Ⅱ. Grammar and Vocabulary
Section A
Directions: Read the following sentences, and choose the best answer to complete the sentence.
21. When shopping, a woman ________ to find an unexpected bargain.
A. is always trying
B. will try
C. has been trying
D. had tried
22. When I wanted to show myself up at the party, the song I ________ so many times suddenly became difficult.
A. am practicing
B. had practiced
C. will be practicing
D. have practiced
23. All those ________ the pop singing group cheered, applauding as they sang.
A. watched
B. was watching
C. watching
D. to watch
24. The car moved so fast the it went through the highway-dividing fence, ________ in a collision in which five people died.
A. to result
B. resulting
C. resulted
D. having resulted
25. Some psychologists suggest that one could improve his performance when mentally imagining himself ________ (perform) well at some back.
A. performing
B. to perform
C. performed
D. having performed
26. ________ with a roomful of dresses, a woman may easily spend hours going from one dress on another before selecting the dresses she wants to try on.
A. Having faced
B. Faced
C. To face
D. Facing
27. It is easy ________ (imagine) the consequences of unchecked plant disease: food shortage could kill millions of people and cause unrest in the world.
A. imagine
B. to be imagined
C. imagining
D. to imagine
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28. Many strange new means of transport have been developed in our century, the strangest of ________ is the hovercraft.
A. them
B. which
C. what
D. whatever
29. Performances, ________ the public was admitted for free, were arranged fortnightly.
A. them
B. in which
C. to which
D. when
30. Darwin, ________ book On the Origin of Species probably ranks second only to the Bible had great impact on Western thought.
A. who’s
B. which
C. for whom
D. whose
Section B
Directions: Complete the following sentences by using the proper form of the words or expressions given in the frame. Each one can only be used once.
A. ancestor
B. creative
C. official
D. cold
E. serious
F. serve
G. spread
H. store
I. taste
J. rare
K. conditioning
A Brief History of Ice
Ice is a lot more than frozen water. In ancient days, it was nearly worth its weight in gold. Egyptian pharaohs, Roman emperors, and Mideastern kings ordered thick pieces of ice brought from the snow-covered mountain peak to make their drinks __31__. Floated on ships, ice soon became a quick business -- not only as refreshment but also to cool houses in an old version of air __32__. The Chinese of 3,000 years ago built special buildings to __33__ ice. The Persians enjoyed put ice into fruit juices, which was called sharbia. In time, a craze for sharbia __34__ throughout Europe.
The best was yet to come. In Italy, around 1550, some __35__ cooks added milk to the recipe（菜谱）. Presto! The __36__ of ice cream! But, for centuries, it was __37__ and expensive.
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In 1809, Dolly Madison, wife of the fourth president of U. S. A., impressed her dinner guests by being the first to __38__ ice cream at the White House.
Apart from nice desserts, ice was __39__ business. It could cool fish, meat, fruits, and vegetables sent all over the world. Since then, we needn’t climb up mountains for ice all year round.
A small ice cube has a big history. Imagine yourself a queen or king of Persia when you put an ice into your lemonade. It’ll __40__ even better.
(B)
A. alternative
B. concept
C. explore
D. founder
E. honored
F. influential
G. odd
H. picture
I. safeguard
J. taste
K. written
There’s a Museum for Everyone
What comes to mind when you think of a museum? Perhaps you __41__ an imposing building in a rather conventional（传统的）design made of high-quality stone? Perhaps you imagine a classic __42__, such as the museum of natural history, the museum of fine art, or the national museum -- its exhibits displayed in a time - __43__ style and falling in line with tradition.
Some people might consider these customary institutions the best way to __44__ the future of typical educational topics. A museum of old breadboards, they may say, does not make up an orthodox（正统的）exhibition. But according to the Museum Association, a museum is defined as a place enabling “... people to __45__ collections for inspiration, learning and enjoyment.” And so of the 2500 estimated museum in the UK, a few are bound to be considered a little unconventional.
What about Neil Cole’s Adventures in Science Fiction? This odd museum of classic science fiction was opened by the __46__ Neil Cole. “Science fiction has become more mainstream so I thought people might want to see this,” says Mr Cole.
