When people think of tigers, they think they are strong and dangerous. But now, the big animal is calling for our help. There were once eight kinds of       in the world, but three died out during the 20th century. In the last 70 years, the       of Siberian tigers (东北虎)has gone from as many as 300 to       22 somewhere, The Siberian tiger has been       dying out completely, If the government doesn’t make any efforts, it’s quite    that there will be no more Siberian tigers in China in ten to twenty years.
In order to double the number of wild tigers in the      ten years, the World Wildlife Fund has started a program recently. It       save wild tigers and put an end to tiger hunting and killing. China, together with twelve other      ,has joined in.
Wild animals, such as red deer and wild pigs, are the main       of the tigers, The hunting of these animals is the greatest threat(危险)to tigers. So the most important thing is       the animals that tigers eat. To protect the wild tigers, we need to call on more people to stop eating and hunting wild animals.

A．pigs B．koalos C．deer D．tigers

A．name B．kind C．number D．owner

A．less than B．more than C．bigger than D．better than

A．in need of B．in danger of C．in front of D．in case of

A．possible B．impossible C．necessary D．important

A．last B．next C．past D．lastly

A．aims to B．used to C．refuses to D．decide to

A．cities B．provinces C．towns D．countries

A．friends B．food C．members D．families

A．to sell B．to kill C．to save D．to eat