九年级24题综合练习5

九年级英语综合练习题30题答案解析1.There is a book on the table.（）book is mine.A.TheB.AC.AnD./答案解析：A。

本题考查定冠词the 的用法。

这里特指桌子上的那本书，所以用定冠词the。

选项B“a”表示泛指一本，但此处不是泛指。

选项C“an”用在元音音素开头的单词前，此处不合适。

选项 D 不填冠词不符合语法要求。

2.She is（）kind girl.A.aB.anC.theD./答案解析：A。

本题考查不定冠词的用法。

“kind”是以辅音音素开头的单词，所以用不定冠词a。

选项B“an”用于元音音素开头的单词前。

选项C“the”是定冠词，此处不是特指。

选项 D 不填冠词不符合语法要求。

3.I（）to school every day.A.goB.goesC.goingD.to go答案解析：A。

本题考查一般现在时中动词的用法。

主语是I，第一人称，谓语动词用原形go。

选项B“goes”是第三人称单数形式。

选项C“going”是现在分词形式。

选项D“to go”是动词不定式形式。

4.He（）playing football.A.likeB.likesC.likingD.to like答案解析：B。

本题考查一般现在时中第三人称单数的用法。

主语是he，第三人称单数，谓语动词用likes。

选项A“like”是原形，主语不是第一、二人称或复数时不能用。

选项C“liking”是现在分词形式。

选项D“to like”是动词不定式形式。

5.The dog is（）under the tree.A.sleepB.sleepsC.sleepingD.to sleep答案解析：C。

本题考查现在进行时的用法。

现在进行时的构成是be+动词的现在分词，所以用sleeping。

选项A“sleep”是原形。

选项B“sleeps”是第三人称单数形式。

选项D“to sleep”是动词不定式形式。

2022-2023学年人教版九年级数学上册阶段性（第21章—第24章）综合练习题（附答案）一、选择题1．下列图形是中心对称图形的是（）A．B．C．D．2．若⊙O的半径为5cm，OA＝4cm，则点A与⊙O的位置关系是（）A．点A在⊙O内B．点A在⊙O上C．点A在⊙O外D．内含3．如果﹣1是方程2x2﹣x+m＝0的一个根，则m值（）A．﹣1B．1C．3D．﹣34．如图，A，B，C是⊙O上的三个点，若∠C＝35°，则∠AOB的度数为（）A．35°B．55°C．65°D．70°5．在一个不透明的口袋中装有5个白球，若干个黑球，它们除颜色外其它完全相同，已知摸到白球概率为0.2，则袋子中黑球有多少个？（）A．15B．10C．5D．206．将抛物线y＝（x﹣1）2+2先向右平移3个单位，再向下平移5个单位得到的抛物线解析式是（）A．y＝（x﹣4）2+7B．y＝（x﹣4）2﹣3C．y＝（x+2）2+7D．y＝（x+2）2﹣3 7．新能源汽车节能、环保，越来越受消费者喜爱，各种品牌相继投放市场，我国新能源汽车近几年销量全球第一，2016年销量为50.7万辆，销量逐年增加，到2018年销量为125.6万辆．设年平均增长率为x，可列方程为（）A．50.7（1+x）2＝125.6B．125.6（1﹣x）2＝50.7C．50.7（1+2x）＝125.6D．50.7（1+x2）＝125.68．如图，AB是⊙O的直径，弦CD⊥AB，垂足为P，若CD＝8，PB＝2，则⊙O直径（）A．10B．8C．5D．39．已知二次函数y＝ax2+bx+c（a≠0）图像的一部分如图所示，给出以下结论：①abc＜0；②当x＝﹣1时，函数有最大值；③方程ax2+bx+c＝0的解是x1＝1，x2＝﹣3；④4a+2b+c＞0；⑤2a﹣b＝0；其中结论正确的个数是（）A．1B．2C．3D．410．如图，在菱形ABCD中，∠B＝60°，AB＝2．