等物质的量的 SO₂和SO₃下列关系错误的是（    ）

任务型阅读

    Less is more. This is why we say: reduce things by half instead of doubling them, relax instead of stressing, and slow down instead of speeding up. Apply these principles(原则) in your everyday life. You will then find yourself well along on your journey to simplification.

Separate Your Actions

    When you concentrate on one task, you find you have energy that you didn't even know you had. Just imagine: you have to carry two heavy pigs over 100 yards. If you carry two, it will take forever. But if you tie one pig in a place, pick up the other, gather all your strength and make a dash for the finish line, pause for a moment, run back and get the other one, and carry the second pig to the finish line, then you can be sure of success.

Say “No” Firmly

    If you have the feeling that 24 hours per day are not enough for all the things you need to do, then it's not because the day has too few hours, but because you have too many activities. The solution is equally simple: say no to accept so much work in your private life or your working life.

Allow Yourself to Be Weak

     “I can deal with stress” is regarded as a positive statement in the world of work. People who can deal with stress are given more and more to — until one day they break.

Pay careful attention to the signs that tell you that you are under more stress than you can deal with. If you become ill, or your work efficiency decreases, change your life goals. Say quite openly, “I can't manage that.”

Stop Expecting Everything to Be Perfect

     “If only I were slimmer, more beautiful, richer, more clever, then I would be happier.” This is a dream that makes a lot of people ill, and unhappy. Life is imperfect. Only those who accept this reality can lead a really full life.

    Of course there are activities in which errors are dangerous: driving a car; crossing the road. But life doesn't entirely have these things. In among them there is possibility that you may make small and large mistakes.

Escape Now and Then

    Successful people all have their own places where they can be left alone in order to work. Find out which places improve your creativity. For me it's the train. When I know that I'm going to be traveling for four hours without phone calls or people knocking on my door, I find my mind is free and I can read or write articles.

How to your life
Theme	Less is more, which helps you a simpler life.
to apply	Concentrate on one task, and you will find you are more than you know and achieve more easily.
	to accept too much work in your life.
	Change life goals if you are under more stress than you can .
	yourself to make mistakes since life is not perfect. , you will be unhappy.
	Find out where you can be left to improve your creativity.

根据问题填空：

在一定温度和压强下，1体积X₂气体与3体积Y₂气体化合生成2体积气体化合物，则该气体化合物的化学式为（   ）

定义运算 ， 如.已知 ， ， 则（ ）.

阅读下面的材料，根据要求写一篇文章。

我们曾如此渴望生命的波澜，到最后才发现：人生最曼妙的风景，竟是内心的淡定与从容……我们曾如此期盼外界的认可，到最后才知道，世界是自己的，与他人毫无关系！——杨绛

以上材料触发了你怎样的思考和感悟？请据此写一篇文章。

要求：自选角度，自拟标题；文体不限(诗歌除外)，明确文体；不少于800字；不得抄袭，不得套作。

定义运算=ad﹣bc，则复数z符合条件=4+2i，求复数z．

已知=ad﹣bc，则+++…+=（　　）

根据短文内容，从短文后的七个选项中选出五个最佳选项填入空白处。

    As you're busy with your studies, the weeks during the Spring Festival can be a time when training and healthy eating plans go out of the window. But you can continue running and avoid weight gain during the holiday season.

Pick a race

    Having a race on your calendar is a motivation to keep running during the holiday. Check our active.com or Running in the city for events near you.

Don't skip breakfast

    If you're going to a holiday party in the evening, don't make the mistake of skipping breakfast. You may think you're saving calories for later.

Bring your own healthy dishes

    Chances are that most of the dishes at holiday gatherings are going be high in taste and calories. Bring your own healthy appetizers to the party. The host will appreciate it, and you know where will be at least one wise choice on the buffet table.

    If you are heading to an evening event, eat regular meals and snacks every few hours until party time. You won't arrive at the party ready to attack appetizers. Make sure you include fiber at each meal because it keeps you full longer.

