2020年12月17日↑时59分,嫦峨五号返回器携带月球样品成功着陆。历史将使命赋予嫦娥五号,嫦娥五号也 ,接过中国人探月梦想的接力棒,完美地创造了又一奇迹。正如周家航天局副局长冠抵华所说“嫦娥五量任务的完成创造了五项“中国首次。”
发射升空。抵达几球。采月球物质。由月面点大起飞,再从月球轨道派回地球……20余天里,嫦娥五号的每一步都牵动人心,每一个动作又让人 。这一代表人类时隔40多年后再次完成月球“挖土”的壮举,点亮着航天人无数个不眠之夜,折射出中国创新的熠熠星辉。( )如此复杂困难的太空探索计划,即便目标是带回2公斤月球样品,但 , 带回样品就已是成功。人们惊叹,来自月球的小小石头却能够代表一个国家科技进步的程度。同样,嫦娥五号在月球上展开重仅12克的五星红旗。这一抹闪耀月面的“中国红”也映照出科技底气。
作为国内 最为复杂的航天器之一,嫦娥五号探测器则烦利实施无人月面取样并成功返回。国际顶尖科学期刊“自然”刊文称。嫦娥五是可以填补科学家对月球火山活动研究的一个重要空白。成功着陆的嫦娥五号返回器,标志着我国具备了地月往返的能力,体现了“绕、落、回”三步走规划完美收官,为我国未来月球与行星探测奠定了坚实基础。
(1)证明:函数f(x)在(0,+∞)上也是增函数;
(2)若函数g(θ)的最大值为4,求m的值;
(3)若记集合M={m|任意的0≤θ≤ , g(θ)>0},N={m|任意的0≤θ≤
, f[g(θ)]<0},求M∩N.
在一档文化传承类综艺节目上,一歌手一开嗓子就是用中文夹杂着英文演唱。评委老师对其英文演唱提出质疑:你是中国人,对于这种有关非物质文化遗产的综艺节目,你应该唱中国纯正的传统音乐,为何要夹杂着英语?歌手反驳道:“听众不仅有中国人,还有外国人。”对于此事,你怎么看?请结合自己的认识和理解,联系现实,谈谈你的看法。
要求:自主确定立意,确定文体,确定标题;不要脱离材料内容及含意的范围作文,不要套作,不得抄袭。
周纡,字文通,下邳徐人也。为人刻削少恩,好韩非之术。永平中,补南行唐长。到官,晓吏人曰:“朝廷不以纡不肖,使牧黎民,而性仇猾吏,志除豪贼,且勿相试!”遂杀县中尤无状者数十人,吏人大震。
纡廉洁无资,常筑墼①以自给。肃宗闻而怜之,复以为郎,再迁召陵侯相。廷掾惮纡严明,欲损其威,乃晨取死人断手足,立寺门。纡闻。便往至死人边,若与死人共语状。阴察视口眼有稻芒,乃密问守门人曰:“悉谁载藁②入城者?”门者对:“唯有廷掾耳。”又问铃下③:“有疑吾与死人语者不?”对曰:“廷掾疑君。”乃收廷掾考问,具服“不杀人,取道边死人”。后人莫敢欺者。
征拜洛阳令。下车 , 先问大姓名主,吏数闾里豪强以对。纡厉声怒曰:“本问贵戚若马、窦④等辈,岂能知此卖菜佣乎?”于是部吏望风旨,争以激切为事。贵戚跼蹐⑤,京师肃清。帝知纡奉法疾奸,不事贵戚,然苛惨失中,数为有司所奏,遂免官。后为御史中丞。
和帝即位,太傅邓彪奏纡在任过酷不宜典司京辇免归田里后窦氏贵盛窦笃兄弟秉权睚眦宿怨无不僵仆。纡自谓无全,乃柴门自守,以待其祸。然笃等以纡公正,而怨隙有素,遂不敢害。
永元五年,复征为御史中丞。诸窦虽诛,而夏阳侯瑰犹尚在朝。纡疾之,乃上疏曰:“案夏阳侯瑰,本出轻薄,志在邪僻,学无经术,而妄构讲舍,外招儒徒,实会奸桀。轻忽天威,侮慢王室,又造作巡狩封禅上书,惑众不道,当伏诛戮。”会瑰归国 , 纡迁司隶校尉。六年夏,旱,车驾自幸洛阳录囚徒,二人被掠生虫,坐左转骑都尉。七年,迁将作大匠。九年,卒于官。
(选自《后汉书·酷吏列传第六十七》,有删改)
(注)①墼(jī):没有烧过的砖坯。②藁(gǎo):稻、麦的秸秆。③铃下:指属下。④马、窦:指马氏、窦氏,均是皇亲国戚,也属于大姓名主。⑤跼蹐:jújí亦作“跔脊”,形容谨慎恐惧的样子。
①朝廷不以纡不肖,使牧黎民,而性仇猾吏,志除豪贼,且勿相试!
②纡自谓无全,乃柴门自守,以待其祸。然笃等以纡公正,而怨隙有素,遂不敢害。
Planning Your Writing
Kelli Plasket is a reporter at TIME for Kids.
Question:How do you get story ideas?
Answer:I read newspapers, news sites and watch TV news daily. I look for stories or topics that would interest kids. I also talk to the people I meet about what's on their minds and what interests them. You never know where you will find a good story!
Suzanne Zimbler is a senior editor at TIME for Kids.
Question: How do you plan and organise a story?
Answer: Once I've learned everything that can be a topic, I decide what information is most important to include. I break down that information into different sections. Then I consider what order those sections should appear in. What do the readers need to know first in order to understand the rest of the story? How will I connect one section to the next? Sometimes, once I've drafted the story, I'll realise that another order works better than my original plan. That's OK. You can always switch paragraphs around and see how they read in a different order. It's part of the revision process.
Andrea Delbanco is a senior editor at TIME for Kids.
Question: How do you complete your writing assignments on time?
Answer: I love working with a deadline! I have a much easier time getting organised when I know that my time to work on an assignment is limited. First, I make a mental map of all of the stages: doing research, taking notes, writing a draft and revising. Then, I make a timeline of how long I think I will need to complete each part. I always hope to finish with enough time to take a break and then look at my writing with fresh eyes.
—Because they have (腐烂).