请用英语举例。谢谢了！在线等候！Since 1949 great changes have taken place in our motherland.

1.Great victories were won in the fight against massive natural disasters.

2.The Beijing Olympics and Paralympics were held successfully.

3.The Shenzhou VII manned space mission was a complete success.

4.The number of its poor rural population dropped from 250 million to 23 million.

go to wikipedia and search for "People's Republic of China"
有许多材料，分政治，外交关系，经济等等。
一样挑一条就成了！