17. The earthquake is the most unpredictable natural disaster.
A. Right B. Wrong C. Not mentioned
18. Few earthquakes happen without peoples awareness.
A. Right B. Wrong C. Not mentioned
19. Seismometers can identify and locate most of the earthquakes in China.
A. Right B. Wrong C. Not mentioned
20. Big earthquakes of a magnitude 8 0r higher seldom happen far from the edges of tectonic plates.
A. Right B. Wrong C. Not mentioned
21. Whenever tectonic plates move, earthquakes happen.
A. Right B. Wrong C. Not mentioned
22. The earthquake that hit the eastern half of the United States two centuries ago is the biggest mid-plate one in history.
A. Right B. Wrong C. Not mentioned
第三部分:概括大意和完成句子(第23~30题,每题1分,共8分)
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为指定段落每段选择1个小标题;(2)第27~30题要求从所给的6个选项中为每个句子确定一个最佳选项。
Learn about Light
1 Ancient civilizations were amazed by the existence of light for thousands of years. The Greek philosophers believed that light was made up of countless, tiny particles that enter the human eye and create what we call vision. However, Empedocles and a Dutch scientist named Christian Huygens believed that light was like a wave. According to them, light spread out and travelled like a straight line. This theory was accepted during the 19th century.
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