Section4 预测重点 (5篇)

　　主题提示：Pay-as-you-go

　　主题提示：Biomasses development

　　主题提示：Red imported fire ants

　　主题提示：Ancient language learning

　　主题提示：人类嗅觉的研究

　　Section 4

　　主题提示：Pay-as-you-go

　　Example: dentist

　　31. how to charge the lawyer

　　32. method of payment depends on what personality

　　33. type of customs used: formal and private

　　34. 一种one-time payment:付费的 “insurance” effect

　　35. 另一种出租是：用多少付多少the “taxi” effect

　　36. period of 10 weeks

　　37. take the gym as example people overestimate consideration of cost rather than quality

　　38. you can get online brochure or post monthly per booklet

　　39. collect data with satisfaction in consumers

　　40. when doing… it helps offer the customers a calculator

　　Section 4

　　主题提示：Biomasses development

　　Background: Advantages

　　31. Biomasses fuel on finance: product at no cost

　　32. convenience and easy to handle and store

　　Production

　　33. materials processed as powder form

　　34. need add some substances, like starch

　　35. mixture with different shapes e.g. holes

　　36. only need input a little energy of electricity

　　Applications

　　37. in USA and Europe, biomasses already used in agriculture

　　38. In China, year 2002, there are already 600 factories

　　39. In Uganda, biomasses are applied mainly in researches and business

　　40. in the future, it is predicted that the demand will increase