Everything you do to protect the planet helps all living things, including humpbacks(座头鲸) and other species of whales that live in oceans worldwide. And yes—just one kid, like you, can make a difference.__36__．
Don't litter. Rubbish thrown away carelessly outside often washes into storm drains(排水沟), which empty into rivers and eventually flow to the oceans.__37__， including whales.
Say, “No bag, thank you.” Whether you're buying toys, snacks, or clothes, tell the checkout person you don't need a bag.__38__， you'll help reduce the 100 million plastic bags that each year block sewers(下水道), and get swallowed by whales, sea turtles, and other wildlife.
Plant a tree.__39__．They produce oxygen and absorb carbon dioxide(二氧化碳), a gas that animals, including humans, produce naturally as they breathe. But because carbon dioxide also comes from cars and factories, there is too much of it in the atmosphere, which is contributing to global warming. If everyone planted one tree, those trees would remove a large amou nt of carbon dioxide from the atmosphere.
__40__. Every time you leave a room for more than a minute, turn off the light you're using. In this way, you save energy and keep greenhouse gases out of the atmosphere.
Try the family challenge! Many streams and rivers are polluted and littered with rubbish. You and your family can help preserve the waterways by joining others in your community to pick up rubbish.
A．Trees help clean the air we breathe
B．Turn off the light
C．Avoid driving cars
D．By carrying your own reusable bag
E．Treat them like friends
F．Here are ideas for easy, small things you can do
G．Pollution is a growing problem for all the earth's oceans and its wildlife
36．F 根据下面各段首句“Don't litter…Say, ‘No bag, thank you.’…Plant a tree…”可知，文章主要列举了一些在环保方面容易做到的小事，故选F。
37．G 根据including whales可知，前面讲的是海洋生物，因为鲸鱼也属于海洋生物；再根据eventually flow to the oceans可知，随手乱丢的垃圾最终进入海洋，给海洋生物造成伤害，故选G。
38．D 根据“…you don't need a bag…you'll help reduce the 100 million plastic bags…”可知，这样做能够帮助减少塑料袋的使用，D项“通过使用可重复利用的袋子”符合语境，故选D。
39．A 根据“They produce oxygen and absorb carbon dioxide(二氧化碳)…”可知，树能够吸收二氧化碳并释放氧气，即树具有净化空气的作用，A项“树能帮助净化我们呼吸的空气”符合语境，故选A。
40．B 根据“…turn off the light you're using.In this way, you save energy…”可知，本段讲的是节约资源，