北师大版2019-2020学年八年级上学期英语期中考试试题(I)卷
2020-2021学年度(北师大版)八年级数学下册期中考试试卷(含答案)
八年级数学下册期中考试试卷满分：150分考试用时：120分钟范围：第一章《三角形的证明》～第三章《图形的平移和旋转》班级姓名得分卷Ⅰ一、选择题（本大题共15小题，每小题3分，共45.0分。
在每小题的四个选项中，只有一个选项正确，请把你认为正确的选项填涂在相应的答题卡上）1.如图，在一块长为12m，宽为6m的长方形草地上，有一条弯曲的柏油小路(小路任何地方的水平宽度都是2m)，则空白部分表示的草地面积是()A. 70m2B. 60m2C. 48m2D. 18m22.不等式x+2≥3的解集在数轴上表示正确的是()A. B.C. D.3.以下列线段a，b，c的长为三边的三角形中，不能构成直角三角形的是()A. a=9，b=40，c=41B. a=b=5，c=5√2C. a:b:c=3:4:5D. a=11，b=12，c=154.如图，在△ABC中，AB=AC，AD是△ABC的角平分线．若AB=13，AD=12，则BC的长为()A. 5B. 10C. 20D. 245.如图，DA⊥AC，DE⊥BC.若AD=5cm，DE=5cm，∠ACD=30°，则∠DCE=()A. 30°B. 40°C. 50°D. 60°6.不等式组{x−1>0,5−x≥1的整数解共有()A. 1个B. 2个C. 3个D. 4个7.下列说法不一定成立的是()A. 若a>b，则a+c>b+cB. 若a+c>b+c，则a>bC. 若a>b，则ac2>bc2D. 若ac2>bc2，则a>b8.下列图形既是轴对称图形又是中心对称图形的是()A. 等腰三角形B. 等边三角形C. 平行四边形D. 圆9.如图，将Rt△ABC绕直角顶点C顺时针旋转90°，得到△A′B′C，连接AA′，若∠1=25°，则∠BAA′的度数是()A. 55°B. 60°C. 65°D. 70°10.在如图所示的4组图形中，左边图形与右边图形成中心对称的有()A. 1组B. 2组C. 3组D. 4组11.已知关于x的不等式组{2x−a<1,x−2b>3的解集为−1<x<1，则(a+1)(b−1)的值为()A. 6B. −6C. 3D. −312.如图所示的仪器中，OD=OE，CD=CE.小州把这个仪器往直线l上一放，使点D，E落在直线l上，作直线OC，则OC⊥l，他这样判断的理由是()A. 到一个角两边距离相等的点在这个角的平分线上B. 角平分线上的点到这个角两边的距离相等C. 到线段两端点距离相等的点在这条线段的垂直平分线上D. 线段垂直平分线上的点到线段两端点的距离相等13.如图，在平面直角坐标系中，△OAB为等边三角形，AB⊥x轴，AB=4√3，点C的坐标为(2,0).P为OB边上的一个动点，则PA+PC的最小值为()A. √13B. 2√13C. 4√13D. 1214.在市举办的“划龙舟，庆端午”比赛中，甲、乙两队在比赛时的路程s(米)与时间t(分钟)之间的函数关系图象如图所示，根据图象得到下列结论，你认为正确的结论是()①这次比赛的全程是500米②乙队先到达终点③比赛中两队从出发到1.1分钟时间段，乙队的速度比甲队的速度快④乙与甲相遇时乙的速度是375米/分钟⑤在1.8分钟时，乙队追上了甲队A. ①③④B. ①②⑤C. ①②④D. ①②③④⑤15. 如图，在正方形ABCD 中，AB =3，点M 在CD 的边上，且DM =1，△AEM 与△ADM 关于AM 所在的直线对称，将△ADM 按顺时针方向绕点A 旋转90°得到△ABF ，连接EF ，则线段EF 的长为( )A. 3B. 2√3C. √13D. √15 卷Ⅱ 二、填空题（本大题共5小题，共25.0分）16. 根据平移的知识可得图中的封闭图形的周长(图中所有的角都是直角)为______．17. 已知x −y =3，若y <1，则x 的取值范围是 ．18. 如图，这是某超市自动扶梯的示意图，大厅两层之间的距离ℎ=6.5米，自动扶梯的倾角为30°.若自动扶梯运行速度v =0.5米/秒，则顾客乘自动扶梯上一层楼的时间为 秒．19. 当k 时，代数式23(k −1)的值不小于代数式1−5k−16的值．20. 如图，线段AB 和CD 关于点O 中心对称．若∠B =40°，则∠D 的度数为 ．三、解答题（本大题共7小题，共80.0分）21. （8分）(1)解不等式0.2x 0.3−6−7x 3≤1(2) 解不等式组{12x >13x x+43>3x−72−122. （8分）如图，△ACB 和△DCE 均为等腰直角三角形，∠ACB =∠DCE =90°，点A ，D ，E 在同一条直线上，连接BE ．(1)求证：AD=BE；(2)若∠CAE=15°，AD=5，求AB的长．23.（10分）如图，在△ABC中，AF⊥BC于点F.将△ABC绕点A按顺时针旋转一定角度得到△ADE，点B的对应点D恰好落在BC边上．(1)若∠B=50°，求∠DAF的度数；(2)若∠E=∠CAD，求证：AD=CD．24.（12分）如图，在正方形网格中，△ABC的顶点在格点上，请仅用无刻度直尺完成以下作图(保留作图痕迹)．(1)在图①中，作△ABC关于点O对称的△A′B′C′;(2)在图②中，作△ABC绕点A顺时针旋转一定角度后，顶点仍在格点上的△AB′C′．25.（12分）某水果店销售苹果和梨，购买1千克苹果和3千克梨共需26元，购买2千克苹果和1千克梨共需22元．(1)求每千克苹果和每千克梨的售价；(2)如果购买苹果和梨共15千克，且总价不超过100元，那么最多购买多少千克苹果？26.（14分）如图，在△ABC中，AB=AC，AD⊥BC，CE⊥AB，AE=CE.求证：(1)△AEF≌△CEB；(2)AF=2CD．27.（16分）已知∠AOB=30°，H为射线OA上一定点，OH=√3+1，P为射线OB上一点，M为线段OH上一动点，连接PM，满足∠OMP为钝角，以点P为中心，将线段PM顺时针旋转150°，得到线段PN，连接ON．(1)求证：∠OMP=∠OPN；(2)当OP=2时，点M关于点H的对称点为Q，连接QP．①用量角器和直尺以图1中OP的长为2，画出一个尽可能准确的图形。
2019-2020学年浙江省嘉兴市北京师范大学南湖附属学校八年级第一学期期中英语试卷.(含解析)
2019-2020学年浙江省嘉兴市南湖区北师大南湖附校八年级第一学期期中考试英语试卷二、完形填空。
阅读下面短文，掌握其大意，然后在各题所给的四个选项中选出一个最佳答案。
