人教版七年级数学上册期末试卷及答案

Dothefollowingthreemainpoints:1findouttheweak.Reviewprocessistosumuptheknowledgeontheonehand,maketheknowledgemorecoherentsystemandregularity,butalsoletthestudentsthemselves,looksupthedeficiencies.So,weteacherstounderstandthestudents'knowledgeofthesituationpriortothereview,studentsnotonlyfoundwidespreaddeficiencies,butalsosomeshortcomings,forthesewelldesignedprograms,reasonablearrangementoftime,thisreviewismoretargetedandmoreeffective.Forexample,youcandesignaformforinvestigation,understandingstudents'weaknessesineachknowledge,putitasareviewofkey,combinedwiththeproblemoftextbookstoreview,bothtoavoidcastinganettihaizhanshu,andimprovetheefficiencyofreview.2,goodcollation.Throughsixyearsofstudy,studentsinthebasics,readingmethod,exercises,andsoalreadyhaveacertaindegreeofaccumulation,thereviewstage,teachersshouldknowhowtoguidethestudentstolabeltheaccumulation,process,formasystemofknowledgenetworks.Exercisesforstudentstoberepresentative,fine,complete,tolive,andearnestlydoaproblemlearningamethod,classofpasswastogettimeefficientreviewresults.3,payattentiontouse.Theaccumulationofknowledgeisultimatelytouse,therefore,reviewthesituationandlifesituationtobecreatedinavarietyoflanguages,guidestudentsonthebasisofthepreviousaccumulationofknowledgetousetothemaximum,andreallyapplywhattheyhavelearned.Second,reviewthecontentandstrategyofthefirstpart:thebasics(a)1,reviewthemainpointsofHanyuPinyinisabletoreciteandwritedownthealphabetofHanyuPinyin;accuratespellingpronunciation(afterreadingcacuminal,nasalsound,light,andretroflexsounds),thecorrectwriteconsonants,vowelsandsyllables.2,.maintypesaccordingtotheorderofthealphabetofHanyuPinyinalphabeticalorder;fillintheappropriateuppercaseandlowercaseletters;seephoneticwritingwords;pinyintowritesentenceswithdottoselectthecorrectpronunciationoftheword;tobringsomeinitialconsonantsorvowels,wordselection.Second,themaintypesofwords(1)Rubywrittenwords;(2)tobringWordtoselectthecorrectpronunciation;(3)useasequencerandradicalcharacterlookupmethod无论是统筹推进“五位一体”总体布局，还是全力推进全面建成小康社会进程，乃至实现“两个一百年”奋斗目标，都需要不忘初心，继续前行。Ａ．Ｂ．Ｃ．Ｄ．2011—2012学年度上学期期末试题初一数学试题题目一二三总分得分一、选择题：（本大题共10小题，每小题3分，共30分．）1．如果＋20%表示增加20%，那么－6%表示()A．增加14%B．增加6%C．减少6%D．减少26%2．13的倒数是()A．3B．13C．-3D．133、如右图是某一立方体的侧面展开图，则该立方体是()4、青藏高原是世界上海拔最高的高原，它的面积约为2500000平方千米.将2500000用科学记数法表示为（）Ａ．70.2510Ｂ．72.510Ｃ．62.510Ｄ．525105、已知代数式3y2－2y+6的值是8，那么32y2－y+1的值是()A．1B．2C．3D．4Dothefollowingthreemainpoints:1findouttheweak.Reviewprocessistosumuptheknowledgeontheonehand,maketheknowledgemorecoherentsystemandregularity,butalsoletthestudentsthemselves,looksupthedeficiencies.So,weteacherstounderstandthestudents'knowledgeofthesituationpriortothereview,studentsnotonlyfoundwidespreaddeficiencies,butalsosomeshortcomings,forthesewelldesignedprograms,reasonablearrangementoftime,thisreviewismoretargetedandmoreeffective.Forexample,youcandesignaformforinvestigation,understandingstudents'weaknessesineachknowledge,putitasareviewofkey,combinedwiththeproblemoftextbookstoreview,bothtoavoidcastinganettihaizhanshu,andimprovetheefficiencyofreview.2,goodcollation.Throughsixyearsofstudy,studentsinthebasics,readingmethod,exercises,andsoalreadyhaveacertaindegreeofaccumulation,thereviewstage,teachersshouldknowhowtoguidethestudentstolabeltheaccumulation,process,formasystemofknowledgenetworks.Exercisesforstudentstoberepresentative,fine,complete,tolive,andearnestlydoaproblemlearningamethod,classofpasswastogettimeefficientreviewresults.3,payattentiontouse.Theaccumulationofknowledgeisultimatelytouse,therefore,reviewthesituationandlifesituationtobecreatedinavarietyoflanguages,guidestudentsonthebasisofthepreviousaccumulationofknowledgetousetothemaximum,andreallyapplywhattheyhavelearned.Second,reviewthecontentandstrategyofthefirstpart:thebasics(a)1,reviewthemainpointsofHanyuPinyinisabletoreciteandwritedownthealphabetofHanyuPinyin;accuratespellingpronunciation(afterreadingcacuminal,nasalsound,light,andretroflexsounds),thecorrectwriteconsonants,vowelsandsyllables.2,.maintypesaccordingtotheorderofthealphabetofHanyuPinyinalphabeticalorder;fillintheappropriateuppercaseandlowercaseletters;seephoneticwritingwords;pinyintowritesentenceswithdottoselectthecorrectpronunciationoftheword;tobringsomeinitialconsonantsorvowels,wordselection.Second,themaintypesofwords(1)Rubywrittenwords;(2)tobringWordtoselectthecorrectpronunciation;(3)useasequencerandradicalcharacterlookupmethod无论是统筹推进“五位一体”总体布局，还是全力推进全面建成小康社会进程，乃至实现“两个一百年”奋斗目标，都需要不忘初心，继续前行。26、2、在│-2│，-│0│，（-2）5，-│-2│，-（-2）这5个数中负数共有()A．1个B．2个C．3个D．4个7．在解方程5113xx时，去分母后正确的是（）A．5x＝15－3(x－1)B．x＝1－(3x－1)C．5x＝1－3(x－1)D．5x＝3－3(x－1)8．如果xy3，)1(2yz，那么x－y＋z等于（）A．4x－1B．4x－2C．5x－1D．5x－29．如图1，把一个长为m、宽为n的长方形（mn）沿虚线剪开，拼接成图2，成为在一角去掉一个小正方形后的一个大正方形，则去掉的小正方形的边长为（）A．2mnB．mnC．2mD．2n图1图2第9题10．如图，是一个几何体从正面、左面、上面看得到的平面图形，下列说法错误的是()第10题A．这是一个棱锥B．这个几何体有4个面C．这个几何体有5个顶点D．这个几何体有8条棱nnmnDothefollowingthreemainpoints:1findouttheweak.Reviewprocessistosumuptheknowledgeontheonehand,maketheknowledgemorecoherentsystemandregularity,butalsoletthestudentsthemselves,looksupthedeficiencies.So,wete