上海市中国中学2018--2019学年上学期初三10月份月考卷(无听力部分) (1)

2018-2019学年第一学期初三年级10月月考英语试题Part1ListeningPart2Phonetics,Grammar and VocabularyII.Choose the best answer.26.The teacher is very happy because my answer is correct.Which of the following is correct for the underlined word?A./kəˈrikt/B./kəˈrekt/C./kəuˈrekt/D./kəuˈrikt/27.The night scene of the Bund of Shanghai is beautiful and attractive on_______night of________ National Day?A.a,theB./,theC.the,/D.the,a28.Nowadays some students choose online courses and study by________at home.A.theirsB.himselfC.themD.themselves29.________Kate________her cousin has been to Russia,but both of them have known the country very well.A.Either,orB.Neither,norC.Both,andD.Not only,but also30.About_______the students of their grade went to the Science and Technology Museum last Saturday.A.hundreds ofB.two hundredC.two hundred ofD.two hundreds31.The sixth soldier waiter for_______hour and then climbed out to open the great door.A.otherB.othersC.the otherD.another32.The teacher said my composition was quite good_________a few spelling mistakes.A.besidesB.besideC.exceptD.except for33.--Where is my coat?Have you seen it?--It_______there behind the door.Can you see it?A.is hungB.is hangingC.hangedD.has hanged34.The student is afraid_________English with foreigners.A.to practice to speakB.practicing speakingC.of practicing speakingD.of practicing to speak35.The girl student got angry because they were________her.A.playing a trick onB.playing trick toC.playing a joke withD.making a trick on36.--Do you know_______cormorants can stay under water?--For up to two minutes.A.how many timesB.how soonC.how longD.how often37.Listening to music and doing exercise_________relaxed after a day’s work and study.A.enables us feelB.enable us feelC.enable us to feelD.enables us to feel38.QQ as well as WeChat________an important part in our daily communication.A.is playingB.are playingC.have playedD.play39.China International Import Expo________in Shanghai from November5to10,2018.A.will holdB.will be taken placeC.will be heldD.will held40.Mother has promised that she________an IPad Mini for her daughter if her daughter goes to the key senior high school.A.will buyB.would buyC.boughtD.has bought41.________useful dictionary it is!I often look up new words in it when I am reading books.A.WhatB.What aC.What anD.How42.Early in the morning Damin set off on his bamboo raft with his birds.The underlined part means “___________”.A.set awayB.set aboutC.startedD.began43.The heavy rain made the tourists_______at the hotel all day with nothing to do.A.to stayB.stayingC.stayedD.stay44.--I_______a rainbow in the sun.--Really?Do you know how many colours________in the rainbow?A.just have seen,there areB.have just seen,are thereC.just saw,there areD.have just seen,there are45.--Would you mind my opening the window?--___________.A.Of course.Please go ahead.B.Certainly not.Please go aheadC.Never mindD.No,I feel so coldplete the following passage with the words or phrase in the box.Each can only be used once.Tea is the national drink in China and serves as an important part of Chinese history and culture.Tea has played an important role in Chinese life since ancient times.Chinese Tea has existed more than5000 thousand years.China was the first country to__46__the tea in the world.Traditionally,drinking tea was the best way for learners to inspire themselves.Drinking tea could judge a person’s character and level of moral and emphasis(强调)the__47__of objective environment and inner heart.China is the homeland of tea.And human cultivation(培植)of tea plants dates back two thousand years.Tea from China,along with her__48__and porcelain(瓷器),began to be known in the world more than a thousand years ago and has always been an important Chinese export.At present more than forty countries in the world grow tea with Asian countries producing90%of the world’s total output.The habit of tea drinking spread to Japan in the6th century,but it was not introduced to Europe and America__49__the17th and18th centuries.Now the number of tea drinkers in the world is still on the increase.Tea in China is as important as coffee in the western countries.Most Chinese enjoy drinking tea.It does good to people’s healthy.As we all know tea has a special taste.It can clear the bowels(肠胃), Moisten mouth(滋润口腔)and so on.There are various kinds of tea such as Tieh-Kuan-Yin,Pu-erh.Some is cheap__50__some is expensive.China is a country with a time-honored civilization and a land of ceremony and manners.Whenever guests visit,it is necessary to make and serve tea to them.Before serving tea,you may ask them for their right choices as to what kind of tea they enjoy and serve them the tea in the most suitable ually, if the tea is made in a teacup,boiling water should be added after half of the cup has been consumed,and thus the cup is kept__51__so that the tea remains pleasantly warm throughout the entire course of tea-drinking.Tea has become one of Chinese specific drinks in the world.A large number of teas are exported to the foreign countries.Tea shops and Tea houses in the street are__52__found in China.Chinese tea culture and arts attracts a lot of people.Today,Chinese tea has spread every corner of China from academic research to daily life.Chinese traditional culture to a most degree is__53__connected with Chinese tea,Chinese tea also makes a great contribution to the development of Chinese culture.plete the sentences with the given words in their proper forms.54.On the Double_______Festival,people usually climb mountains.(nine)55.We are proud of Wendy because she is very________in winning the first prize.(succeed)56.They said that it was their duty to train up these children to be good________.(city)57.All of the tourists are amazed at the________of the Oriental Pearl TV Tower.(high)58.The Greeks pretended to sail away,and the_______pulled the horse into their city as a victory trophy.(Troy)59.He is planning to go for a holiday,perhaps to_________or somewhere else.(Greek)60.Without her timely help,I was_______to work out the difficult problem yesterday.(able)61.Are you sure that the door and windows are locked________?(secure)plete the following sentences as required62.Nowadays few young people are interested in traditional fishing skills.(改为反义疑问句)Nowadays few young people are interested in traditional fishing skills,________________63.It is fun to ride a bike on a sunny day like this.(改为感叹句)________________it is to ride a bike on a sunny day like this!64.I shall leave the restaurant if the waitress doesn’t come soon.(改为句意相同句)I shall leave the restaurant_________the waitress_________soon.65.The Greeks managed to capture the city by a trick at last.(改为句意相同句)The Greek________________capturing the city by a trick at last.66.Mr.Wang teaches us chemistry this term in our school.(改被动语态)Chemistry is________________us by Mr.Wang this term in our school.67.Can anyone answer the question?The maths teacher wanted to know.(合并为一句)The maths teacher wanted to know_______anyone_______answer the question.68.perhaps,fishermen,using,there,cormorants,more,will be,no,in the future(连词成句)_______________________________________________________________Part3Reading and WritingVI.Reading comprehensionA.Choose the best answersIt is exciting to visit different places.As you travel,you will see typical beautiful scenery of the region.Besides,you can meet and make friends with people of different colors and races.You can get to know the customs and living habits of the local people.Today people are so fond of traveling that tourism has become one of the fastest growing industries in most countries.The main reason why people travel is,perhaps for pleasure.For instance,having worked hard throughout the weekdays,people will find a weekend trip to the nearby mountains or beaches to have a real relaxation.For another example,spending an annual(年度的)holiday traveling abroad is an especially satisfying experience for those who do not have much of an opportunity to be away from their homelands.When people return from their travel,they will generally feel fresh and energetic,ready to work harder.Traveling is also one of the best means for learning.You may have read or heard about something but you can never get an accurate picture of it until you see it for yourself.Seeing is believing.Furthermore,ifyou are a careful observer,you can learn much during your travel about the geography,biology and history of the places you visit.No matter how well educated you are,there is always a lot for you to learn through traveling.The knowledge acquired from travel,as you will have found later in your life,is no less valuable than that from any influential(有影响的)reference book.Traveling is one of the most important activities and people have been interested in it for many years. Modern traffic develops fast,so traveling to different places has become much easier than before.Staying healthy while travelling can make your trip happier.But do you know how to keep healthy during a trip?I’m sure you’ve asked this when traveling,“Can I drink the tap water?”It is easy to get confused about where it’s safe to drink and where it’s not,especially if you’re planning a multi-destination trip. Some countries like India and Mexico are well known for unsafe tap water but where else is it a health risk?If you want a quick reference for where on the earth the water is safe,we can get a helpful graph(图表).It is created by Just the Flight.All of the information about water safety is based on data from the CDC.The graph also shows pricing for bottled water and beer for each country as well!Have plans to travel to a place where the tap water is deemed(认定的)unsafe?Remember to skip ice in your drinks and avoid uncooked fruit and vegetables unless they’ve been peeled(削皮).Make sure to use bottled water when brushing your teeth as well.Please know that not all of the countries listed on the graph have dirty or polluted water.I know from personal experience:tap water may be safe at different elevations(海拔)and in different areas within a country shown as unsafe on the graph.Finally,further research is required.However,if you fall short of that,you’d better follow the advice on the graph to avoid an uncomfortable case of traveler’s illness.It’s definitely better to be safe than sorry!Be sure not to eat dirty food or bad fruit.Have enough time to take a rest during your trip.69.In the sentence“you can meet and make friends with people of different colors and races.”The underlined word“races”refers to_________.A.matchesB.placesC.nationspetitions70.The main reason why people like travelling is________.A.only for pleasure for themselves and making friends with different people.B.not only for pleasure but also for learning and gaining knowledge of other countries.C.not only for pleasure for themselves but also for enjoying local food.D.only for having a real relaxation and seeing typical beautiful scenery.71.What makes travelling to different places become much easier than before?A.The world becoming smallerB.The fast development of modern trafficC.More and more planes trains and taxisD.People having more money72.Which of the following is right for the last three paragraph?A.Drinking Tap Water is Good for Our Health.B.How Can We Get Tap Water?C.Where on the Earth can You Drink Safe Tap Water?D.It is of great help when traveling.73.What can we learn from the graph?A.It only contains the information about water safety.B.It was created by the CDC.C.It also shows pricing for some kinds of wine.D.It is of great help when traveling.74.The passage is most likely to be found in_________.A.a tourist magazineB.an academic essayC.a news reportD.a short-story collectionB.Choose the words or expressions and complete the passageWhy is setting goals important?Because goals can help you do,be and experience everything you want in life.Instead of just letting life happen to you,goals allow you to make your life happen.Successful people__75__how their life should be and set lots of goals.By setting goals you are taking control of your life.It's like having a map to show you where you want to go.Think of it in this way.There are two drivers.One has a destination in mind(her goal)which can be found on a map.She can drive straight there without any__76__time or wrong turns.The other driver has no goal or destination or map.She starts off at the same time from the same place as the first driver,but she drivers aimlessly around,never getting anywhere,just using up gas.Which driver do you want to be?Winners in life set goals and follow through on them.They decide what they want in life and then get there by making plans and setting goals.__77__people just let life happen by accident.Goals aren’t difficult to set--and they aren’t difficult to reach.It’s up to you to find out what your goals really are.You are the one who must__78__what to achieve and in what direction to aim your life.Research tells us that when we write a goal down,we are more likely to achieve it.Written goals can be__79__regularly,and have more power.Like a contract(合同)with yourself,they are harder to neglect or forget.Also when you write your goals in a particular way you are able to make yourself continuously __80__situations that will bring you nearer to your goal.75. A.imagine B.discuss C.experience D.show76. A.free B.dull C.fixed D.wasted77. A.Lucky B.Young C.Ordinary D.Unsuccessful78. A.practice B.change C.admit D.decide79. A.improved B.reviewed C.set D.reached80. A.aware of B.worried about C.familiar with D.accustomed toC.Read the passage and fill in the blanks with proper words.There is a famous saying“Time and tide wait for no man.”What is time?Is it a thing to be saved or spent or wasted,like money?Or is it something we have no control over it,like the weather?Is it the same all over the world?That’s an easy question,you say.Wherever you go,a minute is60seconds,an hour is 60minutes,a day is24hours,and so forth.But in America,time is more than that.Americans see time as a valuable resource.Maybe that’s why they like the expression,“Time is money.”Because Americans believe time is a limited resource,they try to keep and m__81__it.People in the US often attend meetings or read books on time management.It seems that they all want to organize their time better.People try their best to press more life out of their time.To Americans,being on time is a way of showing respect for other people’s time.Being more than10 minutes late usually calls for an apology and an e__82__.People who are running late often call ahead to let others know that they can’t be on time.Of course,the less formal(正式的)the situation is,the less important it is to be exactly on time.At informal get-togethers,for example,people often arrive as much as30minutes late.But they usually don’t try that at work.American lifestyles show how much people respect the time of others.When people plan an event, they often set the time days or weeks before it.Once the time is f__83__,it is almost impossible to change it.If people want to come to your house for a friendly visit,they will usually call first to make sure it is convenient.Only very close friends will just“drop by”unannounced.Also,people s__84__call others late at night for fear they might be in bed.The time may be different,but most people think twice about calling after10:00p.m..Even Americans would agree that no one can master time.Time,like money,slips all too easilyt__85__our finger.And time,like the weather,is very hard to predict.However,time is one of like’s most valuable gifts.In fact,time is more valuable than money.Why?Because when money is spent,we can earn it back. H__86__,when time is lost,it will never return.This is the reason why we must value time.The time we have is limited.Every second is precious.We should make full use of our time.But there are a lot of people who do not know the importance of time.They kill away their time chatting, smoking,drinking or gambling.They do not realize that wasting time is s__87__wasting their valuable life.So we should get into the good habit of saving time.Do not leave what can be done today until ziness will not only bring us failure but also lead us to the road of poverty(贫困).D.Answer the questions.Tropical rain forests grow in warm,wet areas.With so much rain the soil in rain forests is very dark and rich for plants to grow.More than half of the tropical plants in the world grow in rain forest. Thousands of animals live in them,too.More than50,000,000people live in the rainforests of the world and most of them do not hurt the forest they live in.They eat the fruits that grow on the forest trees,but they do not cut them down.They kill some animals to eat,but they do not destroy them.In1900,there were1,000,000forest people in the Amazon forest.In1980,there were only200,000.The Yanmomami(亚诺玛米人)live along the rivers of the rainforest in the north of Brazil.They have lived in the forest for about10,000years and they use more than2,000different plants for food.But in the later1950s some strangers came and began looking for gold.They cut down the forest to make roads. They made more than a hundred airports.The Yanimami people lost land and food.Many died because new diseases came to the forest with the strangers.The Yanimami people tried to save their forest,because it was their home.But the people who wanted gold were stronger.Many forest people try to save their forests.Chico Mendes was famous in Brazil because he wanted to keep the forest for his people.“I want the Amazon forest to help all of us–forest people,Brazil,and all the earth,”he said.A few months later,in December1988,people who wanted to cut down the forest killed Chico Mendes.In Borneo,people were cutting down the forest of the Penan people to sell the wood.The Penan people tried to save their rainforest.They made blockades(堵塞)across the roads into the forest.In1987 they closed fifteen roads for eight months.No one cut down any trees during that time.In Panama,the Kuna people saved their forest.They made a forest park which tourists pay to visit.The Gavious people of Brazil use the forest,but they protect it as well.They find and sell the Brazil nuts which grow on the forest trees.88.Most people do not hurt the forests they live in,do they?89.How many people left the Amazon forest from1900to1980?90.What happened to the Yanimami people when new diseases came with the strangers?91.Why did Chico Mendes become famous in Brazil?92.How did the Penan people try to save their rainforest?93.Whose way of protecting the forest do you prefer,the Kuna peoploe’s or the Gavious people’s?Why? VII.WritingWrite at least60words about the topic“My favorite festival”（以“我最喜欢的节日”为题写一篇不少于60~80词的短文，标点符号不占格。

