淮安市淮阴区东城开明中学2019-2020年上学期 8A Unit 6 Reading (Ⅲ)学案
淮安市淮阴区东城开明中学2019-2020年上学期试题 8A Unit6 单元测试(含答案)
单元测试（八上 Unit6）班级学号姓名得分一、听力部分（15分）A）听五段短对话，选择正确答案。
（听两遍）( ) 1. What did Kitty forget to take?A. Some waterB. The mobile phoneC. The notebook ( ) 2. How many types of birds did Daniel learn about yesterday?A. ThreeB. FourC. Five( ) 3. What does Millie think of the bird show?A. It’s boring.B. It’s wonderful.C. It’ s uninteresting. ( ) 4. Will Amy teach Tom how to use the camera this afternoon?A. No, she won’t.B. Yes, she will.C. I’m not sure. ( ) 5. What will Tony do during the holiday?A. To visit friends.B. To go fishing.C. To go birdwatching.B) 听两组长对话，选择正确的答案。
（听两遍）听第一组对话，回答6-7题。
( ) 6. What color is the pair of binoculars?A. Black.B. Green.C. We don’t know. ( ) 7. Where is the pair of binoculars made?A. In Japan.B. In America.C. In China.听第二组对话，回答8-10题。
( ) 8. Who did Kate go to Yangcheng Nature Reserve with?A. Her friendsB. Her classmates.C. Her parents. ( ) 9. How long did they stay in the reserve?A. For over three hours.B. For three hours.C. For about three hours ( ) 10. How did they come back?A. By bike.B. By bus.C. On foot.C) 听一篇短文，选择正确答案。
2019-2020学年江苏省淮安市开明中学八上期中模拟数学试卷(无答案)
2019-2020学学学学学学学学学学学学学学学学学学学学学学一、选择题1.下列运算正确的是( )A. √4=±2B. √(−5)2=−5C. (−√7)2=7D. (√−3)2=−32.下列各数：1,−π,−√3,0．3⋅,−0.1010010001…(两个1之间依次多一个0),−√49中无7理数的个数为( )A. 2个B. 3个C. 4个D. 5个3.下列说法中,不正确的是( )①全等形的面积相等；②形状相同的两个三角形是全等三角形；③全等三角形的对应边,对应角相等；④若两个三角形全等,则其中一个三角形一定是由另一个三角形旋转得到的．A. ①与②B. ③与④C. ①与③D. ②与④4.如图,点A、D、C、E在同一条直线上,AB∥EF,AB=EF,∠B=∠F,AE=10,AC=6,则CD的长为( )A. 2B. 4C. 4.5D. 35.如图,在△ABC中,BE、CE分别是∠ABC和∠ACB的平分线,过点E作DF∥BC交AB于D,交AC于F,若AB=4,AC=3,则△ADF周长为( )A. 6B. 7C. 8D. 106.如图,在△ABC中,AB=AC,,BD平分∠ABC,图中的等腰三角形有( )。
A. 1个B. 2个C. 3个D. 4个7.下列各组数,属于勾股数的是( )A. 4,5,6B. 5,10,13C. 3,4,5D. 8,39,408.如图所示,某人到岛上去探宝,从A处登陆后先往北走9km,又往东走6km,再折回向北走3km,往西一拐,仅走1km就找到宝藏.问登陆点A与宝藏埋藏点B之间的距离是( )km．A. 10B. 11C. 12D. 139.将一根24cm的筷子,置于底面直径为15cm,高8cm的圆柱形水杯中,如图所示,设筷子露在杯子外面的长度hcm,则h的取值范围是( )A. ℎ≤17cmB. ℎ≥8cmC. 15cm≤ℎ≤16cmD. 7cm≤ℎ≤16cm二、填空题10.16的平方根是______．11.写出一个比3大且比4小的无理数：______．12.已知：m、n为两个连续的整数,且m<√11<n,则m+n=______．13.在如图所示的2×2方格中,连接AB、AC,则∠1+∠2=______度.14.如图,AD=AE,BE=CD,,,则∠CAE的度数是________．15.如图,在△ABC中,,,AD⊥BC于D,若BC=16,则CD=_____．16.如图,长为24cm的弹性皮筋绷直放置在直线l上,固定两端A和B,然后把中点C向上拉升5cm到D点,则弹性皮筋被拉长了______．17.游泳员小明横渡一条河,由于水流的影响,实际上岸地点C偏离欲达到点B60米,结果他在水中实际游了100米,这条河宽为______米.18.如图,长方体的底面边长均为3cm,高为5cm,如果用一根细线从点A开始经过4个侧面缠绕一圈达到点B,那么所用细线最短需要____cm．三、计算题3．19.计算：(−1)2−√25+√2720. 计算：√16−√273+3−18+√94．21. 解方程(1)(2x −1)2=169(2)3(x +2)3=−81四、解答题22. 已知x 的两个不同的平方根分别是a +3和2a −15,且 √x +y −23=4,求x ,y 的值．23. 已知实数a ,b ,c 满足√a −7+|b −5√2|+(c −1)2=0．(1)求a ,b ,c 的值；(2)判断以a ,b ,c 为边能否构成三角形？若能构成三角形,判别此三角形的形状,并求出三角形的面积；若不能,请说明理由．24. 如图,点E ,F 在AB 上,AD =BC ,∠A =∠B ,AE =BF.求证：△ADF≌△BCE ．25.如图,已知：E是∠AOB的平分线上一点,EC⊥OB,ED⊥OA,C、D是垂足,连接CD,且交OE于点F．(1)求证：OE是CD的垂直平分线．(2)若,请你探究OE,EF之间有什么数量关系？并证明你的结论．26.在等腰△ABC中,AB=AC,,CD是△ABC的高,P是线段AC(不包括端点A,C)上一动点,以DP为一腰,D为直角顶点(D、P、E三点逆时针)作等腰直角△DPE,连接AE．(1)如图1,点P在运动过程中,∠EAD=______,写出PC和AE的数量关系；(2)如图2,连接BE.如果AB=4,CP=√2,求出此时BE的长．。
江苏省淮阴中学开明分校2019-2020年八上Unit6Grammar同步测试(word版含答案.pdf
Unit 6 Grammar (IV)班级________________ 姓名________________ 学号_______________一、根据句意用所给的汉语或单词的适当形式填空。
1. Look! Suzy is making a card _________________________ (celebrate) his brother’s b2.The article helps people __________________ (understand) the importance of protecting bears.3. __________________________ (study) the birds, they go to Zhalong Nature Reserve together.4. The government made laws __________________ (prevent) people from letting off more CO2.5. The social worker asked us ________________________ (not shout) in the community center.6. The birds need some students ________________________ (feed) them more food.7. She told her son many interesting stories to make him ______________________ (feel) happy.8. I heard them _________________________ (chat) happily in the garden when I passed by.9. Mr. Wu told the girls ________________________ ( not sing) in the classroom.10. _________________________ (win) the chess competition, he practised hard every day.二、单项选择。
江苏省淮阴中学开明分校2019-2020年八上Unit 6 Reading完形阅读同步测试(word
Unit 6 Reading (II)班级________________ 姓名________________ 学号_________________一、完形填空。
The first thing in the morning, I check Twitter (推特), only to see how I’ve fallen behind (落后). A workmate has written a new book. My hero has finished a big project. One of my old college friends has posted a video for an online program, and they all look successful(成功的) 1 I’m still in bed and tired.Am I 2 falling behind? Is anyone really being successful? Did these people post any of these things in order to make me feel sad? Of course not. But if I am not careful, my Twitter will tell me all the things that I’m not doing and all the 3 that have not come true.In fact, this isn’t Twitter’s 4 . It’s just a comparison (比较) problem. It’s 5 I think about it. And I know it’s not just me. Our culture is full of comparisons, and it’s really 6 not to look around at what 7 people are doing with their time, and ask, “What about 8 ?”But I have learned one thing: Don’t compare your 9 to someon e else’s outsides. You don’t know how long it 10 others to get there. Don’t act 11 it was easy, or just because of luck. It’s always much easier to look at someone “up there” and be jealous (嫉妒) of what they have than to be 12 about others’ lives and make yours better. Anyway, it’s always more important to focus on yourself and move on!