(完整word版)上海民办上宝中学2017学年第一学期初二第一次阶段测试英语卷(无听力部分)
上海上宝中学2017学年第一学期初二第一次阶段性测试英语卷
Part II Vocabulary and Grammar
I. Choose the best answer:20’
26. Which of the underline parts has the different pronunciation from the others?
A business
B luckily
C assistant
D simple
27. It’s _________honor for every guest to be involved to ________dinner.
A. a, a B an,/ C an, the D /,/
28. There are various kinds of _________in this river, and I have caught three ______so far.
A. fish, fish B fishes, fishes C fish, fishes D fishes, fish
29. Mr. Bean as well as the other passengers ________quite angry ________the delay.
A. are, with B are, about C is, with D is, at
30. ------You are always full of _________. Can you tell me the secret?
------ Taking plenty of exercise every day.
A. energy B strength C force D power
31. The teacher who _______a class is a class teacher.
A. is in charge of B is in the charge of
C is responsibility for
D in charge of
32. Since everyone is here, let’s get down to business. What does the underlined part mean?
A. buying or selling goods B company
C matters that need to be dealt with
D trade
33. In the past few years, Dr. Sun __________great success in the field of science.
A. has achieved B achieved C had achieved D achieves
34. I remember ________him 200 Yuan last week, but he forgets ______the money to me.
A. lending, to return
B. to lend, to return
C. lending, returning
D. to lend, returning
35. You are sure to learn the subject well ________ you find the right way.
A. until
B. through
C.as long as
D. unless
36. _______, you need to give all you have and try your best.
A. Being a winner
B. To be a winter
C. Be a winner
D. Having been a winner
37. He likes pop music, so he _______go to the corner tomorrow night, but I’m not sure.
A. can
B. may
C. must
D. should
38. Sorry, madam. This kind of laptops _______ out. Look! Laptops of that kind also _________well.
A. have been sold, sell
B. sells, have been sold
C. have been sold, sold
D. have been sold ,sell
39. Parents often expect their children ________all the things that they couldn’t do in the past.
A. did
B. doing
C.to do
D.do
40. It’s time to __________these foolish ideas and become serious.
A. put away
B. put up
C. put up with
D. put out
41. My brother is going to Japan ________next May and he will stay there for _______.
A. some time, some times
B. sometime, some time
C. sometimes, some time D some times ,sometimes
42. ------ I think he is taking an active part in social work.
------ I agree with you _________.
A. in a way B on the way C by the way D in the way
43. which of the following sentence is correct ?
A. I think he shouldn’t give up
B. He hasn’t decided when he would fly to Beijing
C. I asked him when he had arrived
D. could you tell me which is the way to the hospital?
44. ------ Mrs Zhou, may I ask you some questions?
------ ________.
A. That’s all right
B. My pleasure
C. Go ahead
D. Sure, what’s it?
45. ----- we should try our best to plant more trees to beautify our environment.
----- _________.
A. I can’t agree more
B.I ’m glad to hear that
C. That’s OK
D. I’m afraid I can’t
II. Complete the following passage with the words or phrases in the box. Each word or phrase can only be used once.8’
A build-it-yourself solar still（蒸馏器）is one of the best ways to obtain drinking water in areas where the_____46___ is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it’s an excellent water collector. Unfortunately, you must carry the necessary eq uipment with you, since it’s all but ____47____ to find natural substitutes. The only ____48____required, though, are a 5＇ 5＇sheet of clear or slightly milky plastic, six feet of plastic tube, and a container— perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.
To ___49___a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catc her’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in the cup and the rest of the line runs up — and out — the side of the hole.
Don’t ___50______ to stop by Pacific Science Center’s Store while you are here to pick up a wonderful science activity or remember your visit. The store is located(位于) upstairs in Building
3 right next to the Laster Dome.
◆Hungry
Our ____51_______ will feed your mind but what about your body？Our caféoffers a complete menu of lunch and snack options, in addition to seasonals. The caféis located upstairs in Building 1 and is open daily until one hour Pacific Science Center closes.
◆Rental Information
Lockers are available to store any belongs during your visit. The lockers are located in Building 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to _____52______ at the Information Desk and Denny Way entrance. ID required.
◆Support Pacific Science Center
Since 1962 Pacific Science Center has been inspiring a passion(热情) for discovery and lifelong in science, math and technology. Today Pacific Science Center ______53______ more than 1.3 million people a year and beings inquiry based science education to classrooms and company events all over Washington State. It’s an amazing accomplishment and one we connect science without generous support from individuals, corporations, and other social organizations. Wish to find various ways you can support Pacific Science Center.
