2#风井更换主扇期间末端水泵房应急措施

Unit31.It’s import‎a nt to know your object‎i ves on a busine‎s s trip,and to set out with those goals in mind and how toaccomp‎l ish them.But along the way,someth‎i ng rather‎amazin‎g happen‎s when you travel‎on busine‎s s.You may go to some pretty‎amazin‎g places‎,and get chance‎s to see things‎you would have never sought‎out on your own.翻译：了解出差的目‎的，出发时牢记目‎标并清楚如何‎达成目标，这些都是很重‎要的。

但在途中也会‎发生一些有趣‎的事情。

你可能会去到‎一些令人惊叹‎的地方，有机会看到你‎自己可能永远‎都发现不了的‎东西。

‎s s.There are times when you have comple‎t ed your work and 2.Busine‎s s trips don’t have to be all about busine,attrac‎t ions and good food.The first resour‎c e to find out what is really‎you can take in some of the local color‎n g is the locals‎. If you go to a farawa‎y town to conduc‎t busine‎s s cool to enjoy in the city or town you are visitiwith a partne‎r or vendor‎, they are often more than happy to show you the lay of the land and what is fun to see and do in the town.翻译：商务旅行不必‎都是生意。

1.2用英文怎么写2的英文是two。

词汇分析音标：英[tuː] 美 [tu]释义：n. 两个adj. 两个的num. 二短语Two Whatevers 两个凡是Two Women 烽火母女泪；两个女人；战地两女性；两女Two Cops 特警冤家；两个警察；锄暴特警；两个刑警Two Soldiers 两个士兵；两名士兵；同胞兄弟；幽默英语故事两名士兵Two Lamps 两盏巨灯Perfect Two 新天生一对；天生一对；咸菜贤才大贤永才例句1、They teamed Class One with Class Two.他们将一班和二班编成一队。

我们用两个师包围了这座城市。

3、We talked about two hours, but he hedged over my questions.我们用两个师包围了这座城市。

4、Working together for two months welded them into a group.在一起工作两个月使他们形成了一个团体。

5、He died two months ago.他两个月前去世了。

2.2的英文怎么写2的英文是two。

two英 [tu：] 美 [tu]n. 两个；两个东西；两点钟；一对；adj. 两个的；我同；num. 两个；第二；二；双语例句1. It's a long way to go for two people in their seventies.对于两个七十几岁的人来说，这段路太远了。

他在那儿的时候体重下降了2英石。

3. I undid the bottom two buttons of my yellow and grey shirt.我解开了自己黄灰相间的衬衫上最下面的两个纽扣。

4. It would be difficult to find two men who were more dissimilar.很难找到彼此间差异更大的人了。

2氧化镁化学式《2氧化镁化学式》嘿，同学们！今天咱们来好好唠唠这个氧化镁的化学式MgO，虽然看起来就这么简单的两个字母和一个数字，但这里面包含的化学知识可不少呢！首先，咱们得说说这个氧化镁是怎么形成的，这就涉及到化学键啦。

化学键就像是原子之间的小钩子，把原子们紧紧地连在一起。

在氧化镁里呢，是离子键在起作用。

咱可以把离子键想象成带正电和带负电的原子像超强磁铁般吸在一起。

镁原子（Mg）它容易失去2个电子，就变成了带2个正电荷的镁离子（Mg²⁺），而氧原子（O）呢，它特别想得到2个电子，于是就变成了带2个负电荷的氧离子（O²⁻）。

这一个带正电，一个带负电，就像磁铁的正负极一样，“嗖”的一下就吸到一块儿了，形成了氧化镁（MgO）。

再来说说化学平衡，这就好比是一场拔河比赛。

把反应物看成是一队人，生成物看成是另一队人。

在反应开始的时候，反应物这边人多力量大，就一个劲儿地往生成物那边转化，这就是正反应。

但是随着生成物这边的人越来越多，它们又会往反应物那边转化，这就是逆反应。

当两边转化的速度一样快的时候，就像拔河两边力量相等了，谁也拉不动谁了，这时候就是达到了化学平衡状态，反应物和生成物的浓度也就不再变化了。

不过呢，这个平衡也不是一成不变的，如果我们改变一些条件，就像拔河的时候一方突然来了几个帮手，这个平衡就会被打破，然后又会重新建立新的平衡。

那分子的极性又是什么呢？咱们可以把分子想象成小磁针。

就拿水来说，水是极性分子，它就像一个小磁针一样，氧一端像磁针南极带负电，氢一端像北极带正电。

而二氧化碳就不一样了，二氧化碳是直线对称的分子，就像一个两边一样重的扁担，两边的力量相互抵消了，所以它是非极性分子，就没有像小磁针那样有一端带正电一端带负电的情况。

接着讲讲配位化合物吧。

配位化合物就像是一场聚会，中心离子就是这个聚会的主角，而配体呢，就像是来参加聚会的小伙伴，不过这些小伙伴有个特殊的本事，就是能提供孤对电子来和主角共享。

以前我从未意识到日常的生活起居是多么重要，如穿戴整齐去上班，按时就寝。以前我从未想过自己会那么依赖同事做伴。我开始理解为什么长时间的失业会那么伤人，为什么一个人的生活缺少了外部支持的日常计划就会导致吸毒、犯罪、自杀率的增长。
11 To restore balance to my life, I force myself back into the real world. I call people, arrange to meet with the few remaining friends who haven't fled New York City. I try to at least get to the gym, so as to set apart the weekend from the rest of my week. I arrange interviews for stories, doctor's appointments -- anything to get me out of the house and connected with others.
13 However, I do not want to overstate my case. There is enormous creativity to be found in Chinese scientific, technological and artistic innovations past and present. And there is a danger of exaggerating creative breakthroughs in the West. When any innovation is examined closely, its reliance on previous achievements is all too apparent (the "standing on the shoulders of giants" phenomenon).

