Tham khảo tài liệu 'toefl ibt the official ets study guide_05', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | . 0 0 0 p 0000 ịí 0000 Ijnnũ j5 0 0 0 0 fS 00 00 p _ __ Listen to Track 14 on the CD. Questions 11. What is the talk mainly about A common method of managing water supplies The formation of underground water systems Natural processes that renew water supplies Maintaining the purity of underground water systems What is the professor s point of view concerning the method of safe yield It has helped to preserve the environment. It should be researched in states other than Arizona. It is not an effective resource policy. It ignores the different ways people use water. According to the professor what are two problems associated with removing water from an underground system Choose 2 answers. Pollutants can enter the water more quickly. The surface area can dry and crack. The amount of water stored in the system can drop. Dependent streams and springs can dry up. o Play Listen again to part of the lecture by playing track 15. ĨSÍÌ2. Then answer the question. To find out whether the students are familiar with the issue To introduce a new problem for discussion To respond to a student s question To encourage the students to care about the topic What is a key feature of a sustainable water system It is able to satisfy short-term and long-term needs. It is not affected by changing environmental conditions. It usually originates in lakes springs or streams. It is not used to supply human needs. What does the professor imply about water systems managed by the safe yield method They recharge at a rapid rate. They are not sustainable. They must have large storage areas. They provide a poor quality of water. 180 THE OFFICIAL GLIDE TO THE NEW TOEFL 1BT 0 0 0 0 ế 0 0 0 Fliy Listen to Track 16 on the CD. Questions 17. Why does the professor talk about Plato s description of society To explain why societies face certain problems To point out problems with Plato s ethical theory To introduce students to the political structure of ancient Greece To help explain Plato