动点P从点B出发，以每秒1个单位长度的速度沿折线BA→AC运动到点C，同时动点Q从点A出发，以相同速度沿折线AC →CD运动到点D，当一个点停止运动时，另一点也随之停止．设△APQ的面积为y，运动时间为x秒．则下列图象能大致反映y与x之间函数关系的是（）A．B．C．D．二、填空题11．一个盒子内装有大小、形状相同的6个球，其中红球3个、绿球1个、白球2个，任意摸出一个球，则摸到白球的概率是．12．已知圆锥的底面直径为4cm，母线长为6cm，则此圆锥的侧面积为．13．若关于x的一元二次方程kx2﹣x﹣1＝0有两个实数根，则k的取值范围．14．在Rt△ABC中，∠C＝90°，BC＝3，AC＝4，则△ABC的外接圆半径是．15．如图，将△ABC的绕点A顺时针旋转得到△AED，点D正好落在BC边上．已知∠C＝80°，则∠EAB＝°．16．如图，正六边形ABCDEF内接于圆O，边长AB＝2，则正六边形的面积是．17．如图，点C在以O为圆心的半圆内一点，直径AB＝4，∠BCO＝90°，∠OBC＝30°，将△BOC绕圆心逆时针旋转到使点C的对应点C′在半径OA上，则边BC扫过区域（图中阴影部分）面积为.（结果保留π）三、解答题18．解一元二次方程：x2﹣2x＝9．19．如图所示，有一建筑工地从10m高的窗口A处用水管向外喷水，喷出的水呈抛物线状，如果抛物线的最高点M离墙1m，离地面m．（1）求抛物线的解析式；（2）求水流落地点B离墙的距离OB．20．已知：在△ABC中，AB＝AC．（1）求作：△ABC外接圆（要求：尺规作图，保留作图痕迹，不写作法）（2）若△ABC的外接圆的圆心O到BC边的距离为4，BC＝6，则S⊙O＝．21．为落实“垃圾分类”，环卫部门要求垃圾要按A、B、C三类分别装袋投放，其中A类指废电池、过期药品等有毒垃圾，B类指剩余食品等厨余垃圾，C类指塑料、废纸等可回收垃圾，甲、乙各投放了一袋垃圾．（1）直接写出甲投放的垃圾恰好是A类的概率；（2）求甲乙投放的垃圾恰好是同类垃圾的概率（要求画出树状图）．22．已知关于x的一元二次方程x2﹣（2k+1）x+k2+k＝0．（1）求证：无论k为任何实数，方程总有两个不相等的实数根；（2）若两个实数根x1，x2满足（x1+1）（x2+1）＝30，求k值．23．如图，已知正方形ABCD的边长为3，E、F分别是边BC、CD上的点，∠EAF＝45°．（1）求证：BE+DF＝EF；（2）当BE＝1时，求EF的长．24．如图：以△ABC的边AB为直径作⊙O，点C在⊙O上，BD是⊙O的弦，∠A＝∠CBD，过点C作CF⊥AB于点交于点G，过点C作CE∥BD交AB的延长线于点E．（1）求证：CG＝BG；（2）∠ABD＝30°，CG＝4，求BE的长．25．如图，已知抛物线y＝ax2+bx+5经过A（﹣5，0），B（﹣4，﹣3）两点，与x轴的另一个交点为C，顶点为D，连接CD．（1）求该抛物线的表达式；（2）点P为该抛物线上一动点（与点B，C不重合），设点P的横坐标为t．①当点P在直线BC的下方运动时，求△PBC的面积的最大值及点P的坐标；②该抛物线上是否存在点P，使得∠PBC＝∠BCD？若存在，求出所有点P的坐标；若不存在，请说明理由．参考答案一、选择题1．解：选项B、C、D都不能找到这样的一个点，使图形绕某一点旋转180°后与原来的图形重合，所以不是中心对称图形．选项A能找到这样的一个点，使图形绕某一点旋转180°后与原来的图形重合，所以是中心对称图形．故选：A．2．解：∵⊙O的半径为5cm，OA＝4cm，∴点A与⊙O的位置关系是：点A在⊙O内．故选：A．3．解：由题意得：把x＝﹣1代入2x2﹣x+m＝0，则2×（﹣1）2﹣（﹣1）+m＝0，解得：m＝﹣3；故选：D．4．解：∵A，B，C是⊙O上的三个点，∠C＝35°，∴∠AOB＝2∠C＝70°．故选：D．5．解：设黑球个数为x个，∵摸到白色球的频率稳定在0.2左右，∴口袋中得到白色球的概率为0.2，∴，解得：x＝20，经检验，x＝20是原方程的解．故黑球的个数为20个．