( ) 1. A. if B. while C. because D. so( ) 2. A. really B. nearly C. almost D. mainly( ) 3. A. projects B. dreams C. jobs D. lives( ) 4. A. meaning B. mistake C. hope D. goal( ) 5. A. where B. when C. why D. how( ) 6. A. easy B. different C. difficult D. special( ) 7. A. other B. another C. the other D. others( ) 8. A. you B. me C. him D. her( ) 9.A. questions B. problems C. insides D. outsides( )10.A. spent B. paid C. waited D. took( )11.A. like B. as C. then D. than( )12.A. good B. bad C. happy D. surprised二、阅读理解My hoof(蹄) was badly hurt. I couldn’t work. I stayed in a field. A week later, the lord and York came into the field. They watched me move. “That horse is useless,” the lord said. “We can’t keep him here. We must sell him.” A week later, York led me away. York’s friend bought me. I was very sad and so was Ginger. York’s friend lived in another town.My new owner had many horses and coaches(四轮大马车). Some of them made us wear tight reins. Other drivers were careless. One evening, I was pulling a coach with another horse. His name was Rory. We often worked together. We came to a corner. I heard the sound of another horse and coach. It was coming towards us. Its driver was careless. This coach hit Rory. Rory was badly hurt. He was sick for a long time.I now worked with Peggy. She was a beautiful horse but walked strangely. “I walked strangely,” she told me, “because my legs are short. My first owner didn’t worry about this. He didn’t make me move quickly. Then he sold me to a farmer. Some farmers are good owners. This one was not. He didn’t care about me. He cared only about going quickly. He was always whipping(抽打) me. One day, I fell. He also fell and was badly hurt.”My next owner was Mr. Barry. The name of his stableman(马夫) was Fletcher. At first, Fletcher gave me good food. Then he stopped giving me good food. He gave me only grass. He took my food away and gave it to his rabbits. One day, Mr. Barry’s friend came to see him. “Your horse doesn’t look well,” he said. “He’s too thin. He’s not getting enough food to eat.”“I buy a lot of food for him,”Mr. Barry said. “Perhaps your stableman is stealing your horse’s food,” Mr. Barry’s friend said. Mr. Barry found out the truth. He sent for the police. They took Fletcher away.( )13. The lord sold Black Beauty because __________.A. his hoof was hurtB. Black Beauty couldn’t workC. he thought Beauty was uselessD. All of the above( ) 14. Black Beauty first worked with __________ after being sold to York’s friend.A. GingerB. RoryC. PeggyD. Merrylegs( ) 15. Where did Rory get hurt one evening?A. At a corner.B. On the grass.C. In a field.D. In the coach. ( )16. What did Fletcher do to Black Beauty?A. He made him wear tight reins.B. He sold him to a farmer.C. He always whipped him.D. He stole his food.( ) 17. Which of the following is TRUE, according to the passage?A. Black Beauty lived in the same town after being sold to York’s friend.B. None of York’s friend’s drivers were good.C. Peggy walked strangely because of her short legs.D. Mr. Barry knew his stableman stole his horse’s food in the beginning.三、任务型阅读Do you like travelling? Do you want to find ways to travel for less or even for free? Here are some ways of making money while traveling.● Au pair means an extra pair of hands. If you like working with young children, there are local families who are looking for au pairs to help look after their children. As an au pair, you can receive free room and board (食宿) as well as some pocket money.●Summer camps can be a great way for you to travel around America. Every summer, hundreds of American summer camps fill up with children. You can work as a camp teacher. This job needs you to take care of the children and play with them. You can get free room and board and a good payment (报酬).●It’s a good way to make money as a farm worker. The jobs are usually easy such as picking grapes and milking the cows. Usually you can get a free room and fresh food for working on the farm for a few hours.●If you can sing or dance well, you may find a job in cruise ships (游轮) more easily. Working in a cruise ship usually can make a lot of money. Of course you can also have the free room and board in the ship.18. If you like young children, __________________________ of their children in local familiescan make you receive free room, board and some ____________________________.19. To travel around _________________________________________, you can work as a_________________________________ in summer camps.20. It usually takes you _____________________ to pick grapes and ______________________on a farm and then you’ll get paid easily.21. It’ll be ____________________________ for you to find a job in cruise ships if you’re goodat __________________________________.22.There are ways in all in this passage to make money while travelling, but thepayments you can get are not as each other.Unit 6 Reading (II)参考答案1-4 BABB5-8 DCAB9-12 CDAC13-17 DBADC18.helping (to) take care,pocket money19.America,camp teacher20.a few hours,milk the cows21.easier,singing or dancing22.4/fourthe same。
江苏省淮阴中学开明分校2019-...