上海市九年级上学期数学10月月考试卷姓名:________ 班级:________ 成绩:________一、单选题 (共9题；共18分)1. （2分） (2019九上·普陀期中) 下列函数中，是二次函数的为（）A .B .C .D .2. （2分）已知α，β是关于x的一元二次方程x2+（2m+3）x+m2=0的两个不相等的实数根，且满足+=-1，则m的值是（）A . 3或-1B . 3C . 1D . –3或13. （2分）关于x的方程a（x+m）2+n=0（a，m，n均为常数，m≠0）的解是x1=﹣2，x2=3，则方程a（x+m ﹣5）2+n=0的解是（）A . x1=﹣2，x2=3B . x1=﹣7，x2=﹣2C . x1=3，x2=﹣2D . x1=3，x2=84. （2分） (2018九上·无锡月考) 已知关于的一元二次方程的一个根是，则等于（）A . 5B . 4C . 3D . 25. （2分）如图，若将左图正方形剪成四块，恰能拼成右图的矩形，设a=1，则b=（）A .B .C .D .6. （2分）(2017·和平模拟) 将二次函数y=x2﹣2x的图象向上平移1个单位长度，再向右平移2个单位长度，对于得到的新的二次函数，y的最小值是（）A . ﹣2B . ﹣1C . 0D . 17. （2分）下列函数中，是二次函数的为（）A . y=8x2+1B . y=8x+1C . y=D . y=8. （2分）二次函数y=ax2+bx+c的图象如图所示，在下列说法中：①abc0；②a+b+c0；③4a-2b+c0；④当x1时，y随着x的增大而增大．正确的说法个数是（）A . 1B . 2C . 3D . 49. （2分）(2019·上海模拟) 某商店9月份的销售额为a万元，在10月份与11月份这两个月份中，此商店的销售额平均每月增长x%，那么下列11月份此商店的销售额正确是（）A . a（1 + x%）B . （1 + x%）2C . a（x%）2D . a（1 + x%）2二、填空题 (共5题；共5分)10. （1分）(2018·温州模拟) 已知关于的方程有两个相等的实数根，则k=________．11. （1分）如果是一元二次方程的两个实数根，则 ________．12. （1分） (2019九上·湖州月考) 函数图像的顶点坐标是________13. （1分）若直线y=m（m为常数）与函数y=的图象恒有三个不同的交点，则常数m的取值范围是________14. （1分） (2017九上·邗江期末) 二次函数y=x2+5的图象的顶点坐标为________．三、解答题 (共9题；共117分)15. （30分）用合适的方法解方程（1）x2﹣3x=0（2）（2x﹣1）2=9（3）（x﹣5）（3x﹣2）=10（4）x2+6x=1（5）（2x﹣3）（x+1）=x+1（6）6x2﹣x﹣12=0．16. （15分）综合题。

2018—2019学年上海市虹口区新华初级学校初三年级上学期10月月考考试试卷Part 2 Phonetics, Grammar and Vocabulary（第二部分语音、语法和词汇）Ⅱ.Choose the best answer.20. Which of the following underlined parts is different in pronunciation from others?A.She has to control her weight.B.It's really hard to complete the task in time.C. It is very common in china.D.Mr. Johnson complained again.[参考答案] C[思路解析] common 发/ɒ/ control 发/ə/ complete 发/ə/ complained 发/ə/ 故选C21. I wonder what it feels like to be one of _____ really rich. The Browns already have two rolls-Royces and now they are buying______ thirdA the; aB a; theC /; aD /; the[参考答案]A[思路解析]the+adj 表一类人；a+序数词表再一22. Modern architects always try to design hotels with well-furnished and restaurants with for ______ indoor gardens.A rooms; roomsB room; roomsC rooms; roomD room; room[参考答案] C[思路解析]作可数表房间，作不可数表空间23. There were many people at the party yesterday. I tried to look for two seats to sit down with my friend, but there were_______.A. neither B nothing C no D none[参考答案] D[思路解析] none 表数量上没有24. The journalist on ______ has been raising the game question again and again.A 2 RowB 2nd rowC Row 2D the Row 2[参考答案] C[思路解析]数词的表达方式同Room 203 故选C Row 225.Boris has brains, in fact, I doubt whether anyone in the class has_______ IQ.A a highB a higherC the higherD the highest.[参考答案] B[思路解析]根据题意有一个更高的IQ 故选B26.The little girl couldn't work the problem out. She wasn't _____ clever.A thatB muchC enoughD too[参考答案] A[思路解析] that等于so27.---Karen, you seem to have been annoyed with me frequently. Could I have a word with you?---Oh, yes, if you ________A canB mustC mayD should[参考答案] B[思路解析]固定搭配如果真的有必要28. After the earthquake, the injured were cared _____ in the local hospitals or taken by ear to the hospitals in neighboring cities.A ofB afterC forD about[参考答案] C[思路解析] care for 关心照顾29. Despite setbacks(挫折), I think we shall manage to complete the work _____ schedule. A in B on C beforeD with[参考答案] B[思路解析] on schedule 固定搭配按照预定时间30. By the time Ron______ back to our rescue, most of us will have been washed away by the flood. We must take a quick measure to leave here as soon as possible.A comeB comesC cameD will come[参考答案] B[思路解析]根据主句一般将来完成时，从句一般现在时表将来31.Sales of CDs have greatly increased since the early nineteen 1990’s, when people_____ to enjoy the advantage of this new technology.had begun B begin C have begun D began.[参考答案] D[思路解析] when引导表示过去的从句32.---You could have asked Mr.Johnson for help. He is a kind-hearted.---I forgot. A whole day _________.A wastesB was wastedC had wastedD is wasted[参考答案] B[思路解析]被动语态，根据题意一整天被浪费33. Just imagined_____ all the way for nothing, and then you will understand his anger. A going B to go C goneD go[参考答案] A[思路解析]固定搭配imagine doing34.I didn't mean_____ anything, but the cakes looked so good that I couldn't resist trying one.A eatingB eatC to eatD ate.[参考答案] C[思路解析]didn’t mean to do 本打算做但没做35 ---Why is Lizzy late again?---She called to apologize, but I don't know______.A that her reason can beB what her reason can beC that can be her reasonD what can be her reason[参考答案] B[思路解析]宾语从句从句用陈述语序36. The scientists say_____ we control greenhouse gases now, we could save many more plants and animals from extinction.A althoughB untilC unlessD if[参考答案] D[思路解析]根据题意如果我们控制温室效应气体，我们能拯救更多的植物和动物，故选if37. Don't ever say that you wouldn't come again, since you can't keep your word,___? A will you B shall IC can youD shall we[参考答案] A[思路解析]祈使句反义疑问句will you38.---When shall we meet, at 6:00 or at 6:30?A at any timeB You make the timeC Well, either time will doD Any time is OK[参考答案] C[思路解析]两者之中任何一个用either39.--- How would you like your coffee, madam?---_________.A It's well done.B Very nice. Thank you.C One cup. That's enough. D. The stronger the better.[参考答案] D[思路解析]根据题意，问句的意思需要什么样的咖啡，故选DⅢ. Complete the following passage with the words in the box. Each can be used only once（将下列单词填入空格。