故选：D．6．解：将抛物线y＝（x﹣1）2+2先向右平移3个单位，再向下平移5个单位得到的抛物线解析式是y＝（x﹣1﹣3）2+2﹣5，即y＝（x﹣4）2﹣3，故选：B．7．解：设年平均增长率为x，可列方程为：50.7（1+x）2＝125.6，故选：A．8．解：如图，连接OC．∵AB是⊙O的直径，弦CD⊥AB，CD＝8，∴∠OPC＝90°，PC＝CD＝4，∴在直角△OPC中，OC2＝42+（OC﹣2）2，解得，OC＝5．∴AB＝2OC＝10．故选：A．9．解：∵抛物线开口向下，∴a＜0，∵抛物线的对称轴为直线x＝＝﹣1，∴b＝2a＜0，2a﹣b＝0，故⑤正确，∵抛物线与y轴的交点在x轴上方，∴c＞0，∴abc＞0，所以①错误；∵抛物线开口向下，对称轴为直线x＝﹣1，∴当x＝﹣1时，函数有最大值，所以②正确；∵抛物线与x轴的一个交点坐标为（1，0），而对称轴为直线x＝﹣1，∴抛物线与x轴的另一个交点坐标为（−3，0），∴当x＝1或x＝﹣3时，函数y的值都等于0，∴方程ax2+bx+c＝0的解是：x1＝1，x2＝﹣3，所以③正确；∵x＝2时，y＜0，∴4a+2b+c＜0，所以④错误，综上，正确的有②③⑤．10．解：当0≤x≤2时，如图1，过点Q作QH⊥AB于H，由题意可得BP＝AQ＝x，∵在菱形ABCD中，∠B＝60°，AB＝2，∴AB＝BC＝AD＝CD，∠B＝∠D＝60°，∴△ABC和△ADC都是等边三角形，∴AC＝AB＝2，∠BAC＝60°＝∠ACD，∴HQ＝x，∴△APQ的面积＝y＝（2﹣x）×x＝﹣（x﹣1）2+；当2＜x≤4时，如图2，过点Q作QN⊥AC于N，由题意可得AP＝CQ＝x﹣2，∴NQ＝（x﹣2），∴△APQ的面积＝y＝（x﹣2）×（x﹣2）＝（x﹣2）2，∴该图象开口向上，对称轴为直线x＝2，∴在2＜x≤4时，y随x的增大而增大，∴当x＝4时，y有最大值为，故选：A．二、填空题11．解：由题意得：从盒子中任意摸出一个球共有6种等可能性的结果，其中，摸到白球的则摸到白球的概率为，故答案为：．12．解：圆锥的侧面积＝×2π×2×6＝12π（cm2）．故答案为12πcm2．13．解：∵关于x的一元二次方程kx2﹣x﹣1＝0有两个实数根，∴（﹣1）2+4k≥0且k≠0，解得k≥且k≠0．故答案为：k≥且k≠0．14．解：作△ABC的外接圆⊙O，∵∠C＝90°，∴AB是⊙O直径，∵AB2＝AC2+BC2，∴AB2＝42+32，∴AB＝5，∴△ABC的外接圆半径是：r＝AB＝2.5，故答案为：2.5．15．解：∵△ABC的绕点A顺时针旋转得到△AED，∴AC＝AD，∠BAC＝∠EAD，∵点D正好落在BC边上，∴∠C＝∠ADC＝80°，∴∠CAD＝180°﹣2×80°＝20°，∵∠BAE＝∠EAD﹣∠BAD，∠CAD＝∠BAC﹣∠BAD，∴∠BAE＝∠CAD，∴∠EAB＝20°．故答案为：20．16．解：连接OA，OB，作OG⊥AB交AB于点G由题意得中心角∠AOB＝60°则∠AOG＝30°，△AOB为等边三角形OA＝AB＝2，根据垂径定理得AG＝＝1，由勾股定理得，．故答案为：．17．解：∵∠BCO＝90°，∠OBC＝30°，∴OC＝OB＝1，BC＝，则边BC扫过区域的面积为：＝＝π．故答案为：π．三、解答题18．解：x2﹣2x＝9，x2﹣2x+1＝9+1，（x﹣1）2＝10，，，．19．解：（1）可建立如图所示坐标系，由题知A（0，10），顶点坐标M（1，），设y＝a（x﹣1）2+，将（0，10）代入，得a＝10﹣＝﹣，即y＝﹣（x﹣1）2+＝﹣（x2﹣2x+1）+＝﹣x2+x+10；（2）将y＝0代入得：﹣x2+x+10＝0，解得：x＝3或x＝﹣1（舍去），即OB＝3米．20．解：（1）如图，⊙O为所作；（2）连接OB，延长AO交BC于D，如图，设⊙O的半径为r，∵AB＝AC，OB＝OC，∴AD垂直平分BC，∴OD＝4，BD＝CD＝3，在Rt△OBD中，OB＝＝5，∴S⊙O＝π•52＝25π．故答案为25π．21．