Students of the central primary school of Shangli town play rope-skipping in a makeshift classroom in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao) 

Students of the central primary school of Shangli town take part in an after-school activity in a makeshift classroom in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao) 

Students of the central primary school of Shangli town enjoy the rain ouside a makeshift classroom in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao)

A student of the central primary school of Shangli town enjoys the rain outside a makeshift classroom in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao) 

Students of the central primary school of Shangli town play with pinwheels during class break in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao) 

A student of the central primary school of Shangli town enjoys the rain outside a makeshift classroom in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao) 

Students of the central primary school of Shangli town have fun during class break in Shangli, Lushan county, Southwest China's Sichuan Province, May 16, 2013. The schoolhouses of the Shangli Town Center School were destroyed in the 7.0-magnitude earthquake taken place in Lushan on April 20, leaving more than 1, 200 students to have classes in newly built prefab houses. (Xinhua/Liu Xiao)