13年期末各区cd篇打印.docx

大兴BTwo weeks ago, Ruichang City in Jiangxi Province was hit by an earthquake measuring 5.7 on the Richter scale(里氏震级). It killed 18 people and left hundreds homeless.　 Earthquakes are one of the most deadly natural disasters(灾难) in the world. They happen more often than you would expect.　 In the 24 hours after you read this, 400 to 500 earthquakes will shake the earth. You wont notice most of them because you live in a relatively(相对地) safe area or the quake is too far away or because the quake will be too small to notice.　 Earthquakes are caused by sudden breaks in rock masses(群) deep in the earth. Rock masses are always under very high pressure. If the pressure in a certain area become too much and the rock masses break, an earthquake happens. But exactly when the rock masses reach the breaking point is a mystery(谜).　 China is on the Eurasia(欧亚) plate, where earthquakes happen very often due to the earths plates knocking against each other. Up to 17,139 earthquakes have taken place in China in the past 44 years, according to scientific research.50. What happened to the City of Ruichang? A.18 people were killed in an earthquake.B. Hundreds homeless people left the city. C. An earthquake ruined thousands of houses there.D. An earthquake measuring 7.5 on the Richter scale happened. 51. How many earthquakes can happen in a day in the world?A. 24.B. 44. C. 400 to 500.D. 17139.52. Why does the earth quake? Because ______. A. we live in a relatively safe area B. the pressure in the earth is too big C. the rock masses is reaching the breaking pointD. the rock masses break suddenly deep in the earthCOnce upon a time a woman found she was not easy to wake up in the morning as early as she wished. So she bought a beautiful alarm clock. These clocks are so made as to strike with loud whirring noise at any hour the owner pleases to set them. The lady placed her clock at the head of the bed, and at the right time she found herself roused by the long, rattling sound.She got