江苏省淮阴中学开明分校2019-...Unit 8 Integrated Skills (V)班级___________________ 姓名____________________ 学号_____________________一、根据句意用所给汉语或单词的适当形式填空。
1.My mother ______________ (make) pancakes from 6:00 to 6:30 this morning.2.Mr. Zhao had a __________________ (头痛), so we advised him to see a doctor.3.You should drive as _______________ (care) as possible on rainy days.4.The boy wants to learn more about ______________ (plan) a trip from his father.5._______________ (cover) the crops on cold winter days, the farmer prepared some dried grass.6._______________ (make) the fruit juice just before you are going to drink it.7. ____________________( hide ) under a tree is dangerous when there is thunder and lightning.8. You should follow these ___________________________(规则) when you watch birds here.9. Mum _____________________________(burn) herself when she was cooking.10. The first ___________________________(铁路) in China was about 500 metres long.二、单项选择。
江苏省淮阴中学开明分校2019-2020年八上Unit 8 Grammar同步测试(word版含答案
Unit 8 Grammar (IV)班级______________ 姓名______________ 学号______________一、根据句意用所给单词的适当形式填空。
1. When I got home, my pet cat _____________________ (lie) on my bed.2. The students _____________________ (discuss) the art show when the teacher came in.3. ---___________ your mother ___________ (watch) TV from nine to ten last night?---No, she wasn’t.4. When Arm and I _________________ (shop ) in Xinya Shopping Mall at 8 o’clock yesterday, we ____________________ (meet) Mrs Wang.5. Mum was cooking in the kitchen while I ___________________ (listen) to music in my room.6. Who __________________ (mop) the floor in the classroom at that time yesterday?7. He ____________________ (not chat) with his friends on the Internet at 11:00 last night.8. While she was washing the dishes, she _______________________ (hear) a knock at the door.9. ---Why didn’t you answer my call just now? ---I _______________________ (sleep).10. Mr Li’s car _______________ (break) down on the way to the airport yesterday.二、单项选择。
江苏省淮阴中学开明分校2019-2020学年初二英语八上Unit 6寒假作业(word版有答案)
Unit 6 Birdwatching一、短语默写（一）。
1. 喜欢观鸟____________________________________2. 在市场上____________________________________3. 一些稀有的鸟____________________________________4. 扎龙自然保护区____________________________________5. 在中国东北____________________________________6. 在白天____________________________________7. 容易地观察它们____________________________________8. 世界上最重要的湿地____________________________________9. 为许多野生动物提供食物和庇护所____________________________________10. 一年到头___________________________________11. 去那里短暂停留___________________________________12. 以便，为的是___________________________________13. 有更多空间给农场和大楼___________________________________14. 制定法律阻止所有这些事___________________________________15. 记录它们种类和数量上的变化___________________________________16. 湿地的重要性___________________________________17. 加入观鸟协会___________________________________18. 导致越来越少的空间___________________________________19. 了解关于保护野生动物___________________________________20. 面临严重问题___________________________________二、短语默写（二）。
江苏省淮阴中学开明分校2019-2020年八上Unit 6 Reading知识点同步测试(word版
Unit 6 Reading (III)班级______________ 姓名______________ 学号______________一、根据句意用所给的汉语或单词的适当形式填空。
1. Zhalong _____________________ (大自然) Reserve is in Heilong Jiang Province in China.2. Everyone ran for ________________________(庇护所) when it started to rain.3. More and more people are working hard to protect _______________________ (野生动物).4. Suzhou Park is a ________________________ (完美的) place to enjoy the Chinese gardens.5. After knowing the _________________ (important) of speaking English, Amy practised hard.6. ____________________ (政府) of those countries want to protect these endangered birds.7. ____________________ (provide) food and shelter for the homeless people, he built a house.8. Linda picked up that ______________________ (观光者) wallet and gave it back.9. My grandpa can use the computer ________________________(easy) than before.10. He suddenly ____________________ (understand) the meaning of life when he was close to death.11. Some birds fly to the south, ____________________ (然而) others just stay here.12. Why not _______________(记录) their types first and then _______________(描述) them?13. Listen! John ____________________ (数数) the sheep to help his son go to sleep quickly.14. If the fishermen keep ______________________ (fish) here, birds won’t have enough food.15. The boss wondered what _____________ _____________(导致) losing lots of money.二、单项选择。
淮安市淮阴区东城开明中学2019--2020年上学期学案初一英语 7A Unit6 Grammar
7A Unit6 Grammar班级姓名学号一、根据句意，用所给汉语或单词的适当形式填空。
