Did you throw something away today? The answer for most people would be yes. But where does our _______ go?

It doesn’t just sit in the rubbish bin. Every day, _______ come to take the rubbish from our rubbish bins. They put it into a big truck and _______ it to landfills（垃圾填埋场）. At the landfill, people sort the rubbish. They recycle some, _______ some and bury some of it underground. The more rubbish gets recycled, the _______. It means that less rubbish ends up in landfills. Landfills can also be bad for the environment.

So many Chinese cities encourage everyone to sort out their rubbish _______ throwing it away. Put the food in one bag. Put the plastic bottles in _______. And throw them in the right rubbish bins. In this way, we can help _______ a lot of time, money and energy for all of society.

Many foreign _______ have good sorting systems. So they have higher recycling rates（比率）. In Sweden, only 4 percent of household waste ________ in landfills every year. In Japan, people recycle nearly 50 percent of all rubbish.

There is ________ a lot to do when it comes to rubbish sorting in China. People in the country make about 300 million tons of rubbish every year. ________ they only recycle less than a quarter of the waste. The ________ of it ends up in landfills. Most of it is unsorted. The good news is that many cities are trying different ways to make things better. Beijing will start a new program to ________ rubbish sorting next year. If people sort out their rubbish, they’ll ________ WeChat bonus points. They can exchange the bonus points for shopping cards!

April 22nd is World Earth Day—a day to remind people to protect the earth. So on that day, our family held an activity “bottle of trash challenge”. That means the trash needs to be put in a 600ml bottle. We decided to challenge ________ and produce as little trash as possible.

My father worked online all day, so he didn’t produce any paper waste except paper napkins. He made the ________ trash in our family. My mother cooked and produced plenty of ________ waste, such as vegetable leaves, eggshells and food bags. What’s worse, we couldn’t eat up all the food of the dinner that day. So leftovers(残羹冷炙) couldn’t be ________. It was not easy for mom to ________ all the trash, but she found a way to put it all into the bottle. How ________!   My sister, a 16-year-old student, was busy preparing for her exams. She had to use paper to work out math or physics problems. She used only one side of the paper in the past. But that day, she tried to use ________ sides of the paper ________ she realized we were challenging ourselves. She did a good job!

I was different from my sister. I love snacks and drinks. So my trash was almost from them. I was highly alert( 警觉的) that I must produce less waste. I ________ had snacks or drinks. It was too difficult, but I did it! I have learnt a lot ________ this activity. I realize that everyone can produce less trash. We should start with small actions to protect the earth!

【推荐3】Like most children growing up in the ________, Mike loved being outdoors and traveled around every inch (英寸) of the area.

With a deep love of the land, he had a strong wish to protect it. So when Mike saw rubbish floating (漂浮) in the rivers, he got ________. He knew he had to do something to ________ the pollution. While only in the third grade, Mike started a group. Its ________ was to clean up the countryside and teach other young people about pollution and its dangers. But Mike faced a challenge. As he was shy, he found it hard to speak out ________. However, with his mom’s help, Mike ________ overcame (战胜) his shyness. He said, “I know I must speak in front of people. It’s not anybody else’s job but ________. I must take responsibility (承担责任) and do what I am ________ to do. When your heart is into it, nothing will stop you.”

Mike worked hard to introduce his idea to the public. He handed out leaflets (传单) and even appeared on radio and TV. ________ the work was hard, his efforts paid off. He won ________ from several thousand people. And his group collected and recycled (回收利用) more than 22,000 pounds of rubbish.

Robert Lee grew up in New York. Because his family wasn’t _______, he learned from a young age that it was important to cut down on food waste（浪费）. _______ he was at school, he joined a student group to send leftovers（剩饭菜）to people without homes. This experience made him _______ how serious the problem of food waste was.

After _______ school, Lee and a friend started an organization（组织）called Saving Leftover Cuisine. Its _______ is to get unsold（未售出的）food from restaurants and send it to people in need. Volunteers（志愿者）of the organization _______ food from restaurants around the city and save it for those in need.

Lee and his team made an App（应用软件）_______ the organization. Restaurants use it to give them the _______ about how many leftovers they have each day. Then volunteers get the food and give it out. Lee’s organization is a(n) _______ now. He and his team sent over 150,000 kilos of food, ________ almost 300,000 meals to people in need.

Lee only did a(n) ________ thing. However, he helped ________ the life of people around him. Lee said that ________ work wasn’t over. “It is ________ the beginning. The need is so ________ that we need to do a lot more. We hope to help more people in the future.”

【推荐2】In China, a lot of food is wasted every year and the waste food is enough for 200 million people. The food is wasted in restaurants, at home and in schools, etc. In restaurants or at home, people often order or cook _________ food. But they can’t eat it up. When they go out of a restaurant, full and happy, they never look back _________ the food on the table again. Should Chinese consumers(消费者) be _________ for the terrible waste?

In schools, we can often see a lot of students _________ food away after meals and they only eat the food they like. Everyone is supposed to have enough food to eat. However, in some places, the food is so little _________ a lot of people died from hunger. Although China has tried hard to solve _________ of hunger over the past thirty years, the job is not finished yet.

Food is important to us all. We can’t live without food. So _________ is necessary for us to love food and try to eat up everything on our plates. When we eat in restaurants, we should pack up the leftovers (剩菜剩饭). We also need to tell other people to stop _________ food as soon as possible.

March 22nd is World Water Day. It started in 1993. It not only makes us think about the importance of water, but also calls on us to ______ and protect water. Today, we’re facing terrible water problems. Among them, wastewater problem is especially ______.

What is wastewater? It is used water. Usually, wastewater comes from homes, ______, hospitals and so on. It is produced by different kinds of activities, including washing clothes, taking showers and using the kitchen. The rain also ______ wastewater when it is running down the street during a storm. No matter where it comes from, this kind of water is sure to have ______ harmful in it.

______ must we treat（处理）wastewater? Wastewater has a big influence on our life. It causes both illness for us and pollution for the environment. We must care for our environment and our own ______.

How can we treat wastewater? Different kinds of wastewater need different ways of treatment. Wastewater ______ homes can be reused. We can use the water from showers and washing machines to water plants or flush toilets. Then there will be ______ wastewater. Also, factory wastewater has to be cleaned ______ it goes back to nature.