上海市九年级上学期数学10月月考试卷姓名:________ 班级:________ 成绩:________一、单选题 (共10题；共20分)1. （2分）(2017·曲靖模拟) 如图，下列哪个不等式组的解集在数轴上表示如图所示（）A .B .C .D .2. （2分）(2020·石家庄模拟) 关于的方程有两个相等的实数根.则反比例函数的图象在（）A . 第一象限B . 第二象限C . 第三象限D . 第四象限3. （2分）已知反比例函数,当x＞0时,y随x的增大而增大,则关于x的方程的根的情况是（）A . 有两个正根B . 有两个负根C . 有一个正根一个负根D . 没有实数根4. （2分）(2018·宁晋模拟) 已知函数y=kx+b的图象如图所示，则一元二次方程x2+x+2﹣k=0根的情况是（）A . 没有实数根B . 有两个相等的实数根C . 有两个不相等的实数根D . 无法确定5. （2分）已知∣x－2∣+=0，则点P（x,y）在直角坐标系中（）A . 第一象限B . 第二象限C . 第三象限D . 第四象限6. （2分）(2016·无锡) 一次函数y= x﹣b与y= x﹣1的图象之间的距离等于3，则b的值为（）A . ﹣2或4B . 2或﹣4C . 4或﹣6D . ﹣4或67. （2分）使关于x的分式方程的解为非负数，且使反比例函数图象过第一、三象限时满足条件的所有整数k的和为（）A . －1B . 0C . 1D . 28. （2分）函数y=ax2+bx+c的图象如图所示，那么关于x的一元二次方程ax2+bx+c-2=0的根的情况是（）A . 有两个不相等的实数根B . 有两个异号的实数根C . 有两个相等的实数根D . 没有实数根9. （2分）如图，△ABC是直角三角形，∠A=90°，AB=8cm，AC=6cm。

点P从点A出发，沿AB方向以2cm/s 的速度向点B运动，同时点Q从点A出发，沿AC方向以1cm/s的速度向点C运动，其中一个动点到达终点则另一个动点也停止运动，则△APQ的最大面积是（）A . 0cm2B . 8cm2C . 16cm2D . 24 cm210. （2分） (2020九下·龙岗月考) 下列命题是假命题的是（）A . 三角形的外心到三角形的三个顶点的距离相等B . 如果等腰三角形的两边长分别是5和6，那么这个等腰三角形的周长为16C . 将一次函数y＝3x-1的图象向上平移3个单位，所得直线不经过第四象限D . 若关于x的一元一次不等式组无解，则m的取值范围是二、填空题 (共6题；共6分)11. （1分） (2018七下·马山期末) 已知点A(a，0)和点B(0，5)两点，且直线AB与坐标轴围成的三角形的面积等于10，则a的值是________.12. （1分）在平面直角坐标系中，点P(m，m-2)在第一象限内，则m的取值范围是________13. （1分） (2020七下·新洲期中) 以方程组的解为坐标的点在第________象限.14. （1分）已知二次函数y=x2+bx+5（b为常数），若在函数值y=1的情况下，只有一个自变量x的值与其对应，则此时b的值为________15. （1分） (2017七下·上饶期末) 若点（1﹣2m，m﹣4）在第三象限内，则m的取值范围是________．16. （1分）方程mx2-4x+1=0的根是________．三、解答题 (共9题；共95分)17. （5分）解分式方程:18. （5分）已知x=﹣1是方程x2+mx﹣5=0的一个根，求m的值及方程的另一个根．19. （10分） (2019九上·潮阳月考) 如图,BD 是菱形ABCD 的对角线,∠A＝30°．（1）请用尺规作图法,作AB 的垂直平分线EF,垂足为E,交AD 于F;(不要求写作法,保留作图痕迹)（2）在(1)的条件下,连接BF,求∠DBF 的度数．20. （10分） (2019九上·潮阳月考) 如图：一块长 10 米，宽 8 米的地毯，为美观设计了两横、两纵的条纹，已知条纹的宽度相同，条纹外的部分占整个地毯面积的（1）求条纹的宽度；（2）如果地毯配色条纹部分每平方米造价 200 元，其余部分每平方米造价 100 元，求地毯的总造价。

2018-2019学年上海市普陀区九年级（上）第一次月考物理试卷（10月份）一、选择题（共16分）下列各题均只有一个正确选项，请将正确逸项的代号用2B铅笔填涂在答题纸的相应位置上，更改谷案时，用橡皮擦去，重新填涂1．（2分）下列物理量中，其大小不随温度变化而变化的是（）A．密度B．质量C．体积D．电阻2．（2分）载重汽车的轮子比普通汽车多，是为了（）A．增大压力B．增大压强C．减小压力D．减小压强3．（2分）下列装置工作时不能看作连通器的是（）A．密度计B．液位计C．船闸D．茶壶4．（2分）一张试卷放在水平桌面的中央，它对桌面的压强最接近于（）A．0.1帕B．1帕C．10帕D．100帕5．（2分）如图所示，取完全相同的长方体物体1块、2块、3块分别竖放、平放、竖放在水平地面上，它们对地面的压强分别为P a、P b和P c（已知长方体的长＞宽＞高），则（）A．P a=P c＞P b B．P a=P c≤P b C．P a＞P b＞P c D．P a＜P b＜P c6．（2分）如图所示，一个装满水的饮料瓶，正放在水平桌面上，瓶底对桌面的压力为F a，压强为P a；倒放在桌面上后，瓶底对桌面的压力为F b，压强为P b则（）A．F a=F b P a＜P b B．F a＞F b P a=P bC．F a=F b P a=P b D．F a＜F b P a＜P b7．（2分）形状相同、大小不同的甲、乙两个长方体长分别为a和b，如图所示，则下列判断中正确的是（）A．若两长方体质量相同，则ρ甲：ρ乙=a：bB．若两长方体质量相同，则C．若两长方体材料相同，则m甲：m乙=a：bD．若两长方体材料相同，则8．（2分）如图4所示，水平面上的圆柱形容器A、B中分别盛有甲、乙两种液体，且甲对容器底部的压强等于乙。

现在两容器中均抽出一部分液体。

小明认为：若抽出液体的高度相等，甲对容器底部的压强一定小于乙；小红认为：若抽出液体的质量相等，甲对容器底部的压强一定大于乙；下列说法中正确的是（）A．只有小明的观点正确B．只有小红的观点正确C．两人的观点均正确D．两人的观点均不正确二、填空題（共24分）请将结果填入答題纸的相应位置9．（3分）地球的平均密度为5.5克/厘米3，合千克/米3，读作；已知地球体积为1.0×1021米3，由此可得地球的质量为千克。

2018学年第一学期九年级英语学科十月测试试卷（总分：150分，时间：100分钟）Part 2 Phonetics, Grammar and Vocabulary（第二部分语音, 语法和词汇）I. Choose the best answer (选择最恰当的答案) 20%II. Complete the following passage with the words or phrases in the box. Each can only be used once.(将下列单词或词组填入空格。

每空格限填一词，每个人单词只能用一次)8%February 14th is Valentine's Day. Valentine's Day is a day for romance(浪漫) and love. Valentine's Day is celebrated in many countries around the world, __46__ Japan, the United States, and the United Kingdom. You see a lot of romantic symbols on Valentine's Day. For example, many__47__give each other roses. To give someone flowers at any time of year is romantic,and as roses are a symbol of romance,roses on Valentine's Day are especially popular.__48__, people don't just buy flowers. People buy cards,candles and balloons and many other things,often in the shape of a__49__.The presents might be something small and sweet or something big and dramatic. Although Valentine's Day is generally romantic,many people like to use the day to celebrate any kind of love-including love of friends and family. 【答案解析】ECDA46.世界上许多国家都庆祝情人节，包括日本，美国，英国···· 47.many+可数名词复数，许多的情侣都给彼此送花 48.当然，人们并不只是买花。