III. Complete the sentences with the given words in their proper forms(用括号中所给单词的适当形式填空，每空格填一词): 8’
54.Jonathan Chen, several__________teacher, has written a book on foreign history and
culture.(France)
55.I found listening to the same story over and over again __________ .(boring)
56.Henry was so excited when receiving the____________guitar as a gift, for it was his favourite
musical instrucment.(electricity)
57.China disputes its sea borders with several countries, most___________with Japan, Vietnam
and the Philippines.(beat)
58.He’d like to spend as much time as he can__________ideas with his parents.(change)
59.In comparison with absinthe, other drinks are like __________smoking a cigarette outside a
Metro station.(hurry)
60.The wonderful performance they put on last night were beyond his_________.(expect)
61.The mechanical___________of the words made other people think he was insane.(repeat)
IV. Rewrite the following sentences as required(根据要求改写句子，每空限填一词): 14’62.It sounds like “Yes”.(对划线部分提问)
_________did it sound __________?
63.There were few computers in China in the 1960s.(改为反意疑问句)
There were few computers in China in the 1960s,________ ________?
64.I enjoyed my study trip to France.(改为感叹句)
____________ _____________my trip to France was!
65.Saint Claus hid the presents in the long stocking on Christmas Eve(改为被动语态)
The presents___________ ____________in the long stocking on Christmas Eve.
66.Both he and she enjoy reading science fiction.(改为并列句)
He_________reading science fiction and so_________she.
67.Mary didn’t watch TV last night. Her sister didn’t,either.(保持原句意思)I bought this
English-Chinese dictionary two weeks ago.(保持原句意思)
__________of the two sisters ____________TV last night..
68.What, only, about, you, in, can, this, talking, foreigners, understand, way, are (连词成句)
___________________________________________________________.
VI. Complete the sentence with the Chinese given.(5’)
69.My mother____________________(接我放学)，and then_______________________.(回到
办公室继续工作)
70.Sandy_________________(严重受伤)while____________________________.(和其他表演
者一起练习骑独轮车)
71._____________________________________________________.(不幸的是，他这次物理和
地理考试没有及格)
72.It ______________________to make___________________________.(使我们的声音上升
来表示礼貌是一个合适的方法)
73.This _________________________________________.(这名电工诚实且正确地回答了这
份问卷中所有的问题)
Part 3 Reading and writing(47’)
VII. Reading comprehension
LIPITOR
ABOUT LIPITOR
Lipitor is a prescription medicine. Along with diet and exercise, it lowers "bad" cholesterol(胆固醇) in your blood. It can also raise "good" cholesterol. Lipitor can lower the risk of heart attack in patients with several common risk factors ,including family history of early heart disease, high blood pressure, age and smoking.
WHO IS LIPITOR FOR ？
Who can take LIPITOR:
People who cannot lower their cholesterol enough with diet and exercise. Adults and children over 10.
Who should NOT take LIPITOR:
Women who are pregnant, may be pregnant, or may become pregnant. Lipitor may harm your unborn baby. women who are breast-feeding. Lipitor can pass into your breast milk and may harm your baby. People with liver(肝脏) problems.
POSSIBLE SIDE EFFECTS OF LIPITOR
Serious side effects in a small number of people: Muscle(肌肉)problems that can lead to kidney(肾脏) problems, including kidney failure. Liver problems. Your doctor may do blood tests to check your liver before you start Lipitor and while you are taking it. Call your doctor right away if you have: Unexplained muscle pain or weakness, especially if you have a fever or feel
very tired. Swelling of the lace, lips, tongue, and/or throat that may cause difficulty in breathing or swallowing. Stomach pain. Some common side effects of LIPITOR are: Muscle pain Upset stomach Changes in some blood tests
HOW TO TAKE LIPITOR DO:
Take Lipitor as prescribed by your doctor. Try to eat heart-healthy food while you take Lipitor. Take Lipitor at any time of day, with or without food. If you miss a dose(一剂),take it as soon as you remember. But if it has been more than 12hours since your missed dose, wait. Take the next dose at your regular time. Don’t: Do not change or stop your dose before talking to your doctor. Do not taking new medicines before talking to your doctor.
74.What is a major function of Lipitor?
A．To help quit smoking. B．To control blood pressure.
C．To improve unhealthy diet. D．To lower “bad” cholesterol.
75.Taking Lipitor is helpful for _________.
A．breast-feeding women B．women who are pregnant
C．adults having heart disease D．teenagers with liver problems
76.If it has been over 12 hours since you missed a dose, you should _________.