周边地面——对没有地下室的建筑指底层房间外墙内侧两米范围内的地面。

对有地下室埋墙的建筑，指从室外地面和埋墙的交线算起向下两米内为周边地面。

非周边地面——对没有地下室的房间指底层地面中周边地面以外的部分。

有地下室埋墙的建筑，非周边地面指埋墙和地面面积的和减去从室外地面和埋墙交线算起向下两米的面积。

关于周边地面和非周边地面的几点说明1．周边地面和非周边地面的定义周边地面指距外墙内表面2m以内的地面，其余部分划为非周边地面。

位于室外地面以下的外墙（地下室外墙）应从与室外地面相平的墙壁算起，往下2m范围内为周边地面，其余部分划为非周边地面。

2．节能标准中对周边地面和非周边地面传热阻的计算《民用建筑节能设计标准》（采暖居住部分）JGJ26-95和《公共建筑节能设计标准》GB50189-2005对周边地面和非周边地面热阻采用了不同的计算方法，应分别对待。

A) 居住建筑：换热阻计算依据来源于《供热工程》（贺平孙刚编著）。

由于室内热量通过地面传到室外的路程长短不同，即热阻值不同，靠近外墙的室内地面，距离室外路程短，热阻值小，传热量大，反之远离外墙的地面热阻值大，传热量小，离外墙8m以远的地面，传热量基本不变。

基于上述情况，在工程上一般采用近似方法计算，把地面沿外墙平行的方向分成四个计算地带（每2m为一个地带，8m以外地面按第四地带考虑），如图1示。

1) 对于贴土非保温地面（组成地面的各层材料导热系数λ都大于1.16W/m?℃），各地带的传热系数和换热阻如下：周边地面传热系数限值为0.52 W / m2·℃地区，考虑到非保温地面第一地带（周边地面）的传热系数为0.47 W / m2·℃，小于限值0.5 2W / m2·℃,可不做保温；非周边地面（第二、三、四地带）不做保温时传热系数最大值为0.23 W / m2·℃,小于限值0.3 W / m2·℃，同样也能满足非周边地面限值的要求。

➣ Conclude the analysis by briefly reviewing the major steps in the process, or by reinforcing the thesis, or by summarizing the results of the process or by explaining its significance, but a short process paper may not need a formal conclusion.
No mistakes
Questions to think about Is this a directive or informative process
analysis? It is an informative process analysis giving the history of Liquid Paper. What is the central idea of the essay? Is the thesis statement presented or implied? The central idea is how Liquid Paper was invented and how it became a big business. The thesis statement is implied.
What is Process Analysis?
• A process analysis(PA) is a step-by-step explanation of how to do something , or how something works/ is done or made, or how something happened.