1. We have little （盐））We need to go out to buy some now.2. There are three （瓶子）of water in the fridge.3. Wash the （玻璃杯）on the table. They are so dirty.4.---Would you like a （杯子）of tea？---Yes，thanks.5. We like eating （土豆）because they are good for our health.6.--How many （kilo）of beef do you want？--Two，please.7. Three （sheep）have twelve four feet （foot）.8. Cut the apple into two （half）and give （they）to the children.二、选择题。
（）9. The students________ different countries have different school______.A. come from；lifeB. are from；livesC. be from；lifeD. from; lives（）10.---How_________ milk do you need？---Two cartons，please.A.muchB. manyC.anyD.some（）11. I want to buy________________.A. some meatsB. a kilo of meatC. two kilo of meatD. two kilos of meats （）12.---Would you like some____________？---Just a little，thank you.A.carrotsB. hamburgersC. juiceD.cakes（）13. I’m so hungry. Please give me_________ to eat.A. three breadB. three pieces of breadC. three pieces of breadsD. three breads三、句型转换，每空一词。
江苏省淮阴中学开明分校2019-2020学年初二英语八上Unit 8寒假作业(word版有答案)
Unit 8 Natural Disasters一、短语默写（一）。
1.自然灾害____________________________________2.把水拖干净____________________________________3.车祸____________________________________4.撞到树上____________________________________5.冲走____________________________________6.雷电交加的大风暴____________________________________7.着火；起火____________________________________8.在清晨____________________________________9.感受到一阵轻微的震动____________________________________10.恐惧地尖叫____________________________________11.向四面八方跑____________________________________12.碎玻璃和砖块____________________________________13.崩塌；坍塌____________________________________14.感到紧张____________________________________15.被困在一个漆黑的地方____________________________________16.一阵恐惧____________________________________17.冷静下来____________________________________18.仍然活着____________________________________19.一点儿也不...... ____________________________________20.搬开砖块____________________________________二、短语默写（二）。
江苏省淮阴中学开明分校2019-2020年八上Unit 8 Reading知识点同步测试(word版
Unit 8 Reading (III)班级_________________ 姓名_________________ 学号_________________一、根据句意用所给的汉语或单词的适当形式填空。
1. It’s better to study in natural ______________________ (日光).2. The boy thought hard and suddenly a good idea came into his ____________________(头脑).3. They were lucky to stay ___________________ (活着的) in the earthquake.4. Daniel was ___________________ (睡着的) when his father came home at night.5. He saw a snake and ___________________ (呼喊) to warn us of the danger.6. The park is noisy in the daytime and ____________________ (寂静的) at night.7. My heart ________________ (beat) more quickly just now. The doctor told me to have agood rest at home.8. Tim was _________________ (trap) in a dark place when the Earthquake stopped.9. These tourists think China is one of _______________________ (safe) countries in the world.10. You’re _________________ (nervous) than before. It’s not helpful to your performance.11. ________________ (当…的时候) Jim is picking apples, Kate is carrying apples to the truck.12. The lovely girl _______________________ (shake) her head and asked for something else.二、单项选择。
2019-2020学年江苏省淮安市开明中学八年级(上)期中数学试卷(附答案详解)
2019-2020学年江苏省淮安市开明中学八年级（上）期中数学试卷1.下列大学的校徽图案是轴对称图形的是()A. 清华大学B. 北京大学C. 中国人民大学D. 浙江大学2.平面直角坐标系中，点A(−1,−3)在第()象限．A. 一B. 二C. 三D. 四3.下列说法正确的是()A. −√5是5的平方根B. −2的平方根是±23=±4 D. √9=±3C. √644.下列各数组中，不能作为直角三角形的三边长的是()A. 5，12，13B. 3，4，5C. 8，15，17D. 4，5，65.已知点A(−3,a)和点B(b,−2)关于原点对称，则a与b的值分别是()A. a=2，b=3B. a=−2，b=3C. a=−2，b=−3D. a=2，b=−36.一个等腰三角形的两边长分别为3和5，则它的周长为()A. 11B. 12C. 13D. 11或137.如图，在△ABC中，∠C=90°，BD平分∠ABC，AB：BC=2：1，则△ABD与△BCD面积比为()A. 2：1B. 2：3C. 3：2D. 3：18.象棋是流行广泛的益智游戏．如图是一副象棋残局，若表示棋子“炮”和“車”的点坐标分别为(1,3)，(−2,1)，则表示棋子“马”的点坐标为()A. (1,3)B. (3,2)C. (4,3)D. (2,3)9.4是______的算术平方根．10.用四舍五入法将37.26精确到0.1的近似数为______．11.在平面直角坐标系中，点(4,2)到y轴的距离为______．12.比较大小：√33______6.(填“>”、“<”或“=”)13.Rt△ABC中，两条直角边长分别为5和12，则斜边上的中线长等于______．14.若某个正数a的两个平方根分别为m+3与2m−9，则a的值为______．15.如图，AD是等边△ABC的边BC上的中线，且AE=AD，则∠BED的度数为______．16.如图，直角坐标系中有一个电子跳蚤，以每秒1个单位的速度，在第一象限及x轴、y轴上运动．在第1秒钟，它从原点运动到(0,1)，接着按图中箭头所示方向运动．那么第28秒时该跳蚤所在位置的坐标为______．17.(1)计算：√9−(π−3)0+|2−√3|；(2)解方程：(x+1)3=−8．18.已知：如图，(1)画出将△ABC向左平移4个单位得到的图形△A1B1C1；(2)画出△A1B1C1关于x轴对称的图形△A2B2C2．19.(1)如图，用直尺和圆规在△ABC的边AC上确定一点P，使PC=PB.(保留作图痕迹)(2)若△ABP的周长为17，BC=8，则△ABC的周长为______．20.如图，在△ABC中，点D，E分别在AB、AC上，AD=AE，∠ACD=∠ABE，CD与BE相交于点F，求证：BF=CF．21.同学们都玩过荡秋千吧？如图，已知秋千顶端O离地面的距离为2.4m，秋千静止时座位离地面的距离是0.4m.当秋千荡到最高处，此时座位离地面的距离恰为0.8m.你能求出秋千荡出的水平距离BC是多少吗？22.张老师在一次“探究性学习”课中，设计了如下数表：n2345…a22−132−142−152−1…b46810…c22+132+142+152+1…(1)请你分别观察a，b，c与n之间的关系，并用含自然数n(n>1)的代数式表示：a=______ ，b=______ ，c=______ ；(2)猜想：以a，b，c为边的三角形是否为直角三角形并证明你的猜想．23.如图，在直角坐标系中，A、B、C三点的坐标分别为(0,1)，(2,0)，(2,1.5)．(1)△ABC的面积为______．(2)如果在第二象限内有一点P(a,1.8)，试用含a的式子表示四边形ABOP的面积．(3)在(2)的条件下，是否存在点P，使得四边形ABOP的面积是△ABC面积的2倍？若存在，请求出点P的坐标，若不存在，请说明理由．24.阅读理解：如图1，在△ABC的边AB上取一点P，连接CP，可以把△ABC分成两个三角形，如果这两个三角形都是等腰三角形，我们称点P是△ABC的边AB上的完美点．解决问题：(1)如图2，△ABC中，∠ACB=90°，试找出边AB上的完美点P，并说明理由．