D．didn't expect organic farming to be successful

　　解析：推理判断题。根据前文的"with farmlands covering about 10% of the total world－farmland cover"以及画线句子中的"hard work...has paid off"可推断Sir Albert Howard在有机农业研究和种植方面是成功的。

　　25．According to the passage，compared to traditional farming organic farming __C__.

　　a. is more environmentally friendly

　　b. produces a lot more food

　　c. uses less energy

　　d. results in more weeds in the farmland

　　e. is better for human's health

　　A．abc B．acd

　　C．ace D．bce

　　解析：细节理解题。根据优点中第二点的"uses half the energy"、第四点的"environmentally friendly"和"does no harm to human's health"可知ace都是有机农业胜于传统农业的地方。

　　26．The author's attitude towards organic farming is __D__.

　　A．anxious B．hopeless

　　C．unclear D．optimistic

　　解析：观点态度题。根据最后一段的"Organic agriculture is surely better in the long term."可知作者对有机农业的未来充满信心。

　　27．The writer wrote this passage to tell us __D__

　　A．the development of agriculture

　　B．what kind of food is being grown at present

　　C．why organic farming is so popular around the world

　　D．what organic farming is and its advantages and disadvantages

　　解析：主旨大意题。通读全文，可知作者主要告诉了我们什么是有机农业以及其优缺点。

　　C

　　(2018·安徽合肥第168中学高一下学期期末考试)

　　Phone batteries rarely last a full day anymore，so carrying compact chargers(小巧的充电器)is becoming normal. But many of these so－called portable devices are heavy，thick and inconvenient-until Solar Paper is developed.

Chicago engineers have designed a super－thin，lightweight panel (面板)called Solar Paper