Unit 5 Nelson Mandela-a modern hero课时作业

language points

第一节 七选五

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

What does it mean to be green? Green is more than just a color.It also means taking special steps to protect the environment--- the water,the land, and the air we breathe. Here's a four-step guide to being green:

Reduce it!

1 For instance, a shorter shower means you use less water and less fuel. Walk or ride your bike instead of driving a car if you can.

Reuse it

We often throw away old stuff and buy new stuff 2 For instance, if your baby brother outgrows his plastic basketball hoop, why not give it to another family who has a little kid? 3 It's also one less large plastic toy that needs to be produced, packaged，and shipped to the toy store.

Recycle it!

Recycling has never been easier. By separating plastic bottles, cans, paper, and more, you're reducing the amount of trash that goes to the landfill(垃圾场). 4 For instance, some communities take used water--like from the washing machine and shower--and clean it up so it's safe for watering the grass and flowers.

Enjoy it!

It's true that trash and pollution are problems, but the earth remains a wonderful place for you to explore. You can start by visiting the beautiful spots in your city. But before you travel the globe, take a look at your own backyard. Is there a spot where you can put in a little fruit or vegetable garden? 5 Then you can watch with pride as your garden plants grow from sprigs to big plants full of red tomatoes.