上海市 2018-2019 学年上学期九年级 10 月月考英语试题分类汇编阅读选择2018-2019 学年上海市新华初级中学初三上学期 10 月月考试卷A During my growth, my parents always told me the importance of family and faith over material possessions. Yet, money and all the new, interesting things it could buy did not escape me. As I entered my freshman year, my bank card and I engaged in quite the dates. Between game-day dresses, steak dinners and wonderful downtown Athens, I quickly used up 17 years' worth of savings.By the time summer came around, I didn't consider how much cash I had spent, or how many thingsI had bought. I was focused on how much more money I would need for next autumn. When I wasn't working, I was checking my bank account, try to figure out if my next paycheck would afford those pillows that would look so cute in my new apartment. My bank account balance was becoming a major source of stress in my life, creating tension with my financially smart parents and causing me lasting concern. Finally, after a very heated argument with my Dad, I accepted the truth: I simply could not afford money anymore.I realized that I was much happier when money was just something in the bank. While the clothes are pretty and those pillows are comfy, they lost their attraction right around the second a new item caught my eye. At the end of the summer, I let go of my financial issues-after all, I can't buy more time with my friends and family before going back to Athens.I still check my bank account. I still go shopping once in a while. But now, those aren't important. My money loss taught me that I shouldn't take wealth as a means of satisfaction and happiness. Instead, my happiness should come from the moments and people that cannot be bought, exchanged, or returned. There are some things that money can't buy. Go after them." Unlike cash, this form of wealth grows the more I give. 63. The underlined sentence in paragraph 1 probably mean ________. A. I had trouble opening my own bank account B. I was busy taking part in activities and fell short of moneyC. I was unable to financially support myself on study that year D. I became interested in going on dates with friends 64. The author mentions the heated argument with Dad in paragraph 2 in order to _____. A. prove how selfish his Dad is B. show how to settle problems with others C. show generation gap between Dad and Son D. explain material possessions get him into trouble 65. According to the passage, the author feels happy now mainly because _____. A. the appeal of money is inescapable B. he values the love between his family and friends C. he has paid off his debt in cash D. his wealth grows by working hard every day 66. The word "comfy" (paragraph 4) probably means _____. A. realistic B. individual C. gracious D. comfortable 67. Which of the following statements about the author is wrong? A. The author used to spend money without thinkinbg much B. The author began to realize what money meant after he fell into financial trouble C. The author never cared about his bank account balance in the past D. The author leads a happier life now because he has right attitude towards money. 67. Which of the following might be the best title of the passage? A. Seeking a different kind of wealth B. Letting go of different sufferings C. Wealth as a means of satisfaction D. Happiness grows out of hardships 63. B Between game-day dresses, steak dinners and wonderful downtown Athens, I quickly used up 17 years' worth of savings. 64. D I accepted the truth: I simply could not afford money anymore.65. B love between his family and friends 66. D 67. C his bank account balance in the past 68. A Love2018-2019 学年上海市长宁区民办新世纪初三英语 10 月月考试卷Choose the best answer (根据短文内容，选择最恰当的答案):(6 分)Three students are choosing a course at the West Midlands College of Technology.'Clara:At first I thought about the Sports Studies Course because I really enjoy swimming and football，but in' the end I decided that the Leisure(休闲) and. "Tourism Course is better for me, You see, Ilike meeting people and I’d really like to work abroad for a few years, maybe as a tour guide or ina hotel, maybe in Spain.Taka:I'd really like to do a course in art because I'm very interested in art ,butI have to think about myjob. I work as a fashion designer and when I go back to Japan I want to use a computer to designclothes, so I'm going to the Information Technology Course. I can study art and photography(摄影)in my free timeBen:Yeah, well, I want to have a good time at college, you know ,meet lots of people and I don't wantto work too much !I like computers a lot and I might.' do a job with computers one day in thefuture, but at .the moment I'm really interested in music, you know. I'm in a rock band, so I'vedecided to do the. Performing Arts Course. Then in the first year I can do music and in the secondyear I'll probably do a course in singing. Then my friends in the band and I can be rich andfamous!.44.Clara wishes to become aafter leaving college.A footballer B swimmer C hotel manager . D tour guide答案：D解析：本题考查细节题；根据：I’d really like to work abroad for a few years, maybe as a tourguide or in a hotel，选D;45. We can learn from the passage that Clara is a(n)______person. A patient B active C gentle D traditional 答案：B 解析：本题考查推断题；根据：I like meeting people and I’d really like to work abroad for a few years，选B; 46. From Taka's introduction we know that she is from A Spain B Britain ' C Japan D Thailand 答案：C 解析：本题考查细节题；根据：I work as a fashion designer and when I go back to Japan， 对应文中段落，是一个日本人； 47. Taka wants to learn with computers from the Information Technology Course. A how to design clothes B how to make photos better C how to draw well D how to design indoor decorating 答案：A 解析：本题考查细节题；根据：I want to use a computer to design clothes, so I'm going to the Information Technology Course，选A; 48. Ben would like to during his study at college. A. study more. on computers. B. set up a. new rock band. C. do more part-time jobs. D. focus on music and singing. 答案：D 解析：本题考查细节题；根据：but at .the moment I'm really interested in music以及I'll probably do a course in singing.，选D; Besides the Performing Arts Course，__________ might be another good choice for Ben. A. the Leisure and Tourism Course. B. the Sports Studies Course .C. the Information Technology CourseD. the Fashion Designing Course.. 答案：C 解析：本题考查推断题；根据： I want to have a good time at college, you know ,meet lots of people and I don't want to work too much !I like computers a lot and I might，既然他喜欢电 脑，就应该去上信息技术课；上海市明珠中学 2018-2019 学年第一学期九年级英语学科十月测试试卷A. Choose the best answer.(根据短文内容，选择最恰当的答案)12% EarthquakeEvery 30 seconds there is an earthquake. But don't worry because most cannot be felt. Only a few big ones hurt people.Many earthquakes happened in China, such as the big one in Sichuan. Thousands of people died in it. So it's important to know what to do when one hits. Here are some tips on how to stay safely in an earthquake.If you are indoors during an earthquake, hide under a desk. Stay away from windows and anything that could fall on you.If you are outdoors, move to a clear place. Try to be away from trees, signs,buildings and streetlights. These could fall on you.If you are in a shop and far from the door, don't try to run to outside and rush for exits. Everyone will be doing that and you'll find it hard getting out. Don't get into a lift during an earthquake. Just hide under some strong covers near you.If you are at home and you smell gas, open the windows and get out of the building as quickly as you can. A gas line in your house may be broken.This could be very dangerous.Weather Different weather makes people feel different. It influences health, intelligence) and feelings. In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month The weather can also influence intelligence. For example, in 1983 a study by scientists showed that the IQ of a group of students was very high when a very strong wind came, but afterthe strong wind, their IQ was 10% lower. The wind can help people have more intelligence. Very hot weather, on the other hand, can make it lower.Students in many schools of the United States often do worse on exams in the hot months of the year(July and August).Weather also has a strong influence on people’s feelings. Winter may be a bad time for thin people. They usually feel cold these months. They might feel unhappy during cold weather. But big people may have a bard time in bot summer. At about 18C,people become stronger.Are you feeling sad, tired or unhappy today? It may be the weather's fault.( ) 69.Most earthquakes are too ______to hurt people.A. strongB. weakC. dangerousD. heavy( ) 70.If you're in a shop and far from the door, you'd better______.A.rush to the door right awayB.run after the people quicklyC.rush to a lift to get downD.hide yourself under a cover near you( ) 71.The passage Earthquake tells us______.A. how dangerous the earthquake isB. how to be safe in an earthquakeC. we shouldn't be afraid of the earthquakeD.why the earthquake happens( ) 72._____can have a bad effect on health.A.Hot and wet weatherB.IQC.High intelligenceD.Feelings( ) 73.People may have more intelligence when_____comes.A.a rainB.very hot weather C.a windD.summer( ) 74.You may find the passage Weather in a(an)______.A. novelB. fableC. advertisementD. science book【答案解析】69-74 BDBACD 69.细节题，Every 30 seconds there is an earthquake.But don't worry because most cannot be felt.故选 B70.推断题 If you are indoors during an earthquake, hide under a desk.可知答案为 D 71.总结题，根据文章大意可知，文章主要说明在地震中自保的方法，故选 B 72.细节题。

2018—2019学年度第一学期月考试卷（十月月考）数学参考答案及评分标准一、选择题（本大题共10小题，每小题4分，共40分）二、填空题（本大题共4小题，每小题5分，共20分）11.300(1+x)2=507； 12. 2； 13. y=-x 2-1； 14.2或 （说明：第14题只要答对1个，就给2分；但是出现多解、错解整题不得分） 三、（本大题共2小题，每小题8分，满分16分）15.解：∵ 1x =是关于x 的方程2220x mx m --=的一个根， ∴ 2120m m --=.∴ 221m m +=. …………………………………………………………4分 ∴ 2(2)211m m m m =++= ……….……………………………………8分 16.解：解方程x 2﹣10x+21=0得x 1=3，x 2=7. …………………………………………4分 ∵3＜第三边的边长＜9，∴第三边的边长为7． ……………………………………………………6分 ∴这个三角形的周长是3+6+7=16． …………………………………………………8分 四、（本大题共2小题，每小题8分，满分16分）17.解：设正方形池底的边长为xm ． ………………………………………………1分由题意，可得200x 2+100×（4×2x ）=6400 …………………………………………5分 整理，得x 2+4x ﹣32=0． ∴（x ﹣4）（x+8）=0，∴x 1=4，x 2=﹣8（不合题意，舍去）答：正方形池底的边长为4m ． …………………………………………………8分 18.（1）证明：∵四边形CEFG 是正方形，∴CE=EF ， ∵∠FEC=∠FEH+∠CED=90°，∠DCE+∠CED=90°，∴∠FEH=∠DCE. ………2分 在△FEH 和△ECD 中，由AAS 可证△FEH ≌△ECD ，∴FH=ED. ………………4分 （2）∵AE=x ，则ED=FH=4﹣x ， ∴S △AEF =1 2 AE•FH= 1 2 x （4﹣x ）=﹣ 12（x ﹣2）2+2＜3， ∴不存在这样的x 使得△AEF 的面积为3. ………………………………………8分五、（本大题共2小题，每小题10分，满分20分）19.解：(1)∵方程有两个不相等的实数根，∴△＞0.∴△=16-8m ＞0.∴m ＜2………………………………………………………………4分 (2)∵m ＜2，且m 为非负整数，∴m=0或1 ……………………………………………………………………………6分 当m=0时，方程为x 2-4x=0，解得x 1=0，x 2=4，符合题意；当m=1时，方程为x 2-4x+2=0，根不是整数，不符合题意，舍去.综上m=0 …………………………………………………………………………10分 20.解：(1)作图正确 ………………………………………………………………………3分 (2) ∵A （0，-3），B （3，0），C （1，-4）…………………………………………6分∴AB=BC= ……………………………………………9分 ∴AC 2+AB 2=BC 2 ∴∠CAB=90° ………………………………………………………………………10分 六、（本题满分12分）21.解：（1）由题意，得200﹣20×（12﹣10）=160． …………………………3分 （2）设每件售价定为x 元. ………………………………………………………4分 由题意，得（x ﹣8）[200﹣20（x ﹣10）]=640， ………………………………8分 解得x 1=16，x 2=12．答：要使每天利润达到640元，则每件售价应定为16或12元.………………12分 七、（本题满分12分）22.解：(1)由题意可得，抛物线经过(2，94)和(8，0)，代入()24=-+y a x k ，∴⎩⎪⎨⎪⎧16a ＋k ＝0，4a ＋k ＝94.………………………………………………………………………4分 解得a=316-,k=3 ∴y＝－316(x-4)2＋3. …………………………………………………………………6分 (2)由题意可得：当y ＝1.5时，1.5＝－316(x-4)2＋3， 解得x 1＝4＋22，x 2＝4－22………………………………………………………10分 故DE ＝|x 1－x 2|＝|4＋22－(4－22)|＝4 2.即横梁DE 的宽度最多是42米． …………………………………………………12分八、（本题满分14分）23．解：（1）∵二次函数图象的顶点在原点O，∴设二次函数的解析式为y=ax2……………………………………………………2分将点（1，14）代入y=ax2得a=14∴二次函数的解析式为y=14x2. ……………………………………………………4分（2）证明：∵点P在抛物线y=14x2上，∴可设点P的坐标为（x，14x2），如右图，过点P作PB⊥y轴于点B，则BF=14x2﹣1，PB=x，∴Rt△BPF中，=14x2+1，∵PM⊥直线y=﹣1，∴PM=14x2+1，∴PF=PM. ………………………………………………………………………8分∴∠PFM=∠PMF，又∵PM∥x轴，∴∠MFH=∠PMF，∴∠PFM=∠MFH，∴FM平分∠OFP. …………………………………………………………………10分（3）当△FPM是等边三角形时，∠PMF=60°，∴∠FMH=30°，在Rt△MFH中，MF=2FH=2×2=4，∵PF=PM=FM，∴14x2+1=4，解得：x=±（舍去…………………………………………………12分∴14x2=14×12=3，∴满足条件的点P的坐标为（3）．……………………………………14分【注：以上各题解法不唯一，学生的答题只要合理，均应酌情给分】。

2018-2019学年上海市浦东新区上中东校九年级上学期10月月考物理试卷（完成时间：60分钟，满分：90分）一、单选题1.下列说法中正确的是（）A.只有上浮的物体才受到浮力,下沉的物体没有受到浮力B.将体积不同的物体浸在水中,体积大的物体受到的浮力一定大C.密度大于水的物质构成的物体也可以浮在水面上D.物体只有浸在液体中才会受到浮力的作用【答案】C【解析】浸在液体或气体中的物体（只要物体不与容器地紧密接触）均受到浮力的作用；浮力的大小只与液体的密度和物体排开液体的体积有关，与物体重力无关。

2.大江、湖泊和河流构成相通的水网,下列选项中和其原理一致的是( )A.用抽水泵排涝B.拦河大坝上窄下宽C.三峡双线五级船闸D.驶入长江的油轮【答案】C【解析】上端开口，下端连通的容器叫连通器，水网是应用了连通器原理。

3.下面所列动物的特征中能够增大压强的是（）A.小狗有尖尖的牙齿B.蜈蚣腹部有许多足C.骆驼的脚掌宽大D.蛇的体表覆盖粗糙的鳞片【答案】A【解析】略。

4.如图,往浴缸中匀速注水直至注满,下列表示此过程中浴缸底部受到水的压强随时间变化的曲线,其中合理的是（）【答案】D【解析】水对容器底的压强与深度成正比，该容器是口大底小，相同时间水的深度变化越来越小，压强增加量原来越小，故选D.5.将适量的橡皮泥粘在铅笔的一端(能使铅笔竖直浮在液体中),这就制成了一个很有用的简易密度计。

将它分别置于甲、乙两杯液体中,静止时的情景如图1所示。

下列说法正确的是（）A.该简易密度计在甲杯液体中受到的浮力较大B.该简易密度计在乙杯液体中受到的浮力较大C.乙杯液体的密度较大D.甲杯液体的密度较大【答案】C【解析】密度计在任何液体中均处于漂浮状态，浮力大小始终等于密度计的重力大小，故A,B 均错误；浮力一定的情况下，液体密度越大，密度计浸在液体中的体积越小，由图可知，乙液体密度比甲液体密度大，故选C.6.图2所示,重为G的实心金属块,用细线拉着静止在水面下。