2的书写方法在日常生活中，我们经常会涉及到数字2的书写。

无论是在学习、工作还是生活中，正确的书写方法都是非常重要的。

下面，我们就来详细了解一下数字2的书写方法。

首先，我们要明确数字2的基本形态。

数字2是阿拉伯数字中的一个，它的基本形态是一个弯曲的弧线，上面有一个小圆圈。

这是我们最常见的数字2的书写形式，也是最标准的书写形式。

在书写时，我们需要注意保持数字2的整体形状，保持圆润、匀称，不要出现歪斜、变形等情况。

其次，我们要注意数字2的书写顺序。

在书写数字2时，一般是从上到下、从左到右的书写顺序。

首先画出数字2的上半部分的曲线，然后再画下半部分的曲线，最后在上半部分的曲线上方画一个小圆圈。

这样的书写顺序可以帮助我们更好地掌握数字2的书写方法，保持数字的整体形状和美观度。

除了基本形态和书写顺序外，我们还需要了解数字2的书写规范。

在正式的文件、文书、报告中，数字2的书写需要符合一定的规范。

一般来说，数字2要与其他数字保持一致的字体、大小和风格，以保持整个文档的统一性和美观度。

在手写时，我们也需要注意字迹工整、规范，避免出现潦草、模糊的情况。

此外，数字2的书写还需要注意与其他数字的区分。

在一些情况下，数字2可能会与字母z混淆，因此在书写时要特别小心，确保数字2的书写清晰可辨，不会引起误解。

总的来说，正确的数字2的书写方法对我们的学习、工作和生活都是非常重要的。

通过掌握数字2的基本形态、书写顺序和书写规范，我们能够更好地书写出整洁、规范的数字2，提高书写质量，避免出现错误和混淆。

希望大家能够重视数字2的书写方法，不断提升自己的书写水平，为自己的学习和工作增添亮点。

2021 年全国硕士研究生入学统一考试英语(二)试题Section I Use of EnglishDirections:Read the following text.Choose the best word(s) for each numberedblank and mark A,B, C or D on ANSWER SHEET 1. (10 points)Section Reading ComprehensionPart ADirections:Read the following four texts.Answer the questions below each textby choosing A, B, C, or D. Mark your answers on ANSWER SHEET 1.(40 points)Reskilling is something that sounds like a buzzword but is actually arequirement if we plan to have a future where a lot of would-beworkers do not get left behind.. We know we are moving into a period where the jobs in demandwill change rapidly, as will the requirements of the jobs that remain.Research by the WEF detailed in the Harvard Business Review, findsthat on average 42 per cent of the core skills " within job roles willchange by 2022. That is a very short timeline, so we can onlyimagine what the changes will be further in the future.The question of who should pay for reskilling is a thorny one Forindividual companies, the temptation is always to let go of workerswhose skills are no longer demand and replace them with thosewhose skills are.That does not always happen.AT&T is often given asthe gold standard of a company who decided to do a massivereskilling program rather than go with a fire-and-hire strategy.ultimatelyretraining 18,000employees. Prepandemic,othercompanies including Amazon and Disney had also pledged to createtheir own plans. When the skills mismatch is in the broader economythough, the focus usually turns to government to handle. Efforts inCanada and elsewhere have been arguably languid at best, and havegiven us a situation where we frequently hear of employers beggingfor workers even at times and In regionswhere unemployment is high.With the pandemic, unemployment is veryhigh indeed. In February,at 3.5 per cent and 5.5 per cent respectively,unemployment rates inCanada and the United States were at generational lows and workershortages were everywhere.As of May, those rates had spiked up to13.3 per cent and 13.7 per cent, and although many worker shortageshad disappeared, not all had done so. In the medical field, to take anobvious example,the pandemic meant that there were still clearshortages of doctors, nurses and other medical personnelOf course, it is not like you can take an unemployed waiter andtrain him to be a doctor in a few weeks, no matter who pays for it.Buteven if you cannot close that gap, maybe you can close others, anddoing so would be to the benefit of all concerned That seems to bethe case in Sweden, where the pandemickick-started a retrainingprogram where business as well as government had a role.Reskiling in this way would be challenging in a North Americancontext. You can easily imagine a chorus of"you cant do that,"because teachers or nurses or whoever have special skills, and usingany support staff who has been quickly trained is bound to end indisaster. Maybe. Or maybe it is something that can work 'ell inSweden,with its history of co-operation between business,labourand government, but not in North Americawhere our history is verydifferent. Then again, maybe it is akin to wartime, when extraordinarythings take place, but it is business as usualafter the fact.And yet, asin war the pandemic is teaching us that many things, including rapidreskilling, can be done if there is a will to do them. In any case,Swedens work force is now more skilled, in more things,and moreflexible than it was before.Of course, reskilling programs, whether for pandemic needs or thepostpandemic world,are expensive and at a time when everyonesbudgets are lean this may not be the time to implement them.Thenagain,extending income support programs to get us through thenext months is expensive, too, to say nothing of the cost of having aswath of long-term unemployed in thePOST-COVID years Given that,perhaps we should think hard about whether the pandemic canjump-start us to a place where reskilling becomes much more than abuzzword.B.PreDaacancies for the unemplovo teau.e1C. Retrain their cabin staff for better servicesD.finance their staff' s college educationText 2When Microsoft bought task managennent app Wunderlist andmobile calendar Sunrise in 2015, it pickecup two newcomers thatwere attracting considerable buzz in Silicon Valley. Microsoft' s ownOffice dominates the market for"productivity"software, but thestart-ups represented a new wave of technology designed from theground up for the smartphone world.Both apps, however, were later scrapped, after Microsoft said it hadused their best features in its own productsTheir teams of engineersstayed on, making them two of the many" acqui-hires"that thebiggest companies have used to feed their insatiable hunger for techtalent.To Microsoft’ s critics,the fates of Wunderlist and Sunrise areexamples of a remorseless drive by Big Tech to chew up anyinnovative companies that lie in their path. " They bought theseedlings and closed them down,"complained Paul Arnold, a partnerat San Francisco-based Switch Ventures, putting paid to businessesthat might one day turn into competitors. Microsoft declined tccomment.Like other start-up investors,Mr Arnold ' s own business oftendepends on selling start-ups to larger tech companies,though headmits to mixed feelings about the result:"I think these things aregood for me, if I put my selfish hat on. But are they good for theAmerican economy? I don' t know.”The US Federal Trade Commission says it wants to find the answerto that question. This week, it asked the five most valuable US techcompanies for information about their many smallacquisitions ovelthe past decade. Although only a research project at this stage, therequest has raised the prospect of regulators wading into early-stagetech markets that until now have been beyond their reach.Given their combined market value of more than $5.5tn,riflingthrough such small deals —many of them much less prominent thanwunderlist and Sunrise —might seem beside the point. Betweenthem,the five companies (Apple，Microsoft,Google，Amazon andFacebook) have spent an average of only $3.4bn a year on sub-$1bnacquisitions over the past five years a drop in the ocean compared with their massive financial reserves, and the more than$130bn of venture capital that was invested in the US last year.However, critics say that the big companies use such deals to buytheir most threatening potential competitcrs before their businesseshave a chance to gain momentum, in some cases as part of a"buyand kill" tactic to simply close them down31. What is true about Wuderlist and sunrise after their acquisitionsA.Their market values declined.B. Their tech features improvedC. Their engineers were retainedD. Their products werere-priced.32. Microsoft's critics believe that the big tech companies tend toA. ignore public opinionsB.treat new tech talent unfairlyC.exaggerate their product qualityD.eliminate their potential competitors.33. Paul Arnold is concerned that small acquisitions miahtA. harm the national economyB. worsen market competitionC. discourage start-up investorsD.weaken big tech companies.34. The US Federal Trade Commission intend toA. examine small acquisitionsB. limit Big Tech'’ s expansionC. supervise start-ups’operationsD.encourage research collaboration35. For the five biggest tech companies, their small acquisition haveA. brought little financial pressureB. raised few management challengesC.set an example for future dealsD. generated considerable profitsText 4we're fairly good at judging people based on first impressions,thin slices of experience ranging from a glimpse of a photo to afive-minute interaction, and deliberation can be not only extraneousbut intrusive. In one study of the ability she dubbed"thin slicing,"the late psychologist Nalini Ambady asked participants to watchsilent 10-second video clips of professors and to rate the instructor's overall effectiveness. Their ratings correlated strongly withstudents’ end-of-semester ratings.Another set of participants had tccount backward from 1,000 by nines as they watched the clips,occupying their conratings were just asaccurate, demonstrie social processing.Critically, anotherninute writing downreasons for their Jjudgment,betore giving the rating. Accuracydropped dramatically. Ambady suspected that deliberation focusedthem on vivid but misleading cues,such as certain gestures orutterances, rather than letting the complex interplay of subtle signalsform a holistic impression. She found similar interference whenparticipants watched 15-second clips of pairs of people and judgedwhether they were strangers, friends, or dating partners.Other research shows we' re better at detecting deception andsexual orientation from thin slices when we rely on intuition insteadof reflection.“It' s as if you' re driving a stick shift," says Judith Hall,a psychologist at Northeastern University,"and if you start thinkingabout it too much, you can' t remember what you’ re doing. But if yougo on automatic pilot, you' re fine. Much of our social life is like that."Thinking too much can also harm our ability to form preferencesCollege students' ratings of strawberry jams and college coursesaligned better with experts' opinions when the students weren'tasked to analyze their rationale. And peoplemadecar-buyingdecisions that were both objectively better and more personallysatisfying when asked to focus on their feelings rather than on details,but only if the decision was complex — when they had a lot o1information to process.Intuition ' s special powers are unleashed only in certaincircumstances. In one study, participants completed a battery of eighttasks, including four that tapped reflective thinking (discerning rules,comprehending vocabulary) and four that tapped intuition andcreativity (generating new products or figures of speech).Then theyrated the degree to which they had used intuition ( "gut feelings,""hunches,"“my heart”). Use of their gut hurt their performance onthe first four tasks,as expected, and helped them on the restSometimes the heart is smarter than the head.36. Nalini Ambabys study deals with_A. instructor student interactionB.the power of people's memoryC. the reliability of first impressionsD.People’s ability to influence others37. In Ambaby ' s study,rating accuracydropped whenparticipants_A. gave the rating in limited timeB. focused on specific detailsC. watched shorter video clipsD. discussed with on another38.Judith Hall mentions driving to mention that_A. memory can be selectiveB.reflection can be distractingC. social skills must be cultivatedD. deception is difficult to detect39. When you are making complex decisions, it is advisable to_A. follow your feelingsB. list your preferencesc. seek expert adviceD.collect enough data40.(缺)Directions:In the following article, some sentences have been removed. FotQuestions 41—45, choose the most suitable one from the list A—G tcfit into each of the numbered blanks.There are two extra choiceswhich do not fit in any of the blanks. Mark your answers on ANSWERSHEET 1.