根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。Secret codes (密码)keep messages private。Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer.People have used secret codes for thousands of years. 36 Code breaking never lags(落后) far behind code making. The science of creating and reading coded messages is called cryptography.There are three main types of cryptography. 37 For example, the first letters of “My elephant eats too many eels” Spell out the hidden message “Meet me.”38 You might represent each letter with a number, For example, Let’s number the letters of the alphabet, in order, from 1 to 26. If we substitute a number for each letter, the message “Meet me” would read “13 5 20 13 5.”A code uses symbols to replace words, phrases, or sentences. To read the message of a real code, you must have a code book. 39 For example, ”bridge“ might stand for “meet” and “out” might stand for “me.” The message “bridge out” would actually mean “Meet me.” 40 However, it is also hard to keep a code book secret for long. So codes must be changed frequently. 39()
A. It is very hard to break a code without the code book.
B. In any language, some letters are used more than others.
C. Only people who know the keyword can read the message.
D. As long as there have been codes, people have tried to break them.
E. You can hide a message by having the first letters of each word spell it out.
F. With a code book, you might write down words that would stand for other words.
G. Another way to hide a message is to use symbols to stand for specific letters of the alphabet.
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。DA new collection of photos brings an unsuccessful Antarctic voyage back to life.Frank Hurley’s pictures would be outstanding----undoubtedly first-rate photo-journalism---if they had been made last week. In fact, they were shot from 1914 through 1916, most of them after a disastrous shipwreck(海滩), by a cameraman who had no reasonable expectation of survival. Many of the images were stored in an ice chest, under freezing water, in the damaged wooden ship.The ship was the Endurance, a small, tight, Norwegian-built three-master that was intended to take Sir Ernest Shackleton and a small crew of seamen and scientists, 27 men in all, to the southernmost shore of Antarctica’s Weddell Sea. From that point Shackleton wanted to force a passage by dog sled(雪橇) across the continent. The journey was intended to achieve more than what Captain Robert Falcon Scott had done. Captain Scott had reached the South Pole early in 1912 but had died with his four companions on the march back.As writer Caroline Alexander makes clear in her forceful and well-researched story The Endurance, adventuring was even then a thoroughly commercial effort. Scott’s last journey, completed as he lay in a tent dying of cold and hunger, caught the world’s imagination, and a film made in his honor drew crowds. Shackleton, a onetime British merchant-navy officer who had got to within 100 miles of the South Pole in 1908, started a business before his 1914 voyage to make money from movie and still photography. Frank Hurley, a confident and gifted Australian photographer who knew the Antarctic, was hired to make the images, most of which have never before been published. What do we know about the photos taken by Hurley?()
A. They were made last week
B. They showed undersea sceneries
C. They were found by a cameraman
D. They recorded a disastrous adventure
2016年是莎士比亚逝世400周年,为纪念这位戏剧大师,某剧院策划了系列演出活动,请为该活动拟写一条宣传语。
阅读下面的文字,完成(l)~(4)题。(25分)玻璃贾平凹约好在德巴街路南第十个电杆下会面,去了却没看到他。我决意再等一阵,踅进一家小茶馆里一边吃茶一边盯肴电杆。旁边新盖了一家酒店,玻瑞装嵌,还未完工,正有人用白粉写“注意玻璃”的字样。吃过一壶茶后,我回到了家。妻子说王有福来电话了,反复解释他是病了,不能赴约,能否明日上午在德巴街后边的德比街再见,仍是路南第十个电杆下。第二天我赶到德比街,电杆下果然坐着一个老头,额头上包着一块纱布。我说你是王得贵的爹吗,他立即弯下腰,说:我叫王有福。我把得贵捎的钱交给他,让给娘好好治病。他看四周没人,就解开裤带将钱装进裤衩上的兜里,说:“我请你去喝烧酒!”我谢绝了。他转身往街的西头走去,又回过头来给我鞠了个躬。我问他家离这儿远吗,他说不远,就在德巴街紧南的胡同里。我说从这里过去不是更近吗,老头笑了一下,说:“我不走德巴街。”他不去德巴街,我却要去,昨日那家茶馆不错。走过那家酒店,玻璃墙上却贴出了一张布告——昨天因装修的玻璃上未作标志,致使一过路人误撞受伤。敬请受伤者速来我店接受我们的歉意并领取赔偿费。我被酒店此举感动,很快想到王有福是不是撞了玻璃受的伤呢,突然萌生了一个念头:既然肯赔偿,那就是他们理屈,何不去法院上告,趁机索赔更大一笔钱呢?我为我的聪明得意,第二天便给王有福打电话,约他下午到红星饭店边吃边谈。红星饭店也是玻璃装修,我选择这家饭店,是要证实他是不是真的在酒店挂伤的。他见了我,肿胀的脸上泛了笑容,步履却小心翼翼,到了门口还用手摸,证实是门口了,一倾一倾地摇晃着小脑袋走进来。“我没请你,你倒请我了!”他说。“一顿饭算什么!”我给他倒了一杯酒,他赶忙说:“我不敢喝的,我有伤。”“大伯,你是在德巴街酒店撞伤的吗?”“你……那酒店怎么啦?”“这么说,你真的在那儿撞的!”“这……”老头瓷在那里,似乎要抵赖,但脸色立即赤红,压低了声音说:“是在那儿撞的。”一下子人蔫了许多,可怜得像个做错事的孩子。“这就好。”我说。“我不是故意的。”老头急起来。“我那日感冒,头晕晕的,接到你的电话出来,经过那里,明明看着没有什么,走过去,咚,便撞上了。”“你撞伤了,怎么就走了?”“哗啦一声,我才知道是撞上玻璃了.三个姑娘出来扶我,血流了一脸,把她们倒吓坏了,要给我包扎伤口,我爬起来跑了。我赔不起那玻璃呀!”“他们到处找你哩。”“是吗?我已经几天没敢去德巴街了,他们是在街口认人吗?”“他们贴了布告……”老头哭丧下脸来,在腰里掏钱,问我一块玻璃多少钱。我嘿嘿笑起来。“不是你给他们赔,是他们要给你赔!”“赔我?”“是赔你。”我说,“但你不要接受他们的赔偿,他们能赔多少钱?上法院告他们,索赔的就不是几百元几千元了!”老头愣在那里,一条线的眼里极力努出那黑珠来盯我,说:“你大伯是有私心,害怕赔偿才溜掉的,可我也经了一辈子世事,再也不受骗了!”“没骗你,你去看布告嘛!”“你不骗我,那酒店也骗我哩,我一去那不是投案自首了吗?”“大伯,你听我说……”老头从怀里构出一卷软沓沓的钱来,放在桌上:“你要肯认我是大伯,那我求你把这些钱交给人家。不够的话,让得贵补齐。我不是有意的,真是看着什么也没有的,谁知道就有玻璃。你能答应我,这事不要再给外人说,你答应吗?”“答应。”老头眼泪花花的,给我又鞠了下躬,扭身离开了饭桌。我怎么叫他,他也不回头。他走到玻璃墙边,看着玻璃上有个门,伸手摸了摸,没有玻璃,走了出去。我坐在那里喝完了一壶酒,一口莱也没吃,从饭馆出来往德巴街去。趁无人理会,我揭下了那张布告:布告继续贴着,只能使他活得不安生。顺街往东走,照相馆的橱窗下又是一堆碎玻璃,经理在大声骂:谁撞的,眼睛瞎了吗?!我走出了狭窄的德巴街。(有删改) “我”在小说中的主要作用是什么?请简要分析。