Alex was a giraffe. He lived in a zoo with his mum, dad and other giraffe friends. As Alex grew, he___16__his neck was much shorter than the others’. He began to get__17__. But his mother told him that he was __18__. She said it did not matter how short or long his __19__ was.Alex tried not to __20__ his short neck. But as his friends grew taller and taller, his neck _21__ short. Sometimes the other giraffes__22___ him, but his parents told him not to worry. They said that he should be happy with _23__ the way he was. He tried, but he could not even play in some giraffe sports. He was just too _24___.One day, one of the zoo workers came and took Alex away. Alex was afraid. Would he have to leave the zoo just __25__ he didn’t have a long neck? The zoo worker calmed (使镇静) Alex down and gave him some food. He felt__26__. Then he led Alex into another area of the zoo. There was a small __27___ between the two areas. Alex was the only giraffe that could go through it.Soon Alex’s __28__ came to see him. “I told you that you were special.” his mother said. “The zoo has made a place just for __29__ because so many people want to see how special you are!”She was right. Tourists pointed to him and felt___30___. They looked happy to see something so special at the zoo.16 A.believed B.found C.hoped D.agreed17 A.careful B.great C.interested D.worried18 A.fat B.thin C.special mon19 A.leg B.neck C.foot D.hair20 A.go over B.find out C.think about D.look for21 A.stayed B.became C.turned D.felt22 A.looked after B.fell behind ughed at D.heard of23 A.herself B.himself C.themselves D.ourselves24 A.tall B.short C.fat D.thin25 A.after B.when C.because D.before26 A.better B.worse C.sadder D.angrier27 A.box B.hole C.window D.door28 A.grandparents B.parents C.teachers D.friends29 A.him B.you D.me30 A.excited B.angry C.sad D.heavy【答案】BDCBC ACBBC ADBBA【解答】16.考察动词。
北师大版2019-2020学年七年级上学期英语期中十校联考试卷D卷
北师大版2019-2020学年七年级上学期英语期中十校联考试卷D卷姓名:________ 班级:________ 成绩:________一、单项填空。
请从A、B、C、D四个选项中选出可以填入空白处 (共5题；共10分)1. （2分）—Hi, Daniel. How was your trip to Qingdao?—________. The beaches there are very beautiful and we also enjoyed some fresh seafood.A . Not badlyB . Very muchC . Very goodD . So well2. （2分）What time ______ your best friend go to school?A . isB . doC . does3. （2分）—When did Neil Armstrong walk on the moon？—____July 20th,1969.A . InB . AtC . ForD . On4. （2分）The girl is Linda Black. Linda is her ________ name.A . firstB . lastC . familyD . middle5. （2分）- Bad luck! I lost _______ new pen yesterday.- Don't worry. I'll lend _____ to you.A . my; meB . mine; myC . mine; mineD . my; mine二、交际配对。
(共1题；共5分)6. （5分）根据短文内容，从短文后的方框ABCDEFG选项中，选出适当的选项B: Certainly. Go along this street. Turn left into Xingfu Street, and the museum is on your right.A:________B: It's about thirty minutes.A: I see.________B: Yes, you can. A No.103 bus will take you there.A:________B: Over there. Look! The bus is coming.A: Thank you very much.B:________三、完形填空。
北师大版八年级上学期期中考试 附答案
