The teacher stood before his class of 30 students and was going to hand out the final exam papers. “I know how hard you have all worked to get ready for this test.  he said. “And because I know you are all able to understand these questions. I am ready to offer a B to anyone who would prefer not to take the test."
    A number of students jumped up to thank the teacher and left the classroom. The teacher looked at the rest students and said. “Does anyone else want to get a B? This is your last chance. ”Two more students decided to go. Seven students stayed. The teacher then handed out the papers. There were only three sentences on the paper： Congratulations! You have received an A in this class. Keep believing in yourself.
    I never had a teacher who gave a test like that. but I think that it is a test that any teacher could and should give. Students who do not have confidence in what they have learned are B students at most.
    The same is true for students in real life. The A students are those who believe in what they are doing because they have learned from both successes and failures. They have learned life’s lessons. whether from school education or from events in their lives，and have become better people. Scientists say that by the age of eight，80% of what we believe about ourselves has already been formed. You are a big kid now and you realize that you have some limits(局限). However, there is nothing you can't do or leant to be. Sir Edmund Hillary, the first person to reach the top of Mount Qomolangma (珠穆朗玛峰)said，“We do not conquer the mountain, but ourselves. ”

    晋文公重耳，晋献公之子也。二十二年，献公使宦者履鞮趣杀重耳。重耳逾垣，宦者逐斩其衣袪。重耳遂奔狄，重耳居狄凡十二年而去。

    至齐，齐桓公厚礼，而以宗女妻之，重耳爱齐女，毋去心。赵衰、咎犯^①乃於桑下谋行。齐女侍者在桑上闻之，以告其主。其主乃杀侍者，劝重耳趣行。重耳曰：“人生安乐，孰知其他！必死于此，不能去。”齐女曰：“子一国公子穷而来此数士者以子为命子不疾反国报劳臣而怀女德窃为子羞之且不求何时得功？”乃与赵衰等谋，醉重耳，载以行。行远而觉，重耳大怒，引戈欲杀咎犯。咎犯曰：“杀臣成子，偃之愿也。”重耳曰：“事不成，我食舅氏之肉。”咎犯曰：“事不成，犯肉腥臊，何足食！”乃止，遂行。

    重耳至秦，缪公以宗女五人妻重耳，故子圉^②妻与往。重耳不欲受，司空季子曰：“其国且伐，况其故妻乎！且受以结秦亲而求入，子乃拘小礼，忘大丑2乎！” 遂受。缪公大欢，与重耳饮。赵衰歌黍苗诗。缪公曰：“知子欲急反国矣。”赵衰与重耳下，再拜曰：“孤臣之仰君，如百穀之望时雨。”

    晋国大夫栾、郤等闻重耳在秦，皆阴来劝重耳、赵衰等反国，为内应甚众。于是秦缪公乃发兵与重耳归晋。晋闻秦兵来，亦发兵拒之。然皆阴知公子重耳入也。重耳出亡凡十九岁而得入，时年六十二矣，晋人多附焉。

    文公元年春，秦送重耳至河。咎犯曰：“臣从君周旋天下，过亦多矣。臣犹知之，况于君乎？请从此去矣。”重耳曰：“若反国，所不与子犯共者，河伯视之！乃投璧河中，以与子犯盟。丁未，朝于武宫，即位为晋君，是为晋文公。文公修政，施惠百姓。赏从亡者及功臣，大者封邑，小者尊爵。

    七年，晋文公、秦缪公共围郑，以其无礼于文公亡过时，及城濮时郑助楚也。围郑，欲得叔瞻。叔瞻闻之，自杀。郑持叔瞻告晋。晋曰：“必得郑君而甘心焉。”郑恐，乃间令使谓秦缪公曰：“亡郑厚晋，於晋得矣，而秦未为利。君何不解郑，得为东道交？”秦伯说，罢兵。晋亦罢兵。

    九年冬，晋文公卒，子襄公欢立。

（节选自《史记·晋世家》。有删改）

    China's cancer researcher Zhu Chen, together with two French researchers Anne Dejean and Hugues de Thé, received Sjoberg Prize 2018 in Stockholm Concert Hall, Sweden on Friday.

    “We used wisdom from both Chinese and Western medicine and offered a cure to one of the most deadly cancers,” Chen told Xinhua, “I feel that Chinese medicine has potential to contribute more to human health. It struggles for benefiting all mankind. It's a language of peace, and of development and progress.” Chen recalled the cooperation with the two French researchers for over 30 years.

    This year's Sjoberg winners have developed a new and targeted treatment for a specific form of blood cancer called acute promyelocytic leukaemia (急性早幼粒白血病). It was once one of the deadliest forms of cancer, but it is now possible to cure nine out of ten patients who receive the new treatment. The winners have made this revolutionary development possible by methodically mapping the molecular mechanisms responsible for the disease.

    The Prize is awarded by the Royal Swedish Academy of Sciences and is funded (资助)by the Sjoberg Foundation. The foundation, with a donation of 2.5 billion US dollars, was founded in 2016, and serves to promote scientific research that focuses on cancer, health and the environment.

    The Prize is an annual international prize in cancer research awarded to individual researchers or research groups. The prize amounts to one million US dollars, of which 100,000US dollars is the prize sum and 900,000US dollars is funding for future research.

请将与下列自然现象所对应的物态变化的名称填在相应的横线上：把废铁炼成铁水____ ；湿衣服晾干了____ ；冬天窗户玻璃上凝结小水珠____ ；放在箱子里的樟脑丸不见了____ ．