2018学年度第一学期10月教学质量自主调研九年级数学一、选择题1. 下列图形中，形状一定相同的两个图形是（ ） A. 两个直角三角形 B. 两个正三角形 C. 两个矩形D. 两个梯形2. 如果:1:2x y =，那么下列各式中不一定成立的是（ ）A.32x y y += B.12y x y -= C.21y x =D.1213x y +=+ 3. 在ABC V 中，点D 、E 分别在边AB 、AC 上，DE//BC ，那么下列线段比中，与DE:BC 相等的是（ ） A. AD:BE B. BD:AB C. AD:AB D. AB:AD4. 如图，在ABC V 中，点D 、E 分别是边AB 、BC 边上的中点，若DBE V 的周长是6，则ABC V 的周长是（ ） A. 8 B. 10 C. 12 D. 145. 如图，在平行四边形ABCD 中，点E 是边AD 的中点，EC 交对角线BD 于点 F ，则EF:FC 等于（ ） A. 3:2 B. 3:1 C. 1:1 D. 1:26. 下列四个三角形中，与右图中ABC V 的相似的是（ ）二、填空题7. 若23x y =，则:x y =____________8. 三角形甲与三角形乙相似，相似比为2:3,；三角形乙与三角形丙相似，相似比为3:4，则三角形甲与三角形丙一定相似，相似比为____________9. 如图，在ABC V 中，D 为边AC 上一点，∠ABD=∠C ，AD=2，AC=8，那么AB=____________10. 如果两个相似三角形的周长比为3:4，那么它们的面积比是____________11. 已知两个三角形相似，其中一个三角形的两个角分别为67°、43°，则另一个三角形的最大的内角为____________12. 如图，在ABC V 中，两条中线BE 、CD 相交于O ，则:DOE COB S S =V V ____________13. 如图，已知AB ⊥BD ，ED ⊥BD ，C 是线段BD 的中点，AC ⊥CE ，AB=BD=4，那 么ED=____________ 14. 已知点P 是线段AB 上的一个黄金分割点，且AB=1，AP>BP ，那么AP=____________15. 如图，在梯形ABCD 中，AD//BC ，∠B=∠ACD=90°，AB=2，DC=3，则ABC V 与DCA V 的面积的比为____________16. 如图，阳光通过窗口AB 照到室内，在地面上留下一个亮区ED ，已知亮区一边到窗下的墙脚距离CE=2.7m ，窗高AB=0.8m ，窗口底边离地面的高度BC=1m ，则亮区宽度ED=____________m 17. BE 、CF 分别是ABC V 的边AC 、AB 上的高，BE 与CF 相交于点D ，如果∠A=60°，则EF:BC 的值为____________18. 如图，等边ABC V 中，D 是BC 边上的一点，把ABC V 折叠，使点A 落在BC 边上的点D 处，折痕与边AB 、AC 分别交于点M 、N ，若AM=2，AN=3，那么边BC 长为____________三、解答题19. 已知023b c a ==≠，求2a b ca b-++的值20. 如图，已知AD//BE//CF ，它们依次交直线1l 、2l 于点A 、B 、C 和点D 、E 、F.（1）如果AB=6，BC=8，DF=21，求DE 的长； （2）如果DE:DF=2:5，AD=9，CF=14，求BE 的长.21. 如图，在ABC V 和ADE V 中，∠BAD=∠CAE ，∠ABC=∠ADE. （1）求证：ABC ADE V :V ；（2）判断ABD V 与ACE V 是否相似？并证明.22. 如图，点D 为ABC V 内部一点，点E 、F 、G 分别为线段AB 、AC 、AD 上一点，且EG//BD ，GF//DC. （1）求证：EF//BC ；（2）当35AE BE =时，求EFG BCD S S V V 的值.23. 如图，已知正方形ABCD 的边长为4，E 为DC 上一点，且DE=3，延长AE 交BC 延长线于点F. （1）求线段EF 的长；（2）在线段AE 上取一点M ，使EM=DE ，G 为AD 上一点，直线GM 交线段BC 于点H ，设AG x =，BH y =，求y 关于x 的函数解析式，并写出定义域.24. 已知：如图，在ABC V 中，AD 平分∠BAC 交BC 于D ，点E 在AD的延长线上，BE=BD. （1）求证：ABE ACD V :V ；（2）过点C 作CF//BE 交AE 于点F ，求证：2AD AE AF =⋅.25. 如图，已知在ABC V 中，AB=AC=6，BC=5，D 是AB 上一点，BD=2，E 是BC 上一动点，联结DE ，并作∠DEF=∠B ，射线EF 交线段AC 于F. （1）求证：DBE ECF V :V ；（2）当F 是线段AC 中点时，求线段BE 的长； （3）联结DF ，如果DEF V 与DBE V 相似，求FC 的长.。

…………装…校:___________姓名○…………订………绝密★启用前 2018-2019学年度???学校10月月考卷 试卷副标题 考试范围：xxx ；考试时间：100分钟；命题人：xxx 注意事项： 1．答题前填写好自己的姓名、班级、考号等信息 2．请将答案正确填写在答题卡上 第I 卷（选择题)请点击修改第I 卷的文字说明 一、单选题 1．大数据分析在方法论上需要解决的课题首先就在于：如何透过多层次、多维度的数据集，实现对于某一个人、某一件事或某一种社会状态的现实态势的聚焦，即真相再现。

这说明（ D ） ①事物之间都存在着必然的联系 ②联系的多样性导致真相很难再现 ③对具体问题进行具体分析是正确解决矛盾的关键 ④把握事物多样性对人们正确认识事物有重要意义 A ．①② B ．①③ C ．②④ D ．③④ 2．下图是国家标准委对酒后驾驶、醉酒驾驶的界定标准（以100ml 血液中的究竟含量为依据）。

由此图可知（ D ） ①做好量的积累，为质变创造条件 ②事物的质变就是由事物数量的变化引起的 ③要注重量的积累，做到防微杜渐 ④矛盾的主次方面在一定条件下相互转化 A ．①② B ．②④ C ．①③ D ．③④ 3．当前，国内外形势正在发生深刻复杂变化，我国发展仍处于重要战略机遇期，前景十分光明，机遇大于挑战。

十九大对新形势的研判体现了（ D ） ①绝对运动与相对静止的统一 ②运动与物质相统一③客观与主观具体的历史的统一④两点论与重点论相统一A．①②B．②③C．③④D．①④4．李克强指出，无论是人工智能还是量子通信，都需要数学、物理等基础学科作有力支撑。

我们之所以缺乏重大原创性科研成果，“卡脖子”就卡在基础学科上。

这说明（ A ）①应充分把握事物存在和发展的各种条件②矛盾的主要方面支配着事物发展的过程③主要矛盾对事物发展起着决定性的作用④创新有利于推动社会生产力发展A．①③B．①④C．②④D．②③请点击修改第II卷的文字说明参考答案1．D【解析】【详解】材料强调的是大数据通过数据集，实现对于某一个人、某一件事或某一种社会状态的现实态势的聚焦，这说明了对具体问题进行具体分析是正确解决矛盾的关键，把握事物多样性对人们正确认识事物有重要意义，③④符合题意；①说法错误，联系具有多样性，事物之间存在的不都是必然的联系；②说法错误，联系是多样的，但我们可以分析和把握事物存在和发展的各种条件，一切以时间、地点和条件为转移。

上海市九年级上学期数学10月月考试卷A卷一、单选题 (共12题；共24分)1. （2分）下列式子中：① ；② ；③ ；④ ；⑤ ；⑥ ．其中是二次根式的有（）A . 2个B . 3个C . 4个D . 5个2. （2分）(2019·紫金模拟) 函数y= 中自变量x的取值范围是（）A . x≥-3B . x≠-3C . x>-3D . x≤-33. （2分）下列是最简二次根式的是（）。

A .B .C .D .4. （2分） (2019八下·余姚月考) 下列计算中正确的是（）A . =B . = - =6-4=2C . ＝1D . = -25. （2分）若最简二次根式与是同类二次根式，则a的值为（）A . -2B . 2C . 1D . -16. （2分） (2019七下·昭平期中) 若关于x的方程x2+4x+a＝0有两个相等的实数根，则a的值为（）A . ﹣4B . 2C . 4D . 87. （2分）已知关于x的一元二次方程mx2+nx+k=0（m≠0）有两个实数根，则下列关于判别式n2﹣4mk的判断正确的是（）A . n2﹣4mk＜0B . n2﹣4mk=0C . n2﹣4mk＞0D . n2﹣4mk≥08. （2分） (2019九上·梅县期中) 若代数式2x2-5x与代数式x2-6的值相等，则x 的值是（）A . -1或6B . 1或-6C . 2或3D . -2或-39. （2分） (2019九上·沭阳月考) 已知一元二次方程2x2﹣5x+1=0的两个根为x1 ，x2 ，下列结论正确的是（）A . x1+x2=﹣B . x1•x2=1C . x1 ， x2都是有理数D . x1 ， x2都是正数10. （2分）(2019·哈尔滨模拟) 如图，在矩形ABCD中，AB＝4，BC＝6，当直角三角板MPN的直角顶点P在BC边上移动时，直角边MP始终经过点A，设直角三角板的另一直角边PN与CD相交于点Q．BP＝x，CQ＝y，那么y与x之间的函数图象大致是（）A .B .C .D .11. （2分） (2019八上·宝丰月考) 若，则的立方根为（）A . -9B . 9C . -3D . 312. （2分） (2019九上·天台月考) 《代数学》中记载，形如x2+10x=39的方程，求正数解的几何方法是：如图1，先构造一个面积为x2的正方形，再以正方形的边长为一边向外构造四个面积为的矩形，得到大正方形的面积为39+25=64，则该方程的正数解为8-5=3，小聪按此方法解关于x的方程x2+6x+m=0时，构造出如图2所示的图形，己知阴影部分的面积为36，则该方程的正数解为（）A . 6B .C .D .二、填空题 (共4题；共4分)13. （1分） (2016九上·武胜期中) 把方程3x2﹣1=4x化为一般形式是：________，其一次项系数是________，常数项是________．14. （1分）(2019·萍乡模拟) =2-a，则a的取值范围是________.15. （1分）若，则a=________ .16. （1分） (2019九上·无锡月考) 如果m，n是两个不相等的实数，且满足m2﹣m=3，n2﹣n=3，那么代数式2n2﹣mn+2m+2015=________.三、解答题 (共6题；共66分)17. （20分） (2019八下·天台期末) 计算：．18. （20分） (2019九上·江津期末) 用适当的方法解方程：（1） 2x2﹣4x+1=0；（2）（x﹣2）（x﹣3）=12；19. （1分） (2017八上·郑州期中) 如图，已知OA=OB，那么数轴上点A表示的数是________20. （10分） (2018九上·江苏月考) 已知：方程组有两组不同的实数解，．（1）求实数k的取值范围．（2）是否存在实数k，使？若存在，请求出所有符合条件的k的值；若不存在，请说明理由．21. （5分） (2019七下·江阴期中) 先阅读后解题:已知，求和的值解：把等式的左边分解因式：即因为，所以，即， .利用以上解法，解下列问题：已知：，求和的值.22. （10分） (2019九上·洮北月考) 为打造“文化九中，书香校园”，阜阳九中积极开展“图书漂流”活动，旨在让全体师生共建共享，校团委学生处在对上学期学生借阅登记簿进行统计时发现，在4月份有1000名学生借阅了名著类书籍，5月份人数比4月份增加10%，6月份全校借阅名著类书籍人数比5月份增加340人.（1）求6月份全校借阅名著类书籍的学生人数；（2）列方程求从4月份到6月份全校借阅名著类书籍的学生人数的平均增长率.参考答案一、单选题 (共12题；共24分)1、答案：略2、答案：略3、答案：略4、答案：略5、答案：略6、答案：略7、答案：略8、答案：略9、答案：略10、答案：略11、答案：略12、答案：略二、填空题 (共4题；共4分)13、答案：略14、答案：略15、答案：略16、答案：略三、解答题 (共6题；共66分)17、答案：略18、答案：略19、答案：略20、答案：略21、答案：略22、答案：略。

