Which topic drew the most attention from people around the world in 2019？It was climate（气候） change， according to three well﹣known English dictionaries．

   The Oxford， Colls and Cambridge dictionaries chose"climate emergency"， "climate strike" and"upcycling"， respectively， as their"Word of the Year"．This tells us that climate change was a widely﹣discussed issue（话题） in 2019．

   "Climate emergency"means a situation in which urgent action is needed to reduce climate change．"Climates strike" refers to people leaving work or school to call for more action to protect the environment．"Upcycling"refers to making new items out of old or used items to reduce waste．

   Climate change has already affected the world in many ways．Take Venice， for example．Due to climate change， Venice experienced the worst flooding（洪水） it has seen in the last 50 years in 2019．Many stores，restaurants and hotels were flooded．This caused serious damage toting hundreds of millions of euros（欧元）．

   A though we've known about global warming（全球变暖） for a long time， people have been slow to respond to it．The year 2019 might have been the turning point that will finally encourage us to take responsibility．

   "Ten years ago， when the science on the climate issue was first increasing， the influences could be seen as an issue for future generations（子孙后代） ， "Katharine， a climate scientist， told The New York Times．"It's no doubt our issue now．"

   However， simply realizing that climate change is a threat（威胁） is not enough．We must take real action before it is too late．

根据短文内容，用符合语义及语法规则的词填空，每空一词．

（1）The words"Climate Emergency"， "Climate Stike"and"Upcycling"talked about 　　　　，which was the hot issue in 2019．

（2）"Climate strike"means people call for more action to protect the environment 　　working or going to school．

（3）In 2019， Venice lost hundreds of millions of euros because many 　                 　， 　 　 　　were flooded．

（4）What Katharine said means that 　　　 　for us to think over the issue of climate change．

（5）We must do something on climate change 　　than simply think it is a threat．