fat (脂肪). Do you want to try it?  Why do baby ducks swim in a line?Why do baby ducks swim... makes waves (波浪) behind. Baby ducks follow their mother and swim in the waves. The waves make them ……

. But if they fall out of line, swimming gets harder. Why do baby ducks swim in a line? Because... what we do when we laugh.2. Why do baby ducks swim in a line? They can save __________ this way ……

their mothers in a straight line. Do you know why?Yuan Zhiming, a researcher at the University of Strathclyde in Scotland, may have an answer. He found that baby ducks could save energy (能量) when taking a ride ……

, she leaves waves behind. Following their mother, baby ducks can swim in the waves. Some waves give them a push and make them swim easily. But if they fall out of line, swimming gets harder.They do ……

他的水上游戏让游泳变得更有趣Do you like swimming in the pool? Riley Magnuson, an 11-year-old boy, likes to swim. He also invents1 a game for swimming in the pool: Chuck the Duck. He puts ten yellow plastic2 ducks ……

信不信由你If baby ducks see you when they are born, they will think you are their mom. ……

and the man asks, "do I get three wishes?"The genie says "Sorry, but I only grant one wish. So what... on the behind before coming in and asking for a drink.The bartender serves him and says, "Mind if I ask why ……

in the breeze. Ducks swim happily along the river. All of these are signs that spring has arrived... are swaying in the breeze. Ducks swim happily along the river. All of these are signs that spring has arrived ……

to swim in a pool.Kids in US getpart-time jobs (P5)Answer the questions:9. When do US kids usually go to part-time jobs?__________________________________10. Why do US kids have part-time jobs ……

be in the right place at the right time. QIANTU  Physics prize: why do ducks travel in a line?Physics prize: why do ducks travel in a line?Physics prize: why do ducks travel in a line ……

. They thought a man who couldn’t swim was ignorant (无知的). Well, I can swim a little. I can do the doggy...Find out more about the different swimming events at the Olympics.I love swimming. Do you ……

鸭子妈妈带领的过河小分队。LOOK at the big family of ducks! The mother is taking her 16 babies across the pond (池塘). Six baby ducks sit on their mother’s back and 10 follow close behind. Photographer (摄影师) Mark ……

鸭子舰队的环球航行
子已经是一副饱经风霜的样子。Help in science 科学价值How do these ducks swim around the world? 它们真的会游泳吗？Of course not! 是海... 19,000 ducks swim south. They go to Australia (澳大利亚) and South America (南美洲).3. 1992-1995About 10 ……

are used to make badminton shuttlecocks B. why the numbers of ducks and geese went downB. why the numbers of ducks and geese went downC. why the feathers used to make badminton shuttlecocks ……

I love swimming. Do you?Not really. I can’t swim very well. I don’t like the water.The Ancient... swim a little. I can do the doggy- paddle (狗刨式) but that’s not real swimming, is it?Actually ……