题目

如图是一种自制简易净水装置，下列说法不正确的是( ) 第7题图 A. 该净水器工作时没有化学变化 B. 该净水装置中活性炭的作用是吸附 C. 该净水器的净水原理是过滤、吸附和蒸馏  D. 该净水器除去水中部分杂质，净化后的水属于混合物 答案：C阅读理解 阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在正确选项上画勾。 Genghis Khan 　　Genghis Khan, the great Mongol conqueror, was born in about 1162. His father, a petty Mongol chieftain, named the boy Temujin, after a defeated rival chieftain, and for some years the surviving members of the family lived m constant danger and poverty. This was just the beginning, Temujin's situation was to become a lot worse before it got better. When he was a young man, he was captured in a attack by a rival tribe. To prevent his escaping, a wooden collar was placed around his neck. From then on, he was kept as a prisoner in a primitive, barren country, There Temujin rose to become the most powerful man in the world. 　　His rise started when he managed to escape from his captors. He then allied himself with Toghril, a friend of his father's, and chieftain of one of the related tribes living in the area. There followed many years of cruel warfare among these various Mongol tribes, in the course of which Temujin gradually fought his way to the top. The tribesmen of Mongolia had long been known as skilled horsemen and fierce warriors. Throughout history, they had made unexpected attacks into northern China. However, before the rise of Temujin, the various tribes had always spent most of their energy in fighting each other. By a combination of military power, diplomacy, ruthlessness and organizational ability, Temujin managed to join all of these tribes together under his leadership, and in 1206 a meeting of the Monglo chieftains proclaimed him Genghis Khan, or “the universal emperor”. 　　The powerful military machine that Genghis Khan had assembled was then turned outward upon neighboring nations. He first attacked the Western Xia state in northwestern China and the Jin Empire in northern China. While these battles were going on, a strong disagreement arose between Genghis Khan and the Khwarezm Shah Muhammad, who ruled a considerable empire in Persia and central Asia. In 1219, Genghis led his armies against the Khwarezm Shah. Central Asia and Persia were overrun, and the Khwarezm Shah's empire was completely destroyed. While other Mongol armies were attacking Russia, Genghis Khan himself led a raid into Afghanistan and northern India. He returned to Mongolia in 1225, and died there in 1227. 1．What became of Temujin after his father's death? [　　] A．He was driven to despair. B．He was put in prison. C．He was reduced to begging for a living. D．He was forced to leave his own country. 2．It can be inferred from this passage that Mongolians were well experienced in ________. [　　] A．horse-riding and fighting B．farming and horse-riding C．hunting and horse-riding D．fighting and farming 3．The word “overrun” in the last paragraph probably means ________. [　　] A．spreads all over it in large quantities B．the river is so full that the water flows over its edges C．to defeat a place or an area and take control of it D．be defeated and left alone