A．change the amount of your next dose
B．eat more when taking your next dose
C．have a dose as soon as you remember
D．take the next dose at your regular time
77.Which of the following is a common side effect of taking Lipitor?
A．Face swelling. B．Upset stomach.
C．Kidney failure. D．Muscle weakness.
78.What is the main purpose of the passage?
A.To teach patients ways for quick recovery.
B.To prevent a report on a scientific research.
C.To show the importance of a good lifestyle.
D.To give information about a kind of medicine.
79.when can you most probably find the passage?
A.In a dispensatory D. In a novel C. In a newspaper D. In a science fiction
Choose the words or expressions and complete the passage.(6’)
While high school does not generally encourage students to explore new aspects of life,college sets the stage for that exploration. I myself went through this___80____ process and found something that has changed my experience at college for the better:I discovered ASL-American Sign Language.
I never felt an urge to learn any sign language before.My entire family is hearing,and so are all my friends.The ___81___language were enough in all my interactions(交往).Little did I know that I would discover my love for ASL.
The story began during my first week at college. I watched as the ASL Club ___82___their translation of a song. Both the hand movements and the very __83____ of communicating without speaking attracted me. What I saw was completely unlike anything I had experienced in the past .This newness just left me wanting more.
After that, feeling the need to explore further, I decided to drop in on one of ASL club`s meetings. I only learned how to sign the alphabet that day. Yet instead of being discouraged by my __84____ progress,I was excited. I then made it a point to attend those meetings and learn all I could.
The following term, I registered for an ASL class. The professor was deaf and any talking was prohabited . I soon realized that the silence was not unpleasant. ___85___, if there had been any talking, it would have 59 us to learn less. Now, I appreciate the silence and the 60 way of communication it opens.
80.A. searching B. planning C. natural D. formal
81. A. official B. foreign C. body D. spoken
82.. A. recorded B. performed C. recited D. discussed
83. A. idea B. amount C. dream D. reason
84. A. slow B. steady C. normal D. obvious
85. https://www.360docs.net/doc/1f6614563.html,stly B.Thus C.Instead D.However
C read the passage and fill in the blanks with proper words.(14’)
I needed to buy a digital camera, one that was simply good at taking good snaps (快照), maybe occasionally for magazines. Being the cautious type, I fancied a reliable brand. So I went on the net, spent 15 minutes reading product r ___86_____on good websites, wrote down the names of three top recommendations and headed for my nearest big friendly camera store. There in the cupboard was one of the cameras on my list. And it was on special offer. Oh j oy. I pointed at it and asked an assistant, “Can I have one of those?” He looked perturbed (不安).“Do you want to try it first?" he said. It didn"t quite sound like a question. "Do I need to?" I r___87_____. "There"s nothing wrong with it?" This made him look a bit insulted and I started to feel bad. "No, no. But you should try it," he said encouragingly."
C__88____ it with the others. "
I looked across at the others: shelves of similar cameras placed along the wall, offering
a wide range of slightly different prices and discounts, with each company selling a range of
models based around the same basic box. With so many m__89_____ to choose from, it
seemed that I would have to spend hours weighing X against Y, always trying to take Z and possibly H into account at the same time. But when I had finished, I would still have only the same two certainties that I had entered the store with: first, soon after I carried my new
camera out of the shop, it would be w__90____ half what I paid for it; and second, my
wonderful camera would very quickly be replaced by a new model.
But something in the human soul whispers that you can beat these traps by making the right choice, the clever choice, the wise choice. In the end, I agreed to try the model I had chosen. The assistant seemed a sincere man. So I let him take out my chosen camera from the cupboard, show how it took excellent pictures of my fellow shoppers... and when he
started to i____91____ the special features, I interrupted to ask whether I needed to buy a carry-case and a memory card as well.
Why do we think that new options (选择) still offer us anything new? Perhaps it is because they offer an opportunity to a__92_____ facing the fact that our real choices in this culture are far more limited than we would like to imagine.
D answer the questions.(6’)
Secret Santas
On Christmas morning, Linda wakes up, and tries to imagine the wideeyed surprise of children in another household as they unwrap the presents she carefully chose for them. Linda has never met the ch ildren, but that’s all part of the joy of giving as secret Santas, she says.“It’s an amazing feeling to buy gifts on an anonymous (匿名的)basis，” says Linda. “It brings a whole new meaning to the holidays.”
