人的科学启蒙。Why is there a rainbow (彩虹) in the sky? Why do leaves fall in autumn? We all have lots...》). Why is there a rainbow (彩虹) in the sky? Why do leaves fall in autumn? We all have lots ……

  城市里的秋城市里的秋Why do so many people like autumn? Maybe it’s because of the pleasant..., they look bright and fresh. When the leaves fall, the roads become colorful. It looks like someone knocked ……

, the “flowers” fall off the trees when winter comes. Why is that? A leaf’s job... every leaf is a flower.” However, the “flowers” fall off the trees when winter ……

气地). Three days went by. The star was getting no calls, and wondered why. So she checked with the desk ……

. Soft white bits of frozen (冻冰的) water can also fall. These are __________ .Answers:1. temperature 2. wind 3. ice 4. frost 5. hail 6. snowflakesFind lots more fun things to do atwww.britishcouncil.org ……

do this. Leaves do this. People do this when they put on different clothes. 2. Seasons do this. Leaves do this. People do this when they put on different clothes. They _____________ ……

科学泡泡堂Why do koalas sleep so much?为什么考拉那么爱睡觉？Koalas only eat tree leaves. Those leaves have a small amount of energy (能量). Koalas need to sleep a lot to save energy. ……

在法雅节里等待春天在法雅节里等待春天Spain welcomes spring with Fallas Fiesta (法雅节). The festival fell in March. A great part of it is the Falla sculpture (法雅雕像). ……

吃美味的粽子，看热闹的龙舟...端午节的习俗可不少Do you love the smell of zongzi? Maybe you will eat some next week. Why... and racingdragon boats(赛龙舟).Zongzi issticky(粘的) rice cooked in leaves. People enjoy different kinds ……

?______________________________________________________________________________ 6. Why did many people...?______________________________________________________________________________6. Why did many people lose their jobs at that time ……

Questions:1. How old are Huan Huan and Yuan Zai?2. What do the children throw into the sky when they are running?Exercise:Complete the sentences:1. 秋天，树叶由绿色变为黄色。 In autumn the leaves change _____ ……

. turn     5. needs     6. leaves     7. die     4. turn     5. needs     6. leaves     7. die ……

do leaves live for? I didn't know myself until recently.One day last month, when I got back home from... little roots at the plant's end. That was why the leaves hadn't died! I realized that leaves live ……

Changing colour in the autumn秋天树叶为什么会变黄呢?Q:Why do leaves change colour in autumn?A:The beautiful oranges, yellows and browns that we see in autumn leaves have in fact been there all along — it's just ……

Trees keep the holes on their leaves close during a fire. QIANTUTrees keep the holes on their leaves close during a fire. QIANTU  Trees hold their breath in a fireTrees hold their breath ……