If clocks are more to your __47__, why not visit the Cuckoo-land Museum? Set up by
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brothers Roman and Maz Piekarski, this collection of over 600 cuckoo（布谷鸟）clocks is considered to be the largest of its kind in the world -- and all from the Black Forest region in Germany.
Finally, you could visit the Victor Wynd Museum of Curiosities in London. This __48__ institution reverses the trend of educating visitors through __49__ explanations alongside its exhibits. Instead, it displays all of its __50__ treasures, which include dodo bones, shrunken heads and a collection of McDonald’s Happy Meal toys, with no explanation at all.
Ⅲ. Reading Comprehension
Section A
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
Laugh-lab, an experiment set up more than a year ago, established that the British, Irish, New Zealanders and Australians prefer a play on words and that the French, Danes and Belgians have a taste for the surreal（超现实主义的）. Americans and Canadians, __51__, laugh at jokes showing one group’s superiority over another. The Germans apparently have the __52__ sense of humour -- if only because they have no national preference, and therefore find almost anything funny.
The winning joke was the product of international selection. It was posted by Gurpal Gosall, a 31-year-old psychologist from Manchester. This joke, according to Richard Wiseman, founder of Laugh-lab, __53__ all. It also contained the three __54__ that were found central to honour: a sense of superiority, an unexpected response, and a sad feeling. The joke was that:
A couple of New Jersey hunters are out in the woods when one of them falls to the ground. He doesn’t seems to be breathing, his eyes are rolled back in his head. The other guy whips out his mobile phone and calls the emergency services. He gasps to the operator: ‘My friend is dead!
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What can I do?’ The operator, in a clam, soothing voice says: ‘Just take it easy. I can help. First, let’s make sure he’s __55__.’ There is a silence, then a shot is heard. The guy’s voice comes back on the line. He says: ‘OK, now that?’
Dr Gosall and __56__ the joke for years. He said: ‘It makes people feel better ... reminds you that there’s always someone out there doing something more __57__ than you.’ It was one of a series of jokes read to a volunteer who was being given a brain scan. With each joke, a specific area at the front of the volunteer’s brain lit up. There was also a reaction in an area linked to __58__, showing recognition of an old joke. ‘It __59__ other research, because if people have damage to that part of the brain, then they lose their sense of humour,’ Dr Wiseman said.
There were other __60__. The Laugh-lab computers counted the number of words in every joke that people submitted（提交）. According to the data, jokes containing 103 are the funniest. Interestingly, the winning joke is 102 words long-almost the __61__ length for a joke!
Many of the jokes submitted contained references to __62__. The researchers found that jokes mentioning ducks were seen as funnier than other jokes. Perhaps it’s because of their webbed feet or their odd shapes. __63__, the implication is clear -- if you are going to tell a joke involving an animal, make it a duck.
The Laugh-lab computer also recorded the date and time that each person from the UK __64__ the jokes in Laugh-lab. Careful analysis of the data revealed that people found the jokes funniest on the 7th October at 6:03 in the evening. Perhaps they have __65__ discovered the funniest moment of the year!
51. A. in addition B. on the other hand C. by all means D. to a certain degree
52. A. keenest B. broadest C. strangest D. worst
53. A. differed from B. relied on C. cared about D. appealed to
54. A. elements B. parts C. functions D. styles
55. A. kind B. alive C. dead D. quiet
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56. A. liked B. made C. missed D. shared
57. A. violent B. helpful C. stupid D. sensible
58. A. language B. laughter C. memory D. analysis
59. A. dates back to B. keeps up with C. breaks away from D. fits in with
60. A. terms B. jokes C. discussions D. discoveries
61. A. perfect B. similar C. familiar D. expected
62. A. ducks B. animals C. shapes D. fears
63. A. Additionally B. Regardless C. Surprisingly D. Somehow
64. A. tested B. told C. searched D. rated
65. A. scientifically B. moderately C. separately D. occasionally
Section B
Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.
(A)
Some people have lot of hair while others have a little. Some people have no hair
P1 on the top of their head; they are bald. The important thing is -- are you happy with the hair you have?
P2 Problem hair is often a result of an unhealthy diet and lifestyle.