(2)如图3，已知∠A=36°，△ABC的顶点B在射线l上，点P是边AB上的完美点，请认真分析所有符合要求的点B，直接写出相应的∠B的度数．25.我们知道，长方形的对边相等，对边平行，四个角都是直角，即长方形ABCD中，∠A=∠ABC=∠C=∠ADC=90°，AB=CD，AD=BC，AD//BC，AB//CD．学完轴对称的性质，周老师设计如下三个问题，带领大家研究长方形纸片的折叠问题．请你运用所学知识，解决下面的问题．问题(1)：如图(1)，有一张长方形纸片ABCD，AB=12，AD=16，将纸片折叠，使AB落在对角线AC上，折痕为AE(点E在边BC上)，点B落在点B′处，求线段CE的长度；问题(2)：如图(2)，点G在一张长方形纸片ABCD的边AD上，将纸片折叠，使AB 落在CG所在直线上，设折痕为EF(点E，F分别在边BC、AD上)，利用直尺和圆规画出折痕EF(不写作法，保留作图痕迹)；问题(3)：如图(3)，有一张长方形纸片ABCD，AB=12，AD=27，F为AD边上一点，AF=7，E为BC上一点．将纸片折叠，使点B恰好落在线段ED上的B′处，折痕为EF，点A落在点A′处．求线段B′D的长度．答案和解析1.【答案】B【解析】解：A、不是轴对称图形，本选项错误；B、是轴对称图形，本选项正确；C、不是轴对称图形，本选项错误；D、不是轴对称图形，本选项错误．故选：B．结合轴对称图形的概念进行求解即可．本题考查了轴对称图形的概念，轴对称图形的关键是寻找对称轴，图形两部分折叠后可重合．2.【答案】C【解析】解：点A(−1,−3)在第三象限．故选C．根据各象限内点的坐标特征解答．本题考查了各象限内点的坐标的符号特征，记住各象限内点的坐标的符号是解决的关键，四个象限的符号特点分别是：第一象限(+,+)；第二象限(−,+)；第三象限(−,−)；第四象限(+,−)．3.【答案】A【解析】解：A，∵5的平方根是±√5，∴正确，B∵负数没有平方根，∴B错误，3=4，∴C错误，C∵√64D∵√9=3∴D错误．故选：A．A：由5的平方根是±√5判断；B：负数没有平方根进行判断；C：开立方求出结果，然后判断；D：求出算数平方根，然后判断．本题主要考查了平方根，算术平方根、立方根的概念的运用，掌握这几个定义的区别及实际应用是解题关键．4.【答案】D【解析】解：A、52+122=132，故是直角三角形，不符合题意；B、32+42=52，故是直角三角形，不符合题意；C、82+152=172，故是直角三角形，不符合题意；D、42+52≠62，故不能组成直角三角形，符合题意．故选：D．由勾股定理的逆定理，只要验证两小边的平方和等于最长边的平方即可．本题考查勾股定理的逆定理的应用．判断三角形是否为直角三角形，已知三角形三边的长，只要利用勾股定理的逆定理加以判断即可．5.【答案】A【解析】解：∵点A(−3,a)和点B(b,−2)关于原点对称，∴a=2，b=3，故选：A．根据平面直角坐标系中任意一点P(x,y)，关于原点的对称点是(−x,−y)，即关于原点的对称点，横纵坐标都变成相反数，求得a、b的值．本题主要考查了关于原点对称的点的坐标特点，平面直角坐标系中任意一点P(x,y)，关于原点的对称点是(−x,−y)，即关于原点的对称点，横纵坐标都变成相反数．6.【答案】D【解析】【分析】此题考查了等腰三角形的性质与三角形三边关系．此题难度不大，解题的关键是注意分类讨论思想的应用，小心别漏解．由等腰三角形两边长为3、5，分别从等腰三角形的腰长为3或5去分析即可求得答案，注意分析能否组成三角形．【解答】解：①若等腰三角形的腰长为3，底边长为5，∵3+3=6>5，∴能组成三角形，∴它的周长是：3+3+5=11；②若等腰三角形的腰长为5，底边长为3，∵5+3=8>5，∴能组成三角形，∴它的周长是：5+5+3=13，综上所述，它的周长是：11或13．故选D．7.【答案】A【解析】解：作DE⊥AB于E，∵BD平分∠ABC，∠C=90°，DE⊥AB，∴DE=DC，∵AB：BC=2：1，∴设AB=2x，BC=x，∴△ABD与△BDC的面积之比：(12×AB×DE)：(12×BC×CD)=AB：BC=2：1．故选：A．作DE⊥AB于E，根据角平分线的性质得到DE=DC，根据三角形的面积公式计算即可．本题考查的是角平分线的性质，熟练掌握角平分线上的点到角的两边的距离相等是解题的关键．8.【答案】C【解析】解：∵棋子“炮”和“車”的点坐标分别为(1,3)，(−2,1)，∴帅的位置为原点，如图所示，∴棋子“马”的点坐标为(4,3)，故选：C．根据棋子“炮”和“車”的点坐标分别为(1,3)，(−2,1)，得出原点的位置，进而得出答案．本题考查了坐标确定位置，正确得出原点的位置是解决问题的关键．9.【答案】16【解析】解：∵42=16，∴4是16的算术平方根．故答案为：16．如果一个非负数x的平方等于a，那么x是a的算术平方根，由此即可求出结果．此题主要考查了算术平方根的概念，牢记概念是关键．10.【答案】37.3【解析】解：用四舍五入法将37.26精确到0.1的近似数为37.3，故答案为：37.3．对百分位数字四舍五入即可．本题主要考查近似数，一般地说，一个近似数，四舍五入到哪一位，就说这个近似数精确到哪一位．11.【答案】4【解析】解：∵点到y轴的距离等于横坐标的绝对值，点(4,2)的横坐标为4，∴点(4,2)到y轴的距离为4．故答案为：4．根据点到x轴的距离等于纵坐标的绝对值，到y轴的距离等于横坐标的绝对值解答即可．本题考查了点的坐标，利用点到x轴的距离是纵坐标的绝对值，点到y轴的距离是横坐标的绝对值是解题的关键．12.【答案】<【解析】解：∵33<36，∴√33<6，故答案为：<．通过比较这两个正数的平方来比较大小．本题考查了实数的比较大小，通过比较这两个正数的平方来比较大小是解题的关键．13.【答案】6.5【解析】解：∵直角三角形两直角边长为5和12，∴斜边=√52+122=13，=6.5．∴此直角三角形斜边上的中线的长=132故答案为：6.5．根据勾股定理可求得直角三角形斜边的长，再根据直角三角形斜边上的中线等于斜边的一半即可求解．此题主要考查勾股定理及直角三角形斜边上的中线的性质；熟练掌握勾股定理，熟记直角三角形斜边上的中线的性质是解决问题的关键．14.【答案】25【解析】解：∵一个正数的平方根互为相反数，∴m+3+2m−9=0，解得m=2，∴a的平方根是±5，∴a=25．故答案为：25．由一个正数的平方根互为相反数，列一元一次方程，求出m，最后求出a．此题主要考查了平方根的性质，掌握性质的应用，由一个正数的平方根互为相反数，列一元一次方程，是解题关键．15.【答案】105°【解析】解：∵△ABC为等边三角形，BD=DC，∠BAC=30°，∴∠BAD=12∵AE=AD，×(180°−30°)=75°，∴∠AED=12∴∠BED=180°−∠AED=105°，故答案为：105°．∠BAC=30°，根据等腰三角形的性质计算即根据等腰三角形的三线合一求出∠BAD=12可．本题考查的是等边三角形的性质、三角形内角和定理、等腰三角形的性质，掌握等边三角形的每个内角都是60°是解题的关键．16.【答案】(3,5)【解析】解：电子跳蚤每秒1个单位，按照图中运动的规律，到达(0,1)用1秒，到达(2,0)用4秒，到达(0,3)用9秒，到达(4,0)用16秒，到达(0,5)用25秒，∴到达(3,5)用28秒，故答案为：(3,5)．根据电子跳蚤运动的特点，从中找出规律，即可得出答案．本题考查了坐标确定位置，读懂题意，正确确定跳蚤运动的规律是解决问题的关键．17.【答案】解：(1)原式=3−1+2−√3=4−√3；(2)方程(x+1)3=−8，开立方得：x+1=−2，解得：x=−3．【解析】(1)原式利用算术平方根定义，零指数幂法则，以及绝对值的代数意义计算即可求出值；(2)方程利用立方根定义开立方即可求出解．此题考查了实数的运算，立方根，以及零指数幂，熟练掌握立方根定义，零指数幂法则，以及绝对值的代数意义是解本题的关键．18.【答案】解：(1)如图，△A1B1C1即为所求．(2)如图，△A2B2C2即为所求．【解析】(1)利用平移变换的性质分别作出A，B，C的对应点A1，B1，C1即可．(2)利用轴对称的性质分别作出A1，B1，C1的对应点A2，B2，C2即可．本题考查作图−轴对称变换，平移变换等知识，解题的关键是掌握平移变换，轴对称变换的性质，属于中考常考题型．19.【答案】25【解析】解：(1)如图，点P为所作；(2)∵PC=PB，∴△ABP的周长=AB+AP+PB=AB+AP+PC=AB+AC=17，∴△ABC的周长=AB+AC+BC=17+8=25．故答案为25．(1)作BC的垂直平分线即可；(2)利用等线段代换得到△ABP的周长=AB+AC=17，然后计算△ABC的周长．本题考查了作图−复杂作图：解决此类题目的关键是熟悉基本几何图形的性质，结合几何图形的基本性质把复杂作图拆解成基本作图，逐步操作．也考查了线段垂直平分线的性质．20.【答案】证明：在△ABE与△ACD中，{∠A=∠A∠ACD=∠ABE AD=AE，∴△ABE≌△ACD(ASA)，∴AB=AC，∠ADC=∠AEB，∴AB−AD=AC−AE，即DB=EC，∴∠BDF=∠CEF，在△DBF与△ECF中，{∠BDF=∠CEF ∠DFB=∠EFC DB=EC，∴△DBF≌△ECF(AAS)，∴BF=CF．【解析】根据AAS证明△ABE与△ACD全等，利用全等三角形的性质得出AB=AC，进而利用AAS证明△DBF与△ECF全等，利用全等三角形的性质解答即可．考查了全等三角形的判定和性质，根据AAS 证明△ABE 与△ACD 全等是本题的关键．21.【答案】解：能求出秋千荡出的水平距离BC 的长，理由如下：由题意得：秋千最低点为A ，最高点为B ，OD =2.4m ，AD =0.4m ， 则OA =OB =OD −AD =2(m)，过B 点作BC ⊥OA 于C ，BE ⊥地面于E ，则CD =BE =0.8m ，∴AC =CD −AD =0.8−0.4=0.4(m)，∴OC =OA −AC =2−0.4=1.6=85(m)， 在Rt △OBC 中，由勾股定理得：BC =√OB 2−OC 2=√22−(85)2=65(m)=1.2m ， 即秋千荡出的水平距离BC 是1.2m ．【解析】过B 点作BC ⊥OA 于C ，BE ⊥地面于E ，则CD =BE =0.8m ，求出AC =CD −AD =0.4(m)，OC =OA −AC =1.6(m)，再根据勾股定理求出BC 的长即可． 本题考查了勾股定理的应用，熟练掌握勾股定理，求出OC 的长是解题的关键．22.【答案】(1)n 2−1；2n ；n 2+1(2)猜想为：以a ，b ，c 为边的三角形是直角三角形．证明：∵a =n 2−1，b =2n ；c =n 2+1∴a 2+b 2=(n 2−1)2+(2n)2=n 4−2n 2+1+4n 2=n 4+2n 2+1=(n 2+1)2 而c 2=(n 2+1)2【解析】解：(1)由题意有：n 2−1，2n ，n 2+1；(2)猜想为：以a ，b ，c 为边的三角形是直角三角形．