解：（1）∵垃圾要按A，B，C三类分别装袋，甲投放了一袋垃圾，∴甲投放的垃圾恰好是A类的概率为：；（2）如图所示：由图可知，共有9种可能结果，其中甲投放的垃圾与乙投放的垃圾是同一类的结果有3种，所以甲投放的垃圾与乙投放的垃圾是同一类的概率为＝．22．（1）证明：∵Δ＝（2k+1）2﹣4（k2+k）＝1＞0∴无论k取任何实数值，方程总有两个不相等的实数根．（2）解：∵x1+x2＝2k+1，x1x2＝k2+k，∴（x1+1）（x2+1）＝x1x2+x1+x2+1＝30，∴k2+k+2k+1+1＝30，解得：k1＝﹣7，k2＝4．23．（1）证明：∵四边形ABCD是正方形，∴AD＝AB，∠DAB＝∠D＝∠ABE＝∠C＝90°，如图，将△ADE绕点A顺时针旋转90°得到△ABG，由旋转得∠F AG＝90°，∠ABG＝∠D＝90°，∠BAG＝∠DAF，BG＝DF，AG＝AF，∵∠ABG+∠ABE＝180°，∴点G、B、E在同一条直线上，∵∠EAF＝45°，∴∠EAG＝∠BAG+∠BAE＝∠DAF+∠BAE＝45°，∴∠EAG＝∠EAF，在△EAG和△EAF中，，∴△EAG≌△EAF（SAS），∴EG＝EF，∵EG＝BE+BG＝BE+DF，∴BE+DF＝EF．（2）解：设EF＝x，∵BC＝CD＝3，BE＝1，∴DF＝EF﹣BE＝x﹣1，CE＝BC﹣BE＝2，∴CF＝CD﹣DF＝3﹣（x﹣1）＝4﹣x，∵CE2+CF2＝EF2，∴22+（4﹣x）2＝x2，解得x＝，∴EF的长为．24．解：（1）∵AB为直径，∴∠ACB＝90°，∵CF⊥AB，∴∠ACB＝∠CFB＝90°，∵∠ABC＝∠CBF，∴∠A＝∠BCF，∵∠A＝∠CBD，∴∠BCF＝∠CBD，∴CG＝BG；（2）连接AD，∵AB为直径，∴∠ADB＝90°，∵∠BAD＝30°，∴∠BAD＝60°，∵＝，∴∠DAC＝∠BAC＝∠BAD＝30°，∴＝，∵CE∥BD，∴∠E＝∠DBA＝30°，∴AC＝CE，∴，∵∠A＝∠BCF＝∠CBD＝30°，∴∠BCE＝30°，∴BE＝BC，∵CG＝4，∴BC＝，∴BE＝．25．解：（1）将点A（﹣5，0）、B（﹣4，﹣3）代入抛物线y＝ax2+bx+5，得：，解得：，∴该抛物线的表达式为：y＝x2+6x+5…①；（2）①令y＝0，得x2+6x+5＝0，解得：x1＝﹣1，x2＝﹣5，∴点C（﹣1，0），设直线BC的解析式为y＝kx+d，将点B、C的坐标代入得：，解得：，∴直线BC的解析式为y＝x+1…②，如图1，过点P作y轴的平行线交BC于点G，设点G（t，t+1），则点P（t，t2+6t+5），∴PG＝t+1﹣（t2+6t+5）＝﹣t2﹣5t﹣4，∴S△PBC＝PG•（x C﹣x B）＝×（﹣t2﹣5t﹣4）×3＝﹣t2﹣t﹣6＝﹣（t+）2+，∵−＜0，∴S△PBC有最大值，当t＝﹣时，其最大值为，此时P（﹣，﹣）；②∵y＝x2+6x+5＝（x+3）2﹣4，∴顶点D（﹣3，﹣4），设直线BP与CD交于点H，当点P在直线BC下方时，∵∠PBC＝∠BCD，∴点H在BC的中垂线上，∵线段BC的中点坐标为（﹣，﹣），过该点与BC垂直的直线的k值为﹣1，设BC中垂线的表达式为：y＝﹣x+m，将点（﹣，﹣）代入上式得﹣＝﹣（﹣）+m，解得：m＝﹣4，∴直线BC中垂线的表达式为：y＝﹣x﹣4…③，设直线CD的解析式为y＝k′x+b′，把C（﹣1，0），D（﹣3，﹣4）代入得：，解得：，∴直线CD的解析式为：y＝2x+2…④，联立③④得：，解得：，∴点H（﹣2，﹣2），设直线BH的解析式为y＝k″x+b″，则，解得：，∴直线BH的解析式为：y＝x﹣1…⑤，联立①⑤得，解得：，（舍去），故点P（﹣，﹣）；当点P（P′）在直线BC上方时，∵∠PBC＝∠BCD，∴BP′∥CD，则直线BP′的表达式为：y＝2x+s，将点B坐标代入上式并解得：s＝5，即直线BP′的表达式为：y＝2x+5…⑥，联立①⑥并解得：x＝0或﹣4（舍去﹣4），故点P（0，5）；综上所述，点P的坐标为P（﹣，﹣）或（0，5）．。