上海市2018-2019学年上学期九年级10月月考英语试题分类汇编阅读回答问题2018-2019学年上海市新华初级中学初三上学期10月月考试卷D .Answer the question (根据短文内容回答下列问题）Every girl dreams and Lisa is no exception. She has read dozens of books on how to be a ballerina(芭蕾舞女演员). “Swan Lake” is her favorite. She hop es one day her dream will come true. She has taken ballet lessons and all her teachers confirm she is a good student.One day she saw a poster that a famous ballerina group will be performing in her hometown. Her thoughts ran wild. "I must meet up with the leader of the group and show him my skills," she whispered to herself. When the troupe arrived, Lisa put on her ballet outfit(芭蕾舞装）and hid in the dressing room. To her luck, the leader entered and she timidly (胆怯地) knocked at the door. She bravely approached him and handed him a bunch of red roses. The thorns (刺) hurt her hand but she did not care about the pain. The leader observed her action as she told him her dream. "Alright, you dance and I will give you my conclusion." But half way through the dance he stopped her and said, "I'm sorry you're not good enough!" On hearing this Lisa ran as fast as her legs could carry her and was ashamed. She gave up her dream.Many years later, she heard that the same ballet troupe was performing in her town again. Bitter memories of the leader's crude words came flooding back to her. This time she was determined to find out why the leader had told her she was not good enough. This was his reply, "I tell this to every student." She angrily shot back, "You've ruined my life! Then she got a further shock, "I remember your gift of roses and how the thorns(刺)had hurt your fingers but you carried on bravery. If you only had treated ballet like that and did not give up so easily; therefore, you still deserve my conclusion! "88.What is Lisa’s dream?89.How did Lisa feel after seeing the ballet troupe’s poster?90.Why did Lisa hid in the dressing room?91.Lisa didn’t try to find out why the leader told her she was not good enough at the moment, didshe?92.What king of girl do you think Lisa is?93.How do you understand the last sentence of the story?88.What is Lisa’s dream?【参考答案】Her dream is to be a ballerina(芭蕾舞女演员).【思路解析】本小题为细节题目，由第一段“She has read dozens of books on how to be a ballerina(芭蕾舞女演员)”.可知。

2018-2019学年第一学期文来初三10月月考卷Part 2 Phonetics, Grammar and Vocabulary(第二部分语音、语法和词汇)Ⅱ. Choose the best answer（选择最恰当的答案）（共20分）26.Which of the following underlined parts is different in pronunciation others?A. The gate is too narrow_ for a car to get through.B. A row of children are standing in front of the chairs.C. The facts allows no other explanation.D. You can borrow money from the bank to buy your new house.答案 C答案解析: 由音标可知，C 发的音是/au/ 其他的发音与其不同。

27.One should have pity on the beggar in the street and try to help him.A. aB. anC. theD.／答案: D答案解析: 本题考察固定短语和固定搭配，Have pity on sth. 所以答案选择D28.Street cleaners set off for work _the early morning evey day and bring us a clean city.A. atB. onC. inD. with答案 C答案解析: 考察介词短语的用法，In 具体到时间段，On 具体到某一天，At 具体到时间点，所以答案选择C 具体到上午的时间段。

29.They speak in a humorous way and make jokes_each other whenever they meet.A. withB. onC. ofD. about答案: D答案解析: 考察固定短语和固定搭配, Make jokes about sb, 所以答案选择D30. I agree with most of what you said, but I don't agree with_.A. somethingB. anythingC. nothingD. everything答案 D答案解析考察不定代词的用法和结合语境进行分析的能力，本句话的意思是我对你所说的话大部分都同意，但是不是每件事情都同意，所以答案选择D31.The famous _building in Pudong New District was built in 1999.A. 88-storeys-highB. 88-storey-highC. 88 storeys highD. 88storey high答案: D答案解析: 考察连字符的用法，加连字符不加S ，所以答案选择B32. The twin brothers seemed_and they produced beautiful folk art and captivating music.A. gentlyB. livelyC. softlyD. seriously答案 B答案解析: 考察系动词后面加形容词以及形容词和副词辨析, Seem 后面加形容词，只有B 选项是形容词，结合语境分析可知，选择B。

上海市市十中学2018学年第一学期10月月考卷初三年级英语试卷（总分：100分，时间：40分钟）Part 2 Vocabulary and Grammar（第二部分词汇和语法）I. Choose the best answer (选择最恰当的答案) 20%( ) 1.There is a round table in the middle of the room. Which of the following is correct for the underlined word in the sentence?A./rθʊnd/B./r u:nd/C./raʊnd/D./rɑ:nd/【答案】C【考点】音标【解析】round音标为 [raʊnd]( ) 2.Every day my mother prepares dinner for the family by ____.A. sheB. heC. hersD. herself【答案】D【考点】固定搭配【解析】by herself独自( ) 3.___ my opinion, this film is not worth watching twice.A. AtB. InC. OnD. From【答案】B【考点】固定搭配【解析】in one’s opinion 在某人看来( ) 4.It was reported that an earthquake happened ____ midnight on April 16 in Japan.A. atB. onC. inD. to【答案】A【考点】固定搭配【解析】at midnight 在午夜( ) 5.We held a graduation party yesterday in memory of the ___ years we had spent together.A. fourthB. four’sC. fourD. fourths【答案】C【考点】句意理解【解析】昨天我们举办了一个毕业晚会来纪念我们一起度过的四年。

上海市2018-2019学年上学期九年级10月月考英语试题分类汇编词汇运用2018-2019学年上海市新华初级中学初三上学期10月月考试卷Ⅳ. Complete the sentences with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子。

每空格限填一词）（共8分）48. We have already got one hundred seats, but we still need another ________. (twelfth)【参考答案】twelve【思路解析】another+数字表示“又一再一”的意思。

49. “New Era, _______ future” is the slogan of the first China International Import Expo. (share)【参考答案】shared【思路解析】shared adj. 共享的shared future为共享未来的意思。

50. The post office is ______ opposite the town hall and you won’t miss it. (direction)【参考答案】directly【思路解析】directly adv. 修饰the post office is opposite the town。

51.After the use of electric light in our daily life, nights became longer and _______.(noise)【参考答案】noisier【思路解析】结合句意填形容词比较级，noise形容词为noisy变比较级去y+ier。

52. They were frightened when a huge balloon flew past the air force ______. (basic)【参考答案】base【思路解析】考查形容词变名词，basic为adj. 基础的，the air force base空军基地。

2018学年初三第二次阶段反馈（九年级数学）一、选择题1.在Rt ABC 中90B ∠= ，则AB BC 等于（）A.tan A B.cot A C.sin A D.cos A2.已知D 、E 分别是ABC 的AB 、AC 上一点，//DE BC ，且:1:3ADE BCE S S = ，则AD DB =（）A.14 B.12 C.1 D.333.在A 处观察B 处时的仰角为36°，则在B 处观察A 处时的俯角为（）A.36° B.54° C.126° D.144°4.若2,3a b c a b c +=-= ，而且0c≠ ，则a 与b 是（）A.a 与b 是相等向量 B.a 与b 是平行向量C.a 与b 方向相同，长度不等 D.a 与b 方向相反，长度相等5.已知点()()1122,,,x y x y 同在抛物线21y x =-上，下列说法中正确的是（）A.若12y y =，则12x x = B.若12x x =-，则12y y =-C.若120x x <<，则12y y > D.若120x x <<，则12y y > 6.如图，四边形ABCD 是正方形，E 是CD 边的中点，P 是BC 边上的一动点，下列条件中，不与ECP 相似的是（）A.BP PC =B.90APE ∠=C.APB EPC ∠=∠D.2BP PC=二、填空题7.若两个相似三角形的周长之比等于4:9，则它们的面积之比等于____________．8.已知ABC 与DEF 相似，若ABC 的三边分别为5,7,8，DEF 的最长边与最短边之差为6，则DEFC = ____________．9.已知斜坡的坡度为1:2.4，若斜坡长为78米，则此斜坡的高为____________．10.已知抛物线21y ax x =+-的对称轴在y 轴的右边，则这个抛物线的开口方向____________．11.如图，123////l l l ，2,5,10AB AC DF ===，则DE =____________．12.若二次函数23y xx k =-+的图像与x 轴有公共点，则实数k 的取值范围是____________．13.在ABC 中，D 为BC 上的一点，若,CAD B ∠=∠5,9BD BC ==，则AC =____________．14.如图，在Rt ABC 中，90ACB ∠= ，CD AB ⊥于点D ，若1,4AD BD ==，则AC =____________．15.如图，在ABC 中，中线CD 、BE 、AF 交于点G ，且,BA a BC b == ，则GF = ____________．16.在梯形ABCD 中，//AB DC ，5AB =cm ，3DC =cm ，E 为DA的黄金分割点，//EF AB ，EF =____________．17.已知一次函数()0y kx b k =+≠的函数图像与x 轴交于点()1,0A -，且坐标平面内有一点()3,3B ，O 为坐标原点，则sin BAO ∠=____________．18.如图，在Rt ABC 中，90ACB ∠=，CD 为AB 边上的中线，将ACD 沿CD 翻折到ECD 的位置，若CE AB ⊥，则AC AB =____________．三、简答题19.计算：()2013sin 602cos 45tan 603π-⎛⎫-+--- ⎪⎝⎭ 20.如图，已知点E 在平行四边形ABCD 的边AD 上，3AE ED =，延长CE 到点F ，使EF CE =，设,BA a BC b== （1）试用,a b 表示C E ；（2）试用,a b 表示AF21.把二次函数245y x x =---这个图像上下平移，使其顶点恰好落在正比例函数y x =-的图像上，求平移后二次函数的解析式22.如图，某小区的两幢10层住宅楼，由地面向上依次为第一层、第二层…第十层，每层的高度为3m ，两楼间的距离30AC =m ，现需了解在某一时间段内，甲楼对乙楼的采光的影响情况，假设某一时刻甲楼楼顶B 落在乙楼上的影子长EC h =，太阳光线与水平线的夹角为α（1）用含α的式子表示h ；（2）当30α= 时，甲楼楼顶B 的影子落在乙楼的第几层，从此时算起，若α每小时增加10°，约几小时后，甲楼的影子刚好不影响乙楼采光？（3 1.73≈）23.如图，在平行四边形ABCD 中，AC CD =，若点E 、F 分别为边BC 、CD 上的两点，且EAF CAD∠=∠（1）求证：ADF ∽ACE（2）求证：AE EF=24.已知，二次函数2y ax bx c =++的图像经过点()()()3,0,1,0,0,3A B C -（1）求此函数的解析式，并写出其顶点坐标；（2）在线段AC 上是否存在点P （不含A 、C 两点），使ABP ∽ABC ？若存在，请求出点P 的坐标；若不存在，请说明理由25.如图，在梯形ABCD 中，4//,2,4,tan ,903AB CD AB AD C ADC DAB ===∠=∠= ，P 是腰BC 上一个动点（不含点B 、C ），作PQ AP ⊥交CD 于点Q （如图1）求：（1）BC 的长和梯形ABCD 的面积；（2）当PQ DQ =时，求BP 的长；（如图2）（3）设,BP x CQ y ==，试求出y 关于x 的函数解析式，并写出定义域。

