.– By Huan Wei (郇唯) of BeijingM:Oh, there is a poor monkey in the black box. I must try my best to save my...What are the two dogs doing? What do you think they’re saying to each other?Send your ideas ……

我是地球小卫士！
塑料袋不可降解，会污染环境。” Like Xiaoyu, many kids are trying to save theEarth. We have only one Earth. It’s our home... to help? Many kids have “green tips” to share. Let’s see what they are doing!What kind ofbulbsdo you ……

realize what they are doing when they kill the animals? I cannot imagine what a world without these animals would be like. I know my own strength is limited, but I will do my best to call on people ……

is very far from Earth. Every 26 months, Mars is closest to Earth. This is the best time to launch a Mars probe with a carrier rocket (运载火箭). Doing this can save energy and time. In 2020, Mars ……

from Earth. Every 26 months, Mars is closest to Earth. This is the best time to launch a Mars probe with a carrier rocket (运载火箭). Doing this can save energy5 and time. In 2020, Mars will be closest ……

monkey in the black box. I must try my best to save my fellow (伙伴) monkey!By Song Qinyan...看看右边这幅图,尽情发挥你的想象力,猜猜这两只狗在说些什么？What are the two dogs doing? What do you think they are saying ……

-to-face, my friends edit themselves, showing me their best. They're nice, smart people. Whereas face... and not always making the best impression.I'm left with a dilemma. Who is my real friend ……

忙忙碌碌的卫星小能手忙忙碌碌的卫星小能手I fly in space, moving around Earth. I look like a big bird. My wings are solar... people on Earth live better.I fly in space, moving around Earth. I look like a big bird. My wings ……

coming to save your friend’s life, and my own. The trip is a difficult one. I will not be myself... home, Miranda’s best friend Sal gets hit in the stomach. Sal stops hanging out with Miranda ……

save paper you are protecting forests. Now, I use both sides of the paper. I carefully use every page in my notebook. I use cloth handkerchiefs. I believe the less paper we use, the more trees ……

基努·李维斯：天生的异类偶像。
, Reeves plays an alien named Klaatu who comes to Earth to assess (评估) the damage humans are doing to the planet. Klaatu will decide whether he needs to destroy humankind in order to save Earth.Playing ……

. People do this to save energy on Earth....地球一小时。DID you turn off the lights in your house on Saturday? The Earth Hour of 2010 started at 8:30 ……

. People do this to save energy on Earth....地球一小时。DID you turn off the lights in your house on Saturday? The Earth Hour of 2010 started at 8:30 ……

for doing this?My parents give me pocket money, and I save it to buy things I like. But my mom always...; 建议阅读时间  4分钟Dear Patrick,Dear Patrick,My parents give me pocket money, and I save ……

to save Earth? (多选题)3. What do countries and scientists do to save Earth? (多选题)a. use clean energy...练习时间练习时间How many people can Earth support? page 3How many people can Earth support? page ……