2020年12月英语六级（第1套 · 含听力）选词填空

The idea of taxing things that are bad for society has a powerful allure. It offers the possibility of a double benefit— __26__ harmful activities, while also providing the government with revenue.
Take sin taxes. Taxes on alcohol make it more expensive to get drunk, which reduces excessive drinking and __27__ driving. At the same time, they provide state and local governments with billions of dollars of revenue. Tobacco taxes, which generate more than twice as much, have proven __28__ in the decline of smoking, which has saved millions of lives.
Taxes can also be an important tool for environmental protection, and many economists say taxing carbon would be the best way to reduce greenhouse gas emissions. Economic theory says that unlike income or sales taxes, carbon taxes can actually increase economic efficiency; because companies that __29__ carbon dioxide into the sky don't pay the costs of the climate change they cause, carbon taxes would restore the proper __30__ to the market.
In reality, carbon taxes alone won't be enough to halt global warming, but they would be a useful part of any climate plan. What's more, the revenue from this tax, which would __31__ be hundreds of billions of dollars per year, could be handed out to citizens as a __32__ or used to fund green infrastructure projects.
Similarly, a wealth tax has been put forward as a way to reduce inequality while raising revenue. The revenue from this tax, which some experts __33__ will be over $4 trillion per decade, would be designated for housing, child care, health care and other government benefits. If you believe, as many do, that wealth inequality is __34__ bad, then these taxes improve society while also __35__ government coffers (金库).