Plan your runs

    It's easy to say that you'll keep running regularly during the holiday season, but sticking to it requires a strategy. Schedule your runs like appointments, so you make them the first thing during a busy week.

A. Treat yourself B. Eat small meals C. Try some or all of these strategies. D. In fact, it may lead to overeating later in the day. E. Buy yourself a gift of some new running shoes and clothes. F. If you have runs scheduled, you are more likely to get them done. G. Once you choose one that is in a few weeks, set a plan and stick to it.

在标准状况下，1L的密闭容器中恰好可盛放n个N₂分子和m个H₂分子组成的混合气体，则阿伏加德罗常数可近似表示为（   ）

改错题。

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(∧), 并在此符号下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改： 在错的词下划一横线, 并在该词下面写出修改后的词。

注意：1）、每处错误及其修改均仅限一词；

2）、只允许修改10处, 多者(从第11处起) 不计分。

    One day, when I am walking in my neighborhood after supper, I saw wallet on the ground. I picked it up or opened it. I found there were several $100 bills in it but I didn't know whom it belonged for as there was no information about the owners. Just as I was wondering how to deal with it, I saw a man look for something. I went to him and asked how he was trying to find. He said he had been lost his wallet. Then I asked him how many it was in it. I returned it to him after making sure the wallet was him. He couldn't thank me enough.

四种有机物的结构简式如下图所示。下列说法中错误的是(   )

At the meeting the young man (提出)the plan. I (与……详细讨论) the members of the committee. Most of them (同意)it. Tom (有……天赋) communicating with strangers, and he never (看不起) others, so I (委派)him to carry out the plan. It turned out that he (遵守诺言) and everything went well.

短文改错

文中共有10处语言错误, 每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加: 在缺词处加一个漏字符号(∧), 并在其下面写出该加的词。

删除: 把多余的词用斜线(＼)划掉。

修改: 在错的词下划一横线, 并在该词下面写出修改后的词。

注意: 1）. 每处错误及其修改均仅限一词；

2）. 只允许修改10处, 多者(从第11处起)不计分。

    Zhou Yang will never forget his first assignment for a newspaper journalist. After he started to work, he had discussion with his new boss and it was to strongly influence her life. When he asked his boss that whether he could go out on a story at once, the boss had him work with a colleague. The boss also told him that if he wants to acquire all the informations he needed, he must pay attention to the detailed facts.  Meanwhile, he had to prepare for the next question depended on which the person said. And if the person being interviewed agreed, he could use a recorder to make sure he got all the facts straightly. At last the boss said only by knowing all the tricks of the trade could he be a good reporter.

下列各句中，加点虚词的意义和用法相同的一项是（    ）

改错题。

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共 有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(Λ)，并在其下面写出该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：

1）．每处错误及其修改均仅限一词；

2）．只允许修改10处，多者(从第11处起)不计分。

    Last month the Students' Union of our school organize an English Speech Competition. At first I didn't show some interest and wasn't very much confident. Then my English teacher Mr Smith encouraged me. Inspiring by my teacher, I signed up for the competition and made fully preparations for it. Two weeks later the time I had been looking forward to coming and it was his turn. Glancing at my teacher's smiling face, I built up my confidence and I was one of the winner.

    But my teacher's encouragement, I couldn't have won the first prize. I'm proud of Mr Smith or the wonderful experience.

阅读下面的文字，完成各题。

马脚穿鞋

莫言

我估计像我这个年纪的农村出身的人，都看到过给马或者给骡子挂掌的场面。那场面很精彩，很刺激，看一次就能记一辈子。挂马掌的人，基本上都是健壮、精干的男人，因为这活儿，既需要技术，又需要胆量。因为并不是每匹骡马都是好脾气，它一旦不高兴，一尥蹶子，就够人受的。马掌匠大多数都是铁匠，需要根据骡马的蹄子，随时修改蹄铁的大小。大多数的马掌匠都是在铁匠铺子里等活儿。他们的铺子前，用五根粗大的圆木，交叉竖起一个木架子。他们将骡子或者马弄到架子下，用两根结实的帆布带子，兜在骡子或马的前后腿之间，然后将它吊起来，这样，无论多么暴烈的骡、马，都失去了尥蹶子的能力。

