高一英语书面检测(Units 21-23)(英文)

Ⅰ．单项填空１．—WasMrChenlateforthemeeting？—No，hetotheofficeitbegan．A．went；longbeforeB．hadgot；longbeforeC．came；beforelongD．hadcome；beforelong２．—Hasthetrainarrivedyet？—No，itoughttotenminutesago．A．arriveB．havearrivedC．arriveatD．havearrivedat３．—Areyousureyouhaveseenthisman？—Yes，Imquitesurethat．A．that；aboutB．×；toC．of；aboutD．about；of４．Somuchforthislesson．NowIllyousomethingaboutyourexamination．A．goontellingB．goonwithtellingC．keepontotellD．go…     

一个三角恒等式及其应用

代入上式即得命题1．以下是命题1的几个等价命题．其中A,B∈R．命题2sin2A sin2B 2sinAsinBcos(A B)sin2(A B)命题3cos2A cos2B-2cosAcosBcos(A B)=sin2(A B)命题4sin2A＋cos2B-2sinAcosBsin（A＋B）=cos2（A B）;命题5cos’A＋sin’B—ZcosAsinBsin（A＋B）一。。S＼A十B）;台四6sin’A＋sin’B—ZsinAsinBcos（A—B）一幻DZ（A—B）;命囹7COS’A＋COS’B—ZCOOACOSBCOS（A—B）＝sin’（a一B）;命囹8sin’A＋cos’B—ZsinAcosBsin（A—B）一COSZ（A—B）;今囹＠。。s’A＋sin’B＋ZcosAsinBsin…     

中考“情景交际”精选20例(英文)

１．—WouldyoumindlookingaftermydogwhileImonholiday？—．A．OfcoursenotB．Yes，IdbehappytoC．Notatall．IvenottimeD．Yes，please２．—Whatwouldyouliketodrink？—willdo．A．ThingsB．EverythingC．SomethingD．Anything３．—Illgofishingthisweekend．—A．Cantyoufish？B．Thatsverykindofyou．C．Whataboutmorefish？D．Haveagoodtime．４．—Didanybodygooutjustnow？—，Ididntseeanybodygoout．A．IcantsayB．IguesssoC．IhopenotD．Idontthinkso５．—Canyoustayherelonger？—，butIhavetobebacktomor…     

语言功能选择题（英文）

１．—Wouldyoulikeabitmorerice？—，Imquitefull．A．SorryB．NoC．No，thanksD．２．—Ienjoyedmyselfverymuchatyourparty．—．A．ImgladtohearthatB．NotgoodatallC．PleasedontsaysoD．Ofcourse，youdid３．—Whynotgoandasktheteacherforhelp？—．A．Yes，IagreeB．H     

高二英语书面测试(Units 19-21)(英文)

Ⅰ．单项选择１．Icantimagineinsuchadirtyplace．A．toliveB．livingC．tolivingD．live２．Inthedevelopingcountries，peoplecantusemoreenergy，whileintheU．S．theyuse．A．toomuchB．muchtooC．toofarD．fartoo３．LiPingandIstayedattheschool．Therestofourclassinthemuseum，listeningtoahistoricreport．A．isB．wasC．areD．were４．Wouldyoupleasegivemeapentowrite．A．×B．inC．withD．down５．—Whataboutbook？—Itstoodifficultbookformetoread．A．a；aB．a；theC．the；aD．the；the６．HethePartyin１…     

情景对话一练(英文)

1．—Let薷sgooutforadrivenextSunday．—_____．A．IthinksoB．IagreeC．GoodideaD．Thankyou２．—ZhouXin，canIhavealookatyourcopyofChinaDaily？—_____．A．GreatB．Sure，goaheadC．NotatallD．You薷dbetternot３．—Wouldyoulikesomemorecoffee？—_____．A．Yes，pleaseB．Oh，no，needn薷tC．No，IneverlikecoffeeD．No，Idon薷twantit４．—MyfriendBobisatCentreSchool．Doyouknowhim？—_____．We薷reinthesameclass．A．GreatB．WellC．NiceD．Sure５．_____fromShanghaitoNewYork!A．Howlongwayitis…     

