ST_010
听力音频：
综合写作
In recent years, wind energy as a source of renewable and clear energy has become increasingly popular. Unfortunately, wind energy has one significant environmental drawback: fast-moving turbine blades .pose serious threats to birds flying through wind farms. Various strategies are now being considered to make wind farm turbines safer for birds.
Radar
One method involves installing radar devices in wind turbines. The purpose of the radar devices is to scan the landscape and detect when groups of birds are approaching the wind farm. Once the devices identify the birds on the horizon, they capture images of the landscape and notify wind farm operators. After examining the radar images, the wind farm operators can temporarily shut down the wind turbines to allow the birds to fly safely through the wind farm.
Purple paint
Another option is to paint wind turbines purple. The conventional colors of wind turbines are white and gray. These colors are usually used so that the turbines blend into the background. However, these colors also attract insects. A high concentration of insects, in turn, draws in birds that prey on the insects. Scientists have recently reported that purple is the least attractive color for the insects Therefore. if wind turbines are painted purple, they will attract fewer insects, and fewer birds will come close to the turbine blades
Sound alarm
A third way is concerned with using a sound alarm system to warn birds of wind turbines in front of them. While flying, most birds look to the side and down, as their eyes are located on the sides of their heads and their bodies are in a horizontal position. The sound projected by the wind farm would alert birds. and it is believed that it would make them look ahead and fly slower or stop flying completely. The sound alarm systems would likely save birds from the danger posed by wind turbines.
学术写作：
教授：影响雇主决定是否让员工远程或者办公室工作的最重要因素是？
Claire：团队的士气。尤其是小企业，应该考虑一起工作。
Andrew：成本。成本过高时，应该考虑让大家远程工作。
Dr. Diaz: We’ve been discussing employee working arrangements- whether employees should report to an office or work at home. Some businesses require all employees to work in the office. Others choose not to have a physical office and have all employees work from home. In
industries where remote work is possible, what is the most important factor for employers to consider when deciding where employees should work, and why?
Claire: I don’t think businesses should allow their employees to work from home, because creating a sense of community and camaraderie among employees is so important for the success of a business, especially if it’s a small business. It is challenging to develop that dynamic when employees are not together physically in the same space.
Andrew: I think the most important thing to consider is the bottom line: keeping company expenses down. For example, requiring all employees to work from home might be the best option from an economic standpoint. Renting office space is expensive, as are the utility bills. Think of how much money a business could save if employees worked from home.
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