听力音频：

https://mp.weixin.qq.com/s/m8WNood-z3pP-GTEP-pnRg

Questions 21-23

Complete the table below. Write ONE WORD ONLY for each answer.

Research about different energy-saving innovations

Kites in Germany	used in different 21 ……………… conditions to reduce the emission of toxic gas
Vehicles in America	powered by 22 ………………
Gas canister in South Africa	invented to reduce its chances to 23 ………………

Which TWO types of interviewees do Greg and Syria choose to do the survey?

A staff on campus

B professors

C local residents

D companies

E university students

Questions 26-30

Choose the correct letter, A, B, or C.

26 What does Syria think about renewable energy? A Most people know very little about renewable energy. B The general public can distinguish different kinds of renewable energy. C The majority of people feel the need to replace fossil fuels with renewable energy.

27 What do the speakers say about modern windmills? A They can be used to pump water from wells. B The location to build them should be carefully chosen. C Farmers use them to grind grain.

28 What aspect of traditional fuels are they going to address? A how to avoid fossil fuels from being depleted B the possible future of traditional resources C how to prevent pollution of traditional resources

29 What does Greg say about nuclear plants? A They are cleaner and less expensive than fossil fuel. B It is the best way to fight climate change. C Few people think they are safe

30 What does Syria think of hydrogen fuel? A The price of it will drop eventually. B It entails environmental problems. C The benefits of it outweigh its high cost.