tadpole

简明释义

英[ˈtædpəʊl]美[ˈtædpoʊl]

n. 蝌蚪

复 数 t a d p o l e s

英英释义

单词用法

同义词

反义词

例句

1.Tadpole 3: Let's go and have a look.

小蝌蚪3：让我们去看一看吧。

2.Small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish.

小的蝌蚪形冷水鱼，长有形成吸盘的腹鳍；与圆鳍鱼科有关。

3.The tadpole produce the sound by pushing air out of their lungs.

这种蝌蚪通过将空气从肺中挤出，来发出声音。

4.A tadpole ultimately turns into a frog.

蝌蚪最后变成青蛙。

5.I love everything about you, said the tadpole.

“我爱你的一切”，蝌蚪说。

6.Look! A tadpole! Let's take it home!

看！有一只蝌蚪！我们把它带回家！

7.My little brother loves to catch tadpoles in the backyard.

我弟弟喜欢在后院抓蝌蚪。

8.The teacher explained how a tadpole develops legs as it matures.

老师解释了蝌蚪在成熟时如何长出腿。

9.After a few weeks, the tadpoles began to change their shape.

几周后，这些蝌蚪开始改变形状。

10.We observed a tadpole turning into a frog during our science project.

在我们的科学项目中，我们观察到一只蝌蚪变成了青蛙。

11.The pond was full of tadpoles, swimming around happily.

池塘里满是蝌蚪，它们快乐地游来游去。

作文

The life cycle of a frog is a fascinating journey that begins with the humble beginnings of a tadpole. A tadpole is the larval stage of a frog, characterized by its aquatic nature and distinct physical features. When frogs lay their eggs in water, the eggs hatch into tadpoles, which are small, typically black or brown, and resemble little fish at first glance.During the early stages of their life, tadpoles are completely aquatic. They have gills for breathing underwater, a long tail for swimming, and no limbs. This stage is crucial as it allows them to grow and develop in a safe environment, away from many predators. The tadpole spends its time swimming around, feeding on algae and other plant materials. As they grow, they undergo a remarkable transformation known as metamorphosis.Metamorphosis is a process that involves significant changes in the tadpole's body. Over time, the tadpole begins to develop legs, starting with the hind legs followed by the front legs. As the legs emerge, the tail gradually shortens, and the tadpole starts to resemble a small frog. During this period, the tadpole also undergoes changes in its respiratory system, transitioning from gills to lungs, which allows it to breathe air.This transformation is not just physical; it also marks a shift in the tadpole's diet and habitat. While tadpoles primarily feed on plant matter, adult frogs are often carnivorous, eating insects and other small animals. As the tadpole matures, it must adapt to its new diet and learn to hunt for food.After several weeks to months, depending on the species and environmental conditions, the tadpole completes its metamorphosis and emerges from the water as a young frog. This stage is critical, as the young frog must find a suitable habitat on land while still being cautious of predators. The transition from water to land is a significant challenge, but it is essential for the frog's survival and reproduction.Understanding the life cycle of a frog, from tadpole to adult, highlights the importance of water ecosystems in supporting biodiversity. Frogs play a vital role in their environments as both predators and prey. They help control insect populations and serve as food for larger animals, contributing to the balance of the food web.In conclusion, the tadpole is a remarkable creature that symbolizes transformation and adaptation. Its journey from a tiny aquatic larva to a fully developed frog illustrates the wonders of nature and the intricate processes involved in the life cycle of amphibians. Observing tadpoles in their natural habitat can be a rewarding experience, reminding us of the delicate connections within ecosystems and the importance of preserving these environments for future generations.

青蛙的生命周期是一个迷人的旅程，始于一只卑微的蝌蚪。蝌蚪是青蛙的幼虫阶段，以其水生特性和独特的身体特征而著称。当青蛙在水中产卵时，卵孵化成蝌蚪，这些小生物通常呈黑色或棕色，乍一看像小鱼。在生命的早期阶段，蝌蚪完全是水生的。它们有鳃用于在水下呼吸，有长尾巴用于游泳，没有四肢。这个阶段至关重要，因为它允许它们在安全的环境中生长和发育，远离许多捕食者。蝌蚪花时间在水中游动，吃藻类和其他植物材料。随着它们的成长，它们经历了一个称为变态的显著变化。变态是一个涉及蝌蚪身体重大变化的过程。随着时间的推移，蝌蚪开始发育腿部，首先是后腿，然后是前腿。随着腿的出现，尾巴逐渐缩短，蝌蚪开始看起来像小青蛙。在这一时期，蝌蚪的呼吸系统也发生变化，从鳃转变为肺，这使它能够呼吸空气。这种转变不仅是身体上的；它还标志着蝌蚪饮食和栖息地的变化。虽然蝌蚪主要以植物为食，但成年青蛙通常是肉食性的，吃昆虫和其他小动物。随着蝌蚪的成熟，它必须适应新的饮食，并学习捕猎。几周到几个月后，具体取决于物种和环境条件，蝌蚪完成变态，作为年轻的青蛙从水中出现。这个阶段至关重要，因为年轻的青蛙必须在陆地上找到合适的栖息地，同时仍然要小心捕食者。从水到陆地的过渡是一个巨大的挑战，但对于青蛙的生存和繁殖至关重要。了解青蛙的生命周期，从蝌蚪到成年，突显了水生态系统在支持生物多样性方面的重要性。青蛙在其环境中扮演着捕食者和猎物的关键角色。它们帮助控制昆虫种群，并作为较大动物的食物，促进食物网的平衡。总之，蝌蚪是一种非凡的生物，象征着转变和适应。它从微小的水生幼虫到完全发育的青蛙的旅程展示了大自然的奇迹以及两栖动物生命周期中复杂的过程。在自然栖息地观察蝌蚪可以是一种令人愉快的体验，提醒我们生态系统内的微妙联系以及保护这些环境以供后代使用的重要性。