(10 points)A. Stay calmB. Stay humbleC. Don’t make judgmentsD.Be realistic about the risksE. Decide whether to waitF.Ask permission to disagreeG. Identify a shared goalHow to Disagree with Someone More Powerful than YouYour boss proposes a new initiative you think won' t work.Youlsenior colleague outlines a project timeline you think is unrealistic.What do you say when you disagree with someone who has morepower than you do? How do you decide whether it’s worth speakingup? And if you do, what exactly should you say? Here' s how tcdisagree with someone more powerful than you.41.You may decide it' s best to hold off on voicing your opinion.Maybe you haven’t finished thinking the problem through, the wholediscussion was a surprise to you, or you want to get a clearer sense oiwhat the group thinks. If you think other people are going to disagree too, you might want to gather your army first. People can contributeexperience or information to your thinking—all the things that wouldmake the disagreement stronger or more valid. It's also a good ideato delay the conversation if you' re in a meeting or other public space.Discussing the issue in private will make the powerful person feel lessthreatened.42.Before you share your thoughts,think about what the powerfulperson cares aboutit may be "the credibility of their team orgetting a project done on time. You' re more likely to be heard if youcan connect your disagreement to a higher purpose.When you dospeak up, don' t assume the link will be clear. You’ ll want to state itovertly, contextualizing your statements so that you' re seen not as adisagreeable underling but as a colleague whos trying to advance ashared goal. The discussion will then become more like a chess gamethan a boxing match.43.This step may sound overly deferential, but it' s a smart way to givethe powerful person psychological safety and control. You can saysomething like,“I know we seem to be moving toward a first-quartercommitment here.I have reasons to think that won' t work.T d like to lay out my reasoning. Would that be OK?"This gives the person achoice,allowing them to verbally opt in.And, assuming they say yes.it willmake, you feel more confidentabout voicing yourdisagreement.44._You might feel your heart racing or your face turning red, but dcwhatever you can to remain neutral in both your words and actions,When your body language communicates reluctance or anxiety,itundercuts the message. Itsends a mixed message, and yourcounterpart gets to choose what to read. Deep breaths can help, ascan speaking more slowly and deliberately. When we feel panicky wetend to talk louder and faster. Simply slowing the pace and talking inan even tone helps the other person calm down and does the samefor you. It also makes you seem confident, even if you aren't.45._Emphasize that you're offering your opinion, not gospel truth. Itmay be a well-informed, well-researched opinion, but it' s still anopinion, my talk tentatively and slightly understate your confidence.Instead of saying something like, " If we set an end-of-quarterdeadline, we'll never make it,:" say,“This is just my opinion, but ldon't see how we will make that deadline." Having asserted yourposition(as a position，not as a fact) demonstrate equal curiosityabout other views.Remind the person that this is your point of view,and then invite critique. Be open to hearing other opinions.Part CDirections:Translate the following text into Chinese. Write your translation onthe ANSWER SHEET. (10 points)We tend to think that friends and family members are our biggestsource of connection, laughter and warmth . While that may well betrue, researchers have also recently found that interacting withstrangers actually brings a boost in mood and feelings of belongingthat we didn't expect.In one series of studies,researchers instructed Chicago- areacommuters using publictransportation to strike up a conversationwith someone near them. On average,participants who followed thisinstruction felt better than those who had been told to stand or sit insilence.The researchers also argued that when we shy away fromcasual interactions with strangers,It is often due to a misplacedanxiety that they might not want to talk to us. Much of the time,however, this belief is false . As it tums outmany people are actuallyperfectly wiling to talk- and may even beflattered to receive yourattention .Section m WritinPart A51. Directions:Suppose you are organising an online meeting. Write an email to Jackan international student.(1) invite him to participate,and(2) tell him the detailsYou should write neatly on ANSWER SHEET 2.Do not sign your own name at the end of the e-mail. Use " LiMing"instead.Do not write the address. (10 points)Part B52.Directions:Write an essay based on chart below. In your writing,you should(1) interpret the chart,and(2) give your commentsYou should write about 150words on theANSWERhave a chance to gain momentum, in some cases as part of a"buyand kill" tactic to simply close them down31. What is true about Wuderlist and sunrise after their acquisitionsA.Their market values declined.B. Their tech features improvedC. Their engineers were retainedD. Their products werere-priced.32. Microsoft's critics believe that the big tech companies tend toA. ignore public opinionsB.treat new tech talent unfairlyC.exaggerate their product qualityD.eliminate their potential competitors.33. Paul Arnold is concerned that small acquisitions miahtA. harm the national economyB. worsen market competitionC. discourage start-up investorsD.weaken big tech companies.34. The US Federal Trade Commission intend toA. examine small acquisitionsB. limit Big Tech'’ s expansionC. supervise start-ups’operationsD.encourage research collaboration35. For the five biggest tech companies, their small acquisition haveA. brought little financial pressureB. raised few management challengesC.set an example for future dealsD. generated considerable profitsText 4we're fairly good at judging people based on first impressions,thin slices of experience ranging from a glimpse of a photo to afive-minute interaction, and deliberation can be not only extraneousbut intrusive. In one study of the ability she dubbed"thin slicing,"the late psychologist Nalini Ambady asked participants to watchsilent 10-second video clips of professors and to rate the instructor's overall effectiveness. Their ratings correlated strongly withstudents’ end-of-semester ratings.Another set of participants had tccount backward from 1,000 by nines as they watched the clips,occupying their conratings were just asaccurate, demonstrie social processing.Critically, anotherninute writing downreasons for their Jjudgment,betore giving the rating. Accuracydropped dramatically. Ambady suspected that deliberation focusedthem on vivid but misleading cues,such as certain gestures orutterances, rather than letting the complex interplay of subtle signalsform a holistic impression. She found similar interference whenparticipants watched 15-second clips of pairs of people and judgedwhether they were strangers, friends, or dating partners.Other research shows we' re better at detecting deception andsexual orientation from thin slices when we rely on intuition insteadof reflection.“It' s as if you' re driving a stick shift," says Judith Hall,a psychologist at Northeastern University,"and if you start thinkingabout it too much, you can' t remember what you’ re doing. But if yougo on automatic pilot, you' re fine. Much of our social life is like that."Thinking too much can also harm our ability to form preferencesCollege students' ratings of strawberry jams and college coursesaligned better with experts' opinions when the students weren'tasked to analyze their rationale. And people madecar-buyingdecisions that were both objectively better and more personallysatisfying when asked to focus on their feelings rather than on details,but only if the decision was complex — when they had a lot o1information to process.Intuition ' s special powers are unleashed only in certaincircumstances. In one study, participants completed a battery of eighttasks, including four that tapped reflective thinking (discerning rules,comprehending vocabulary) and four that tapped intuition andcreativity (generating new products or figures of speech).Then theyrated the degree to which they had used intuition ( "gut feelings,""hunches,"“my heart”). Use of their gut hurt their performance onthe first four tasks,as expected, and helped them on the restSometimes the heart is smarter than the head.36. Nalini Ambabys study deals with_A. instructor student interactionB.the power of people's memoryC. the reliability of first impressionsD.People’s ability to influence others37. In Ambaby ' s study,rating accuracydropped whenparticipants_A. gave the rating in limited timeB. focused on specific detailsC. watched shorter video clipsD. discussed with on another38.Judith Hall mentions driving to mention that_A. memory can be selectiveB.reflection can be distractingC. social skills must be cultivatedD. deception is difficult to detect39. When you are making complex decisions, it is advisable to_A. follow your feelingsB. list your preferencesc. seek expert adviceD.collect enough data40.(缺)Directions:In the following article, some sentences have been removed. FotQuestions 41—45, choose the most suitable one from the list A—G tcfit into each of the numbered blanks.There are two extra choiceswhich do not fit in any of the blanks. Mark your answers on ANSWERSHEET 1.(10 points)A. Stay calmB. Stay humbleC. Don’t make judgmentsD.Be realistic about the risksE. Decide whether to waitF.Ask permission to disagreeG. Identify a shared goalHow to Disagree with Someone More Powerful than YouYour boss proposes a new initiative you think won' t work.Youlsenior colleague outlines a project timeline you think is unrealistic.What do you say when you disagree with someone who has morepower than you do? How do you decide whether it’s worth speakingup? And if you do, what exactly should you say? Here' s how tcdisagree with someone more powerful than you.41.You may decide it' s best to hold off on voicing your opinion.Maybe you haven’t finished thinking the problem through, the wholediscussion was a surprise to you, or you want to get a clearer sense oiwhat the group thinks. If you think other people are going to disagree too, you might want to gather your army first. People can contributeexperience or information to your thinking—all the things that wouldmake the disagreement stronger or more valid. It's also a good ideato delay the conversation if you' re in a meeting or other public space.Discussing the issue in private will make the powerful person feel lessthreatened.42.Before you share your thoughts,think about what the powerfulperson cares aboutit may be "the credibility of their team orgetting a project done on time. You' re more likely to be heard if youcan connect your disagreement to a higher purpose.When you dospeak up, don' t assume the link will be clear. You’ ll want to state itovertly, contextualizing your statements so that you' re seen not as adisagreeable underling but as a colleague whos trying to advance ashared goal. The discussion will then become more like a chess gamethan a boxing match.43.This step may sound overly deferential, but it' s a smart way to givethe powerful person psychological safety and control. You can saysomething like,“I know we seem to be moving toward a first-quartercommitment here.I have reasons to think that won' t work.T d like to lay out my reasoning. Would that be OK?"This gives the person achoice,allowing them to verbally opt in.And, assuming they say yes.it willmake, you feel more confidentabout voicing yourdisagreement.44._You might feel your heart racing or your face turning red, but dcwhatever you can to remain neutral in both your words and actions,When your body language communicates reluctance or anxiety,itundercuts the message. Itsends a mixed message, and yourcounterpart gets to choose what to read. Deep breaths can help, ascan speaking more slowly and deliberately. When we feel panicky wetend to talk louder and faster. Simply slowing the pace and talking inan even tone helps the other person calm down and does the samefor you. It also makes you seem confident, even if you aren't.45._Emphasize that you're offering your opinion, not gospel truth. Itmay be a well-informed, well-researched opinion, but it' s still anopinion, my talk tentatively and slightly understate your confidence.Instead of saying something like, " If we set an end-of-quarterdeadline, we'll never make it,:" say,“This is just my opinion, but ldon't see how we will make that deadline." Havingasserted yourposition(as a position，not as a fact) demonstrate equal curiosityabout other views.Remind the person that this is your point of view,and then invite critique. Be open to hearing other opinions.Part CDirections:Translate the following text into Chinese. Write your translation onthe ANSWER SHEET. (10 points)We tend to think that friends and family members are our biggestsource of connection, laughter and warmth . While that may well betrue, researchers have also recently found that interacting withstrangers actually brings a boost in mood and feelings of belongingthat we didn't expect.In one series of studies,researchers instructed Chicago- areacommuters using public transportation to strike up a conversationwith someone near them. On average,participants who followed thisinstruction felt better than those who had been told to stand or sit insilence.The researchers also argued that when we shy away fromcasual interactions with strangers,It is often due to a misplacedanxiety that they might not want to talk to us. Much of the time,however, this belief is false . As it tums outmany people are actuallyperfectly wiling to talk- and may even beflattered to receive yourattention .Section m WritinPart A51.Directions:Suppose you are organising an online meeting. Write an email to Jackan international student.(1)invite him to participate,and(2) tell him the detailsYou should write neatly on ANSWER SHEET 2.Do not sign your own name at the end of the e-mail. Use " LiMing"instead.Do not write the address. (10 points)Part B52.Directions:Write an essay based on chart below. In your writing,you should(1) interpret the chart,and (2)give your commentsYou should write about 150words on theANSWERSHEET.(15points)60.0%,50.0% ,4.0%s30.0N)23.9%20.ogsy,10.0gy .px.hep.0.0%。