我要说的是一个犹如凤毛麟角一样稀罕的下乡找活干的马蹄匠。下乡找活干，就意味着没有了器械的保护，马蹄匠要跟骡、马亲密接触，风险很大。单纯因为这，还不值当我使用“凤毛麟角”这样的高级词，我之所以使用这个词，是因为这个马蹄匠是个女的，而且是我的表姐。

我这个表姐身材并不粗壮，甚至还可以说她有几分苗条。她也不丑，甚至还可以说她比较漂亮。就是这样一个人儿，学了这样的手艺。我堂舅是个铁匠，也是马蹄匠。我堂舅并不愿意让自己的独生女儿继承自己的手艺。我表姐却很喜欢这活儿，因为喜欢，所以上心，我堂舅没怎么教，她自己就看会了。

我表姐在我们村子里大显身手赢得了高度赞誉那次，是给我们第二生产队里那匹性情极为暴烈的骡子上蹄子那个中午。那时我堂舅已经很老了，只能给我表姐当助手。村子里的人听说来了一个女马蹄匠给第二生产队的疯骡子上蹄铁，全都跑来看热闹。

我们第二生产队那匹疯骡子，是真疯。它能同时飞起两条后腿踢人，又能十分灵巧地飞起一条后腿踢狗。它还能站立起来，用两个前蹄，像拳击手一样擂人。当然，用嘴咬人，它也十分擅长。我们队长和会计贪便宜把这家伙买回来，简直是买回了一头猛兽。每次要将它套进车辕，都需要动员全队的壮劳力。一旦把它套进车，它就拉着车狂奔，速度之快，我说出来大家也不会相信。也就是说，这头疯骡子，身上有不可思议的神奇的力量，它使我们队里马车的速度大大提高。有一次它从县城给公社、供销社拉了一车煤，蛟河农场的一辆捷克产的胶轮拖拉机趾高气扬地超越了它。它野性发作，嗷嗷地叫着，拉着车就追，车上的煤被颠得纷纷落地。拖拉机司机刚开始不以为意，呼喊了一些嘲笑骡子的口号，骡子大怒，狂追不止，车越跑越轻，速度越来越快。拖拉机驾驶员一时慌乱，竟然把车开到了路沟里，差点出了人命。话说我堂舅把疯骡子拴在街边一棵柳树上，稍一懈怠，就被骡子一口咬住了胳膊。我表姐一个箭步冲上去，对着骡子的耳朵眼儿一声尖叫，那骡子像当头挨了一棍似的，两条前腿一弯就跪下了。我表姐迅速地用细麻绳在它的上唇拴起了一个疙瘩，然后将连接着细麻绳的粗绳子扔到树杈上，往下一拉，那骡子就乖乖地把头仰了起来。表姐将绳子交给我堂舅，我堂舅把绳子死劲往下一扽，那骡子痛苦得浑身颤抖，再也没有心思飞起蹄子尥人了。

我表姐从容不迫地给疯骡子剔除了旧蹄铁，用扁铲给它修平了趾甲，然后给它钉上了合适的新蹄铁。四个蹄子全部弄好，花费了大概半个小时，真是又快又好，观者无不称赞。一切收拾妥当后，我表姐将骡子上唇的麻绳松开，还轻松地拍了拍它的脑门。我堂舅将缰绳递给生产队的饲养员。众人飞快地散开，等待着疯骡子的疯狂。但奇怪的是，我们队里的疯骡子竟然没有折腾，它跟在饲养员身后，乖乖地走着，仿佛一个刚穿上新鞋的小媳妇，个头也高了两寸。

过了几年，在添油加醋的传说中，我表姐成了武功高强的女侠，那疯骡子，成了她仗义行侠时的坐骑。这就是另外一个故事了。

（有删改）

阅读理解

    A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

    “It's extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.

    They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it's connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

    While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers' fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.

    Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”

—I don't think I can go any further.

— ______. You can do it if you keep trying!

下列叙述正确的是（   ）