启航新课堂七年级上.docx

1、启航新课堂七年级上三一文库（XX）启航新课堂七年级上*篇一：启航新课堂七年级数学上册3单元t-ment启航新课堂单元测试请支持正版第三章字母表示数（总分：150分；时间：100分）姓名学号成绩一、选择题（每小题3分，共30分）1用代数式表示“2m与5的差”为（）2m?55?2m2(m?5)2(5?m)2某商场2006年的销售利润为a，预计以后每年比上一年增长b%，那么2008年该商场的销售利润将是（）Aa?1?b?Ba?1?b%?Ca?a?b%?222Da?ab23当x?2时，代数式2x?3的值为（）1?1534下列各组中的两项不属于同类项的是（）A3m2n3和?m2n3xy和25xy51C1

2、和4BDa2和x3A3a?2b?5abB5y?3y?2C7a?a?7a2D3x2y?2yx2?x2y6化简?0?(x?3y)?的结果是（）Ax?3yB?x?3yC?x?3yDx?3y7一个长方形的周长为30，若长方形的一边长为x，则此长方形的面积是（）x(15?x)x(30?x)x(30?2x)x(15?x)8若a?b,b?2c，则a?b?2c等于（）033a?3a9为了做一个试管架，在长为acm(a?6cm)的木板上钻3个小孔（如图），每个小孔的直径为2cm，则x等于（）a?3a?3cmcm44a?6a?6cmcm44第9题图10若代数式(m?2)x2?5y2?3的值与字母x的取值无关，则m

3、的值是（）A2B2C3D0二、填空题（每小题3分，共30分）11x平方的3倍与?5的差，用代数式表示为；当x?1时，代数式的值为12正方体的棱长为a，则它的表面积为；若a?2cm，则表面积为13某班a名同学参加植树活动，其中男生b名(b?a)若只由男生完成，每人需植树15棵；若只由女生完成，则每人需植树棵1114一根钢筋长a米，第一次用去了全长的，第二次用去了余下的，则剩余32部分的长度为米（结果要化简）15代数式5m?2的实际意义可表示为1?x216当x?1时，代数式的值是2(1?x)17合并同类项：15x?4x?10x?；?p2?p2?p2?18?6x?7y?3的相反数是19代数式a2?a

4、?3的值为7，则代数式2a2?2a?3的值为20用黑白两种颜色正方形的纸片按黑色纸片数逐渐加l的规律拼成一列图案：（1）第4个图案中有白色纸片张；（2）第n个图案中有白色纸片张三、解答题(共40分)：21化简（每小题4分，共16分）：2（1）?9y?6x2?3(y?x2)；（2）5(a2b?3ab2)?2(a2b?7ab2)；322222?7x?(4x?3)?2x5a?a?(5a?2a)?2(a?3a)?（3）3x2?；（4）?3522（6分）先化简，再求值：m?(m?1)?3(4?m)，其中m?32223（8分）（1）根据下列条件，分别求代数式4(x?y)?5(x?y)?11(x?y)的值：

5、x?3,y?1；x?0,y?2；x?0.5,y?2.5；（2）观察上述计算结果，请你给出一组x,y的值，使得上述代数式的值与（1）中的计算结果相同24（10分）初一年级学生在5名教师的带领下去公园秋游，公园的门票为每人30元.现有两种优惠方案，甲方案：带队教师免费，学生按8折收费；乙方案：师生都7.5折收费.（1）若有m名学生，用代数式表示两种优惠方案各需多少元？（2）当m?70时，采用哪种方案优惠？（3）当m?100时，采用哪种方案优惠？*篇二：启航新课堂七年级下册英语答案启航新课堂七年级下册英语答案单项选择BCABDBBBAACDABC完形填空AADBCBADCB阅读理解CDABATFFF

6、F补全对话ThisisPeter.Areyoufreethistomorrow?AreyoufreethisSunday?Yes,IdlovetoIllcallhere词汇speakcarryflyingcookafraid汉译英ThiscallaboutwouldhaveapicnicWhatupgofishingSectionA1.unday2.orget3.free4.kite5.ring1.togo2.shopping3.toke4.Are5.us1.Pleasetellhimaboutthepicnic2.Dontdorgettobringyourguitar3.Wouldyouto

7、gofishing4.Whatdoyouthingofthisgreenskirt5.AreyoufreethisSundaySectionB1.CDEAB1.DDBAAFGCEBSectionC1.tohaveapicnicwith2.veryhappy3.goingfishing4.afraidhaveno5.asktocallbackWouldliketovisit2.Whatwouldyou3.donthave4.Doeshave5.wanttoJBACEIDGHFSectionD1.calls2.shopping3.songs4.you5.having6.tell1.Would2.c

8、an3.can4.May5.Would1.Whataboutcook2.athome3.like4.Whoare5.cantseeany*篇三：启航新课堂七年级下册英语试题启航新课堂七年级下册英语试题一）单项选择1.Lets_afterschool.A.toplaybasketballB.playbasketballC.playa2._seethegiraffes.A.LetB.LetweC.Lets3.-_doyoulikeanimals?-_theyarecute.A.Why,BecauseB.Why,SoC.What,Because4.Doyouwant_?A.eatriceB.toea

