starting with the back legs, which is the third stage. In the fourth stage bulges grow behind their head and that’s where their front legs will grow. Their tails shrink. Their lungs grow so they can live on land. It’s almost a frog now.
The tadpole grows and grows to look more like a frog, shedding its lips and skin. Eleven weeks after it was one little cell, it is fully grown. Gone are the tail and the horny jaws. It can swim and live on land. It now can eat worms and bugs. When it grows to be a big frog it will find a mate and the whole process will begin again.
⑺ 介绍一种小动物的成长过程的英语作文
Last spring, my mother and I go to climb the mountain, we came to the hill, saw
a small pond, there are a lot of little tadpole, mom and I caught it catch,
finally caught!
After returning home, I put the tadpoles fall into my
small fish tank, I have put some soil in the pelvic floor, put some water in the
water in the water. At the moment, the little tadpoles are hungry, wanted to
think, I put some cooked rice and cooked egg yolk, watching them eat like wolves
and tigers eat, I can be happy!
Good times don't last long, I have not
long, because of my carelessness, tadpole not long legs, but also died a few, it
makes me sad for a long time, so, I was more careful to take care of the rest of
the tadpoles. , in the care of me, not long after, the tadpoles grow back, I
have more confidence!
Pays off, after several weeks, the small tadpole
forelegs are out, I was hardly music. Slowly, their tails graally reced, the
original fat thin body also has a lot of. One day, I wake up in the morning is
unable to hold oneself back to have a look the tadpoles, huh? Why do I not see?
Oh. They grow up, do not want to stay in water, are climbing the wall! I put the
water away, they're jumping around in the bottom, is a very lovely!
Look
at me personally a little frog, I feel very happy, have a strong sense of
achievement, this kind of feeling!
去年春天,我和妈妈去爬山,我们来到了山上,看见一个小池塘,里面有好多只小蝌蚪,妈妈与我抓呀抓,终于抓到了!
回家后,我便把蝌蚪们倒进了我的小鱼缸里,我特地在盆底撒了一些泥土,还在水中水中放了一些水草。这会儿,小蝌蚪们肯定饿了,想了想,我就放了一些熟米和熟鸡蛋黄,看它们狼吞虎咽的吃着,我可高兴了!
好景不长,我养了没多久,由于我的粗心,小蝌蚪不但没有长出腿,反倒还死了几只,这令我伤心了好久,于是,我更加细心地照料剩下的蝌蚪。,在我的细心照料下,没过多久,小蝌蚪就长出了后腿,我更加有信心了!
皇天不负有心人,几周后,小蝌蚪的前腿也长出来了,我乐得合不拢嘴。慢慢地,它们的尾巴渐渐的缩短了,原来胖胖的身体也瘦了很多。一天,我早上起床后就迫不及待的去看看小蝌蚪,恩?怎么不见了?哦!原来它们长大了,不想在水里呆,都爬到缸壁上了呢!我就把水倒掉了,它们在缸底跳来跳去,真是可爱极了!
看着我亲手养的小青蛙,我心里无比的高兴,有一种强烈的成就感,这种感觉好极了!
希望对你有所帮助。