八年级上学期期中考试一、选择题1、以下列各组数据为边长作三角形，其中能组成直角三角形的是 （ ）A 、3、5、3B 、4、6、8C 、7、24、25D 、6、12、13 2、在-2)5(-、2π、4.0、71、0 、311 中无理数个数为（ ）A 、1个B 、2个C 、3个D 、4个3、的算术平方根是( ) A ．3 B ．-3 C ． D ． 4、下列式子正确的是（ ） A 、 16=±4 B 、±16 =4 C 、2)4(- =-4 D 、±2)4(- =±4 5、在直角三角形中，两边长分别为3和4，则最长边的长度为（ ） A ．5 B ．4 C ．5 D ．5或4 6、下面平行四边形不具有的性质是（ ）A 、对角线互相平分B 、两组对边分别相等C 、 对角线相等D 、相邻两角互补7、若平行四边形的周长为28㎝，两邻边之比为4：3，则其中较长的边长为（ ） A ．8㎝； B ．10㎝； C ．12㎝； D ．16㎝8、平行四边形ABCD 中，∠A 、∠B 、∠C 、∠D 的度数之比有可能是（ ） A 、1∶2∶3∶4 B 、2∶2∶3∶3 C 、2∶3∶2∶3 D 、2∶3∶3∶29、下列图形中，既是轴对称图形，又是中心对称图形（通过绕着整个图形的中心旋转180后能与原图重合的图形）的是（ ）A B C D 10、正方形具有而菱形不一定具有的性质是（ ）933±A ．对角线互相垂直B ．对角线互相平分C ．对角线相等D ．对角线平分一组对角 11、如左图，乙图案变为甲图案，需要用到（ ） A ．旋转、对称 B ．平移、对称 C ．旋转、平移 D ．旋转、旋转12、已知 ， 则 的平方根是（ ） A ． B ． -2 C ． D ．-4 二、填空题13、144的平方根是 ；64的立方根是 . 14、平行四边形ABCD 中，∠A+ ∠C=100゜，则∠B= 。
甘肃省北京师范大学庆阳实验学校2023-2024学年八年级下学期期中考试英语试题(学生版)
北师大庆阳附校八年级英语第二学期期中考试听力部分（30分）Ⅰ.听力（共20小题，满分30分）第一节（每小题1分，共5分）听下面5个句子，请从每题所给的A、B、C三个选项中选出与句子内容相符的图画。
1. A. B. C.2. A. B. C.3. A. B. C.4. A. B. C.5. A. B. C.第二节（每小题1分，共5分）听下面5个句子，从每题所给的A、B、C三个选项中选出最佳答语。
6. A. I’m coming. B. All right. C. I cut myself.7. A. For ten minutes. B. After 3 this afternoon. C. 9 friends.8. A. No problem. B. I’m 13. C. Not at all.9. A. That’s a good idea. B. No, I don’t. C. He is a doctor.10. A. No, I didn’t. B. Yes, I was. C. Yes, I did.第三节（每小题2分，共10分）听下面5段对话, 从每题所给的A、B、C三个选项中选出最佳选项。
11. What does the man advise the woman to do?A. Get an X-ray.B. Move her arm.C. Wash her arm.12. What may the girl attend?A. An educational program.B. A math training program.C. An after-school study program.13. What does the girl want to borrow?A. A football.B. A magazine.C. A CD player.14. Why can’t the boy go to play football with the girl?A. He doesn’t like playing football.B. He’ll go to see the doctor.C. He’ll do his homework.15. What was the mother doing when the boy was knocking at the door?A. She was sleeping.B. She was cooking.C. She was dancing.第四节（每小题2分，共10分）听下面一段短文，从每题所给的A、B、C三个选项中选出最佳选项。
2019-2020学年度北师大版八年级数学上册期末测试卷(含答案)
2019-2020学年度上学期期末考试试卷八年级 数学本试卷满分100分，考试时间100分钟一、选择题(本大题共8小题,每小题3分,共24分,每小题只有一个正确选项,请将这个正确的选项填在下面表格中.)1.下列各数是无理数的是( ) A.2 B.38 C.722D.0π 2.点P 的坐标是(-3，4)，则点P 在（ ）A.第一象限B.第二象限C.第三象限D.第四象限 3.下列各组数中，能作为直角三角形边长的是( ) A.4，5，6 B.12，16，20 C.5，10，13 D.8，40，414.下列命题是真命题的有( ) ①等边三角形的三个内角都相等； ②如果3325xx -=-，那么x=4； ③两个锐角之和一定是钝角； ④如果x 2>0，那么x>0；A.1个B.2个C.3个D.4个 5.有一组数据:2,5,5,6,7,这组数据的平均数为( ) A.3 B.4 C.5 D.66一个两位数,十位上的数字比个位上的数字大1,若将个位与十位上的数字对调,得到的新数比原数小9,设个位上的数字为x,十位上的数字为y,根据题意,可列方程为（ ）A.⎩⎨⎧++=+=-910101x y y x y xB.⎩⎨⎧++=+=-910101y x x y y xC.⎩⎨⎧++=+=-910101x y y x x yD.⎩⎨⎧++=+=-910101y x x y x y7.如图在△ABC 中,D 是AB 上一点,E 是AC 上一点,BE,CD 相交于点F,∠A=70°,∠ACD=20°,∠ABE=32°,则∠CFE 的度数为（ ）。
A.680B.580C.520D.4808. 两条直线y=kx+b 与y=bx+k(k,b 为常数,且k b≠0)在同一坐标系中的图像可能是（ ）。
二、填空题(本大题共8小题,每小题3分,共24分) 9绝对值最小的实数是 。
10.若一个正数的两个平方根是x-5和x+1,则x= 。
2023-2024学年北师大版三年级下学期英语期中考试试卷(能力提升)
