2017年托福独立写作热门素材

　　导语：素材可以让你的托福英语写作人眼前一亮，下面是YJBYS小编整理的2017年托福独立写作热门素材，欢迎参考!

　　Part One

　　托福写作素材模板：智慧城市的兴起

　　素材段落

　　With the widespread application of sophisticated information and communication technologies, the concept of creating a ‘smart city’ has been proposed as the ultimate goal that large cities would seek in their future development. A ‘smart city’ could largely improve the quality of life and the performance of urban services. For example, it has brought local residents a more efficacious and user-friendly public transportation system. In Barcelona, a new bus network has been designed to utilize vertical, horizontal and diagonal routes with a number of interchanges, based on the analysis of the most common traffic flows. Also, when smart traffic lights are set up and traffic management software is installed, the number of green lights on each street has been optimized to avoid traffic congestion as well as to allow ambulances to reach incidents without any delay.

　　单词和词组

　　sophisticated 精密的、尖端的

　　=advanced, updated

　　✎ sophisticated techniques

　　✎ sophisticated medical equipment

　　efficacious 有效的

　　=effective, efficient

　　✎ an efficacious cure for fatal diseases

　　a number of 许多

　　=many, numerous

　　✎ 修饰“可数名词”：a large number of, a great many of

　　✎ 修饰“不可数名词”：a large amount of, a great deal of

　　✎ 修饰“可数名词”或“不可数名词”：plenty of, a large quantity of, a variety of, a wealth of

　　Part Two

　　托福写作素材模板：有机食品和健康

　　素材段落

　　Organic food is much healthier than conventional food due to its higher levels of antioxidants and lower levels of pesticides. Antioxidants have been linked to a lower risk of cancer and other diseases in humans. Scientists have discovered that organic food contains an average of 17% more antioxidants than conventional food. The reason for this is because plants naturally produce antioxidants to defend themselves against pests and diseases. When pesticides are applied to plants, they lose their need to generateantioxidants for their own defenses. It is also important to note that pesticide residues are found to be three to four times more likely on conventional food as compared to organic food. This data is based on a recent study conducted by Dr. Benbrook from the Center for Sustaining Agriculture and Natural Resources at Washington State University. Pesticide residues can cause dizziness and headaches (as their acute effects) and neurological problems and birth defects (as their long-term effects).

　　单词和词组

　　defend … against … 防御、抵制

　　=protect/safeguard … from …

　　✎ defend national security against invasion

　　generate 产生、形成

　　=produce, form, create

　　✎ Nuclear energy, instead of fossil fuels, should be used to generate electricity in future years.

　　话题词汇

　　有营养的` nutritious

　　改善健康 improve health

　　养成健康的饮食习惯 form a healthy diet

　　有机食品 organic food