人教版九年级英语第五单元综合练习题（含答案解析）Ⅰ. 单项选择1.—Do you believe that paper is made ________ wood?—Yes, I do. And you can see that books are made ________ paper.A. from; fromB. from; ofC. of; fromD. of; of2.—Alex, did you find our old school last week?—Yes, but with much difficulty, for it has ________ changed over these years.A. completelyB. neverC. hardlyD. partly3. I found ________ relaxing to take a walk near the lake.A. itB. thoseC. itsD. that4. I like Mr. Wang's classes, because they are ________.A. lovelyB. liveC. livelyD. living5. People light the lanterns and watch them ________ the sky with their best wishes.A. turn intoB. send outC. rise intoD. put into6. I get up early every day so that I can avoid ________ the early bus.A. missB. missedC. missingD. to miss7.If you want to improve your ________ English, you should practice it ________.A. everyday; every dayB. every day; everydayC. everyday; everydayD. every day; every day8. His mother likes to buy clothes ________ in France. She thinks they are beautiful.A. makeB. makingC. madeD. are made9. The sport of basketball ________ by many people in the world.A. is shortB. is madeC. is playedD. is taught10. Our teacher will come back tomorrow ________ what he says.A. because ofB. according toC. as forD. thanks toⅡ. 完形填空It's very important that we all recycle things. In nature, everything __1__ again. For example, when an animal dies, it becomes __2__ animal's food. Nothing is wasted. But humans have created things like plastic bags __3__ can't be broken down by nature. Our rubbish kills animals and __4__ water and soil. __5__ we continue making too much rubbish, the problem will only get worse. If nature can't reuse the rubbish, we must recycle it. We should clean up the rubbish we've made because nature can't.Recycling is also the right thing to do for another reason. The earth is rich in natural __6__ like water and trees, __7__ these materials are not endless. We use up our natural materials much__8__ than the earth is able to reproduce them. For example, each year we cut __9__ more than 6，000 square miles of forest. But it takes an average of 25 years for a new tree __10__.Recycling can help us save the earth, so let's take action right now.1. A. use B. using C. is used D. used2. A. another B. other C. others D. the other3. A. who B. which C. how D. where4. A. pollutes B. polluted C. polluting D. is polluted5. A. When B. Whether C. Why D. If6. A. materials B. material C. things D. thing7. A. but B. so C. and D. or8. A. fastly B. fast C. faster D. fastest9. A. out B. down C. in D. up10. A. grows B. for growing C. growing D. to growⅢ. 阅读理解Raisins in ice cream, in chocolate bars, and in cookies ...Our favorite snacks cannot be without raisins!Have you ever thought about how people get raisins from full and juicy grapes? Dry them in the sun? Well, that's one way. But people from Xinjiang have another way. They make the best raisins in China.People there build many “blockhouses”out of earth near a grape garden. It's in these blockhouses that the best raisins are made.Many “blockhouses”are built on the hillside. They're usually three meters tall and are as big as the size of a classroom.They are quite different from the houses we live in. They have lots of holes in the wall. Inside there are many wooden shelves.After picking the grapes, people put them on the shelves. Because of the hot weather, hot dry wind gets through the holes in the wall and dries the grapes up. Thirty to forty-five days later, the fruits will turn into soft, sweet raisins!In around the year 535, people in Xinjiang started to send raisins as gifts to the emperor. This means that about 1，500 years ago people there already knew how to make raisins!阅读短文，判断正(T)误(F)。