一、选择题（每题 2 分，共20 分）1．t’s ________ o’clock. It’s time for lunch. ( ) A. one B. six C. twelve2．Look at the giraffe. _______ so tall. ( )A. It hasB. It’sC. Is it3．( )A. cake B. mother C. sister4．Do you like watermelons? ( )—________A. Yes, it is.B. Yes, I do.C. Yes, you do.5．Twelve and five is ______. ( )A. twentyB. sixteenC. seventeen6．( )A. grandmother B. grape C. grandpa7．How many ______ do you have? ( )A. crayonB. carsC. boat8．Where is my pencil box? ( )—_______A. Thanks.B. No, it isn’t.C. It’s in your desk.9．( )A. beautiful B. fish C. arm10．( )A. green B. blue C. bike二、判断题（每题 3 分，共15 分）11．ice cream （）12．判断句子与图片是(T)否(F)相符：Look at the rabbit. It has long ears. （）13．判断句子与图片是(T)否(F)相符：I go to school by bus. （）14．判断句子与图片是(T)否(F)相符：It’s a cloudy day. （）15．判断每组对话是(T)否(F)符合日常交际：—How many caps do you have? —On the floor. （）三、填空题（每题 2 分，共20 分）16．—What are those?—______ pears.17．My mother’s sister is my ______.18．I like noodles _____ (to / for) lunch.19．_____ (How / What) nice!20．toy (复数) ______21．The mouse has a long tail and it is (fat / thin).22．—What time is it?—It’s o’ clock.23．Cats eat __________ (bananas / fish).24．There are three w_______ on the desk.25．It’s t______ o’clock. It’s time for lunch.四、情景交际（每题 5 分，共20 分）26．你想让朋友进来，你可以说：( )A. Hurry up!B. Come in, please.C. Stand up.27．去朋友家玩时你看到朋友身旁站了一个小男孩，想知道这个男孩是谁，你会问朋友：( )A. Who is the boy?B. Is the girl your sister?C. Does she have long hair?28．当你把你的爸爸介绍给Miss Wu时，你应说：()A. Dad, this is Miss Wu.B. He is my dad.C. Miss Wu, this is my dad.29．_______! It’s red and black. ( )A. HelloB. Look五、连词成句（每题10 分，共10 分）30．can, animals, What, fly (?)_______________________六、选出每组单词画线部分发音不同的一项（每题 5 分，共15 分）31．( )A. milk B. six C. five 32．( )A. it B. driver C. ship 33．( )A. bide B. ripe C. robe参考答案一、选择题1．【解析】【详解】句意：现在是_____点钟。
2023北京西城北师大附中初二期中(下)英语试卷及答案
北京师大附中2022—2023学年第二学期期中考试初二英语试卷教学班姓名学号一、听力选择。
听下面四段对话或独白。
每段对话或独白后有两道小题，从所给的A、B、C三个选项中选出最佳选项。
每段对话你将听两遍。
本大题共8小题，共8分。
听一段对话，完成第1至第2小题。
1. What did Anna win in the writing competition?A. The first prize.B. The second prize.C. The third prize.2. What did Anna do every day to improve her writing?A. She kept writing a report.B. She took a writing lesson.C. She read some books about writing.听一段对话，完成第3至第4小题。
3. When will China send Shenzhou 16?A. In June.B. In May.C. In March.4. Why is David writing a letter?A. To let them know the news.B. To show he is proud of them.C. To be an astronaut on Shenzhou 16.听一段对话，完成第5至第6小题。
5. Why does the woman like the movie Ant-man?A. Because this is the most interesting movie she has watched.B. Because the actors are wonderful and the story is full of surprises.C. Because it talks about the deep love between a father and his daughter.6. What will the two speakers do next Thursday?A. Watch a play.B. Act in a film.C. Meet actors.听一段独白，完成第7至第8小题。