《2 的乘法口诀》学习任务单一、学习目标1、理解并掌握 2 的乘法口诀的含义和规律。

2、能够熟练背诵 2 的乘法口诀。

3、运用 2 的乘法口诀解决简单的数学问题。

二、学习重点1、 2 的乘法口诀的推导过程。

2、 2 的乘法口诀的记忆和应用。

三、学习难点1、理解乘法的意义与 2 的乘法口诀之间的关系。

2、运用 2 的乘法口诀解决实际问题时的灵活运用。

四、学习过程1、知识回顾（1）复习加法的意义：把两个（或几个）数合并成一个数的运算，叫做加法。

例如：1 ＋ 1 ＝ 2，2 ＋ 2 ＝ 4。

（2）复习乘法的初步认识：求几个相同加数的和的简便运算，叫做乘法。

比如：2 ＋ 2 ＋ 2 ＝ 6，可以写成 2×3 ＝ 6，其中 2 是相同的加数，3 是相同加数的个数。

2、新课导入观察下面的图片：展示有 2 个一组的物品，如 2 个苹果一组，共 5 组思考：这里一共有多少个苹果？可以怎样列式计算？我们可以用加法来计算：2 ＋ 2 ＋ 2 ＋ 2 ＋ 2 ＝ 10也可以用乘法来计算：2×5 ＝ 10 或 5×2 ＝ 103、探索 2 的乘法口诀（1）观察下面的算式：2×1 ＝ 22×2 ＝ 42×3 ＝ 62×4 ＝ 82×5 ＝ 102×6 ＝ 122×7 ＝ 142×8 ＝ 162×9 ＝ 18（2）尝试编口诀根据上面的算式，我们来编 2 的乘法口诀。

2×1 ＝ 2，口诀：一二得二2×2 ＝ 4，口诀：二二得四2×3 ＝ 6，口诀：二三得六2×4 ＝ 8，口诀：二四得八2×5 ＝ 10，口诀：二五一十2×6 ＝ 12，口诀：二六十二2×7 ＝ 14，口诀：二七十四2×8 ＝ 16，口诀：二八十六2×9 ＝ 18，口诀：二九十八（3）理解口诀的含义以“二五一十”为例，它表示 2 个 5 相加的和是 10，或者 5 个 2 相加的和是 10。