Unit5综合训练第一卷听力部分Ⅰ.听句子,选择与所听句子相符合的图片Ⅱ.听对话和对话后面的问题,选择最佳答案6.A.France. B.Germany. C.Italy.7.A.It’s made of glass.B.It’s made of steel and wood.C.It’s made of used wood and glass.8.A.It was made in America.B.It was made in Japan.C.It was made in China.9.A.Paper cutting. B.Sky lanterns. C.Clay art.10.A.One. B.Two. C.Three.Ⅲ.听短文,选择最佳答案11.Which floor do they start from?A.The first floor.B.The second floor.C.The fourth floor.12.What can they see on the second floor?A.Technology in the old days.B.Inventions in different centuries.C.Modern inventions in the 20th century.13.Where can they have a drink?A.On the first floor.B.On the second floor.C.On the fourth floor.14.Which is the most helpful way to find more information about the museum?A.Searching the Internet.B.Asking the guide for help.C.Buying books or magazines.15.What is the speaker?A.A guide.B.A teacher.C.A worker.第二卷笔试部分Ⅳ.单项选择16.Put on your, or you may make your hands dirty.A.coatB.socksC.hatD.gloves17.—Is there a sports meeting in your school?—Yes. It in November every year.A.holdsB.heldC.will be heldD.is held18.As a volunteer, Wang Fan went to Xinjiang. Now he works at a hospital.A.localB.directC.politeD.correct19.You can easily think up a good idea to going out with him.A.preventB.avoidC.stopplete20.—How long did you the project?—About one month.A.producepleteC.suggestD.discover21.People light the lanterns and watch them the sky with their best wishes.A.turn intoB.send outC.rise intoD.put into22.The pair of on the left made of wool.A.glove; isB.gloves; areC.glove; areD.gloves; is23.Miss Zhang by all of us because her classes are always and interesting.A.loves; lovelyB.loves; livingC.is loved; livelyD.is loved; lovely24.My are made of .A.glass; glassB.glass; glassesC.glasses; glassD.glasses; glasses25.—Do you know Bing Xin?—Of course. She children’s works.A.is different fromB.is proud ofC.is famous forD.catches up withⅤ.完形填空The umbrella is a very common object. It keeps the 26 and the sun off the people. Most umbrellas can be folded up (折叠) so it is 27 to carry them.However, the umbrella was not always as 28 as it is now. In the past, it was a symbol of importance. Some African countries still use umbrellas in this 29. Someone carries an umbrella and walks behind the king or important person.Umbrellas are very old. People in different parts of the world began to 30 umbrellas at different times. The Chinese have had them for more than 3, 000 years. From there, umbrellas 31 to India and Egypt. In Greece and Rome, 32wouldn’t use them. They believed umbrellas were only for women.England was 33 the first country in Europe where common people used umbrellas against rain. The weather there is very 34 and umbrellas are very useful.Everybody uses umbrellas today. The next time you 35 one, thinking that for centuries only great men and women used them, you’ll feel you are important people, too.26.A.rain B.cloud C.air D.water27.A.lovely B.cheap C.hard D.easy28.A.light B.heavy mon D.special29.A.way B.size C.reason D.place30.A.discover e C.examine D.discuss31.A.walked B.traveled C.rode D.flew32.A.children B.parents C.men D.women33.A.probably B.already C.suddenly D.immediately34.A.sunny B.rainy C.snowy D.windy35.A.sell B.return C.borrow D.carryⅥ.阅读理解ADolls (玩偶) come in all shapes and sizes. Many people like to collect them. The reason is probably that dolls make people feel like they just gave birth to their own children.One famous doll company (公司) is Madame Alexander. The dolls it produces are usually bought by mothers for their daughters to play with. Two of the most expensive dolls they have are Kathleen Toddler whose market price today is from $125 to $300 and Binnie, which costs about $175 to $475.Cabbage Patch Kids are another kind of dolls. That compan y’s marketing policy(政策) is different because you don’t buy a doll but rather adopt (收养) one. You just have to pay a small, regular fee (定额费用). They were very successful in the 1980s.Lee Middleton also produces (生产) baby dolls, including different collections. As they are very lively, these dolls are still very popular among collectors.Another company that makes dolls is Tiny Miracles. They have a collection called the Ashton Drake Galleries that consists of (由……组成) 10-inch long babies. They are not sold in stores, so if you want one, you have to order it straight from Tiny Miracles.These are just a few of the baby dolls on the market. The best place to sell dolls is online because almost everyone has