5 To ensure your hair looks its best, pay attention to what you eat. Lack of protein and iron
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makes your hair less shiny. So, you need adequate amounts of green
P3 vegetables, fruits and dairy products. Drink eight to ten glasses of water a day. This will help keep your hair from becoming dry. Avoid eating sweets or high-fat foods.
They can slow hair growth.
10 Stress in your life can also secretly rob your hair of its shiny beauty. Relaxing music
P4 and more rest are both remedies for stress.
In addition, remember to rinse your hair thoroughly after you shampoo it. Brushing
P5 your hair regularly will help it grow. It will also make it look healthy. Do not rub your hair too quickly when you dry it. It could damage your hair.
15 Last, be sure to choose the right hair products. The choices you make are they key to
P6 healthy hair.
66. The author mentions the different people’s hair in paragraph 1 to ________.
A. introduce the following topic of hair care
B. show the importance of having a lot of hair
C. stress people’s dissatisfaction with their hair
D. describe the current situation of hair care market
67. According to the passage, if you want to fasten hair growth, you can ________.
A. have more green vegetables and dairy products
B. eat fewer candies or foods containing much fat
C. drink eight or more glasses of water a day
D. listen to relaxing music and take more test
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68. The meaning of word “regularly” (in Para 5) is closest to ________.
A. often
B. thoroughly
C. quickly
D. happily
69. Which of the following is the best title for the passage?
A. Bald? It’s impossible!
B. Healthy life, healthy hair!
C. To be bald or hairy? It’s a question.
D. More Exercise, More Food, More Hair!70. Which of the following structures matches the passage above?
(B)Lift Ev’ry Voice
Lillian M. Whitlow
$34.99 hc / $23.99 sc / $3.99 eb
Lillian M. Whitlow’s Lift Ev’ry Voice is a collection that consists of short life stories of several African-Americans in history who have provided America with their extraordinary gifts and talents in music, sports,
It Came by Loss Bill McCausland $34.99 hc / $23.99 sc / $3.99 eb It came by Loss is a tale about Pete Gordon and his struggles after the death of his mother and his friend and how he was able to rise from these tragedies.
art, literary works, theatre, politics and other areas.
The Truth Won’t Help Them Now
Joan Hunter and Steven Cobos
$22.95 sc/ $3.99 eb
Won’t Help Them Now is a fast-paced tale of murder and gangland intrigue, involving a gritty district attorney and a band of detectives on a quest to solve two separate crimes in 1939 Los Angeles. “Through the eyes of the East”Inspirational poems Salma Hamid Hussain $27.99 sc
Russain writes Through the eyes of the East in her hope to lead the younger generation in acquiring a spiritual perception in life. Her poems reflect traditional values pushed into the background by this world’s fast-changing landscape.
*hc: hardcover
*sc: softover
*eb: electronic business
71. Which of the following books only provides a printed version?
A. Life Ev’ry Voice
B. It Came by Loss
C. The Truth Won’t Help Them Now
D. “Though the eyes of the East” Inspirational poems
72. If you want to read historical stories, you’d better choose the book written by _______.
A. Bill McCausland
B. Lillian M. Whitlow
C. Salma Hamid Hussain
D. Joan Hunter and Steven Cobos
(C)
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If you are over 20, look away now. Your cognitive （认知的）performance is probably already on the wane. The speed with which people can process information decreases at a steady rate from as early as their 20s.
A common test of processing speed is the “digit symbol substitution test”, in which a range of symbols are paired with a set of numbers in a code. Participants are shown the code, given a row of symbols and then asked to write down the corresponding number in the box below within a set period. There is nothing cognitively challenging about the task: levels of education make no difference to performance. But age does. Speed declines as people get older.
Why this should be is still uncertain, but a range of tentative（尝试性的）explanations has been put forward. One points the finger at myelin, a white, fatty substance that coats axons, which carry signals from one neuron to another. Steady reductions in myelin as people age may be slowing down these connections. Another possibility, says Timothy Salthouse, director of the Cognitive Ageing Laboratory at the University of Virginia, is exhaustion of a chemical called dopamine（多巴胺）.