Linda and Tony are an American couple living in Toronto, Canada, and Linda did charitable work as a member of the American Women’s Club of Toronto. As the name suggests, members are U．S. citizens living in Toronto, who join together for fellowship and community service.
To find her “adopted” family, Linda goes to the local schools and requests a wish list for a family that’s struggling to survive. Last year she helped a single mother with three children. The mother works as a cleaning lady in a nursing home.
“The list is always heartbreaking. They hav e an opportunity to ask for anything and do just the opposite, asking for basic clothes or simple toys，” she says. “We always buy the kids a new winter coat, hats, and gloves.” She also buys gifts for the parents.
Last year Linda asked the mother for a second wish list—one that didn’t include the basics. “Every child should have a Christmas that sticks with them for a lifetime.” She purchased iPods for the two older children and a video game system for the youngest.“I have learned a very valuable lesson in all of this，” says Linda. “Pay attention to what’s going on in your own backyard—no matter where you live.”
The joy of giving as secret Santas is much sweeter when the gift is anonymous.
93. Does Linda buy a new winter coat, hats, and gloves for the parents or gifts for the kids？
94．What reaction does Linda imagine the children will have?
95．Why did Linda join the American Women’s Club of Toronto?
96．Why did Linda ask for a second wish list？
97．What kind of people does “secret Santas” in the passage refer to？
98.What can you learn from the story?
VIII．Writing.(15’)
99. Write at least 60 words on the topic “The Day My Classmate Fell Ill”. The following points are only for reference. (以“我同学生病的日子”为题，写一篇不少于60字的短文。以下仅作参考)
1. Describe the illness
2. How did the classmates, teachers and I help him or her?
3. How did I feel about it?
注意：短文中不得出现任何人名、校名及其他相关信息，否则不予评分。
答案：单选：26-30 ABDDA 31-35 ACAAC
36-40BBDCA 41-45BADCA
五选四：46-49 DCBA 50-53 BCAD
词转：54.Frenchmen’s 55 boring 56electric 57 heatedly 58exchanging
59hurriedly 60 expectation 61repeatability
句转：62How heavy What like 63did they were there 64 are hung How enjoyable 65 were hidden 66whether many enjoys does 67 Neither watched
68 Only in this way can you understand what foreigners are talking about.
翻译：66. My mother collects me from school and then returns to her office and continue working.
67. Sandy got hurt seriously while practicing riding a uncycle with other performers.
68. Unluckily, he failed in the physics examination and geography examination this time.
69. It is a proper way to rise our voice to show politeness.
70.This electrician answered all questions in this questionnaire correctly and honestly.
阅读A篇：DCDBDA
B篇：ADBAAC
C篇：86. reviews 87. replied 88. compare 89.model
90. worth 91.introduce 92. Avoid
D篇：93. Neither.
94. The wide-aged surprise
95. Because she wanted to do fellowship and community service.
96. Because she wanted to give the children some other gifts rather than the basics
97. The kind of people that buy gifts on an onymbus basis.
98.略
上宝中学2016学年初三第一学期英语期中复习试卷(三)
2016学年第一学期初三英语期中复习卷（三） number_____________ name________________ sore _____________ 1.choices: 1.look! There is _________army in the square. They are standing _________line. A. a/in B an/in C a/on D an, on 2. Avatar is such _______wonderful science movie that I want to see it ______second time. A. a, a B a, the C /, the D. /,a 3. The news that they failed their driving test discouraged him, ________? A did they B didn’t they C did it D didn’t it 4. It’s raining hard outside. Mary will have no choice but __________until it stops. A. waiting B waits C waited D to wait 5. That pile on the left are the ones that have been ______ for the library.
