Question

Do you know that a student can produce up to 240 pounds of school waste and lots of waste gas (气体) during a term? This includes transportation, food, paper, pens, pencils and so on.

Transportation Some parents drive their kids to school every day. We all know waste gas from cars is a main cause air pollution. If parents who live in a neighborhood can take turns to drive their kids to school each day, that’ll be better. Another way of going green is to walk to school if students live near their schools.

Food It’s surprising that only one elementary school can produce up to 19,000 pounds of lunch waste each year. That’s only one school. One way to help take care of the environment is to stop using plastic bags. There are all kinds of environmental boxes for students to put their food in.

Paper, pens and pencils  Lots of paper is thrown away by American students. They throw away about 1.6 billion pens every year. They waste many pens and chemicals (化学药品) in them are bad for the environment. Many more pencils are thrown away than pens. Pencils are made from trees, so if more pencils are thrown away, more trees will be cut down. So students should reuse (再使用) paper, pens and pencils instead of throwing them away.

Backpacks  As fashion comes and goes, almost every kid needs a new backpack every year. They can save lots of money and materials if they reuse the same schoolbags each year.

How to save the environment
Transportation	If possible, parents in a neighborhood should 1. to drive their kids to school each day. Students can go to school 2. if their homes are not far from their schools.
Food	3. can be used to keep food for lunch instead of plastic bags.
Paper, pens and pencils	Papers, pens and pencils shouldn’t 4., but be reused.
Backpacks	Lots of money and materials can be saved if the same 5. each year.

Answer

1.take turns.

2.on foot/ by walking.

3.Environmental box.

4.be thrown away

5.schoolbags are reused

【解析】

文章大意：主要描述了学生每天在学校浪费了大量的物品及产生了废气，这包括运输、食品、纸张、钢笔、铅笔等等。提醒我们节约勤俭，保护环境。

1.由第二段第三句“parents who live in a neighborhood can take turns to drive their kids to school.”可知，家长轮流送孩子上学。故正确答案为“take turns”。

2.由第二段第四句“Another way of going green is to walk to school.”可知，另一个环保的方法就是走路去学校。故正确答案为“by walking/ on foot”。

3.由第三段最后一句“There are all kinds of environmental boxes for students to put their food in.”可知，一个代替塑料袋的办法就是用环保盒子。故正确答案为“Environmental box”。

4.由第四段最后一句“students should reuse (再使用) paper, pens and pencils instead of throwing them away.”可知，笔和纸不应该直接被丢弃，而应该再使用。故正确答案为“be thrown away”。

5.由最后一段最后一句“They can save lots of money and materials if they reuse the same schoolbags each year.”可知，通过重复使用同样的书包可以省很多钱和材料。故正确答案为“schoolbags are reused”。