Fortunately, there is some good news to go with the bad. Psychologists distinguish between “fluid intelligence”, which is the ability to solve new problems, and “crystallised intelligence”, which roughly equates to an individual’s stock of accumulated knowledge. These reserves of knowledge continue to increase with age: people’s performance on vocabulary and cognitive decline. In an old but instructive study of typists ranging in age from 19 to 72, older workers typed just as fast as younger ones, even though their tapping speed was slower. They achieved this by looking further ahead in the text, which allowed them to keep going more smoothly.
What does all this mean for a lifetime of continuous learning? It is encouraging so long as people are learning new tricks in familiar fields. “If learning can be absorbed into an existing knowledge base, advantage favours the old,” says Mr Salthouse.
73. The phrase “on the wane” (in paragraph 1) is closest in meaning to _______.
A. declining
B. improving
C. varying
D. maintaining
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74.By “age does” (in paragraph 2), the writer means that _______。
A. the level of a participant’s education is related to how old he is
B. the older a participant is, the more slowly he writes down the number
C. a participant’s age affects his ability to figure out what the symbol means
D. how much time a participant is given to finish the task depends on his age
75. What can be inferred from the passage?
A. Dopamine has been proved to be a chemical that affects people’s cognitive ability.
B. One way to avoid cognitive decline is to have as much experience as possible in life.
C. Moving older workers into an entirely new area of knowledge is less likely to go well.
D. Crystallised intelligence plays an important role in keeping people alert in new situations.
76. What is the passage mainly about?
A. Why the brain fails with the age needs to be explored.
B. “Digit symbol substitution test” proves to be groundless.
C. One’s knowledge base matters more than his cognitive ability.
D. The brain changes in both good and bad ways as one ages.
Section C
Directions: Complete the following passage by using the sentences given below. Each sentences can be used only once. Note that there are two more sentences than you need.
A. Summer and Saturday jobs prepare young people for successful careers in later life, teaching
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vital soft skills.
B. Students take summer jobs mainly to cover their tuition and this practice is highly appreciated by their parents.
C. That said, holidays, festivals and time spent with friends cost money.
D. This move comes at a time of apparent need.
E. Soft skills are so essential to students’ future career that they have to take summer jobs to acquire them.
F. Vacancies can range from roles as boring as fry cook, to seasonal work at a theme park.
The Benefits of a Summer Job
Have you ever had a summer job? For many young people, summer is an exciting period where education stops and fun begins. ____77____ And the very group who have the time to benefit from the fun summer has to offer may not have the funds to do so. The solution? A summer job.
The concept of students and younger members of society being gainfully employed over the summer period is not a new one. And there are opportunities out there for those who want to earn. ____78____ In many cases, the jobs only pay minimum wages, which may only help you out. But the money is not the only thing that’s gained.
_____79_____ Indeed, when talking about their experiences of summer jobs, people said they got “invaluable training” and learnt skills such as punctuality, tolerance, and the importance of hard work. These opportunities are thought to be so important that the UK government has placed 20,000 summer job vacancies on its Find a Job website.
____80_____ The percentage of young people working while studying has more than halved since 1997, falling from 42% to 18% in 2014. Those are the findings of a UK government report on the death of the Saturday job. Ester McVey believes this is because young people are choosing to focus more on education rather than earning extra money.
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Ⅳ. Verb filling
Directions: Fill in the blanks with the verbs in their proper forms.
81. Ten more people are yet to come. So there _______ 20 altogether. (be)
82. When the light suddenly went out, Ann _______ to get the candle. (offer)
83. We were all laughing even though Daniel _______ his joke yet. (not finish)
84. By the end of the 18th century, the city’s population _______ about two million. (be)
85. I’d really like to go to France on a tour one of these days, but I _______ the opportunity so far. (not have)
86. -- Excuse me, sir. You are not supposed to be here. This area is for the airport staff only.
-- I’m sorry. I _______ the sign. (not notice)
87. A satellite has equipment for _______ electricity from sunshine, using very broad sun panels （面板）. (make)
88. In the woods there were safe roads for strangers _______ their cars along. (drive)
89. _______ for many purposes, computers can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. (design)
90. As an added safety measure, he had special cabinets _______ so that he could lock up his most valuable objects every night. (build)
Ⅴ. Translation
Directions: Translate the following sentences into English, using the words given in the brackets.