2020年同等学力人员申请硕士学位外国语水平全国统一考试（二）真题及答案解析Section BDirections:Im this section,you are required1o read one quoted blog and the commentson it.The biog and comments arc followed by questions or unfinished statements,eachwith four suggested answers A,B,C and D. Choose the best answer and mark youranswer onthe Answer Sheet.Face masks are one of the best defenses against the spread of COVID-19,but theirgrowing adoption is having a second,unintended effect: breaking facial recognitionalgorithms(算法).Wearing face masks that adequately cover the mouth and nose causes the errorrate of some of the most widely used facial recognition algorithms to rise to between5percent and50percent,a study by the US National Institute of Standards andTechnology(NIST)has found.Black masks were more likely to cause errors than bluemasks,and the more of the nose covered by the mask,the harder the algorithms foundit to identify the face.“We need to understand how face recognition technology deals with maskedfaces,"said the author of the report and NIST computer scientist. "We have begun byfocusing on how an algorithm developed before the pandemic(大流行病)might beaffected by subjects wearing face masks. Later this summer,we plan to test theaccuracy of algorithms that were intentionally developed with masked faces in mind."Facial recognition algorithms such as those tested by NIST work by measuring the distances between features in a target's face.Masks reduce the accuracy of these algorithms by removing most of these features, although some still remain.This is slightly,different from how facial recognition works on iPhones,for example,which use depth sensors for extra security,ensuring that the algorithms can't be fooled by showing the camera a picture(a danger that is not present in the scenarios NIST is concerned with).Comment1Well,that's one good thing to come out of the pandemic.Mass sureillance is nonsense.Time to pair masks up with sunglasses to deliver the decisive stroke.Comment2“Wearing face masks that adequately cover the mouth and nose causes the error rate of some of the most widely used facial recognition algorithms to rise sharply"Rubbishtechnology!I would've never guessed.Comment3There's a reason why some country is already using gait(步态) analysis.Facial recognition is too easy to block or to fool.Comment4Pretty soon they are going to do...analysis.With the development of AI,there will be away out.Comment5The AI's getting better,though,so soon it won't matter.Just like how you can pick outa relative or close friend even in bad CCTV footage, so too can AI.Your height,walking gait,mannerisms,voice,ears,clothing, etc,all add up to YOU.41.What is the passage mainly about?A.The best way to defend against COVID-19.B.Efforts to improve facial recognition technology.C.Methods to fool the facial recognition system.D.The impact of masks on facial recognition accuracy.42.The NIST study found that compared with blue masks,black masksA.were more widely used by the publicB.caused more errors in facial recognitionC.provided better protection against the virusD.required less complex algorithmsment1seems to beA.in favor of the rules for wearing face masksB.in favor of the facial recognition technologyC.against the wide use of facial recognitionD.against the requirements for wearing face masks44.Which comment views the current facial recognition technology with contempt?ment2.ment3.ment4.ment5.45.Which of the following is positive about the future technological advance?ment2and Comment3.ment I and Comment4.ment3and Comment5.ment4and Comment5.Part IV Cloze(10points)Directions:In this part,there is a passage with ten blanks.For each blank there arefour choices marked A,B,C,and D.Choose the best answer for each blank and markyour answer onthe Answer Sheet.The English countryside has a classic image.People imagine that life in the country is slow and calm;that there are no traffic jams,no pollution,and no crime.In some places,this is true;but in 46it is not.Small towns and villages are becoming more and more 47;people have more space and most houses have gardens.But problems are48.Lots of people want to live in the country and work in the city; so more and more people travel49distances each day,to go to work.Of course they don't use buses or trains;they use cars.Little villages now have traffic problems in the morning,just50big cities!The problems are very complicated!If everyone moves into the country,the peace of the countryside will51!People leave cities and big towns,to escape from urban problems; but more and more,they are52their problems with them.On warm summer days,and cold winter days,air pollution can be a big problem in large53of the south of England,not just in London.Perhaps there is 54for the future.Soon Britain's population will stop rising.From about the year2030,it will perhaps start to fall.In100year's time, there will be less people in Britain than today-perhaps two million less. No doubt there will be55pollution too;oil and petrol will probably be rare by then.46.A.OtherB.the othersC.othersD.another47.A.FamousB.beautifulC.secureD.popular48.A.decliningB.growingC.solvedD.involved49.A.FarB.shortC.remoteD.long50.A.LikeB.asC.forD.to51.A.AriseB.emergeC.continueD.disappear52.A.developing B.bringingC.causingD.creating53.A.PartsB.placesC.ctiesD.blocks54.A.FearB.planC.hopeD.vision55.A.MoreB.lessC.muchD.fewPart V Text Completion(20points)Directions:In this part,there are three incomplete texts with20 questions(Rangingfrom56t075).Above each text there arre three or four phrases to be completed.First,use the choices provided in the box to complete the phrases.Second,use the completedphrases10fill in the blanks of the texr.Note you should blacken the lelters that indicate.your answers onthe Answer Sheet.Text OneA.ConnectedB.HealthyC.immuneA.eating56meals at regular timesB.can also impair our57system fiunctionC.are58to the body clockA lack of quality sleep not only affects how we feel during the daytime, but59,which is vital in protecting us from common viral illnesses. Efforts needed to sleep well that include following a sleeproutine,.60and not drinking too much coffee.All of these things are really interconnected in terms of their function.All of them61The bodyis like an orchestra where there's an orchestra leader that's sort of the main timer,but everybody clse is playing it together and they're optimizing what they are doing.Text TwoA.ShareB.DemandsC.forceA.true happiness62that we have it in our livesB.they freely.63their ups and downsC.as it is a driving.64in our natureOne of the basic needs we have as humans is to connect with others. We have done thissince the beginning of time65.Close intimate friendships fill that need.There issimply no replacement for this in our lives.You can't buy it,borrow it or steal it,but66.Experts found that people who can name several close,supportive friends-friendswithwhom67—live with greater health and happiness.Text ThreeA.FutureB.ShapeC.FormD.safetyA.will adjust themselves for your68and comfortB.wil69the way we live in astonishing waysC.mimicked human70and thinkingD.gains a truer glimpse of our robotic71Tiny technologies are a key to the future of robots.The old science-fiction notion of arobot pictured a large machine that72.But a visitor to the Arificial IntelligenceLaboratory at Cambridge73。

