同学们有没有觉得动物世界很神奇？ 比如移动方式千姿百态：螃蟹靠爬行，袋鼠则凭着发达的腿部肌肉而蹦跳式行进~

Allysa: You know, Laura, animals move their bodies in different ways. （Allysa: Laura，你知道吗，动物拥有不同的移动方式。） Laura: Then, how does a crab move?
（Laura: 那么，螃蟹是如何移动的呢？） Allysa: A crab crawls.
（Allysa: 螃蟹靠爬行。）
Laura: How do kangaroos move? （Laura: 袋鼠是如何移动的呢？） Allysa: Kangaroos hop.
（Allysa: 袋鼠蹦蹦跳跳地移动。）

延展学习 动物界的 Action Words 知多少？

hop 美 /hɑp/ 蹦跳；搭乘 verb hopping hopped

vt

1. to jump over<hop a fence 越过栅栏>
2. to ride on<hopped a flight 搭乘飞机>; also to ride surreptitiously and without authorization<hop a freight train 火车偷渡> vi
3. to make a quick trip especially by the air<快速行程>
4. to set about doing something —— usually uesd in the phrase: <hop to it 着手做>.

fly 美/flaɪ/ 飞行；驾驶飞机；翱翔 verb flew flown flying

1. to travel by plane <She’s flying back to the States tomorrow. 她明天乘飞机回美国。>
2. if a plane, spacecraft etc flies, it moves through the air <The plane was attacked as it flew over restricted airspace. 飞机在飞越空中禁区时遭到了攻击。>
3. to be at the controls of a plane and direct it as it flies <She was the first woman to fly Concorde. 她是第一位驾驶协和式飞机的女性。>
4. to move through the air using wings <The mother bird will feed her chicks until they are able to fly. 母鸟将喂养小鸟直到它们会飞。>

crawl 美/krɔl/ 爬行 verb crawled crawling

1. if an insect crawls, it moves using its legs <There’s a bug crawling up your leg. 有只小虫子爬到你腿上了。>