Each and every one of us is responsible for the greenhouse gases we send in our daily actions and choices.【C1】______, combating

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问题     Each and every one of us is responsible for the greenhouse gases we send in our daily actions and choices.【C1】______, combating climate change is going to take the【C2】______efforts of everyone on the planet. The【C3】______household carbon emission(排放)in our country is 2.41 tons of carbon dioxide annually. That’s【C4】______to fill half an Olympic swimming pool. Surprised?
    Well, here is how you c an work to【C5】______it. Firstly, get started【C6】______calculating your own carbon footprint. This will give you a starting point【C7】______which to begin monitoring your progress. You enter details【C8】______what sort of apartment you【C9】______in, your personal energy use and travel habits. Secondly, each week, choose one day【C10】______you don’t eat meat. Meat uses up lots of【C11】______because it takes a long time【C12】______produce. Animals produce methane(甲烷), which is【C13】______dangerous greenhouse gas. Thirdly, only【C14】______the amount of food you【C15】______and if there are leftovers, you【C16】______get creative. For instance, try to【C17】______them into a soup. Ask to take food home from restaurants【C18】______there’s some left, but remember to take your own container to avoid using a disposable carton. Fourth, find out about local【C19】______that are committed to combating climate change. Stay informed, get【C20】______, and spread the word.
【C5】

选项 A、increase
B、reduce
C、repair
D、raise

答案B

解析 由空格前的不定式符号to和空格后的代词it可推断出空格处应填动词。上一段提到平均每户每年的二氧化碳排放量大,所以此处句意应为“如何做才能减少排放量”,选reduce符合上下文语义。
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