5．It seemed that the world was at an end.

4．A great number of people were injured or killed and a lot of people were trapped under the ruins.

3．In a few terrible seconds，the city of Wenchuan lay in ruins.The supply of water and electricity was cut off.

2．At 2∶28 p．m.，we suddenly felt everything began to shake fiercely.

8．现在我们正在全力以赴，克服各种困难，重建家园。(rebuild)

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答案：[句子翻译]　1.On May 12,2008，a strong earthquake shook my hometown，Wenchuan in Sichuan province.

7．全国各地的人都来参加救援营救工作。他们把受伤的人送往医院，把死去的掩埋好。(come to rescue，bury)

6．然而，不是所有的希望都破灭了。(not all...)

5．世界似乎到末日了。(be at an end)

4．大量的人员受伤或丧生；许多人被困在废墟下。(a great number of，injure，kill，be trapped)

3．在可怕的几秒钟里，汶川就成为了一片废墟，水和电的供应被切断了。(in ruins，cut off)