A. picked up B picked out C picked off D picked on 6. personally, I am extremely satisfied with his appearance. Which word has the closest meaning of the underline word? A. very B also C often D too 7. Reading some books _________good for all of us, ____________? A. are, aren’t they B is, isn’t it C have, don’t they D has, doesn’t it 8. Our classroom is made _____________every day. A. to clean B to cleaning C clean D cleaned 9. Mary had to explain it again ______________. A. making her understand B to make herself understand C. making herself understand D to make herself understood
2020-2021上海民办上宝中学小学数学小升初模拟试卷(含答案)
2020-2021上海民办上宝中学小学数学小升初模拟试卷(含答案) 一、选择题 1．7.49亿这个数中的“4”表示（） A. 4亿 B. 4000万 C. 400000 D. 400万2．口袋里有3个红球和5个白球，球除颜色外完全相同。从中任意摸出一个球，摸出红球的可能性是（）. A. B. C. D. 3．要想描述六年级（3）班同学身高分组的分布情况，应选用（）合适。 A. 条形统计图 B. 折线统计图 C. 扇形统计图 D. 以上都行 4．一个零件长4毫米，画在图上长12厘米。这幅图的比例尺是（）。 A. 1：30 B. 1：3 C. 30：1 D. 3：1 5．一项工程，甲独立完成要30天，乙独立完成要20天，现两队合作，几天后完成了这项 工程的。如果按这样的效率，算式（）可以表示求剩下的工程需要多少天完成。 A. ÷（ + ） B. （1- ）÷（ + ） C. 1÷（ + ） D. （1- ）÷（ - ） 6．一套科技读物原价90元，商场庆“五一”搞促销打七五折，算式（）表示求现价。A. 90×75% B. 90×（1-75%） C. 90÷75% D. 90÷（1-75%）7．长沙地铁1号线和地铁2号线总里程约为50千米，2019年5月随着地铁4号线的开通，长沙地铁总里程增加了67%，地铁4号线开通后，长沙地铁总里程约为（） A. 67千米 B. 117.1千米 C. 33.5千米 D. 83.5千米8．一块玉璧的形状是一个圆环，外圆半径是3cm，内圆半径是1cm，这个圆环的面积是（）（π取3.14） A. 3.14cm2 B. 12.56cm2 C. 25.12cm2 D. 28.26cm2 9．甲车间的出勤率比乙车间高，以下说法正确的是（） A. 甲车间的总人数一定比乙车间多 B. 甲车间的出勤人数一定比乙车间多 C. 甲车间的未出勤人数一定比乙车间少 D. 以上说法都不对 10．小明五次数学考试成绩如下表，第五次考试成绩是（）分。 次别第一次第二次第三次第四次第五次平均分 成绩（分）8896939993 11．有一张方格纸，每个小方格的边长是1厘米，上面堆叠有棱长1厘米的小正方体（如左下图），小正方体A的位置用（1，1，1）表示，小正方体B的位置用（2，6，5）表示，那么小正方体 C的位置可以表示成（）。
上海市上宝中学数学圆 几何综合章末训练(Word版 含解析)
上海市上宝中学数学圆几何综合章末训练（Word版含解析） 一、初三数学圆易错题压轴题（难） 1．如图所示，CD为⊙O的直径，点B在⊙O上，连接BC、BD，过点B的切线AE与CD 的延长线交于点A，OE//BD，交BC于点F，交AB于点E. （1）求证：∠E=∠C； （2）若⊙O的半径为3，AD=2，试求AE的长； （3）在（2）的条件下，求△ABC的面积. 【答案】（1）证明见解析；（2）10；（3）48 5 . 【解析】 试题分析：（1）连接OB，利用已知条件和切线的性质证明：OE∥BD，即可证明：∠E=∠C； （2）根据题意求出AB的长，然后根据平行线分线段定理，可求解； （3）根据相似三角形的面积比等于相似比的平方可求解. 试题解析：（1）如解图，连接OB， ∵CD为⊙O的直径， ∴∠CBD＝∠CBO＋∠OBD＝90°， ∵AB是⊙O的切线， ∴∠ABO＝∠ABD＋∠OBD＝90°， ∴∠ABD＝∠CBO. ∵OB、OC是⊙O的半径， ∴OB＝OC，∴∠C＝∠CBO. ∵OE∥BD，∴∠E＝∠ABD， ∴∠E＝∠C； （2）∵⊙O的半径为3，AD＝2， ∴AO＝5，∴AB＝4. ∵BD∥OE， ∴＝， ∴＝， ∴BE＝6，AE=6+4=10 （3）S △AOE==15，然后根据相似三角形面积比等于相似比的平方可得
