电脑
五年级 陈丽媛
提起电脑,相信大家都非常熟悉。电脑又叫电子计算机。如今,随着科技的发展,电脑已走进千家万户。
电脑一般分为两大类;一类是个人电脑,个人电脑有台式的,笔记本的,最新式的是平板的。另一类是超级电脑,每秒的运算速度在亿次以上,主要用在银行、科研、军事等方面。
电脑由硬件系统和软件系统组成。电脑的硬件系统主要由主机、显示器、键盘、鼠标、音箱、摄像头等组成。主机就是电脑的主管,就像我们的头脑,控制着电脑每天的工作。显示器就像我们的眼睛,把所有工作的成果展示给我们看。键盘上有26个英文字母键,方向键,数字键和几个重要按键,是电脑主要的输入设备。鼠标就像一只老鼠似的扒在桌子上,可是作用非常大,可以灵活地指挥各种应用程序。音箱可以带领我们进入美妙的音乐世界。摄像头可以让我们足不出户,与世界各地的人们交流。电脑的软件系统分为两类;一类是操作系统软件,主要有windows操作系统和Linux操作系统等,最原始的是dos操作系统。它们是计算机底层的系统软件,负责管理、调度、指挥计算机的软硬件资源使其协调工作,没有它,任何计算机都无法正常运行。它在资源使用者和资源之间充当中间人的角色,举个例子,一个用户(也可以是程序)将一个文件存盘,操作系统就会开始工作:管理磁盘空间的分配,将要保存的信息由内存写到磁盘等。当用户要运行一个程序时,操作系统必须先将程序载入内存,当程序执行时,操作系统会让程序使用CPU。另一类是应用软件,可以办公,也可以游戏,还能保证安全等等。
电脑的用途很多:可以上网,例如聊天、发邮件、听音乐,玩游戏、登Q、查资料等;可以管理资料,比如学校的图书室里的电脑是用来登记图书借出去情况的;可以记帐,比如超市里的计算机,就是拿来记帐的;还可以控制生产,比如水泥厂里的电脑能自动控制生产。瞧,电脑真是各方面的能人!
电脑与人们的生活息息相关,让人们的生活变得更美好。
指导老师 林蔚文
班级姓名
Rewritethesentences.(注意大小写和标点)
e.g.Thisismydesk.→Isthisyourdesk?Yes,itis./No,itisn’t.
Thesearemypens.→Aretheseyourpens?Yes,theyare./No,theyaren’t.
1.Thisismyschoolbag.(肯定回答)
2.Thesearemybooks.(肯定回答)
3.Thisismypencil.(肯定回答)
4.Thesearemyrulers.(肯定回答)
5.Thisismychair.(肯定回答)
6.Thesearemyrubbers.(否定回答)
7.Thisismybanana.(否定回答)
8.Thesearemypears.(否定回答)
9.Thisismydog.(否定回答)
10.Thesearemyeggs.(否定回答)
保安人员英语对话50句
1、先生/女士,您好!
Goodmorning/Goodafternoon/GoodeveningSir/Madam
2、请问有什么可以帮您?
HowcanIhelpyou?/MayIhelpyou?
3、请您出示您的住户证。
PleaseshowmeyourIDcard.
4、请问您去哪个单元?
WhichApartmentareyougoingfor?
5、不好意思,我不懂英文。
Iamsorry,Idon’tunderstandEnglish.
6、请问您会中文吗?
DoyouspeakChinese?
7、您有翻译或者有会中文的朋友吗?
DoyouhaveafriendwhospeaksChinese?
8、请您在登记本上填写您要去的单元。
PleasewritedowntheApartmentnumberonourregistrationbook.
9、谢谢您的合作。
Thankyouforyourcooperation.
10、请您用对讲机或电话和您要去的单元联系一下好吗?
Please,canyouuseyourphonetocontactthehost/proprietor?
11、能否请您要去单元的客户下来带您进去。
Couldyoupleaseaskthehost/proprietortocomedownandtakeyoutotheapartment?/Pleaseaskyourfriendtocomeandleadyoutotheapartment?
12、请您稍等,我找同事带您进去。
Pleasewaitforamoment,Iwillaskmycolleaguestotakeyoutotheapartment.
13、您好,需要我帮您提这些物品吗?
Hello,doyouneedmyhelptocarrythesethings?
14、地上有水,请小心地滑。
Theflooriswet,pleasebecareful./Caution,wetfloor!
15、抱歉,这个情况我不是很清楚。
Iamsorry;Iamnotsoclearaboutthissituation.