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北师大版2019-2020学年八年级上学期英语期中考试试题（I）卷一、单选题 (共15题；共30分)1. （2分）—Could you please tell me where the post office is?—． Go along this street．and turn left．A . Sure．B . Sorry, I don't know．C . Yes, I can．D . Sorry, I'd love to.2. （2分）— I'm sorry I can't go with you. I have to go to Shenzhen on business.— ________. Maybe next time.A . It doesn't matterB . I don't think soC . My pleasureD . Thank you3. （2分）According to a recent survey, _____three fifths of working mothers in China don't want to have a second child.A . nearlyB . mostlyC . partlyD . especially4. （2分）— Remember _________ the second _________ on your right!— OK, thanks a lot!A . take; turningB . to take; turningC . take; turnD . to take; turns5. （2分）—Could you please give me some _______ about giving speeches?—Certainly.A . informationB . suggestionsC . decisionD . advise6. （2分）New York is one of ____ in the world.A . the large citiesB . the large cityC . the largest citiesD . the largest city7. （2分）-What were you doing at that time?-I was in my room __________ my homework.A . doB . to doC . didD . doing8. （2分）If you ________ a cup with tea, you put the tea into it to make it full.A . fillB . mixC . take9. （2分）Would you ________ when you are in town?A . drop offB . drop byC . fall offD . fall by10. （2分）一 Ben and Sue aren't at home, are they?— No. They to London on business.A . have goneB . goC . have beenD . will go11. （2分）Sam is a waiter, _______ he really wants to be a singer.A . orB . ifC . butD . because12. （2分）I have a small nose. But he a big nose yours (你的鼻子).A . have; andB . has; likeC . has; andD . have; like13. （2分）—Sam, would you like to go________ a walk this afternoon?—Yes, I'd love to.A . onB . inC . byD . for14. （2分）Your shirt is so beautiful.When you it?A . do；buyB . have；boughtC . did；buyD . will；buy15. （2分）——If there are ______ people driving , there will be ______ air pollution.——Yes, the air will be fresher.A . less; lessB . less; fewerC . fewer; fewerD . fewer; less二、完形填空 (共1题；共10分)16. （10分）完形填空What can you do to keep healthy? Perhaps for children, health eating is one of the most important things. Here are some about1to eat healthily.Having breakfastA good breakfast is very important to children, It's necessary to have it in the morning.But some children often go to school 2breakfast, just because they want to sleep a little longer.3 that a good breakfast will help you study better.Having milk"My dream is that all the Chinese children can get half a kilogram of4a day." An old man says. Milk is also very5 to children's healthy. It makes children grow stronger. It's better for you to6a glass of warm milk before going to bed. That will help you 7 a good sleep.Having healthy foodHaving healthy food is the most important. That means eating lots of different8of food, especially fruits and vegetables. Don't eat too much chocolate 9 ice cream. Some of you eating fast food, but10it is not good for your health. Thy to eat healthy food as much as possible.Have healthy eating habits, and you will have a strong body.