白藜芦醇对Aβ致大鼠堂学习记忆损伤的修复作用

通过观察白藜芦醇对淀粉样蛋白（Aβ25—35）诱导的空间学习记忆功能损伤的影响,探讨白藜芦醇对老年痴呆的治疗作用．方法是采用侧脑室注射Aβ25—35和腹腔注射白藜芦醇2周后进行Morris水迷宫测试．比较不同处理后的大鼠逃避潜伏期、到达平台游过距离以及目标象限内游泳所占的时间百分比．得到以下结果（1）Aβ25—35引起大鼠学习记忆的下降;（2）白藜芦醇有效地逆转Aβ25—35导致的学习记忆的损伤．因此,腹腔注射白藜芦醇有效地阻止了Aβ25—35对学习记忆的损伤．这些结果提示白藜芦醇是治疗AD学习记忆功能损伤的有效策略．     

英国A水平“力学数学”考题特点简析

英国考试项目繁多,最普遍的考试包括普通中学教育证书考试（GCSE）和GCE的A水平（A—level）考试．前者相当于中国的中考,后者则相当于中国的高考．在GCSE考试中取得5个A—C结果的学生通常会继续学习两年,即可参加A—level考试．英国大学一般根据学生至少3门A—level考试的成绩进行录取．A—Level的数学一般分为数学（包括     

中考英语中与“借”有关的单项选择题

１．CanIabikefromhim？A．lendB．returnC．giveD．borrow（天津市）２．—MayIborrowyourpen？—．A．Sure．HereyouareB．GiveyouthepenC．YoucanborrowitD．Thankyou（河北省）３．—Excuseme．CanIyourfootball，please？—Sorry．Jackitjustnow．A．borrow；lentB．borrow；borrowedC．lend；borrowedD．lend；lent（山东省）４．—Wouldyoupleasemeaneraser，Lucy？—Certainly．Hereyouare．A．borrowB．lendC．borrowedD．lent（浙江省）５．—MayIyourruler？—OK，Imgladtoittoyou．A．lend；borrowB．lend；le…     

高二上期期末自测题

Ⅰ．单项填空１．Idontthinkyoursisterwillcomebacksoon，？A．willsheB．wontsheC．doID．dontyou２．Shetookhermotheralongtotheconcert，anewdress．A．dressingB．wearingC．dressedD．wore３．Ihimtolearnaforeignlanguagebutherefused．A．persuadedB．hopedC．triedtopersuadeD．made４．—Wouldyoumindoffthelight？—Ofcoursenot．A．toturnB．metoturnC．myturningD．meturn５．Heisusedhardwork．A．toB．todoC．doingD．tohavedone６．—CanIhelpyouwiththehousework？—doitmyself．A．No，thanks，butIcantB…     

正规矩阵的性质

设H是Hermite正定矩阵，定义矩阵A的H——共轭为A’=H^-1AH．．若AA‘=A‘A，则称A为H—正规矩阵．本文得到了H—正规矩阵的一些性质．     

高中英语选择填空精选55题(英文)

１．—TomwonthefirstprizeintheEnglishcontest．—．A．SohedidB．SodidheC．Sohedid，tooD．Sodidhe，too２．Maryhavekeptherword．Iwonderwhyshechangedhermind．A．mustB．shouldC．needD．would３．—Imgoingtogetmypassportvisaed（办理护照手续）tomorrow．—！A．CheersB．GoodluckC．ComeonD．Congratulations４．TellmeyoudidbyyourselvesonSunday．A．whereB．howC．whatD．which５．Theteacherdidntknowtoblameforthebrokenwindowwhenhewasout．A．whenB．whoC．howD．what６．Speakupthestudentssittinginthe…     

高三(上)英语书面测试(Units 10-12)

Ⅰ．单项选择１．Wevewaitedabouthalfanhourforhim，buthestillhavent．A．turnedonB．turnedoffC．turneddownD．turnedup２．—Wehavebeenhere．—Whynotstayforanotherthreedays？ThenwecanspendChristmastogether．A．forafewdaysB．forfivedaysC．beforetwodaysD．afterseveraldays３．Onhearingthenews，theboysandgirlsgotwildjoy．A．atB．withC．byD．on４．—Whyareyouwonderingit？—BecauseIhaveneverheardaboutsuchathing．A．atB．forC．withD．on５．hearrived，hewenttoseehisgrandpaintown．Whichofthefollowi…     

高一(下)英语期中检测题

Ⅰ．单项填空１．I_____thathewouldbeabletoleavetomorrow，butit蒺sbeginningtolookdifficult．A．hopeB．hadhopedC．hopedD．amhoping２．Foraweekaftertheearthquake，thePLAfoundtherewasstillsomeone_____underthedestroyedbuilding．A．liveB．livedC．livingD．alive３．—Whydidn蒺tyouattendthemeetingyesterday？—Thereasonis_____Iwasill．A．forB．asC．becauseD．that４．Iwonderwherethelittleboy_____upthehabit．A．formedB．pickedC．setD．get５．—Tomorrowisaholiday.Whyareyoudoingyourhomeworknow？—…     

