A flea (跳蚤) can jump up to 30cm. That's about 20 times its own body length (长度). ……

they see their friends, cats raise (抬高) their tails.When dogs jump up with their front paws (爪), it means that they want to play with you. But when cats jump up with their paws, it means ……

wants to eat! It jumps up and sits on the girl’s arms to eat. Squirrels can jump up to 6 meters when ……

and there. Sometimes they jump up and down. I think they like their house. I feed them every morning ……

and bad news. The good news is that we will not have an exam next week!” We jump up.... The good news is that we will not have an exam next week!” We jump up and burst (爆发 ……

). It is over 100 years old. A bridge can jump up and down. Do you believe it? This bridge over the Elbe (易北河) can do that! Cars and trains run on it. When it moves up, boats can pass under the bridge. People ……

跳高第一名还不用喝水的跳囊鼠！Meet the kangaroo rat (跳囊鼠). They live in North America. They are very good at jumping. The rat has largeback legs, just like a kangaroo. They can jump up to 2.75 meters in the air ……

. The length of their tail (尾巴) is about 20 to 40 cm. They can jump up to 6 meters between trees.Most squirrels ……

. These rabbits look very cute. We give them some lettuce to eat. The rabbits jump up happily. We jump up... them some lettuce to eat. The rabbits jump up happily. We jump up happily, too. What a happy holiday ……

mouth.Put it into my mouth.I chew and chew.I chew and chew.Yummy! Yummy! I jump up. I jump up. Oh, the candy is for Halloween!Oh, the candy is for Halloween!The bag of candy swings ……

people are also good at jumping. They can jump up to one meter vertically (垂直地). The Maasai people are also good at jumping. They can jump up to one meter vertically (垂直地).   Word ……

legs, just like a kangaroo. It can use its legs to jump up to 2.75 meters in the air. That is 34 times higher than its body length (长度)! No other mammal (哺乳动物) can jump that much higher than its own ……

jump up to 60 cm in the air! We do so to let the females (雌性) see us or to protect our territory (领地).We can jump up to 60 cm in the air! We do so to let the females (雌性) see us or to protect our ……

to jump up and down to warm up. Hurry up, spring! ……

to another. I can jump up to 30 times my own height (身高).A flea lays5 as many as 2,000 eggs (卵) in a lifetime... fly. I can fly up to 16m in one second (秒).Fastest runner 跑步健将I’m a cockroach (蟑螂). I can run up ……