证明：∵a =n 2−1，b =2n ；c =n 2+1∴a 2+b 2=(n 2−1)2+(2n)2=n 4−2n 2+1+4n 2=n 4+2n 2+1=(n 2+1)2 而c 2=(n 2+1)2∴根据勾股定理的逆定理可知以a ，b ，c 为边的三角形是直角三角形．(1)结合表中的数据，观察a ，b ，c 与n 之间的关系，可直接写出答案；(2)分别求出a 2+b 2，c 2，比较即可．本题需仔细观察表中的数据，找出规律，利用勾股定理的逆定理即可解决问题．23.【答案】1.5【解析】解：(1)∵A、B、C三点的坐标分别为(0,1)，(2,0)，(2,1.5)，∴OA=1，OB=2，BC=1.5，BC//OA，∴△ABC的面积=12×1.5×2=1.5；故答案为：1.5；(2)如图所示，作PE⊥y轴于E，∵在第二象限内有一点P(a,1.8)，∴a<0，则S四边形ABOP =S△AOB+S△AOP=12OA⋅OB+12OA⋅PE=12×1×2+12×1×(−a)=1−12a；(3)存在点P，使得四边形ABOP的面积是△ABC面积的2倍，根据题意得：1−12a=2×1.5，解得：a=−4，∴P(−4,1.8)．(1)根据A、B、C三点的坐标即可得出△ABC的面积；(2)作PE⊥y轴于E，四边形ABOP的面积=△AOB的面积+△AOP的面积，即可得出结果；(3)根据四边形ABOP的面积是△ABC面积的2倍列方程，求出a=−4，即可得出点P 的坐标．本题考查了四边形综合题，综合掌握坐标与图形性质、三角形面积的计算；熟练掌握坐标与图形性质是解决问题的关键．24.【答案】解：(1)取AB的中点P，连接PC即可如图①∵∠ACB=90°，P是AB的中点，∴CP=12AB，AP=BP=12AB，∴AP=PB=CP．∴△APC，△PBC是等腰三角形．∴点P是边AB上的完美点．(2)满足条件的点B如图所示：②③④⑤⑥【解析】(1)取AB的中点P，连接PC即可，利用直角三角形斜边上的中线等于斜边一半证明；(2)根据点P是边AB上的完美点，结合等腰三角形的性质画出图即可．本题考查等腰三角形的性质、直角三角形的性质，掌握性质的熟练应用，理解题意是解题的关键．25.【答案】解：问题(1)∵四边形ABCD是矩形，∴∠ABC=90°，BC=AD=16，∵AB=12，由勾股定理得：AC=√AB2+BC2=√122+162=20，由折叠得：∠AB′E=∠B=90°，AB′=AB=12，BE=B′E，∴∠CB′E=90°，设CE=x，则B′E=BE=16−x，由勾股定理得：CE2=B′E2+B′C2，即x2=(16−x)2+(20−12)2，解得：x=10，∴CE=10；问题(2)如图(2)所示：EF即为所求；问题(3)∵AF=7，AD=27，∴FD=20，∵将纸片折叠，使点B恰好落在线段ED上的B′处，∴∠BEF=∠B′EF，BE=B′E，∵AD//BC，∴∠DFE=∠BEF，∴DE=DF=20，∴CE=√DE2−DC2=√202−122=16，∴BE=BC−CE=11，∴B′E=11，∴B′D=DE−B′E=20−11=9．【解析】问题(1)：设CE=x，根据折叠的性质表示B′E=BE=16−x，由勾股定理计算AC=20，则CB′=8，最后根据勾股定理列方程可得答案；问题(2)：如图(2)中，延长BA交直线CG交于点H，作∠BHC的角平分线交AD于F，交BC于E，直线EF即为所求；问题(3)：首先求出FD=20，由矩形的性质得出AD//BC，BC=AD=27，由平行线的性质得出∠DFE=∠BEF，由翻折不变性可知，∠BEF=∠DEF，证出∠DFE=∠DEF，由等腰三角形的判定定理证出DF=DE=20，再由勾股定理求出CE，可得BE，再利用翻折不变性，可知EB′=EB，由此即可解决问题．本题是四边形综合题，考查了矩形的性质、翻折变换的性质、勾股定理、等腰三角形的判定、平行线的性质等知识，解题的关键是灵活运用所学知识解决问题，学会利用翻折不变性解决问题．。
淮安市淮阴区东城开明中学2019-2020年上学期 8A Unit 6 Grammar(Ⅳ)学案(无
Unit 6 Grammar(Ⅳ)班级姓名学号一、根据句意用所给汉语或单词的适当形式填空。
1. My mother went to the city centre (do) some shopping yesterday.2.You’ve done a great job! But I need you (write) down moresentences in your notebook after class.3. The teacher told me (come) to school earlier next time.4. The policeman asked the boys (not play) football on the road.5. She saw a baby panda (drink) her mother’s milk last week.6. Many visitors took cameras (take) photos of the birds.7. Paul made a nice cage (keep) the little sick bird till it could fly.8. We are now inviting them (help) us.9. His mother let him (not shout) at his grandfather like that.10. The cold weather made some birds (飞) south for winter.11.Mo Yan is the first Chinese person (获得) the Nobel Prize forLiterature.12.The doctor advised me (吃) healthily and (exercise) alot.13.I seemed (听见) someone knocking at the door,but when I openedthe door, I found nobody outside.二、单选题( ) 14. ---I will go to the countryside my grandfather this afternoon, so I can’t go swimming with you.---It’s a pity.A. seesB. to seeC. seeingD. saw ( ) 15. ---Let’s Mr. Smith’s speech on Western culture, shall we?---I’m afraid not. It’s getting to the end.A. go and listen toB. to go and listen toC. go and listenD. going and listening( ) 16. Please do what you can your English better.A. to makeB. makesC. makingD. make ( ) 17. What great fun it is ice cream in hot summer.A. havingB. to haveC. hadD. have ( ) 18. It’s a good idea broken things instead of throwing them away.A. to repairB. repairingC. repairsD. repaired ( ) 19.---Why is Millie practicing speaking English?--- to England for further study.A. GoB. To goC. GoesD. Went三、同义句转换。
初中英语 江苏省淮阴中学开明分校2019-2020学年八上Unit 8 Reading完形阅读同步测试(word版含答案)
Unit 8 Reading (II)班级_________________ 姓名_________________ 学号_________________一、完形填空。
My parents always told me that I couldn’t dance, because it was a girl’s sport. But I never gave up my dream of becoming a dancing star. I practised secretly, learning from books and movies. However, without my parents’ support, that 1 seemed impossible to reach. One summer, my little sister Maggie was going to her dancing lessons. I asked 2 parents right away for permission(允许) to take her to the lessons. What a 3 chance(机会) to learn dancing!One afternoon, I was practising a new dance in my room, when Maggie walked 4 . “What’s wrong, Maggie?” I stopped 5 . “Denis, you are a great dancer! Can you help me?” “What is it?” I wondered. “There will be a dancing competition, 6 the boys think I’m slow, and none of them wants to be my partner.7 you dance with me for it?” She looked straight at me.“You can be a good dancer!” I encouraged(鼓励) her. “Let’s show those people that they are 8 .” In the following months, we practised every evening, hiding from my parents.Finally came the big day. I became 9 when I heard my parents would come to watch the show. As the 10 began, I took a deep breath and tried to calm down. We moved perfectly. From the cheers of the crowd(人群), I was sure we 11 the game.My heart was beating wildly when I saw my 12 coming towards me. He put his hand on my shoulder. “Well done, son, go for your dream and make us proud(自豪的).”( ) 1. A. answer B. dream C. message D. information( ) 2. A. my B. your C. his D. her( ) 3. A. funny B. strange C. great D. terrible( ) 4. A. out B. away C. through D. in( ) 5. A. dancing B. drawing C. singing D. talking( ) 6. A. or B. so C. but D. if( ) 7. A. Must B. Could C. Should D. Need( ) 8. A. right B. sorry C. wrong D. sad( ) 9. A. shy B. bored C. angry D. nervous( ) 10.A. music B. lesson C. meeting D. party( ) 11. A. started B. won C. lost D. arrived( ) 12. A. father B. mother C. sister D. classmate二、阅读理解。