16、请您稍候,我联系服务中心。
Pleasewait;Iwillcontacttheservicecenter.
17、请您和服务中心联系。
Pleasecontacttheservicecenter.
18、不好意思,小区内禁止单车、电
动车进入。
Iamsorry;bicyclesandelectro-carareforbiddenintheresidence.
19、不好意思,这里不能停车。
Iamsorry,parkinghereisnotallowed.
20、请您将车辆停放到指定位置。
Please,parkyourcarintheappointedparkinglot.
21、请您关好车门车窗。
Pleasemakesureyouclosethecardoorsandwindows.
22、请不要摆放贵重物品在车内。
Please,donotleaveyourvaluablesinthecar.
23、车辆可以停放在(具体位置根据服务中心自行制定)
Carscanbeparkedin(definiteaspecificplaceinaccordancewiththeservicecenter
24、请您配合我们的`工作。
Pleasecooperatewithus./Weneedyourcooperation.
25、真不好意思,这个是小区的规定。
Iamtrulysorry;thisistheruleoftheresidence.
26、为了安全,请你拴好狗绳。
Forsafety,pleasefastenyourdog’stie.
27、如果您有什么疑问,可以咨询服务中心。
Ifyouhaveanyproblem,pleasecontacttheservicecenter.
28、服务中心电话是:。
Theservicecenter’stelephonenumberis:
29、您搬出的物品有放行条吗;
Doyouhavethepermissionshiptoremoveitems?
30、请您到服务中心办理放行条。
Pleasegototheservicecentertoapplyforthepermit.
31、请您稍等,我需要核对一下搬出物品。
Pleasewaitforamoment;Ineedtocheckthearticles.
32、这里需要您的签名确认。
Pleasesignhere./Ineedyousignaturehere.
33、您有什么需要我们帮忙的吗?
Doyouneedanyhelpfromus?
34、您可以在这里指出您需要项目。
Youcanindicateallyourneedhere.
35、我要投诉。
Ihaveacomplaint.
36、我要服务中心电话。
Ineedtheservicecenter’stelephonenumber
37、我要找电工帮我维修。
Ineedtofindanelectricianformaintenance.
38、我要找快递。
Ineedanexpressdelivery.
39、我想找人来收废品。
Ineedrecyclingservice.
40、我旁边的住户打扰了我。
Mynextdoorneighborisdisturbingme.
41、我楼上的住户打扰了我。
Myaboveneighborisdisturbingme.
42、我们家的宠物丢失了,请帮我寻找。
Welostourpet,pleasehelpustolookforit.
43、我需要电召出租车。
Ineedtocallataxi.
44、我想找订餐电话。
Ineedtofindtherestaurant’sphonenumberforHome-Delivery-Service.
45、服务中心怎么走?
Howtogettotheservicecenter?
46、我想咨询搬家的事情。
Pleaseconsulttheproceduresofmovingout.
47、我想咨询管理费等费用问题。
Ineedtoconsultaboutthepropertyfee/propertymanagementfee.
48、我想咨询关于会所的问题。
Ineedtoconsulttheproblemabouttheclub.
49、我想咨询游泳池开放的时间。
Ineedtoknowtheopeningtimeoftheswimmingpool.
50、我想咨询收取垃圾的时间。
Ineedtoknowthetimefortherubbishcollecting.