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91. 我认为盯着别人看是不礼貌的。(consider)
92. 吵闹声不绝于耳，我精神无法集中于学习。(concentrate)
93. 她的仔细观察使得她能够发现其他医生没有发现的问题。(enable)
94. 坚持运动不是一件容易的事情，但只要你能够坚持你的计划，就一定能成功。(stick)
KEYS
语法选择
21-25 ABCBA 26-30 BDBCD
十一选十
31-35 DKHGB 36-40 AJFEI
41-45 HBFIC 46-50 DJAKG
完形填空
51-55 BBDAC 56-60 ACCDD 61-65 ABBDA
阅读理解
66. A 67. B 68. A 69. B 70. D
71. D 72. B
73. A 74. B 75. C 76. D
六选四
77. C 78. F 79. A 80. D
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语法填空
81. will be 82. offered 83. hadn’t finished 84. had been/ was
85. haven’t had 86. didn’t notice 87. making 88. to drive
89. Designed 90. built
f翻译
91. I consider it impolite to stare at others.
92. With all those noise going on , I fail to concentrate on the studying .
93. It was her careful observation that enabled her to spot/ detect a problem that other doctors had.
94. Keeping exercise is not an easy task, but as long as you can stick to your plan, you are sure to succeed.
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嘉定二中2020学年度第--学期第二次质量检测高二物理拓展学科试卷 命题人：高二物理备课组 2020年12月 一、单项选择题（共40分。第1-8小题，每小题3分，第9-12小题，每小题4分。每小题只有一个正确答案。） 1. 下列现象中，属于电磁感应现象的是（） A. 磁铁吸引小磁针． B. 通电线圈在磁场中发生转动． C. 小磁针在通电导线附近发生偏转． D. 闭合线圈在磁场中运动而产生电流． 【答案】D 【解析】 【详解】磁铁吸引小磁针是磁体间的相互作用，选项A错误；通电线圈在磁场中发生转动是电磁场对电流的作用，选项B错误；小磁针在通电导线附近发生偏转是电流的磁效应，选项C错误；闭合线圈在磁场中运动而产生电流是属于电磁感应现象，故选项D正确；故选D. 2. 下列波中，不属于电磁波的是（） A. X射线 B. 红外线 C. 超声波 D. γ射线 【答案】C 【解析】 【分析】了解电磁波的定义及组成即可做出正确判断。 【详解】根据教材中关于电磁波谱的说明可知，无线电波、红外线、可见光、X射线和γ射线都属于电磁波，超声波属于声波，C正确。 故选C。 3. 下列物理量的定义不属于比值法定义的是（） A. 电流强度 U I R = B. 加速度? = ? v a t C. 电场强度 F E q = D. 电势P E q ?=
【答案】A 【解析】 【分析】 【详解】A ．电流强度 U I R = 并不是电流的定义式，电流强度是单位时间内流经导体横截面的电荷量，因此电流的定义式应是 q I t = A 错误，故A 符合题意； B ．加速度 ?= ?v a t 是比值定义式，故B 不符合题意； C ．电场强度与放入电场中的电荷无关，所以 F E q = 属于比值定义法，故C 不符合题意； D ．电场中某一点的电势与放入电场中的电荷无关，电荷量变大，电势能也变大，电势不变 P E q ?= 采用的是比值定义法，故D 不符合题意。 故选A 。 4. 磁通量的单位Wb 与下列单位相一致的是（ ） A. T ·s 2 B. T ·m 2 C. N ·s/A D. kg ·m 2/s 2 【答案】B 【解析】 【详解】AB ．磁通量的计算公式 Φ=BS B 的单位是T ，S 的单位是m 2，所以磁通量的单位是T?m 2．不是T?s 2，故B 正确，A 错误； C ．根据磁感应强度的定义
