提示作文，请写一篇以“Lower Carbon(低碳)，Happier Life'’为主题的英语短文。
要点如下：
| ▲骑自行车上学，父母骑车上班； | ▲将用过的课本留给下届学生： |
| ▲在家使用节能灯；减少洗澡淋浴时间： | ▲请你就此话题补充2个个人做法。 |
要求：
1)不要逐词翻译； 2)在文中不要提及真实的校名和姓名；
3)词数80左右；短文标题和首尾句已给出，不计入词数。
参考词汇：
1)节能灯energy-saving lamp； 2)用过的used； 3)下届lower grades
Lower Carbon，Happier Life
It's our duty to save the environment _________________________________________________________
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Lower carbon, happier life. Let’s take actions.
根据短文内容，完成下面的表格，每空一词。
Nowadays many new and useful inventions have come into use. If I were a scientist, I would have my own invention a magic door, which can take me to every part of the world, just like Doraemon's magic door.
Since our life is getting busier and busier, my magic door is really needed. The population of the world is rising day by day, and the number of cars is getting larger. Therefore, traffic becomes a big problem to people in both poor and developed countries. Moreover, by using a large number of ears, people have to face another problem the pollution of the air. All those reasons lead to the need for such an invention a magic door.
Magic doors have many advantages. Firstly, you can go wherever you want in a minute. Just open the door and go through it, and you can stand in another place. Secondly, magic doors sometimes can even make people safe. Magic doors can be used in everyday life. For example, if you fall in the river, it can help you go out of the river.
All in all, people can get many good things from magic doors. The magic door would be a big change in our life!
| If could, I would have my own 1 the magic door | |
| The problems of using a large number of cars | The advantages of the magic door |
| ●The 2 jam (拥堵) | ●Go 4 they want |
| ●The 3 of the air | ●Make people 5 |
综合填空。
用方框中所给的词的适当形式填空，使短文正确、通顺。每词限用一次。
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The growing population is still a big problem in the world, especially in developing countries. The population in developing countries is larger than that in 1 ones. And it's growing faster than that in any other 2 .
Chinese government has 3 out many plans. And they have .worked well in 4__________China's population. Thanks to them, Chinese people's living conditions are improving 5
About 261 babies are 6 in the world every minute. Just imagine how many more 7 there will be in one year. China is a country with the 8 population, so we still have a long way to go. We should do something to 9 down the growth of the population. It's important for each family to have fewer but 10 children. Or maybe there won't be enough places for people to stand on the earth in the future.