综合写作：
A program called Essential Air Service (EAS), introduced by the United States government in 1978, subsidizes airplane tickets for passengers traveling between small airports in rural areas or small towns and airports in major cities. EAS pays for a significant portion of the flight cost to make the tickets affordable. The rural or small-town communities have to be more than 110 kilometers from a major airport to qualify for the EAS subsidy. Supporters of EAS cite many reasons to continue the program.
First, EAS ensures that all people in the United States have equal access to air transportation, no matter where in the country they live. Without EAS, many people living in rural or less populous areas would be unable to reach major airports easily. That would put the rural inhabitants at a great disadvantage compared with people who live in urban centers.
Second, EAS is essential to the economic development of remote small-town and rural communities. Subsidized air service attracts tourists and businesspeople to visit those areas. Tourists spend money on hotel rooms, in restaurants, and at local stores; commercial travelers set up business opportunities for local companies and entrepreneurs.
Third, although some critics point out that subsidizing air travel is expensive, EAS does not really represent a great financial burden for the government. Flights between rural airports and major urban airports typically use rather small airplanes. One popular type of plane used for the flights is a propeller plane called a nineteen seater, which is considerably smaller and cheaper to operate than planes used on routes between larger airports.
学术写作：
Instructions: Your professor is teaching a class on environmental science. Write a post responding to the professor’s question.
In your response you should do the following:
- Express and support your opinion.
- Make a contribution to the discussion in your own words.
An effective response will contain at least 100 words.
Dr. Diaz
Starting this week, we are going to discuss the effect that pollution has on our environment. Specifically, we will focus on the pollution of waterways, which has caused significant health problems around the world. Large amounts of plastics, industrial waste, and trash pollute the oceans and rivers. I want you to consider the following question: How much can individuals help solve the water pollution problem compared with large institutions such as corporations and governments?
Andrew
Individual efforts will likely have little effect. It is better to focus on large corporations that do the most damage to our waterways. Think of the oil companies that have spills and factory owners that dump chemicals into the waterways. Individual pollute the water too, but companies have much more impact. Business leaders need to set examples for the community.
Claire
I think individual actions are the first step in solving the pollution problem. For example, when one person stops using harmful chemicals or helps clean up a local waterway, it can inspire others. They can use social media to spread the word and share examples of positive behavior. This can quickly become a grassroots movement for change.
