约1870字。

　　Unit4  Earthquakes-Grammar学案
　　the attributive clauses 定语从句
　　I. Sentences translation (English into Chinese)
　　1. But the one million people of the city, who thought little of these events, were asleep as usual that night. (Line 8)
　　2. It was felt in Beijing, which is more than two hundred kilometers away. (Line 11)
　　3. A huge crack that was eight kilometers long and thirty meters wide cut across houses, roads and canals. (Line 13)
　　4. The number of people who were killed or injured reached more than 400,000. (Line 16)
　　5. Then, later that afternoon, another big quake which was almost as strong as the first one shook Tangshan. (Line 24)
　　6. The army organized teams to dig out those who were trapped and to bury the dead. (Line 32)
　　7. Worilt shelters for survivors whose homes had been destroyed. (Line 35)
　　8. The powerful earthquake of Tangshan happened in the city of Tangshan, Hebei Province on July 28th, 1976, which caused more than 240,000 deaths and the whole city was destroyed. (Best English P35)
　　9. However, they can warn people who live in these areas by prediction, in advance to take precautions against such disasters. (Best English P35)
　　II. Summary of the rules of the attributive clauses
　　1. 关系代词/副词
　　关系代词/副词 在从句中的成分 所指代的先行词 例          句
　　who /whom 主语/宾语（可省） 指人 He who laughs last laughs best.
　　This is the boy (whom /who) you saw yesterday.
　　which 主语/宾语（可省） 指物/事 A thing which was bitter to endure may be sweet to remember.
　　that 主语/宾语（可省） 指物/事 The panda that is chosen Dragon Warrior is big and fat.
　　指人 They that know nothing fear nothing.
　　whose 定语（某…的） 指人 Worilt shelters for survivors whose homes had been destroyed.
　　指物/事 The book whose cover is blue is mine.