2018-2019学年曹二高一上期末数字试卷 2019.1 一、填空题： 1、(19年曹杨高一期末1)若集合{}31,2,3,4,0,1x A B x x R x ?-? ==<∈??+?? ，则A B I =__________； 答案：{}1,2 2、(19年曹杨高一期末2)函数()f x =_________； 答案：x<=1,≠0 3、(19年曹杨高一期末3)方程()()222log 1log 21x x -=+的解为x =___________； 答案：4 4、(19年曹杨高一期末4)已知函数()y f x =是奇函数，且当0x <时，()3x f x x =+，则当0x >时，()f x =__________； 答案：()3x f x x =-+ 5、(19年曹杨高一期末5)函数()()211f x x x =+≤-的反函数()1f x -=__________； (2)x ≥ 6、(19年曹杨高一期末6)已知扇形的周长为4，面积为1，则扇形的圆心角为__________； 答案：2 7、(19年曹杨高一期末7)设m R ∈，若函数()()211f x m x mx =-++是偶函数，则()f x 的单调递减区间是__________； 答案：（0，+∞） 8、(19年曹杨高一期末8)设函数()1f x x =-，若0a b <<且()()f a f b =，则ab 的取值范围是_________；
答案：（0,1） 9、(19年曹杨高一期末9)对于非空数集,A B ，定义集合运算：{},A B ab a A b B =∈∈e ，已知{}{}1,2,1,1,3A B ==-，则集合A B e 中的元素之和为_________； 答案：9 10、(19年曹杨高一期末10)已知点()(),P a b a b ≠是直角坐标平面第一象限内一点，点P 关于直线y x =的对称点为点'P ，若点P 及点'P 都在幂函数()y f x =的图像上，则()f x =__________； 答案：1/x 11、(19年曹杨高一期末11)已知函数()()()9 6,2201 x f x g x a a a x = -=?->+，若对任意[]10,2x ∈，总存在[]20,2x ∈，使()()21g x f x =成立，则实数a 的取值范围是__________； 答案：[3,+∞） 12、(19年曹杨高一期末)已知函数()()2 024x x m f x m x mx m x m ?≤?=>?-+>??，若存在实数b ， 使得函数()()g x f x b =-有3个零点，则实数m 的取值范围是_________； 答案：m>3 二、迭择题： 13、(19年曹杨高一期末)如果,a b c d >>，则下列不等式成立的是（） A.a c b d ->- B.a c b d +>+ C. a b d c > D.ac bd > 答案：B 14、(19年曹杨高一期末)唐代诗人杜牧的七绝唐诗中的两句诗为“今来海上升高望，不到蓬 莱不成仙。”其中后一句“成仙”是“到蓬莱”的（） A 、充分非必要条件 B 、必要不充分条件 C 、充要条件 D 、既不充分又不必要条件 答案：A 15、(19年曹杨高一期末)已知角α的终边在第一象眼，那么角 3 α 的终边不可能再（）
2018年曹杨二中高二上期末试卷 2018.1.17 一、填空题 1. 已知圆柱的侧面展开图是边长为2π的正方形，则该圆柱的体积为____________ 2. 若无穷等比数列{}n a 的首项及公比均为 1 2 ，则数列{}n a 的各项和为____________ 3. 已知一个关于x 、y 的二元一次方程组的增广矩阵是121002-?? ??? ，则x y +=____________ 4. 若已知数列{}n a 为等比数列，且62a =，则 375 9 a a a a -=____________ 5. 已知等边ABC 的边长为1，用斜二测画法作它的直观图'''A B C ，则'''A B C 的面积为 ____________ 6. 设()f n 表示() 2*n n N ∈的各位数码之和，例如2864=，6+4=10，则f(8)=10，记()()1f n f n =， ()()()* 1k k f n f f n k N +=∈????，则()20187f =____________ 7. 已知数列{}n a 的通项公式为2 n a n kn =+，若对任意的正整数n ，都有1n n a a +>，则实数k 的取值范围 是____________ 8. 以棱长为1的正方体的各个面中心为顶点的凸多面体的体积为____________ 9. 执行如图的程序框图，若p=9，则输出的S 的值为____________ 10. 半径为R 的两个球，其中一个球的球心在另一个球的球面上，则两球的交线长为____________ 11. 长方体1111ABCD A B C D -的八个顶点均在同一个球面上，若11AB AA == ，BC =A 、B 两 点的球面距离为____________
