题型：语法填空（语篇） 题类：常考题 难易度：普通
鲁教版（五四制）八年级上册 动词填空专训
Tigers are strong and dangerous animals. But now they are in danger.
In the past, there were eight kinds of tigers in the world. But during the 20th century, only five kinds of them were left. The number of Siberian tigers (东北虎) (be) about 300, but now it is less than 22. They're in danger of (die) out. If the government (do) nothing, we won't be able to see them in ten to twenty years.
In order to stop people from (hunt) and killing wild tigers, and in order to make wild tigers more, the World Wildlife Fund (世界自然基金会) (start) a program recently. China and twelve other countries joined it.
However, it's not enough. Remember that nature is a food chain (链) . If we hurt and kill too many wild deer and pigs, wild tigers (die) out because of hunger. So the most important thing is (save) the animals that tigers eat. In order to protect the wild tigers, we need to call on (号召) more people to stop eating, hunting and killing wild animals.
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