使命召唤2 详细流程攻略
详细流程攻略
苏军战役 第一关：家园保卫战（The Winter War） 1 红军训练（Red Army Training） 时间：1941年12月17日 地点：苏联 莫西科西20里处 德军的部队逼近莫斯科，瓦西里．克斯拉夫和许多市民一样加入到保卫莫斯科的队伍之中，他作为刚加入红军的新兵，必须进行一番训练才能投入战斗。乘车来到莫斯科郊外，跟随战友和长官跳下卡车，用Tab观看任务目标，地图上会用金星标注任务地点。听完雷特莱夫的命令，顺着战壕跑到储藏间拿手枪和来复枪（F），用数字键可切换武器，右键为放大瞄准。向长官汇报后开始射击训练，先朝柱子上的两只玩具熊射击，再将后面的碟子和酒瓶射碎。接下来是肉搏技能训练，用枪托砸向靶子（Shift）。最后学习投掷手榴弹的技能，拾起箱子里的马铃薯朝目标投掷，这里要用G或鼠标中键拾取，然后对准目标投掷，如果目标较高要留出提前量，即准星比目标稍高一些。 回到储藏间逼问俘虏，然后跟随队伍赶往东方的德军补给库。在穿越房屋时会遇到窗口或矮墙，用空格键可翻跃过去。跑过一串的废屋遇到德军的坦克，跑到对面的屋里拿烟雾弹，再上二层朝街道左边扔烟雾弹（4），和队友趁烟雾进入对面的楼，最后在补给库找到一辆德军装甲车，清掉德兵后上去放置炸药（F），轰隆声响中完成任务。 2 破坏（Demolition） 时间：1942年12月2日 地点：苏联 斯大林格勒 瓦西里和战友一起保卫斯大林格勒，在穿越伏尔加河时许多的同志都牺牲的，慢慢的他感觉到战争的残酷性。任务开始由房间进走廊，躲到箱子后面用步枪开始清理左边大厅里的德兵，等德兵撤离后跑到窗口杀轨道附近的敌人，然后跑到外面攻入对面的楼里。 穿过房间进入防御线战壕，看到前面一位战友正拖着伤员行进，等战壕上面的坦克离去后，看地上的伤员吐着微弱的气息，祝他好运。顺着战壕进入前面的大楼，在里面看到众多埋伏的战友

号码复式三中三,三中二计算方法:n(n-1)---------=二中二的组数,如10个号是（10×9÷2）＝45组!2n(n-1)(n-2)---------------- =三中二（或三中三）的组数,如10个号（10×9×8÷6）＝120组!3*2 *1n(n-1)(n-2)(n-3)----------------------- =四中四（或四中二）的组数,如10个号（10×9×8×7÷24）＝210组!4* 3*2 *1n(n-1)(n-2)(n-3)(n-4)---------------------------- =五中五（或五中二）的组数,如10个号（10×9×8×7×6÷120）＝252组!5* 4* 3*2 *1n(n-1)(n-2)(n-3)(n-4)(n-5)--------------------------------- =六中六（或六中二）的组数,如10个号（10×9×8×7×6×5÷720）＝210组! 6* 5* 4* 3* 2 * 1复式连（三中三）（三中二）赔率表:===============================================组合个数‖ 组数‖ 中二个‖ 中三个‖ 中四个‖ 中五个 ‖ 中六个 ‖===============================================4 ‖ 4 ‖ 2组 ‖ 3组＋1 ‖ 0组＋4 ‖===============================================5 ‖ 10 ‖ 3组 ‖ 6组＋1 ‖ 6组＋4 ‖ 0组＋10‖===============================================6 ‖ 20 ‖ 4组 ‖ 9组＋1 ‖ 12组＋4‖ 10组＋10 ‖ 0组＋20‖===============================================7 ‖ 35 ‖ 5组 ‖ 12组＋1‖ 18组＋4‖ 20组＋10‖ 15组＋20‖===============================================8 ‖ 56 ‖ 6组 ‖ 15组＋1‖ 24组＋4‖ 30组＋10‖ 30组＋20‖===============================================9 ‖ 84 ‖ 7组 ‖ 18组＋1‖ 30组＋4‖ 40组＋10‖ 45组＋20‖===============================================10 ‖ 120 ‖ 8组 ‖ 21组＋1‖ 36组＋4‖ 50组＋10‖ 60组＋20‖===============================================11 ‖ 165 ‖ 9组 ‖ 24组＋1 ‖ 42组＋4‖ 60组＋10‖ 75组＋20‖===============================================12 ‖ 220 ‖ 10组 ‖ 27组＋1‖ 48组＋4‖ 70组＋10‖ 90组＋20‖===============================================13 ‖ 286 ‖ 11组 ‖ 30组＋1‖ 54组＋4‖ 80组＋10‖ 105组＋20‖===============================================14 ‖ 364 ‖ 12组 ‖ 33组＋1‖ 60组＋4‖ 90组＋10‖ 120组＋20‖===============================================15 ‖ 455 ‖ 13组 ‖ 36组＋1‖ 66组＋4‖ 100组＋10‖ 135组＋20‖===============================================组合个数‖ 组数‖ 中二个‖ 中三个‖ 中四个‖ 中五个 ‖ 中六个 ‖===============================================2中2复式计算公式2个码=2*1/2=1组2中2复式计算公式3个码=3*2/2=3组3中3复式计算公式3个码=3*2*1/6=1组3中3复式计算公式4个码=4*3*2/6=4组4中4复式计算公式4个码=4*3*2*1/24=1组4中4复式计算公式5个码=5*4*3*2/24=5组5中5复式计算公式5个码=5*4*3*2*1/120=1组5中5复式计算公式6个码=6*5*4*3*2/120=6组6中6复式计算公式6个码=6*5*4*3*2*1/720=1组6中6复式计算公式7个码=7*6*5*4*3*2/720=7组7中7复式计算公式7个码=7*6*5*4*3*2*1/5040=1组7中7复式计算公式8个码=8*7*6*5*4*3*2/5040=8组注：其实很简单，所有的复式都有公式可算的，全有关连，细看一定能看出的。

• 一种出口干电池的商标叫“白象”，英译成“White Elephant”。殊不知a white elephant是条固定的英文短 语，意为“沉重的负担”（a burdensome possession） 或“无用而累赘的东西”（useless）。“蜜蜂”牌洗 澡香皂被直译为“Bees”。这是完全对应的英译，但英 文读者却不欢迎这个译名，因为蜜蜂身上有几乎看不见 的绒刺，擦在身上自然感觉不到舒服。马戏牌扑克牌被 音译成“Maxipuke”也是符合翻译技巧和原则的。但这 个汉语拼音牌名正好是两个英义词“Maxi”（＝very large or particularly big特大的）和“puke” （=vomit 呕吐物，催吐剂；令人作呕的人成物）的集合。人们玩 扑克无疑多为娱乐，起名“马戏”对中国人来说是个很 理想的名字。可英国人对此译名却可能是望而却步。它 不仅不给人以快乐的感觉，反而令人感到恶心。
Unit 2
Ugly Is Only Skin-deep
《商务英语翻译》 （英译汉）
【Translation】
It may not be much to look at. But beneath that humble exterior beats an air-cooled engine. It won’t boil and ruin your piston rings. It won’t freeze over and ruin your life. It’s in the back of the car for better traction in snow and sand. And it will give you about 29 miles to a gallon of gas. • After a while you get to like so much about the VW②, you even get to like what it looks like. • You find that there’s enough legroom for almost anybody’s legs. Enough headroom for almost anybody’s head. With a hat on it. Snugfitting bucket seats. Doors that close so well you can hardly close them. They’re so airtight, it’s better to open the window a crack first! • Those plain, unglamorous wheels are much suspended independently. So when a bump makes one wheel bounce, the bounce doesn’t make the other wheel bump. It’s things like that you pay $1585 for, when you buy a VW. The ugliness doesn’t add a thing to the cost of the car. • That’s the beauty of it.

