阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

The topic of this programme is environmental 【小题1】(protect). We human beings 【小题2】(do) a lot of things at the cost of the environment to develop economy quickly in the past few years. I do think it is time for us to understand 【小题3】 importance of protecting the environment and do something about it. Today I would like 【小题4】(introduce) some simple but useful ways that we can follow 【小题5】 (easy) in our daily life. Firstly, turn off lights if it is unnecessary. Then, go out 【小题6】 environment﹣friendly ways such as by bus, by subway or by bike. We can even walk to work when possible, 【小题7】 is really helpful for both of our budget and health. Thirdly, take a cloth bag when we go 【小题8】(shop). Please don't use plastic ones. Of course the public should raise environmental awareness and realize 【小题9】 is our duty to protect the environment. Last but not least, the government should make laws to guide people's 【小题10】 (behave).