高二英语书面测试(Units16-18)(英文)

Ⅰ．单项选择１．Thankyouforallthetroubleafterme．A．youtooktolookB．thattookyoutolookC．youlookedD．takenyoulooking２．—Whatdidyoudoyesterdayafternoon？—Imygrandparents． ASCHOOLGARDENOFENGLISHA．calledforB．calledonC．calledatD．calledout３．IttomethatIhadleftmykeysbehind．A．hadhappenedB．washappenedC．occurredD．wasoccurred４．WhatisthetemperatureinthistowninAugust？A．generalB．averageC．ordinaryD．total５．—HaveyoueverbeentoEurope？—No，butIwishI…     

高三上学期期末自测题(英文)

Ⅰ．单项选择（２０分）１．—IheardyouplannedtoflysouthtoGuangdongnextmonth．—Well，I，butI，forthemeetinghasbeenputoff．A．hadplannedto；havegivenupB．plannedto；amgivingupC．hadplanned；gaveupD．planned；gaveup２．—WhatwereyoutalkingaboutwithJohnsohappilyasnottonoticemecomein？—．A．ProfessorSmithvisitingourschoolB．TomakeajourneytoShanghaiC．WesaidwhathappenedlastnightD．Johntoldafunnyjoke３．Ihatewhensomeonecheatsintheexam．A．thatB．oneC．theD．it４．Imbusynow，Ihavetwomorepat…     

日常情景交际英语专练(英文)

１．（NMET２００２春季）—Ivegotyourinvitation．—Oh，good．A．Canyoucome？B．Thanksalot．C．Illtakeit．D．MayIhelpyou？２．（NMET２００１）—Goodmorning，GrandHotel．—Hello，Idliketobookaroomforthenightsofthe１８thand１９th．—A．WhatcanIdoforyou？B．Justaminute，please．C．Whatsthematter？D．Atyouservice．３．（２００１春季上海）—Letsgoswimming，shallwe？—．A．ItsmypleasureB．ItdoesntmatterC．Yes，letsgoD．Agreewithyou４．（２０００春季上海）—Doyoufeelliketakingawalkinthe…     

备考定语从句的七个易错点

一、混淆定语从旬与并列句 请看下面两题： （1）He has two children,and both of ——are abroad．A．them B．whichC C．whom D．who （2）He has two children,both of——arcabroad．A．them B．which C．whom D．who 【分析】第（1）题选A,第（2）题选C。由于第（1）题中用了并列连词and,使整个句子变为并列句。and后应是一个独立的简单句,所以选A不选C;第（2）题没有并列连词and,both of whom are abroad为非限制性定语从句。     

高二英语书面测试(Units10—12)

Ⅰ．单项选择１．Iwasabouttogotoschoolmymothertoldmetopostaletter．A．whileB．asC．assoonasD．when２．Whatcanthelosthappiness？A．taketheplaceofB．takeplaceofC．takeplaceD．taketheplace３．—Johnwonthefirstprizeintheconcert．—．A．SohedidB．SodidheC．Sohe     

丹参联合西咪替丁辅助治疗小儿毛细支气管炎疗效评价

目的：探讨丹参联合西咪替丁辅助治疗小儿毛细支气管炎（毛支）的疗效及安全性。方法：2006—01—2008—03,将东风医院收治的175例毛支患儿分为治疗A组、治疗B组和对照组。3组均采用综合治疗,利巴韦林10-15mg／（kg．d）静滴;治疗A组加用丹参治疗,用法为每次0．4ml～0．6ml／（kg．d）静滴。疗程为5—7d;治疗B组,在治疗A组的基础上,加用西咪替丁,10—15mg／（kg．d）,用生理盐水稀释静滴,疗程7d。对3组疗效,以及症状、体征持续时间,住院时间等进行对照评价。结果：治疗B组治愈率明显提高,哮鸣音、湿啰音、咳嗽消失及住院时间明显缩短,与治疗A组及对照组比较差异有统计学意义（P〈0．05或P〈0．01）。结论：丹参联合西咪替丁辅助治疗小儿毛支,可缩短病程,提高治愈率,疗效确切,使用安全。