江苏省淮阴中学开明分校2019-2020年八上Unit 6 Welcome to the unit同
Unit 6 Welcome to the unit ( I )班级_________________ 姓名_________________ 学号_________________一、根据句意用所给的汉语或单词的适当形式填空。
1. My mother likes to buy food in these _____________________ (市场) near our home.2. To learn some skills from the __________________ (母鸡), the chickens are following them.3. --- How does the soup taste?--- ______________________ (可口的，美味的)！I never drink better soup before.4. Ostriches(鸵鸟) can't fly even without _____________________ (翅膀).5. Do you know how many ______________________ (种类) of cranes are there in China?6. Millie used special ________________________ (羽毛) to decorate her cap for the party.7. The baby girl is happy to see ______________________ (麻雀) flying in the sky.8. --- Which birds are ____________ (rare), cranes or eagles? --- Both. We need to protect them.9. The ugly duckling turned into a beautiful __________________ (天鹅) at the end of the story.10. _____________________ (watch) the birds and count the birds, we had to go to the park.二、单项选择。
江苏省淮阴中学开明分校2019-2020年八上Unit 6 Integrated skills同步测
Unit 6 Integrated Skills (V)班级________________ 姓名________________ 学号________________一、根据句意用所给的汉语或单词的适当形式填空。
1. She quietly closed the door, trying _________________________ (not make) the baby awake.2. Amy __________________________ (cover) her eyes when she saw the horror(恐怖) movie.3. She __________________________ (带领) those little kids to a safe place and then left quietly.4.With a pair of __________________ (望远镜), I can see sights ___________________ (clear).5. I like singing ___________________________ (然而) my younger sister likes swimming.6. Most birds are ______________ (active) at night in Zhalong, so you cannot watch them easily.7. Some young people like to work and live in ________________________ (东方) China.8. There are many __________________________ (visit) at the birds show.9. Canada is the second __________________________ (large) country in the world.二、单选题。
淮安市淮阴区东城开明中学2019-2020年上学期 8A Unit 6 Reading (Ⅱ)学
Unit 6 Reading (Ⅱ)班级姓名学号一．完形填空。
Robert De Vincenzo,the great golfer(高尔夫球员),once won a competition.After receiving the check(支票),he went to the club and prepared to leave.He walked alone to his car and 1 a young woman.The young woman stopped him and said congratulations on his success then she told him that her child was badly 2 and she was dying.But her family was poor. She did not know 3 she could pay the hospital bill(帐单).De Vincenzo was moved by her 4 and gave his winning check to the woman.“Make some good days for the 5 “ he said as he put the check into her hand.The next week,he was having lunch in country club when a boy came 6 his table.“Last week,some of the boys told me that you met a young woman7 you won that competition.”De Vincenzo said,“Yes.”“Well,” said the policeman,“I have news 8 you. She does not have a sick baby. She’s not even married. She cheated(欺骗) you, my friend.”“You 9 there is no baby who is dying? said De Vincenzo.“Yes, that’s right.” said the policeman.“That’s the 10 news I’ve heard all week,” De Vincenzo said happily.“Life is more important.”Good news or bad news? It depends on how you 11 things. You can be sad after being cheated.12 you can choose to go on with your life bravely.( ) 1. A. had B. got C. met D. saved ( ) 2. A. ill B. well C. strong D. healthy ( ) 3. A. who B. how C. why D. what ( ) 4. A. lesson B. story C. idea D. advice ( ) 5. A. doctor B. nurse C. baby D. mother ( ) 6. A. at B. into C. to D. up( ) 7. A. after B. before C. until D. when ( ) 8. A. at B. for C. in D. over ( ) 9. A. help B. mean C. show D. ask ( ) 10.A. saddest B. worst C. best D. poorest ( ) 11.A. look B. guess C. accept D. see ( ) 12.A Or B. So C. And D. But二、阅读理解。
初中英语 江苏省淮阴中学开明分校2019-2020学年八上Unit 8 Welcome to the unit同步测试(word版含答案)
Unit 8 Welcome to the unit (I)班级_____________ 姓名_______________ 学号______________一、根据句意用所给的汉语或单词的适当形式填空。
