题目内容：

    China has made great improvements in environmental protection during the past 70 years 1. Each species（物种）on Earth has a role to play in the ecosystem.

In recent decades，a series of wildlife-protection movements have been carried out by the central government. 2. The giant panda and the crested ibis are among these success stories.

The giant panda used to have a population of 1，114 in the 1970s. It now totals 1，864 thanks to 52 protection areas. 3. By the end of last year， seven of the nine pandas released had survived in the wild. 4. In 1981，only seven crested ibises were found in Yangxian county，Shaanxi Province.Since then，breeding programs have helped the population reach 2，000.China has even sent crested ibises to Japan and South Korea in recent years， to help with the species' survival.

5. Key projects will be continually carried out to improve protection，including making the lists of wild animals and plants under State protection，and also fighting against illegal wildlife trade， which includes ivory（象牙）.

A.As environmental damage has increased， signs of change have appeared around the world.

B.Another species was once thought to be extinct.

C.Scientists have worked to feed pandas and then release them into the wild.

D.People call for immediate protection of the remaining species.

E.Several species in danger of extinction have made impressive progress thanks to the methods.

F.China will continue its efforts of the wildlife protection.

G.Protecting wildlife is， without doubt， an important part.