9、triceC.toeatrices5.A:Letsseethemonkeysfirst.B:_?A:Becausetheyreinteresting.A.WhyB.WhatC.Where6._thesetigers_from?A.Where,areB.Where,comeC.Whereare,/7.Ilikekoalasbecausetheyare_friendly.A.akindofB.kindofC.kindsof8.Whereishe_?SouthAfrica.A.forB.fromC.like9.-_he_breakfastathome?-Yes.A.Dose,haveB.Does,h

10、aveC.Does,has10._pandasfromChina?A.AreB.IsC.Do11.Theelephantsare_greatdangerinAfrica.A.areB.isC.doesD.do12.Ilike_,butthisafternoonIdontlike_.A.swimming;swimmingB.toswim;toswimC.swimming;toswimD.toswim;swimming13.Thetreesaregreen.Dont_A.cutdownthemB.cutthemupC.cutthemdowmD.cutupthem14.Oneoftheboys_pe

11、t.Thepetisreallycute.A.haveB.hasC.keepD.save(二)连词成句。1.lions,the,let,first,see,us_.2.pandas,why,want,see,to,do,the,you_?3.they,are,ugly,because_.4.SouthAfrica,lions,from,are,those_.（三）按要求完成句子1.Ilikemonkeysbecausetheyarecute.（就划线部分提问）_youlikemonkeys?2.usletpandassee.(连词成句)_3.doyoutigerswhylike?（连词成句）_

12、4.ThekoalacomesfromAustralia.(变否定句)Thekoala_fromAustralia.5.Helikespandasverymuch.(变一般疑问句)_he_pandasverymuch?6.Thebeautifulgirlwantstoseegiraffes.(对划线部分提问)_doestheshygirlwanttosee?7.PandasarefromChina.(同义句转换)Pandas_China.（四）阅读理解AThereisanelephantandamonkey.Theyrefriends,butonedaytheywanttoknowwhoiss

13、tronger（更壮）.Oneofthemsays,“Whocangetapplesoverthere,whoisstronger.”Theresariveroverthere.Monkeysays,“Icantswim.”Elephantsays,“Icanswim.Pleasesitonmyback.”Theygoacrosstheriver.Theappletreesareveryhigh.Theelephantcantreach（够着）theapples.Themonkeyclimbs（爬）upthetreeandgetsmanyapples.Nowtheyknowtheyshould

14、helpeachother.根据短文内容选择最佳答案。()1.Theelephantandthemonkeywanttoknow_.A.whoissmarterB.whoishigherC.whocanswimD.whoisstronger()2._cantswim.A.TheelephantB.ThemonkeyC.ThebiganimalsD.Thesmallanimals()3._cantreachtheapples.A.TheelephantB.ThemonkeyC.ThehighanimalsD.Theshortanimals()4.Atlastthemonkeygoesacross

15、theriverwiththehelpof_.A.theelephantB.themonkeyC.ananimalD.aboat()5.Fromthestoryweshould_.A.learnfromtheelephantB.learnfromthemonkeyC.AandBD.helpeachotherBHandancomesfromChina,sheisacleverandbeautifulgirl.Shestudiesinamiddleschool.Shehasfourpenpals.Theyarefromdifferentcountriesandlikedifferentanimal

16、s.LindaisfromAmerica.Herfavoriteanimalisthepenguin.Thepenguinlikesiceverymuch.LilycomesfromAustralia.Thekoalaisherfavoriteanimal.Thekoalalikestoeatleaves.Anditsleepsduringtheday,butitgetsupatnight.BobisfromIndia.Hisfavoriteanimalistheelephant.Grassistheelephantsfavoritefood.TomisaCanadianboy.Helikes

17、thetigerbest.Thetigerlikestoeatmeat.WhatisHandansfavoriteanimal?Itisthepanda.Bambooispandasfavorite.NameCountryFavoriteanimalWhatdotheanimalslike?Handan1._Panda2._3._America4._ice5._Australiakoala6._TomCanada7._8._9._India10._grassCPeoplecomebacktotheirhomestospendthedaywiththeirparentsortheirchildr

18、en.OnChristmasDaybellsringeverywhere.TheringingbellstellpeopleChristmasiscoming.Peoplesinganddancedayandnight.Theyhaveagoodtime.MostfamiliesbuyaChristmastreefortheirchildren.Andtherearesomepresentshanging(挂)fromthetreehereandthere.Peoplealsoputpresentsinchildrensstockings.Inmanyplaces,FatherChristma

19、shimselfbringspresentstothem.Heisakindmanandinredclothes.Thereisabigbagonhisback.Inittherearealotofpresents.Christmasisalsoadaywhenpeopleenjoyallkindsoffood.Butsomepoorpeoplehavenohomesandhavenofoodtoeat.Theydieofcoldandhunger（饥饿）onChristmasDay.根据短文内容判断正(T)误(F)。()1.ChrismasisaveryimportantdayinEngli

20、sh-speakingcountriesinayear.()2.AllpeoplehaveagoodtimeonChristmasDay.()3.FatherChristmaswearsredclothes.()4.TherearealotofChristmastreesinFatherChristmasbag.()5.SomepoorpeopledieonChristmasDaybecausetheyhavenohomesandnofoodtoeat.（五）从方框中选择最佳选项完成对话.A.ChinaB.Becausetheyarecute.C.OK.Letsgo.D.Theyarenexttothegiraffes.启航新课堂七年级上