根据短文理解，从A、B、C、D四个选项中选择最佳的一项填空。 Earthquake are common: thousands of them happen each day. But most are too weak to feel. During a （1） earthquake, there is often a great noise first. Then the earth （2） terribly and many houses fall down. Railway tracks break and trains go （3） lines; a great many factories are destroyed; thousands of deaths are caused, and many more lose homes. Besides the great damage and deaths caused by the earthquake （4） , other accidents such as fires often （5） . More buildings are destroyed and more deaths caused. It is well-known of the dangers of an earthquake, （6） for centuries man has been making researches on earthquakes. More than 2000 years ago, （7） , a Chinese scientist named Zhang Heng invented a machine which could （8） from which direction the seismic waves（地震波）had come, and this machine is still used by scientists today. Now we know much more about earthquake and （9） they happen, but we still can't （10） exactly when and where an earthquake will happen, and can't stop it from happening.（1）A．real B．weak C．big D．small（2）A．moves B．shakes C．bumps D．breaks（3）A．on B．along C．off D．with（4）A．them B．it C．themselves D．itself（5）A．follow B．get C．have D．enter（6）A．becauseB．and C．but D．then（7）A．as a resultB．in fact C．for example D．as well（8）A．find out B．think up C．point at D．look for（9）A．where B．why C．what D．when（10）A．say B．talk C．speak D．tell