With the global warming getting worse， more people choose to live a low-carbon life for the purpose of reducing greenhouse gases.

We’d better save much water and paper and electricity. We should use less carbon and oil. It’s important to turn off the lights， and computers when leave room. We should take our own bags in shopping instead of using plastic bags from supermarket. We can buy few clothes which are unnecessary. We shouldn’t buy or use one-off cups or chopsticks or bowls. It’s good for us to walk or ride bikes to school instead of taking cars. We can also plant more trees to change the air around us.

Let’s take actions and be a low-carbon people.

题目分析：这是一封倡议书，首先要用正确的格式去写，会用一些短语，如had better do sth.等，能表达出表示建议的句子。会仿照课文的句子写出正确的英语句子，这里介绍几点做法，所以注意过渡词的使用。用一般现在时，用第一人称来叙述。

【亮点说明】短文用了一些短语和固定句式，为文章增色不少，如：It’s important to turn off the lights， and computers when leave room.等。