（1）A . WhatB . WhyC . WhereD . How（2）A . forB . afterC . withoutD . from（3）A . RememberB . IntroduceC . OrganizeD . Develop（4）A . waterB . milkC . juiceD . pop（5）A . naturalB . specialC . importantD . delicious （6）A . drinkB . tasteC . eatD . reach （7）A . hasB . haveC . havingD . had（8）A . kindsB . shapesC . bowlsD . baskets （9）A . andB . butC . soD . or（10）A . at lastB . as usualC . in factD . at that time三、阅读理解 (共4题；共38分)17. （10分） Bill,a 13-year-old boy, thought he had grown up to be a man. But his parents told him, "You won't be a real man until you begin to think about helping others."One moming, his parents gave him some money to buy some milk. Outside a shop he saw a homeless old~man who looked very sick. Bill went to him and asked. "what's wrong with you?"The old man answered, "I'm hungry,I haven't had any food for two days".“Let's go to the restaurant."When they got there, Bill asked the waiter to bring out bread and coffee to the old man. The old man finished the meal quickly. Afier the waiter took away the plate and the cup, the old man said, "Sorry for giving you too much trouble. I'm fine now. I'Il never forget your kindness! You're a very good young man."Bill was happy when he heard this. Just when he wanted to pay for the meal, the waiter came.To their surprise, Bill and the old man leamed that their food was free because it was the birthday of the boss, and they were the first customers that day.（1）How old was Bill?A . Eleven.B . TwelveC . ThirteenD . Fourteen.（2）Bill's parents said when he thought ofA . helping himself.B . helping othersC . making moneyD . being friendly（3）How long haven't the old man had food?A . Two daysB . Two hoursC . One day.D . One hour.（4）What did the old man think of Bill?A . Kind and tall.B . Kind and goodC . Happy and handsomeD . Happy and cool.（5）The food in the restaurant is free because that day was birthday.A . Bill'sB . the old man'sC . the waiter'sD . the boss's18. （10分）阅读理解People already know a lot about animals. However, there are still some things about animals that may surprise you. Here are some facts about animals you probably didn't know.Cows do have best friends and feel stressed when they are separated. Scientists have found that cows are very social animals and a cow always makes friends with other cows. When a cow is with its friends, it feels relaxed, compared with when it is alone.During breeding season, a male penguin (企鹅) will offer a small stone to a female penguin as a gift. If she takes it, they will become partners. When the female penguin lays an egg, she and her partner may carry it on their feet, because some penguins don't build nests (鸟巢).Crocodiles (鳄鱼) swallow (吞) stones. Crocodiles always swallow their food instead of eating it like other animals. They swallow stones which break the food into very small pieces in their stomachs. These stones may stay in their stomachs all their lives.Elephants use plants to treat pain or other illness. Scientists once found a pregnant (怀孕的) elephant in Africa who ate a kind of plant which was not part of her normal food. Four days later, she gave birth to a baby elephant. The same plant was used by the local pregnant women.根据短文内容,判断下列句子正误。