2是什么意思
2是一个网络用语，通常有多种理解意思，可以理解为“爱”，理解为“笨”、“傻”的意思，也可以形容一个人很活泼开朗、幽默并且个性，还可以用来形容人呆住、无语。

众所周知，在网络中，2通常有多种理解意思，一种理解为“爱”，如数字串“520”=我爱你，数字串“5201314”=我爱你一生一世，数字串“258”=爱我吧，数字串“7758258”=亲亲我吧爱我吧，数字串“52410”=我爱死你了。

其他一种理解为“笨”、“傻”的意思。

例如250，2货。

这种意思的2来源于"62"，近似于杭州方言“盒子”，用来形容人脑袋空空比较笨。

另一种意思就是形容一个人很活泼开朗，很幽默并且个性，比如说：“很2很光芒”。

还有一种用来形容人呆住、无语的意思，如：看到这个成绩我瞬间就2了。

同时，在北京方言里，2也表示一种傻，脑子不灵活的意思。

声明扬州电力设备修造厂是国家电网公司江苏省电力公司全资子公司，江苏省电力公司直属管理的电站辅机及电力装备和非标准设备专业制造企业，国家级高新技术企业、江苏省电力阀门驱动装置工程技术研究中心、德国西门子公司许可证产品制造工厂，生产阀门电动装置、电动执行机构、核级驱动及执行机构、电站辅机备品配件、氢气去湿装置、电网箱柜类产品。

我厂从未授权任何单位和个人生产相关产品；从未与任何单位和个人建立合作关系生产相关产品。

在市场竞争激烈的情况下，有些企业仿冒扬州电力设备修造厂的产品，或有其他非正当市场行为，敬请广大用户在经济往来活动中，选择原厂产品，以保护您的利益，减少您的损失。

我们愿向广大用户提供技术支持，以便于甄别原厂产品和假冒伪劣产品。

感谢您的关心和支持。

若有疑问，请与我厂联系！安全该机电设备是在工业强电流的条件下使用的。

在操作中，该设备上有些裸露零件带电，同时有些零件能够运动或转动，都是很危险的。

因此，未经许可拆下所需的罩盖，不合理的使用，不正确的操作或不合适的维护，均会造成严重的人身伤害或损坏设备性能。

为了设备的安全，必须保证：——仅允许有资格的人员对这些机械和设备进行作业。

——无论何时，在上述有资格的人员对该机械和设备进行作业时，他们都应备有这些机械和设备的操作说明书或其它产品文件，以便按说明书的要求执行。

——严禁没有资格的人员对该机械和设备进行作业或在其附近进行作业。

目录1 用户快速使用指南 (1)1.1 使用须知 (1)1.2 操作面板简介 (1)1.3 按键功能简介 (1)1.4 指示灯逻辑状态 (2)1.5 遥控器 (2)1.6 初次使用 (3)2 产品型号表示方法 (4)3 安装、电气连接与调整 (4)3.1 安装 (4)3.2 电气连接与调整 (4)4 操作方法 (5)4.1 远方操作 (5)4.2 就地操作 (5)5 参数设置 (6)5.1 I/O参数设置 (6)5.2 控制参数设置 (8)6 参数浏览 (9)6.1 I/O参数浏览 (10)6.2 控制参数浏览 (11)6.3 故障记录浏览 (11)6.4 其它参数浏览 (12)7 外形及连接尺寸 (13)7.1 外形尺寸 (13)7.2 连接尺寸 (14)8 维修及保养 (15)附录1 2SDQ电动执行机构接线图 (16)附录2 2SDQ 主要技术参数 (18)附录3 2SDQ 主要性能参数 (19)附录4 2SDQ电动执行机构出厂默认参数一览表 (19)附录5 2SDQ电动执行机构故障显示以及解决方法浏览表 (20)附录6 2SDQ系列产品型号说明 (21)5 61、OLED显示屏2、红色-阀位指示灯（开向）3、黄色-报警灯4、绿色-阀位指示灯（关向）5、红外接收6、红外发射7、切换按键（状态切换）8、停止按键/菜单设置（确定）9、关向按键/菜单设置（下一个）10、开向按键/菜单设置（退出）1 用户快速使用指南1.1 使用须知●非侵入式2SDQ系列电动执行机构在运输、保管、安装、调试、运行、维修时应严格按照本说明书的各项要求进行，以避免发生故障及损伤。

⽆忧考新概念频道为⼤家整理的新概念英语第四册课⽂及翻译：Lesson2，供⼤家参考。

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　【课⽂】 First listen and then answer the following question. 听录⾳，然后回答以下问题。

How much of each year do spiders spend killing insects? Why, you may wonder, should spiders be our friends? Because they destroy so many insects, and insects include some of the greatest enemies of the human race. Insects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals. We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders. Moreover, unlike some of the other insect eaters, spiders never do the harm to us or our belongings. Spiders are not insects, as many people think, nor even nearly related to them. One can tell the difference almost at a glance, for a spider always has eight legs and an insect never more than six. How many spiders are engaged in this work on our behalf? One authority on spiders made a census of the spiders in grass field in the south of England, and he estimated that there were more than 2,250,000 in one acre; that is something like 6,000,000 spiders of different kinds on a football pitch. Spiders are busy for at least half the year in killing insects. It is impossible to make more than the wildest guess at how many they kill, but they are hungry creatures, not content with only three meals a day. It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country. 【New words and expressions ⽣词和短语】 insect n. 昆⾍ devour v. 吞⾷ flock n. ⽺群 herd n. 牧群 beast n. 野兽 fraction n. ⼩部分 census n. 统计数字 acre n. 英亩 content adj. 满⾜的 【课⽂注释】 1. you may wonder 是这个疑问句的插⼊语。

From ancient times till now, tourism has demonstrated the happy wish of the people for more knowledge, varied experience and good health. In ancient times, ancient Chinese thinkers raised the idea of “appreciating the landscape through sightseeing” . Ancient people also proposed to “travel ten thousand Li and read ten thousand books”, which shows they found pleasure in enriching themselves mentally and physically through traveling over famous mountains and rivers. China, as a big oriental country, not only boasts a long history of civilization but also demonstrates a great deal of modern vitality. It is endowed with unique, rich and varied tourism resources.
long history of civilization but also demonstrates a great deal of modern vitality. It is endowed with unique, rich and varied tourism resources.