国家地理:Picky Frog Mom 挑剔的青蛙妈妈
时间：2018-12-30 作者：英语课 分类：国家地理2007年
英语课
Here in the South American rainforest, you're watching what should be a joyous 1 event, the laying of hundreds of eggs by a mother frog. In truth, only a very few of these eggs will blossom into full frogdom. Drought will take a toll 2, and predators 3 will menace these babies at every step of their development. Some clever moms lay their eggs in trees, foiling the predators below. Take a look at some super close-up micro-camera footage of a frog taking the journey from egg to tadpole 4. Here captured on film is the miracle of life. When the tadpoles 5 outgrow 6 the birth chamber 7, they have to find another source of water fast. Of course, mom took care of everything. She laid her eggs above a jungle pool. Suddenly they are no longer big tadpoles in a self-contained micro-pond. Now they are tiny tadpoles in a huge body of water where their bodies and legs develop quickly. Predators lurk 8 everywhere, like this water bug 9 for instance. It's a simple deadly transaction. It shoots its venom 10 in, then sucks the life out. The survivors 11 like this one will soon lose their tadpole tails and be able to scramble 12 up on land, but they will continue to live in the water where they first high dived into the world and began their astonishing adventure.
adj.充满快乐的；令人高兴的
- The lively dance heightened the joyous atmosphere of the scene.轻快的舞蹈给这场戏渲染了欢乐气氛。
- They conveyed the joyous news to us soon.他们把这一佳音很快地传递给我们。
n.过路(桥)费；损失，伤亡人数；v.敲(钟)
- The hailstone took a heavy toll of the crops in our village last night.昨晚那场冰雹损坏了我们村的庄稼。
- The war took a heavy toll of human life.这次战争夺去了许多人的生命。
n.食肉动物( predator的名词复数 )；奴役他人者（尤指在财务或性关系方面）
- birds and their earthbound predators 鸟和地面上捕食它们的动物
- The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
n.[动]蝌蚪
- As a tadpole changes into a frog,its tail is gradually absorbed.蝌蚪变成蛙，它的尾巴就逐渐被吸收掉。
- It was a tadpole.Now it is a frog.它过去是蝌蚪，现在是一只青蛙。
n.蝌蚪( tadpole的名词复数 )
- The pond teemed with tadpoles. 池子里有很多蝌蚪。 来自《简明英汉词典》
- Both fish and tadpoles have gills. 鱼和蝌蚪都有鳃。 来自《现代汉英综合大词典》
vt.长大得使…不再适用；成长得不再要
- The little girl will outgrow her fear of pet animals.小女孩慢慢长大后就不会在怕宠物了。
- Children who walk in their sleep usually outgrow the habit.梦游的孩子通常在长大后这个习惯自然消失。
n.房间，寝室；会议厅；议院；会所
- For many,the dentist's surgery remains a torture chamber.对许多人来说，牙医的治疗室一直是间受刑室。
- The chamber was ablaze with light.会议厅里灯火辉煌。
n.潜伏，潜行；v.潜藏，潜伏，埋伏
- Dangers lurk in the path of wilderness.在这条荒野的小路上隐伏着危险。
- He thought he saw someone lurking above the chamber during the address.他觉得自己看见有人在演讲时潜藏在会议厅顶上。
n.虫子；故障；窃听器；vt.纠缠；装窃听器
- There is a bug in the system.系统出了故障。
- The bird caught a bug on the fly.那鸟在飞行中捉住了一只昆虫。
n.毒液，恶毒，痛恨
- The snake injects the venom immediately after biting its prey.毒蛇咬住猎物之后马上注入毒液。
- In fact,some components of the venom may benefit human health.事实上，毒液的某些成分可能有益于人类健康。
幸存者，残存者，生还者( survivor的名词复数 )
- The survivors were adrift in a lifeboat for six days. 幸存者在救生艇上漂流了六天。
- survivors clinging to a raft 紧紧抓住救生筏的幸存者