2018-2019学年第一学期初三年级10月月考英语试题Part 1 ListeningPart 2 Phonetics, Grammar and VocabularyII. Choose the best answer.26. The teacher is very happy because my answer is correct. Which of the following is correct for the underlined word?A. /kəˈrikt/B. /kəˈrekt/C. /kəuˈrekt/D. /kəuˈrikt/27. The night scene of the Bund of Shanghai is beautiful and attractive on _______ night of ________ National Day?A. a, theB. /, theC. the, /D. the, a28. Nowadays some students choose online courses and study by ________ at home.A. theirsB. himselfC. themD. themselves29. ________ Kate ________ her cousin has been to Russia, but both of them have known the country very well.A. Either, orB. Neither, norC. Both, andD. Not only, but also30. About _______ the students of their grade went to the Science and Technology Museum last Saturday.A. hundreds ofB. two hundredC. two hundred ofD. two hundreds31. The sixth soldier waiter for _______ hour and then climbed out to open the great door.A. otherB. othersC. the otherD. another32. The teacher said my composition was quite good _________ a few spelling mistakes.A. besidesB. besideC. exceptD. except for33. --Where is my coat? Have you seen it?--It _______ there behind the door. Can you see it?A. is hungB. is hangingC. hangedD. has hanged34. The student is afraid _________ English with foreigners.A. to practice to speakB. practicing speakingC. of practicing speakingD. of practicing to speak35. The girl student got angry because they were ________ her.A. playing a trick onB. playing trick toC. playing a joke withD. making a trick on36. --Do you know _______ cormorants can stay under water?--For up to two minutes.A. how many timesB. how soonC. how longD. how often37. Listening to music and doing exercise _________ relaxed after a day’s work and study.A. enables us feelB. enable us feelC. enable us to feelD. enables us to feel38. QQ as well as WeChat ________ an important part in our daily communication.A. is playingB. are playingC. have playedD. play39. China International Import Expo ________ in Shanghai from November 5 to 10, 2018.A. will holdB. will be taken placeC. will be heldD. will held40. Mother has promised that she ________ an IPad Mini for her daughter if her daughter goes to the key senior high school.A. will buyB. would buyC. boughtD. has bought41. ________ useful dictionary it is! I often look up new words in it when I am reading books.A. WhatB. What aC. What anD. How42. Early in the morning Damin set off on his bamboo raft with his birds. The underlined part means “___________”.A. set awayB. set aboutC. startedD. began43. The heavy rain made the tourists _______ at the hotel all day with nothing to do.A. to stayB. stayingC. stayedD. stay44. --I _______ a rainbow in the sun.--Really? Do you know how many colours ________ in the rainbow?A. just have seen, there areB. have just seen, are thereC. just saw, there areD. have just seen, there are45. --Would you mind my opening the window?--___________.A. Of course. Please go ahead.B. Certainly not. Please go aheadC. Never mindD. No, I feel so coldIII. Complete the following passage with the words or phrase in the box. Each can only be used once.Tea is the national drink in China and serves as an important part of Chinese history and culture. Tea has played an important role in Chinese life since ancient times. Chinese Tea has existed more than 5000 thousand years. China was the first country to __46__ the tea in the world. Traditionally, drinking tea was the best way for learners to inspire themselves. Drinking tea could judge a person’s character and level of moral and emphasis(强调) the __47__ of objective environment and inner heart.China is the homeland of tea. And human cultivation(培植) of tea plants dates back two thousand years. Tea from China, along with her __48__ and porcelain(瓷器), began to be known in the world more than a thousand years ago and has always been an important Chinese export.At present more than forty countries in the world grow tea with Asian countries producing 90% of the world’s total output. The habit of tea drinking spread to Japan in the 6th century, but it was not introduced to Europe and America __49__ the 17th and 18th centuries. Now the number of tea drinkers in the world is still on the increase.Tea in China is as important as coffee in the western countries. Most Chinese enjoy drinking tea. It does good to people’s healthy. As we all know tea has a special taste. It can clear the bowels(肠胃), Moisten mouth(滋润口腔) and so on. There are various kinds of tea such as Tieh-Kuan-Yin, Pu-erh. Some is cheap __50__ some is expensive.China is a country with a time-honored civilization and a land of ceremony and manners. Whenever guests visit, it is necessary to make and serve tea to them. Before serving tea, you may ask them for their right choices as to what kind of tea they enjoy and serve them the tea in the most suitable teacups. Usually, if the tea is made in a teacup, boiling water should be added after half of the cup has been consumed, and thus the cup is kept __51__ so that the tea remains pleasantly warm throughout the entire course of tea-drinking.Tea has become one of Chinese specific drinks in the world. A large number of teas are exported to the foreign countries. Tea shops and Tea houses in the street are __52__ found in China. Chinese tea culture and arts attracts a lot of people.Today, Chinese tea has spread every corner of China from academic research to daily life. Chinese traditional culture to a most degree is __53__ connected with Chinese tea, Chinese tea also makes a great contribution to the development of Chinese culture.IV. Complete the sentences with the given words in their proper forms.54. On the Double _______ Festival, people usually climb mountains. (nine)55. We are proud of Wendy because she is very ________ in winning the first prize. (succeed)56. They said that it was their duty to train up these children to be good ________. (city)57. All of the tourists are amazed at the ________ of the Oriental Pearl TV Tower. (high)58. The Greeks pretended to sail away, and the _______ pulled the horse into their city as a victory trophy. (Troy)59. He is planning to go for a holiday, perhaps to _________ or somewhere else. (Greek)60. Without her timely help, I was _______ to work out the difficult problem yesterday. (able)61. Are you sure that the door and windows are locked ________? (secure)V. Complete the following sentences as required62. Nowadays few young people are interested in traditional fishing skills. (改为反义疑问句)Nowadays few young people are interested in traditional fishing skills, ________ ________63. It is fun to ride a bike on a sunny day like this. (改为感叹句)________ ________ it is to ride a bike on a sunny day like this!64. I shall leave the restaurant if the waitress doesn’t come soon. (改为句意相同句)I shall leave the restaurant _________ the waitress _________ soon.65. The Greeks managed to capture the city by a trick at last. (改为句意相同句)The Greek ________ ________ capturing the city by a trick at last.66. Mr. Wang teaches us chemistry this term in our school. (改被动语态)Chemistry is ________ ________ us by Mr. Wang this term in our school.67. Can anyone answer the question? The maths teacher wanted to know. (合并为一句)The maths teacher wanted to know _______ anyone _______ answer the question.68. perhaps, fishermen, using, there, cormorants, more, will be, no, in the future (连词成句)_______________________________________________________________Part 3 Reading and WritingVI. Reading comprehensionA. Choose the best answersIt is exciting to visit different places. As you travel, you will see typical beautiful scenery of the region. Besides, you can meet and make friends with people of different colors and races. You can get to know the customs and living habits of the local people. Today people are so fond of traveling that tourism has become one of the fastest growing industries in most countries.The main reason why people travel is, perhaps for pleasure. For instance, having worked hard throughout the weekdays, people will find a weekend trip to the nearby mountains or beaches to have a real relaxation. For another example, spending an annual(年度的) holiday traveling abroad is an especially satisfying experience for those who do not have much of an opportunity to be away from their homelands. When people return from their travel, they will generally feel fresh and energetic, ready to work harder.Traveling is also one of the best means for learning. You may have read or heard about something but you can never get an accurate picture of it until you see it for yourself. Seeing is believing. Furthermore, ifyou are a careful observer, you can learn much during your travel about the geography, biology and history of the places you visit. No matter how well educated you are, there is always a lot for you to learn through traveling. The knowledge acquired from travel, as you will have found later in your life, is no less valuable than that from any influential(有影响的) reference book.Traveling is one of the most important activities and people have been interested in it for many years. Modern traffic develops fast, so traveling to different places has become much easier than before. Staying healthy while travelling can make your trip happier. But do you know how to keep healthy during a trip?I’m sure you’ve asked this when traveling, “Can I drink the tap water?” It is easy to get confused about where it’s safe to drink and where it’s not, especially if you’re planning a multi-destination trip. Some countries like India and Mexico are well known for unsafe tap water but where else is it a health risk?If you want a quick reference for where on the earth the water is safe, we can get a helpful graph(图表). It is created by Just the Flight. All of the information about water safety is based on data from the CDC. The graph also shows pricing for bottled water and beer for each country as well!Have plans to travel to a place where the tap water is deemed(认定的) unsafe? Remember to skip ice in your drinks and avoid uncooked fruit and vegetables unless they’ve been peeled(削皮). Make sure to use bottled water when brushing your teeth as well.Please know that not all of the countries listed on the graph have dirty or polluted water. I know from personal experience: tap water may be safe at different elevations(海拔) and in different areas within a country shown as unsafe on the graph. Finally, further research is required. However, if you fall short of that, you’d better follow the advice on the graph to avoid an uncomfortable case of traveler’s illness. It’s definitely better to be safe than sorry! Be sure not to eat dirty food or bad fruit. Have enough time to take a rest during your trip.69. In the sentence “you can meet and make frie nds with people of different colors and races.” The underlined word “races” refers to _________.A. matchesB. placesC. nationsD. competitions70. The main reason why people like travelling is ________.A. only for pleasure for themselves and making friends with different people.B. not only for pleasure but also for learning and gaining knowledge of other countries.C. not only for pleasure for themselves but also for enjoying local food.D. only for having a real relaxation and seeing typical beautiful scenery.71. What makes travelling to different places become much easier than before?A. The world becoming smallerB. The fast development of modern trafficC. More and more planes trains and taxisD. People having more money72. Which of the following is right for the last three paragraph?A. Drinking Tap Water is Good for Our Health.B. How Can We Get Tap Water?C. Where on the Earth can You Drink Safe Tap Water?D. It is of great help when traveling.73. What can we learn from the graph?A. It only contains the information about water safety.B. It was created by the CDC.C. It also shows pricing for some kinds of wine.D. It is of great help when traveling.74. The passage is most likely to be found in _________.A. a tourist magazineB. an academic essayC. a news reportD. a short-story collectionB. Choose the words or expressions and complete the passageWhy is setting goals important? Because goals can help you do, be and experience everything you want in life. Instead of just letting life happen to you, goals allow you to make your life happen.Successful people __75__ how their life should be and set lots of goals. By setting goals you are taking control of your life. It's like having a map to show you where you want to go. Think of it in this way. There are two drivers. One has a destination in mind (her goal) which can be found on a map. She can drive straight there without any __76__ time or wrong turns. The other driver has no goal or destination or map. She starts off at the same time from the same place as the first driver, but she drivers aimlessly around, never getting anywhere, just using up gas. Which driver do you want to be?Winners in life set goals and follow through on them. They decide what they want in life and then get there by making plans and setting goals. __77__ people just let life happen by accident. Goals aren’t difficult to set--and they aren’t difficult to reac h. It’s up to you to find out what your goals really are. You are the one who must __78__ what to achieve and in what direction to aim your life.Research tells us that when we write a goal down, we are more likely to achieve it. Written goals can be __79__ regularly, and have more power. Like a contract (合同) with yourself, they are harder to neglect or forget. Also when you write your goals in a particular way you are able to make yourself continuously __80__ situations that will bring you nearer to your goal.75. A. imagine B. discuss C. experience D. show76. A. free B. dull C. fixed D. wasted77. A. Lucky B. Young C. Ordinary D. Unsuccessful78. A. practice B. change C. admit D. decide79. A. improved B. reviewed C. set D. reached80. A. aware of B. worried about C. familiar with D. accustomed toC. Read the passage and fill in the blanks with proper words.There is a famous saying “Time and tide wait for no man.” What is time? Is it a thing to be saved or spent or wasted, like money? Or is it something we have no control over it, like the weather? Is it the same all over the world? That’s an easy question, you say. Wherever you go, a minute is 60 seconds, an hour is60 minutes, a day is 24 hours, and so forth. But in America, time is more than that. Americans see time asa valuable resource. Maybe that’s why they like the expression, “Time is money.”Because Americans believe time is a limited resource, they try to keep and m__81__ it. People in the US often attend meetings or read books on time management. It seems that they all want to organize their time better. People try their best to press more life out of their time.To Americans, being on time is a way of showing respect for other people’s time. Being more than 10 minutes late usually calls for an apology and an e__82__. People who are running late often call ahead to let others know that they can’t be on time. Of course, the less formal(正式的) the situation is, the less important it is to be exactly on time. At informal get-togethers, for example, people often arrive as much as 30 minutes late. But they usually don’t try that at work.American lifestyles show how much people respect the time of others. When people plan an event, they often set the time days or weeks before it. Once the time is f__83__, it is almost impossible to change it. If people want to come to your house for a friendly visit, they will usually call first to make sure it is convenient. Only very close friends will just “drop by” unannounced. Also, people s__84__ call others late at night for fear they might be in bed. The time may be different, but most people think twice about calling after 10:00 p.m..Even Americans would agree that no one can master time. Time, like money, slips all too easilyt__85__ our finger. And time, like the w eather, is very hard to predict. However, time is one of like’s most valuable gifts.In fact, time is more valuable than money. Why? Because when money is spent, we can earn it back. H__86__, when time is lost, it will never return. This is the reason why we must value time.The time we have is limited. Every second is precious. We should make full use of our time. But there are a lot of people who do not know the importance of time. They kill away their time chatting, smoking, drinking or gambling. They do not realize that wasting time is s__87__ wasting their valuable life. So we should get into the good habit of saving time. Do not leave what can be done today until tomorrow. Laziness will not only bring us failure but also lead us to the road of poverty(贫困).D. Answer the questions.Tropical rain forests grow in warm, wet areas. With so much rain the soil in rain forests is very dark and rich for plants to grow. More than half of the tropical plants in the world grow in rain forest. Thousands of animals live in them, too.More than 50,000,000 people live in the rainforests of the world and most of them do not hurt the forest they live in. They eat the fruits that grow on the forest trees, but they do not cut them down. They kill some animals to eat, but they do not destroy them. In 1900, there were 1,000,000 forest people in the Amazon forest. In 1980, there were only 200,000.The Yanmomami(亚诺玛米人) live along the rivers of the rainforest in the north of Brazil. They have lived in the forest for about 10,000 years and they use more than 2,000 different plants for food. But in the later 1950s some strangers came and began looking for gold. They cut down the forest to make roads. They made more than a hundred airports. The Yanimami people lost land and food. Many died because new diseases came to the forest with the strangers. The Yanimami people tried to save their forest, because it was their home. But the people who wanted gold were stronger.Many forest people try to save their forests. Chico Mendes was famous in Brazil because he wanted to keep the forest for his people. “I want the Amazon forest to help all of us –forest people, Brazil, and all the earth,” he said. A few months later, in December 1988, people who wanted to cut down the forest killed Chico Mendes.In Borneo, people were cutting down the forest of the Penan people to sell the wood. The Penan people tried to save their rainforest. They made blockades(堵塞) across the roads into the forest. In 1987 they closed fifteen roads for eight months. No one cut down any trees during that time. In Panama, the Kuna people saved their forest. They made a forest park which tourists pay to visit. The Gavious people of Brazil use the forest, but they protect it as well. They find and sell the Brazil nuts which grow on the forest trees.88. Most people do not hurt the forests they live in, do they?89. How many people left the Amazon forest from 1900 to 1980?90. What happened to the Yanimami people when new diseases came with the strangers?91. Why did Chico Mendes become famous in Brazil?92. How did the Penan people try to save their rainforest?93. Whose way of protecting the forest do you prefer, the Kuna peoploe’s or the Gavious people’s? Why?VII. WritingWrite at least 60 words about the topic “My favorite festival”（以“我最喜欢的节日”为题写一篇不少于60~80词的短文，标点符号不占格。

