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HE is one of the most charming young heroes since Harry Potter. Like Potter, he is chosen by fate to carry out a mission , but unlike the boy wizard, he doesn’t get any chances to have fun or hang out with friends because he’s a little too busy preparing to lead during an upcoming war to save the Earth. Meet Ender Wiggin, 15, the main character of the hit US sci-fi movie Ender’s Game (《安德的游戏》), which will come out on Jan 7 in China. The story opens in 2086, 50 years after an insect-like alien race, called the Formics, attacked the Earth and killed tens of millions of people before being driven back to their home planet. Since then, human beings have been in a state of fear, awaiting a second attack. Earth’s military leaders seek young warriors to risk going into space for battle, and children are taught to compete for these positions. As the film explains, youths can make leaps of logic and intuition, devising effective attack strategies more quickly than adults. So here comes Ender, the savior (救世主) of all mankind. Though Ender is a skinny kid, smaller than most, he is also smarter than average. He tends to analyze situations and easily find ways to achieve the most positive outcomes. This rare gift makes him stand out in the program and get promoted to the Battle School, where he is directed to plan and carry out a series of virtual attacks on the Formics. Can he use his military talents to wipe out Earth’s enemies? Despite the obvious “be all you can be” subtext (潜台词), the movie “explores complex issues, including the consequences of violence and maintaining humanity and morality during wartime with intelligence and insight,” commented Yahoo. According to The Hollywood Reporter, the film best presents the power of empathy (感情移入), which is what makes Ender a good leader. “The reason Ender succeeds is because he understands what makes his opponents tick (有某种行为) on the battlefield,” explained the entertainment news site. 小题1:The underlined words “a mission” in the first paragraph probably refer to “______”. A.having fun and hanging out with friends B.being a boy wizard to save the Earth C.working to save all of mankind D.acting as a leader of the Formics 小题2:Earth’s military leaders want to choose youths to be warriors because they think ______. A.youths are smarter and more fearless than adults B.youths are more willing to take risks in space C.youths have sharper intuition and quicker reactions than adults D.youths adapt to new battle environments more quickly than adults 小题3:Which of the following statements is TRUE according to the text? A.The movie intends to encourage people to try to be what they want to be and never give up. B.Ender is able to defeat Earth’s enemies because he possesses a super power that enables him to read his enemies’ minds. C.Ender’s success proves that a good leader should have intelligence and insight and make full use of his or her teammates’ talents. D.The movie discusses a variety of issues such as the effects of violence and the importance of morality and humanity during wartime.
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【判断题】滚动轴承 7310B的公称接触角为15°。
A.
正确
B.
错误
【单选题】下述哪一种因素与血栓形成无关
A.
心、血管内膜损伤
B.
纤维蛋白溶酶增多
C.
血流缓慢
D.
血小板增多
【单选题】下述哪一种因素与血栓形成无关
A.
心、血管内膜损伤
B.
纤维蛋白溶酶增多
C.
血流缓慢
D.
血液凝固性增高
【简答题】(6分)2005年国家质检总局铝合金抽检合格率约为90%。已知国家行业标准中铸造铝合金的各成分的质量分数为:Si—4.5%—5.5%,Cu—1.0%—1.5%,Mg—0.4%—0.6%,其余为Al。 现对某品牌的铸造铝合金中所含的四种成分作如下的实验检测: ①称取18.0 g铸造铝合金样品,分成等质量的A、B两份。向A份加入足量NaOH溶液,B份加入足量的稀盐酸。(已知:Si+2NaOH+H 2 ...
【单选题】下列说法不正确的是(  )
A.
石油裂化的目的是提高汽油的产量和质量
B.
乙烯的产量是衡量一个国家石油化工发展水平的标志
C.
酸雨的形成主要由于森林遭到乱砍滥伐,破坏了生态环境
D.
工业上常用电解法冶炼Na、Mg、Al等活泼金属
【简答题】图中,甲表示某草原生态系统的食物网,乙表示该生态系统中构成一条食物链的四种生物所占的数量关系,丙表示该生态系中某些生物间的关系。请据图分析回答: (1) 图甲只表示出了该生态系统的部分生物,没有表示出的生物成分是 __________ ;此生态系统中, ____________ 是沿着食物链和食物网流动的。 (2) 图乙中, a 、 b 、 c 、 d 构成了图甲中含鼠的一条食物链,如果某有毒物质...
【简答题】以含有Al 2 O 3 、Fe 2 O 3 等杂质的铬铁矿[主要成份为Fe(CrO 2 ) 2 ]为主要原料生产重铬酸钠晶体( Na 2 Cr 2 O 7 ·2H 2 O)的主要工艺流程如下: 己知:铬铁矿在空气中与纯碱煅烧生成Na 2 CrO 4 和一种红棕色固体,同时释放出CO 2 气体,同时A1 2 O 3 +Na 2 CO 3 2NaAlO 2 +CO 2 ↑。请回答: (1)在铬铁矿Fe...
【简答题】以铬铁矿[主要成分为Fe(CrO 2 ) 2 ,含有Al 2 O 3 、Fe 2 O 3 、SiO 2 等杂质]为主要原料生产重铬酸钠晶体 (Na 2 Cr 2 O 7 ·2H 2 O)的主要工艺流程如下 (1)煅烧过程中,铬铁矿中的Al 2 O 3 与纯碱反应的化学方程式为___________________ (2)酸化时发生的反应为2CrO 4 2- +2H + Cr 2 O 7 2- +H...
【判断题】祖冲之熟练的掌握了泰勒公式。()
A.
正确
B.
错误
【简答题】(12分)硫酸被人们誉为“化学工业之母”,在国民生产中发挥着重要作用,硫酸的产量是衡量一个国家化学工业水平的标志。工业上生产硫酸包括三步: (1)第一步,在沸腾炉中煅烧黄铁矿,反应如下:4FeS 2 +11O 2 8SO 2 +2Fe 2 O 3 ,该反应的氧化产物是 ,当生成8 mol SO 2 时转移电子的物质的量为 。 (2)第二步,在接触室中发生如下反应:2SO 2 +O 2 2SO 3 ...
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