aboutasto
getacquire(knowledge/skills
offerafford(jobopportunities
expectanticipatechanges/difficulities
solvetackle/grapplewith
raiseelevate/heighten
mostimportantoverriding/override
combinesynthesize
supportuphold(ournationalvalues
deepen
weak
usetoomuch
becauseof
satisfy
learn
finally
right
know
miss
dotogether
boring
balance
difference
prettybutlessuseful
fresh
happenagain
good
difficult
perfect
urgent
sad
many/toomuch
fast-growing
maketrue
should
control
broadenone’shorizon
spendAonB
AisimportanttoB
finishsthby
decidetodo
sthisimportant
finditdifficulttodofuelvfuelconflictssap/one’sconfidencestretchnaturalresourcestothelimitattributeto/ascribetomeet/begearedtoward+sthdrawonothers’experienceendupdoing/endwithmakesensenaildownpassuppitchinsitthroughequilibriumecologicalequilibriumdistinctionnicetiesnoveltyrecurringpaindesirableundesirable:notgoodchallengingflawlesspressingbittermounting/awealthofburgeoningpopulationfulfillbesupposetoholdfasttoone’sdreamexpandone’soutlookdedicateAtoBAbeanessentialingredientof/bepartandparcelof/bethecornerstoneofBexploreeveryavenuetowardmakeitapointtodobeamilepostinbehard-pressedtodo/haveahardtimedoingsth
conflictbeatoddswith
few/littleverylittle,ifany
opposefrownon
befullofbeinundated/saturatedwith
todoharmtobelikelytofallpreyto/bevulnerableto
concerncausegraveconcern/concernshavearisenabout
meanspelldisaster/troublefor
makesthsthAhasrenderBsth
tootosthhasreachedsuchproportionthat/…tothepointwhere…mostimportantmorethananything,/andaboveall
growtheproliferationoffast-food/cybergames
seesthobjectivelyputsthinperspective
thinksthmostimportantit’shardtooverstatethesignificanceofneedsthnecessitate/entail
bedevotedtobebenton/upon
showmirror/embody
differentthewholespectrumof
turningpointbeawatershed
accordingtointheeyesof
affecthinder
ageera
aimtargetv
andalongwith/aswellas
andsoonthelike
appearmushroom/springup/sproutup
applyputintopractice
askconsult
aspectsphere
attachenclose
attracttempt/appealto
audienceviewer
basisfoundation
beabletobecapableto
beconvenientatone’sconvenience
begoodatbeskilledat
behelpfulbeofhelp
beimportantbeofimportance
benearbearoundthecorner
beobviousitgoeswithoutsayingthat…/itisarguablethatberisingskyrocket/rocket/soar
besuretobeboundto
besurprisedatbeamazedat
beuselessbeofnouse
bearbeloadedwith
becauseofdueto
becomefashionablecomeintoafashion
becomehappycheerup
beforeoriginal
buildfound/putup/shape
buyafford
byoneselfallalone
carefulattentive
causeattributeto/leadto
changemodify/shift/fluctuation
changewithvarywith
cheatingdeception
choosefrommakeachoicebetween
clearevident/self-evident
comefromstemfrom/springfrom
comeoutcomeforth
complainplaceacomplaintagainst
considerconvince/figureout/givethoughtto
consider…..importantattachimportanceto/laymuchemphasisuponcontinuegoahead
controlinthegripsof
cooperatejoinhandswith
decidedetermine
deepprofound/far-reaching
dependonhingeupon/counton
dependononeselfliveonone’sown
developcultivate/buildup
difficultybarrier
diligentindustrious
dogoinfor/carryout
dogooddofavor/helpv
dropdecline/ontheebb
eatlessgoonadiet
emphasisputahighvalueon/treasurev/valuev/cherishv
enablefacilitate
encouragespursbonto/motivate
endangerjeopardize
enforcestrengthen
engagemajorin
enjoybecrazyabout
enlargebroaden
enoughadequate
evaluatespeakhighlyof
explainuavelthemysteryof/accountfor/beresponsiblefor
facebefacedwith/faceup
failfrustrate
failurefrustration
fameprestige
famousprominent
famouspeoplegalaxy
feelingpassion/sentiments
findlocate
findoutsortout
finishaccomplish
firelayoff
fixinginstallation
focusoncenteron
forexampleacaseinpoint
foreverpermanent
futureprospective
getacquire/regain
getridofeliminate
givegrant/issue
give/supplyprovide…with
giveattentiontogivepriorityto
globaluniversal
goonbringforward
goalheart’sdesire
goodbeneficial
goodstudentstopstudents
goodsnecessity
greatenormous/dramatic
greatprime/utmost
greetingsregards
growflourish
happinesswell-being
havepossess
havearelationshipwithbeontermswith
hopelookforwardto
hopetodosthbeeagertososth./longtodosthhopefulpromising
ignoreneglect
illnessdisease
importantessential/vita
improveenhance/boost/upgrade
improvementadvance
ingroupsintwosandthrees
includemakeup
increasesoar
influencemold
intendtargettodosth./bemeanttodointerestedcrazy
interestinglywithgreatinterestintroductionprospectus
investigationsurvey
joboccupation/employment
joinmaintain/holdonto
keepmaintain/holdonto
killoneselfcommitsuicide
knowgrasp/beawareof/knowaboutknowledgecommand
leavedepartfrom
likepreference
limitconfine
loadburden
lookaroundexamine
lookforruninto/huntfor
lookup…inreferto
lowerinferior
makenervousplacestrainon
makeprogressmakeleapsin/pressforwardmakesureguarantee
makesurethattoseeitthat…
manyberichin/countless
meetruninto/comeacross
messchaos
necessaryindispensable
needbeinneedof
nothesitatefeelfreetodosth
notknowbeignorantof
number
obvious
occupation
offer
only
outcome
overcome
pass
payattentionto
people
perform
period
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