阅读下面短文，按照要求用英语回答问题。（共5小题；每小题2分，满分l0分)
As we enjoy the summer ocean waves along the beaches，we may think nervously about Steven Spielberg’s Jaws and the great fear that sharks inspire in us．Yet we are happy to see global efforts to protect the declining number of sharks．The world has realized that we need the species，like sharks, to keep a balanced ecosystem．
Sharks，in particular，are“in’’these days．Thanks to good public policy and famous stars such as Jackie Chan and Ang Lee，killing sharks for fin soup is no longer cool．
The demand for shark fins has been rising for decades，threatening sharks with extinction(灭绝)-up to 100 million sharks are killed each year just for their fins．But we have started to reverse the trend，particularly in many areas of the United States and overseas where restaurants once proudly provided delicious shark fins on the menu．
In California，a ban on the sale and possession of shark fin soup has gone into effect this year through the efforts of Wild Aid and other organizations.
Overseas marketing and public efforts featuring posters on public transportation systems and TV ads have been underway for the past few years．These efforts all show signs of success, on both the supply side and the demand side of trade in shark fins．
Actually，stopping the killing of sharks is part of a broader movement to stop the killing of wild animals and the buying and selling of wildlife products．These products e from hunting elephants, tigers and rhinos，besides killing marine life．
Whether it is shark fin soup or ivory piano keys，killing animals is big business．The hunting of elephants in search of ivory tusks for luxury(奢侈的)goods has bee a fall-scale war．The decrease of African elephant populations is alarming. Together with international partners, the United States is leading the worldwide effort to reduce demand for high-end products that rely on killing animals．
【小题1】Why do people begin to make efforts to protect the declining number of sharks?
(No more than 15 words)
【小题2】What’s the main reason for killing sharks?(No more than 10 Worals)
【小题3】Who helped California decide to ban the sale and possession of shark fin soup?
(No more than 5 Words)
【小题4】What does the underlined word‘‘reverse”in Paragraph 3 mean?(1 word)
【小题5】In your opinion，what’s the best way to stop killing animals?(No more than 20 words)Because the world has realized that we need sharks to keep a balanced ecosystem.
网友回答
(答案→)Because the world has realized that we need sharks to keep a balanced ecosystem.
解析：文章介绍全世界都意识到我们需要鲨鱼保持生态平衡，所以人们开始努力保护越来越少的鲨鱼。
【小题1】细节题：从第一段的句子：Yet we are happy to see global efforts to protect the declining number of sharks．The world has realized that we need the species，like sharks, to keep a balanced ecosystem．可知人们开始努力保护越来越少的鲨鱼，是因为全世界都意识到我们需要鲨鱼保持生态的平衡。Because the world has realized that we need sharks to keep a balanced ecosystem.
【小题2】细节题：从第三段的句子：The demand for shark fins has been rising for decades，threatening sharks with extinction(灭绝)-up to 100 million sharks are killed each year just for their fins．可知人们杀死鲨鱼主要是想要它们的鱼翅：People kill sharks just for their fins.
【小题3】细节题：从第四段的句子：In California，a ban on the sale and possession of shark fin soup has gone into effect this year through the efforts of Wild Aid and other organizations.可知是Wild Aid and other organizations.帮助加力福利亚出台了禁止鱼翅汤的销售和拥有。
【小题4】猜词题：从第四段的句子：But we have started to reverse the trend，particularly in many areas of the United States and overseas where restaurants once proudly provided delicious shark fins on the menu．从转折连词：But可知在很多提供鱼翅汤的很多地方都改变了。reverse 的意思是“Change”.
【小题5】这是一道开放题，学生只要说的有道理，语言规范就可以得分。