a computer and the company can make money here much more easily than by putting an ad in the newspaper. The companies don’t even have to create their own websites because they can use auction (拍卖) sites easily, meaning they just have to open an account (开户).36.Who usually buy dolls produced in Madame Alexander?A.Mothers.B.Daughters.C.Grandparents.D.Fathers.37.If you want to adopt a baby doll, you should choose .A.Lee MiddletonB.Tiny MiraclesC.Cabbage Patch KidsD.Madame Alexander38.Which of the following is an advantage (优点) for companies that sell dolls online?A.The companies need to make their own websites.B.The companies have to open an account.C.The online companies have to advertise (登广告) their goods.D.Auction sites allow them to do business easily.39.What can we infer (推测) from the passage?A.Mothers like to buy expensive dolls for their daughters.B.Kathleen Toddler is the most expensive doll in the world.C.The policy of adopting a doll was popular in the 1980s.D.Dolls make people feel that they are children.40.The writer’s purpose (目的) of writing the passage is to .A.introduce ways to make baby dollsB.introduce different kinds of baby dollsC.tell us how to choose a beautiful baby dollD.show different baby doll collectionsBThe Chinese first made paper about 2, 000 years ago. China still has pieces of paper which were made as long ago as that. But Chinese paper was not made from the wood of trees. It was made from the hair-like parts of certain plants.Paper was not made in southern Europe until about the year 1100.Scandinavia (斯堪的纳维亚半岛), which now makes a great deal of the world’s paper, did not begin to make it until 1500.It was a German named Schaeffer who found out that one could make the best paper from trees. After that, the forest countries of Sweden, Norway, Finland, and the United States became the largest paper producers. Today in Finland, which makes the best paper in the world, the paper industry is the biggest in the land. New paper-making machines are very big, and they make paper very fast. The biggest machines can make a piece of paper 300 meters long and 6 meters wide in one minute.When we think of paper, we think of newspapers, books, letters and envelopes. But there are many other uses. Only half of the paper that is made is used for books and newspapers, etc.41.Which of the following is the first to make paper?A.China.B.Scandinavia.C.Germany.D.Finland.42.Schaeffer found out that .A.the best paper was in the forestB.a German made the best paperC.wood could be made into the best paperD.the oldest paper was made 1, 500 years ago43.What does the underlined word “industry” mean in Chinese?A.国防B.教育C.农业D.工业44.According to the passage, paper is not used for .A.newspapersB.envelopesC.lettersD.food and drinks45.The second paragraph mainly talks about paper making .A.in the United StatesB.in ScandinaviaC.in EuropeD.in all forest countriesCWhen we think of money, we think of coins and paper bills. That is what money is today. But in the past people used many things instead of money. Some countries used cows. Other countries used salt, tobacco or stones. Today there are still some places in the world that do not use paper money. One place is the island of Yap in the Pacific Ocean.On the island of Yap, people use the heaviest money in the world—Yap stones. These are round, white stones with a hole in the middle. They do not originate (起源) from the island. The Yap men have to go to the islands four hundred miles away to get them. Big stones can be twelve feet high as big as two tall men. Small stones are as big as a dinner plate.Rich people do not carry the Yap stones. Servants follow the rich. Each servant carries a stone or a long stick over his shoulder. Today the people on the island use paper money for everyday shopping. But for other things they still prefer Yap stones.46.What is money today?___________________________________________________________________________ 47.What did people use instead of money in the world in the past?___________________________________________________________________________ 48.Where do people on the island of Yap get Yap stones?___________________________________________________________________________ 49.What do Yap stones look like?___________________________________________________________________________ 50.What do the Yap men buy with Yap stones today?___________________________________________________________________________ Ⅶ.词汇A.根据句意及汉语提示完成单词。