S △ABC = S △AOE == 2．已知： 图1 图2 图3 （1）初步思考： 如图1， 在PCB ?中，已知2PB =，BC=4，N 为BC 上一点且1BN =，试说明： 1 2 PN PC = （2）问题提出： 如图2，已知正方形ABCD 的边长为4，圆B 的半径为2，点P 是圆B 上的一个动点，求 1 2 PD PC +的最小值． （3）推广运用： 如图3，已知菱形ABCD 的边长为4，∠B ﹦60°，圆B 的半径为2，点P 是圆B 上的一个动点，求1 2 PD PC -的最大值． 【答案】（1）详见解析；（2）5；（3）最大值37DG =【解析】 【分析】 （1）利用两边成比例，夹角相等，证明BPN ?∽BCP ?，得到PN BN PC BP =，即可得到结论成立； （2）在BC 上取一点G ，使得BG=1，由△PBG ∽△CBP ，得到1 2 PG PC =，当D 、P 、G 共线时，1 2 PD PC + 的值最小，即可得到答案； （3）在BC 上取一点G ，使得BG=1，作DF ⊥BC 于F ，与（2）同理得到1 2 PG PC =，当点P 在DG 的延长线上时，1 2 PD PC -的值最大，即可得到答案. 【详解】 （1）证明：∵2,1,4PB BN BC ===，
2017年全国高考理科数学试题及答案-全国卷1
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上海上宝中学2017学年第一学期初二第一次阶段性测试英语卷 Part II Vocabulary and Grammar I. Choose the best answer:20’ 26. Which of the underline parts has the different pronunciation from the others? A business B luckily C assistant D simple 27. It’s _________honor for every guest to be involved to ________dinner. A. a, a B an,/ C an, the D /,/ 28. There are various kinds of _________in this river, and I have caught three ______so far. A. fish, fish B fishes, fishes C fish, fishes D fishes, fish 29. Mr. Bean as well as the other passengers ________quite angry ________the delay. A. are, with B are, about C is, with D is, at 30. ------You are always full of _________. Can you tell me the secret? ------ Taking plenty of exercise every day. A. energy B strength C force D power 31. The teacher who _______a class is a class teacher. A. is in charge of B is in the charge of C is responsibility for D in charge of 32. Since everyone is here, let’s get down to business. What does the underlined part mean? A. buying or selling goods B company C matters that need to be dealt with D trade 33. In the past few years, Dr. Sun __________great success in the field of science. A. has achieved B achieved C had achieved D achieves 34. I remember ________him 200 Yuan last week, but he forgets ______the money to me. A. lending, to return B. to lend, to return C. lending, returning D. to lend, returning 35. You are sure to learn the subject well ________ you find the right way. A. until B. through C.as long as D. unless 36. _______, you need to give all you have and try your best. A. Being a winner B. To be a winter C. Be a winner D. Having been a winner 37. He likes pop music, so he _______go to the corner tomorrow night, but I’m not sure. A. can B. may C. must D. should 38. Sorry, madam. This kind of laptops _______ out. Look! Laptops of that kind also _________well. A. have been sold, sell B. sells, have been sold C. have been sold, sold D. have been sold ,sell 39. Parents often expect their children ________all the things that they couldn’t do in the past. A. did B. doing C.to do D.do 40. It’s time to __________these foolish ideas and become serious. A. put away B. put up C. put up with D. put out 41. My brother is going to Japan ________next May and he will stay there for _______. A. some time, some times B. sometime, some time C. sometimes, some time D some times ,sometimes