2018年上海嘉定区高中排名 1、交大附中嘉定分校 上海交通大学附属中学嘉定分校坐落于嘉定区嘉定新城，是一所由上海市教委、上海交通大学、上海市嘉定区人民政府按照海市实验性、示范性高中标准共同创办，上海交通大学附属中学承办的寄宿制高中。2009年11月25日，在沈晓明副市长的领导和见证下，嘉定区人民政府、上海交通大学、上海市教委就交大附中在嘉定新城承办分校达成共识，签订了上海交通大学附属中学嘉定分校合作办学协议书。 嘉定分校与本部实行一体化运作（一个法人、二个招生代码），实施教育资源共享、教学管理方法同步、整体综合联动的操作模式。分校共设24个班级（另附国际部12个班级），办学主体是嘉定区教育局。学校占地面积150亩，建筑面积65700平方米，绿化率达35%，拥有教学实验楼、图书馆、多功能厅、游泳馆、篮球馆、音乐厅等现代化的教学设施和温馨舒适的各类生活设施。 2、嘉定第一中学 上海市嘉定区第一中学创办于1926年，1958年被命名为首批上海市重点中学，1985年初高中脱钩，学校改办高级中学，2005年被命名为首批“上海市实验性示范性高中”。学校现有38个教学班（其中8个新疆班），约1500名学生,205名教职工(其中教师151名)。学校占地162亩，建筑总面积5万余平方米。 3、嘉定第二中学 上海市嘉定区第二中学是一所与共和国同龄的具有浓郁文化底蕴的区重点中学。学校经过六十多年办学实践的积淀和提炼，形成了“文化立校、格物修身”的办学理念，致力于培养“有公*识、有文化素养、有国际视野，和谐发展”的一代新人，努力建设“教师队伍高素质，教育教学高质量，管理运作高效率，校园文化高品位，办学条件高标准”的现代化高中。学校现有专任教师112人，其中市特级教师1名，市德育管理实训基地主持人1名，区学术技术带头人1名，区名师工作室领衔人2名，区学科带头人4名，区骨干教师6名。 4、上外嘉定外国语实验高中
曹杨二中高一期末数学试卷 2019.06 一. 填空题 1. 已知向量(3,1)a =，(,6)b x =-，若a b ⊥，则实数x 的值为 2. 若120°角的终边经过点(1,)P a -，则实数a 的值为 3. 已知向量(4,3)a =，则a 的单位向量0a 的坐标为 4. 在等差数列{}n a 中，165a a +=，43a =，则8a 的值为 5. 若a 、b 为单位向量，且2()3a a b ?+= ，则向量a 、b 的夹角为 （用反三角函数值表示） 6. 已知向量(cos ,sin )a θθ=，(1,3)b =，则||a b -的最大值为 7. 若4sin 25 θ =，且sin 0θ<，则θ是第 象限角 8. 已知△ABC 是边长为2的等边三角形，D 为BC 边上（含端点）的动点，则AD BC ? 的取值范围是 9. 若当x θ=时，函数()sin 2cos f x x x =-取得最大值，则cos θ= 10. 走时精确的钟表，中午12时，分针与时针重合于表面上12的 位置，则当下一次分针与时针重合时，时针转过的弧度数的绝对值 等于 11. 如图，P 为△ABC 内一点，且1135 AP AB AC =+，延长BP ， 交AC 于点E ，若AE AC λ=，则实数λ的值为 12. 为了研究问题方便，有时将余弦定理写成：2222cos a ab C b c -+=，利用这个结构解决如下问题：若三个正实数x 、y 、z 满足229x xy y ++=，2216y yz z ++=，2225z zx x ++=，则xy yz zx ++= 二. 选择题 13. 已知等差数列{}n a 的公差0d ≠，若{}n a 的前10项之和大于前21项之和，则（ ） A. 0d < B. 0d > C. 160a < D. 160a > 14. 已知数列{}n a 满足1(1)n n n n a a a +?=+-（n *∈N ），则42 a a 的值为（ ） A. 1615 B. 43 C. 13 D. 83