1. The office is very clean now. We tidied it _______________ (完全地) just now.2. (earthquake) are one of the worst natural disasters in China for years.3. The ________________ (长途汽车) have comfortable seats.4. The tourists from the USA visited a few _______________ (村庄) in China.5. Look! It ________________ (rain) outside. You should stay at home.6. What a foggy morning! There may be car _______________ (accident) on foggy days.7. The _________________ (暴风雨) prevented them from travelling by ship last week.8. If a bird _________________ (crash) into a plane in the sky, it will die.9. When Suzy _______________ (wake) up, she felt nobody at home.10. It is _______________________ (wet) in Nanjing than in Huai’an today.二、单项选择。
江苏省淮安市淮阴区淮阴区开明中学2019-2020学年九年级上学期期末数学试题
捐款数（单位：元），并绘制成下面的统计图．
（1）本次调查的样本容量是________，这组数据的众数为________元； （2）求这组数据的平均数； （3）该校共有 600 学生参与捐款，请你估计该校学生的捐款总数． 20．在“阳光体育”活动时间，小英、小丽、小敏、小洁四位同学进行一次羽毛球单打比 赛，要从中选出两位同学打第一场比赛． （1）若已确定小英打第一场，再从其余三位同学中随机选取一位，求恰好选中小丽同 学的概率； （2）用画树状图或列表的方法，求恰好选中小敏、小洁两位同学进行比赛的概率． 21．某校组织“大手拉小手，义卖献爱心”活动，计划购买黑白两种颜色的文化衫进行手 绘设计后出售，并将所获利润全部捐给山区困难孩子．已知该学校从批发市场花 3600 元购买了黑白两种颜色的文化衫 200 件．每件文化衫的批发价及手绘后的零售价如下表：
A． 2a6
B． 4a5
C． 2a5
D． 4a6
3．某图书馆有图书约 985000 册，数据 985000 用科学记数法可表示为（ ）
A． 985103
B． 98.5104
C． 9.85105
D． 0.985106
4．现有一组数据 2，7，9，5，8，则这组数据的中位数是（ ）
A．9
B．7
C．8
D．5
2x 3 11．已知实数 m 满足方程 x2 2x 1 0 ，则代数式 4m 2m2 3的值为_____． 12．一个不透明的袋子中装有 3 个黄球和 4 个蓝球，这些球除颜色外完全相同，从袋子 中随机摸出一个球，摸出的球是黄球的概率是____． 13．若圆锥的母线为 6，底面圆的半径为 3，则此圆锥的侧面积为________． 14．如图，以点 O 为位似中心，将 OAB 放大后得到 OCD ，OA 2 , AC 3 ，则 AB
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Unit 6 Reading (Ⅲ)
班级姓名学号
一、根据句意用所给汉语或单词的适当形式填空。
1. There are many kinds of birds in (大自然).
2. The forests are good (庇护所)for all kinds of birds.
3. It’s more and more important to protect (野生动物).
4. What you did (导致)your mother’s sadness and also hurt me.
5. The Chinese (政府) wants to protect these endangered birds.
6.Zhalong is a (完美的)place (提供)food and shelter for wildlife.
7. It’s very important to know the (重要性) of learning English.
8. Every year a lot of (观光者) come to visit the Great Wall.
9. This kind of birds can (容易地) find food in the reserve.
10. He (理解) the meaning of life when he was young.
11. Some birds fly to the south (然而) some others just stay here.
12. There are about forty (百分之…) of the cranes living in Zhalong.
13.Would you please (记录) their types and (描述) them?
14.Our teachers always tell us the (important) of being an honest man.
15.With those kind (fisherman) support,many young fish can survive.
二、单项选择。
( ) 16. --- There was a big fire on the wetland last week.
--- Bad news.That means the birds will have food and living areas.
A. fewer; fewer
B. less; less
C. less; fewer
D. fewer; less
( ) 17. Many birds live in Zhalong Nature Reserve .
A. all round years
B. all year round
C. round all year
D. the all years round
( ) 18.Zhalong is a great place wildlife because it provides food and shelter
them.
A. for; to
B. for; for
C. to; to
D. of; for ( ) 19. He is interested in music,I like dancing.
A. while
B. so
C. when
D. because ( ) 20. I know the _____ of the bird because it is one of the birds in the world.
A. importance; important
B. important; importance
C. importance ; most important
D. Important ; important ( ) 21. We should know the changes the numbers.
A. at
B. over
C. in
D. on ( ) 22. There are too many people in the hall. We don’t have to stand in.
A. enough spaces
B. enough space
C. spaces enough
D. many
space
三、同义句转换。
23. It’s easy for you to watch birds in the wetlands.
You can in the wetlands.
24. Different kinds of fruits offer vitamins to our bodies.
Different kinds of fruits vitamins our bodies.
Different kinds of fruits our bodies vitamins.
25. Many birds live in Zhalong Nature Reserve during through the year.
Many birds live in Zhalong Nature Reserve .
26. Zhalong is one of the most important wetlands in the world.
Zhalong is one of most important wetlands.
27. This will help people understand it’s important to protect wildlife.
This will help people understand the wildlife.
28. Some birds only stay there for a short time.
Somebirds only go there .
29. To have more space for farms, some farmers cut down forests.
have more space for farms, some farmers cut down forest.
30. People have more cars. This makes people have worse and worse air as a result.
People have more cars. This worse and worse air for people.
31. What’s more (而且), fishermen do not stop fishing there.
, fishermen there.
四、翻译句子。
32.许多鸟一年都头住那儿，而一些鸟只去那儿作段暂停留。
Many birds live there , while which some birds only go there
.
33.这意味着稀有鸟儿的空间越来越少了。
This means there will be for rare birds.
34.去年政府制定法规阻止所有这些事。
Last year all the things. 35.我们现在邀请游客数鸟和描述鸟。
We are now the birds.
36.观鸟协会成员研究鸟儿并记录它们的类型和它们数量上的变化。
The members of study the birds . 37.因为越来越多的鸟儿没有足够庇护所，他们正处于危险之中。
Because more and more birds do not _____ , they now.
38.这地区提供食宿和庇护所给许多野生动物。
This area .。