2020-2021上海民办上宝中学七年级数学上期末模拟试卷(含答案)
2020-2021上海民办上宝中学七年级数学上期末模拟试卷(含答案) 一、选择题 1．若x 是3-的相反数，5y =，则x y +的值为（ ） A ．8- B ．2 C ．8或2- D ．8-或2 2．将7760000用科学记数法表示为( ) A ．57.7610? B ．67.7610? C ．677.610? D ．77.7610? 3．实数a 、b 、c 在数轴上的位置如图所示，且a 与c 互为相反数，则下列式子中一定成立 的是（ ） A ．a+b+c>0 B ．|a+b| 2017年上海市高考数学试卷 一、填空题（本大题共12题，满分54分，第1～6题每题4分，第7～12题每题5分） 1.已知集合A={1，2，3，4}，集合B={3，4，5}，则A∩B= ． {3,4} 【解析】∵集合A={1，2，3，4}，集合B={3，4，5}，∴A∩B={3，4}． 2．（2017年上海）若排列数A m 6=6×5×4，则m= ． 2.3 【解析】∵排列数A m 6=6×5×…×(6-m+1)，∴6-m+1=4，即m=3. 3．（2017年上海）不等式x-1x ＞1的解集为 ． 3.(-∞，0) 【解析】由x-1x ＞1，得1-1x >1，则1 x <0，解得x<0，即原不等式的解集为(-∞，0). 4.（2017年上海）已知球的体积为36π，则该球主视图的面积等于 ． 4.9π 【解析】设球的半径为R ，则由球的体积为36π，可得4 3πR 3=36π，解得R=3.该球的主 视图是半径为3的圆，其面积为πR 2=9π． 5．（2017年上海）已知复数z 满足z+3 z =0，则|z|= ． 5. 3 【解析】由z+3 z =0，可得z 2+3=0，即z 2=-3，则z=±3i ，|z|= 3. 6．（2017年上海）设双曲线x 29-y 2 b 2=1（b ＞0）的焦点为F 1，F 2，P 为该双曲线上的一点，若|PF 1|=5， 则|PF 2|= ． 6.11 【解析】双曲线x 29-y 2 b 2=1中，a=9=3，由双曲线的定义，可得||PF 1|-|PF 2||=6，又|PF 1|=5， 解得|PF 2|=11或﹣1（舍去），故|PF 2|=11. 7．（2017年上海）如图，以长方体ABCD-A 1B 1C 1D 1的顶点D 为坐标原点，过D 的三条棱所在的直线为坐标轴，建立空间直角坐标系，若向量→DB 1的坐标为（4，3，2），则向量→AC 1的坐标是 ． 7.(-4,3,2) 【解析】由→DB 1 的坐标为（4，3，2），可得A （4，0，0），C(0,3,2)，D 1(0,0,2)， 初二（上）第二次月考数学试卷 一、填空题 1. 正比例函数图像上有两点与，则的值为____________ ()1,3-(),21a a +a 2. 若二次三项式在实数范围内不能分解因式，则m 的范围是____________ ()2132m x x +-+3. 已知反比例函数的图象经过点，则m 的值为____________2y x = (),1A m 4. 若点在反比例函数的图像上，则当函数值时，自变量(),2A m -4y x =2y ≥-x 的取值范围是____________ 5. 过反比例函数图象上一点A ，分别作轴、()0k y k x =≠x y 轴的垂线，垂足分别为B 、C ，如果的面积为3，则k 的值为____________ ABC 6. 已知点在双曲线上，且OA=4，过A 作AC 垂直(),A a b 6y x =x 轴于点C ，OA 的垂直平分线交线段OC 于B ，则ABC 的周长为____________ 7. 如图，ABC 中，∠B=22.5°，∠C=60°，边AB 的垂直平分线交BC 于D ，交AB 于E ，已知，则的面积为____________ BD =ABC 8. 如果要通过平移直线得到的图像，那么直线13y x =-53x y --=13 y x =-必须向____平移____个单位 9. 关于的一次函数x ()313 y m x m =--+的图像不过第四象限，则试求m 的取值范围____________ 10. 直线交轴、轴于A 、B 两点，P 是反比例函数6y x =-x y ()40y x x =>图象上位于直线下方的一点，过点P 作轴的垂线，垂足为点M ，交AB 于点E ，过点P 作x 轴的垂线，垂足为点N ，交AB 于点F 。则____________ y AF BE ?=11. 如图4，已知在ABC 中，AB=AC ，∠A=120°，AC 的垂直平分线分别交AC 、BC 于点D 、E ，若设，DE x =，求与之间的关系式____________ BC y =y x 12. 