上海市九年级上学期数学10月月考试卷B卷一、单选题 (共10题；共20分)1. （2分） (2018九上·高碑店月考) 下列方程中，无论a取何值时，总是关于x的一元二次方程的是（）A .B .C .D .2. （2分）方程的根是（）A .B .C .D .3. （2分）下列关于二次函数的说法错误的是（）A . 抛物线y=﹣2x2+3x+1的对称轴是直线 ,B . 抛物线y=x2﹣2x﹣3，点A（3，0）不在它的图象上C . 二次函数y=（x+2）2﹣2的顶点坐标是（﹣2，﹣2）D . 函数y=2x2+4x﹣3的图象的最低点在（﹣1，﹣5）4. （2分） (2017九上·邓州期中) 如果关于x的一元二次方 +1=0有两个不相等的实数根，那么k的取值范围是（）A . - ≤k＜且k≠0B . k＜且k≠0C . - ≤k＜D . k＜5. （2分）(2019·枣庄模拟) 如图，二次函数y=ax2+bx+c的图象经过点A（-1，0）、点B（3，0）、点C（4，1），若点D(x2 ， y2）是抛物线上任意一点，有下列结论：①二次函数y=ax2+bx+c的最小值为-4a；②若-1≤x2≤4，则0≤y2≤5a；③若y2>y1 ，则x2>4；④一元二次方程cx2+bx+a=0的两个根为-1和其中正确结论的个数是（）A . 1B . 2C . 3D . 46. （2分） (2019九下·杭州期中) 关于的方程ax2+bx+c=2与方程(x+1)(x-3）=0的解相同，则a-b+c的值等（）A . -2B . 0C . 1D . 27. （2分）(2019·凤山模拟) 据统计，某省2015年的贫困人口约382万，截止2017年底，全省贫困人口约190万，设这两年全省贫困人口的年平均下降率为x，则下列方程正确的是（）A . 382(1﹣2x)＝190B . 382x2＝190C . 382(1﹣x)2＝190D . 382(1﹣x)+382(1﹣x)2＝1908. （2分） (2019九上·綦江期末) 已知二次函数 y=ax2+bx+c（a≠0）的图象如图，有下列 5 个结论：①4a+2b+c＞0；②abc＜0；③b＜a+c；④3b＞2c；⑤a+b＜m（am+b），（m≠1 的实数）；其中正确结论的个数为（）A . 2 个B . 3 个C . 4 个D . 5 个9. （2分）(2019·南宁模拟) 如图，某商标是由三个半径都为R的圆弧两两外切得到的图形，则三个切点间的弧所围成的阴影部分的面积是（）A . （﹣π）R2B . （ + π）R2C . （﹣π）R2D . （+π）R210. （2分）若一次函数y=ax+b的图象经过第一、二、三象限，则二次函数y=ax2+bx 的图象可能是下列中的（）A .B .C .D .二、填空题 (共6题；共6分)11. （1分）(2019·西岗模拟) 抛物线经过原点，那么该抛物线在对称轴左侧的部分是________的.（填“上升”或“下降”）12. （1分）一个两位数，十位上的数字比个位上的数字的平方少9.如果把十位上的数字与个位上的数字对调，得到的两位数比原来的两位数小27，则原来的两位数是________13. （1分） (2018九上·鼎城期中) 若关于x的一元二次方程x2﹣2x+k=0无实数根，则实数k的取值范围是________．14. （1分） (2019八下·鄞州期末) 若是一元二次方程的解，则代数式的值是________15. （1分）(2019·广西模拟) 如图，在扇形OAB中，∠AOB=60°，扇形半径为r，点C在弧AB上，CD⊥OA，垂足为D，当△OCD的面积最大时，弧AC的长为________16. （1分） (2017九上·哈尔滨月考) 抛物线y＝2x2﹣bx+3的对称轴是直线x＝1，则b的值为________．三、解答题 (共9题；共95分)17. （5分） (2018九上·宝应月考) 解方程：（1）（2）18. （5分）(2017·嘉祥模拟) 先化简，再求值（a﹣）（﹣1）÷ ，其中a，b分别为关于x的一元二次方程x2﹣x+1=0的两个根．19. （10分）(2019·文成模拟) 如图，▱ABCD的四个顶点都在小方格的顶点上，每个小正方形边长都是1，请画一个与▱ABCD的面积相等的特殊平行四边形，并且满足下列要求（1）在图甲中画一个矩形；（2）在图乙中画一个菱形.（注意：四边形的顶点均在方格的顶点上，四边形的边用实数表示，顶点写上字母）20. （10分） (2017九上·临颍期中) 某中学课外兴趣活动小组准备围建一个矩形苗圃园，其中一边靠墙，另外三边由长为30米的篱笆围成．已知墙长为18米（如图所示），设这个苗圃园垂直于墙的一边长为x米．（1）若苗圃园的面积为72平方米，求x；（2）若平行于墙的一边长不小于8米，这个苗圃园的面积有最大值和最小值吗？如果有，求出最大值和最小值；如果没有，请说明理由．21. （10分）(2019·浙江模拟) 已知关于x的一元二次方程x2－(m＋1)x＋ (m2＋1)＝0.（1）若该方程有实数根，求m的值.（2）对于函数y1＝x2－(m＋1)x＋ (m2＋1)，当x＞1时，y1随着x的增大而增大.①求m的范围.②若函数y2＝2x＋n与函数交于y轴上同一点，求n的最小值.22. （10分）(2019·紫金模拟) 某中学校开展了“献爱心”捐款活动。

2018年上海市初三数学上册10月六校联考试题(含答案)
2018届初三数学教学质量调研试卷
（满分150分，考试时间100分钟）
考生注意
1 本试卷含三个大题，共25题；
2 答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸、本试卷上答题一律无效；
3 除第一、二大题外，其余各题如无特别说明，都必须在答题纸的相应位置上写出证明或计算的主要步骤
一、选择题(本大题共6题，每题4分，满分24分)
【下列各题的四个选项中，有且只有一个选项是正确的，选择正确项的代号并填涂在答题纸的相应位置上】
1 同位素的半衰期（half－life）表示衰变一半样品所需的时间．镭－226的半衰期约为1600年，1600用科学记数法表示为（A）16×103；（B）016×104；（c）16×102；（D）160×10．
2 若点P（a，b）在第四象限，则点Q（，）在
（A）第一象限；（B）第二象限；（c）第三象限；（D）第四象限．
3 若两圆的直径分别是4和6，圆心距为2，则这两圆的位置关系是
（A）外离；（B）相交；（c）外切；（D）内切．
4 某外小组的同学们在社会实践活动中调查了20户家庭某月的用电量，如下表所示
用电量（度）120180160180200
户数23672
则这20户家庭该月用电量的众数和中位数分别是
（A）180，160；（B）160，180；（c）160，160；（D）180，。