On 3/31, Earth Hour is an international event to turn off lights for one hour. The World Wide Fund for Nature (WWF) organized Earth Hour for protecting our earth and noticing climate change. This event first took place in 2007 in Sydney. Now, a lot of cities are parts of this event to protect our earth. This year, many buildings in Taiwan are parts of Earth Hour plan. And WWF also hope millions of people in Taiwan will join in the event by turning off lights at home.
         There are 5,200 cities, and 2.2 billion people to join in this even to protect the earth.
*international 國際的 event 活動 organize 籌劃 protect 保護 part 部份 notice 注意million 百萬 billion 十億 climate change 氣候差異 city 城市 landmark 地標
【題組】4. What is Earth Hour?
(A) It is a beautiful city.
(B) It is an international event to turn off lights.
(C) It is the World Wide Fund for Nature.
(D) It is in Sydney.