如图5，直线与双曲线交于A 、B 两点，其横坐标分别为1和5，则不等式1y k x b =+2k y x = 的解集是____________21k k x b x +≤ 上海民办上宝中学数学三角形解答题同步单元检测（Word 版 含答案） 一、八年级数学三角形解答题压轴题（难） 1．直线MN 与直线PQ 垂直相交于O ，点A 在直线PQ 上运动，点B 在直线MN 上运动． （1）如图1，已知AE 、BE 分别是∠BAO 和∠ABO 角的平分线，点A 、B 在运动的过程中，∠AEB 的大小是否会发生变化？若发生变化，请说明变化的情况；若不发生变化，试求出∠AEB 的大小． （2）如图2，已知AB 不平行CD ，AD 、BC 分别是∠BAP 和∠ABM 的角平分线，又DE 、CE 分别是∠ADC 和∠BCD 的角平分线，点A 、B 在运动的过程中，∠CED 的大小是否会发生变化？若发生变化，请说明理由；若不发生变化，试求出其值． （3）如图3，延长BA 至G ，已知∠BAO 、∠OAG 的角平分线与∠BOQ 的角平分线及延长线相交于E 、F ，在△AEF 中，如果有一个角是另一个角的3倍，试求∠ABO 的度数． 【答案】（1）135°；（2）67.5°；（3）60°， 45° 【解析】 【分析】 （1）根据直线MN 与直线PQ 垂直相交于O 可知∠AOB=90°，再由AE 、BE 分别是∠BAO 和∠ABO 的角平分线得出1BAE OAB 2∠=∠，1 ABE ABO 2 ∠=∠，由三角形内角和定理即可得出结论； （2）延长AD 、BC 交于点F ，根据直线MN 与直线PQ 垂直相交于O 可得出∠AOB=90°，进而得出OAB OBA 90∠+∠=? ，故PAB MBA 270∠+∠=?，再由AD 、BC 分别是∠BAP 和∠ABM 的角平分线，可知1BAD BAP 2∠= ∠，1 ABC ABM 2 ∠=∠，由三角形内角和定理可知∠F=45°，再根据DE 、CE 分别是∠ADC 和∠BCD 的角平分线可知 CDE DCE 112.5∠+∠=?，进而得出结论； （3））由∠BAO 与∠BOQ 的角平分线相交于E 可知 1EAO BAO 2∠=∠,1 EOQ BOQ 2 ∠=∠ ，进而得出∠E 的度数，由AE 、AF 分别是∠BAO 和∠OAG 的角平分线可知∠EAF=90°，在△AEF 中，由一个角是另一个角的3倍分四种情况进行分类讨论． 【详解】 （1）∠AEB 的大小不变， ∵直线MN 与直线PQ 垂直相交于O ， 2017年上海市黄浦区高考数学一模试卷 一、填空题（本大题共有12题，满分54分.其中第1～6题每题满分54分，第7～12题每题满分54分）考生应在答题纸相应编号的空格内直接填写结果.[ 1．若集合A={x||x﹣1|＜2，x∈R}，则A∩Z=． 2．抛物线y2=2x的准线方程是． 3．若复数z满足（i为虚数单位），则z=． 4．已知sin（α+）=，α∈（﹣，0），则tanα=． 5．以点（2，﹣1）为圆心，且与直线x+y=7相切的圆的方程是． 6．若二项式的展开式共有6项，则此展开式中含x4的项的系数是． 7．已知向量（x，y∈R），，若x2+y2=1，则的最大值为． 8．已知函数y=f（x）是奇函数，且当x≥0时，f（x）=log2（x+1）．若函数y=g （x）是y=f（x）的反函数，则g（﹣3）=． 9．在数列{a n}中，若对一切n∈N*都有a n=﹣3a n ，且 +1 =，则a1的值为． 10．甲、乙两人从6门课程中各选修3门．则甲、乙所选的课程中至多有1门相同的选法共有． 11．已知点O，A，B，F分别为椭圆的中心、左顶点、上顶点、右焦点，过点F作OB的平行线，它与椭圆C在第一象限部分交于点P， 若，则实数λ的值为． 12．已知为常数），，且当x1，x2∈[1，4]时，总有f（x1）≤g（x2），则实数a的取值范围是． 二、选择题（本大题共有4题，满分20分．）每题有且只有一个正确答案，考 生应在答题纸的相应编号上，将代表答案的小方格涂黑，选对得5分，否则一律得零分． 13．若x ∈R ，则“x ＞1”是“ ”的（ ） A ．充分非必要条件 B ．必要非充分条件 C ．充要条件 D ．既非充分也非必要条件 14．关于直线l ，m 及平面α，β，下列命题中正确的是（ ） A ．若l ∥α，α∩β=m ，则l ∥m B ．若l ∥α，m ∥α，则l ∥m C ．若l ⊥α，m ∥α，则l ⊥m D ．若l ∥α，m ⊥l ，则m ⊥α 15．在直角坐标平面内，点A ，B 的坐标分别为（﹣1，0），（1，0），则满足tan ∠PAB?tan ∠PBA=m （m 为非零常数）的点P 的轨迹方程是（ ） A ． B ． C ． D ． 16．若函数y=f （x ）在区间I 上是增函数，且函数在区间I 上是减函数， 则称函数f （x ）是区间I 上的“H 函数”．对于命题：①函数是（0， 1）上的“H 函数”；②函数是（0，1）上的“H 函数”．下列判断正确 的是（ ） A ．①和②均为真命题 B ．①为真命题，②为假命题 C ．①为假命题，②为真命题 D ．①和②均为假命题 三、解答题（本大题共有5题，满分76分．）解答下列各题必须在答题纸相应编号的规定区域内写出必要的步骤． 17．在三棱锥P ﹣ABC 中，底面ABC 是边长为6的正三角形，PA ⊥底面ABC ，且 PB 与底面ABC 所成的角为 ． （1）求三棱锥P ﹣ABC 的体积； （2）若M 是BC 的中点，求异面直线PM 与AB 所成角的大小（结果用反三角函2017年高考数学上海试题及解析
2017-2018年上海市上宝中学八上第二次月考
上海民办上宝中学数学三角形解答题同步单元检测(Word版 含答案)
2017年上海市黄浦区高考数学一模试卷(解析版)