上海市曹杨二中2020-2021学年高二上学期期中考试数学试题 2020.11 一、填空题 1. 已知0120A ??= ???，1201B ?? = ??? ，则2A B +=________. 2. 若{}n a 是等差数列，且13a =，3518a a +=，则7a =________. 3. 设等差数列{}n a 的前n 项为n S ，若533a a =，则 6 4 S S =________. 4. 行列式1 01 2 1 313 1 ---中元素3的代数余子式的值为________. 5. 已知0120A ??= ???，1801B ?? = ??? ，则AB =________. 6. 在无穷等比数列{}n a 中，若()121 lim 3 n n a a a →∞ +++=，则1a 的取值范围为_________. 7. 若数列{}n a 满足，111n n n a a a ++= -，12a =，则数列{}n a 前2022项的积等于________. 8. 已知数列(){} 2log 1n a -为等差数列，且13a =，25a =，则21 32111 1 lim n n n a a a a a a →∞+? ?++ + = ?---?? ________. 9. 已知数列{}n a 的通项公式是231n n a n +=+，若n N >时，恒有1 2100 n a -<成立，则正整数N 的最小值为_________. 10. 已知函数()1x f x x =+，在7行7列的矩阵1112 1317212223277172 73 77a a a a a a a a a a a a ?? ? ? ? ??? 中，ij i a f j ?? = ???，则这个矩阵中所有数之和为_________. 11. 等比数列{}n a 的公比()0,1q ∈，且2 1526a a =，则使1212 11 1 n n a a a a a a ++ +> +++ 成立的正整数n 的取值范围为_________. 12. 已知数列{}n a 满足：12a =，{}()*112,, ,n n n a a a a a n N +-∈∈，记数列{}n a 的前n 项和为n S ，若
上海市嘉定区第二中学2020-2021学年高二上学期第二次月考化学 试题 一、单选题 (★) 1. 购买的某些试剂瓶上常贴有危险化学品的标志。盛装浓硫酸的试剂瓶上所贴的危险化学品标志是( ) A．B． C．D． (★★) 2. 下列有关物理量相应的单位表达错误的是 A．摩尔质量：g/mol B．气体摩尔体积：mol/L C．溶解度：g/100gH2O D．密度：g/cm3 (★★) 3. 深海中存在可燃冰（CH 4·nH 2O固体）。已知：CH 4·nH 2O(s) CH 4(g)+nH 2O(l)-Q （Q>0）深海中能够存在可燃冰，是因为深海具有以下条件中的 A．低温高压B．高温低压C．低温低压D．高温高压 (★) 4. 下列关于Al(OH) 3的性质的叙述错误的是 A．Al(OH)3是难溶于水的白色沉淀B．Al(OH)3不能溶于氢氧化钠 C．Al(OH)3能溶于盐酸D．Al(OH)3属于两性氢氧化物 (★) 5. 把铁粉投入氯化铁、氯化亚铁和氯化铜的混合溶液中，充分反应后铁粉有剩余，则所得溶液中浓度最大的阳离子是 A．Fe2+B．Cu2+C．Fe3+D．H+
(★★★) 6. 证明某溶液只含有 Fe 2+而不含有 Fe 3+的实验方法是 ( ) A．先滴加氯水再滴加硫氰化钾溶液后显红色 B．先滴加硫氰化钾溶液不显红色再滴加氯水后显红色 C．先加入铁粉再滴加硫氰化钾溶液不显红色 D．只需要滴加硫氰化钾溶液 (★) 7. 下列金属中，表面自然形成的氧化层能保护内层金属不被空气氧化的是（） A．K B．Na C．Fe D．Al (★★) 8. 原子结构为的元素，位于元素周期表的 A．第六周期第IV族B．第四周期第VI族 C．第六周期第A族D．第四周期第VIA族 (★) 9. 已知X +、Y 2+、Z -、W 2-四种离子均具有相同的电子层结构。下列关于X、Y、Z、W四种元素的描述，不正确的是( ) A．原子半径：X＞Y＞W＞Z B．原子序数：Y＞X＞Z＞W C．原子最外层电子数：Y＞X＞Z＞W D．金属性：X＞Y，还原性：W2-＞Z- (★) 10. 下列实验事实能用元素周期律解释的是 A．酸性：H2SO3＞H2CO3B．热稳定性：CH4＞SiH4 C．酸性：HCl＞H2S D．热稳定性：HNO3＞H2CO3 (★★★) 11. 对于反应：，下列能量变化示意图正确的是( )
冲刺17年自主招生之 2016年曹杨二中自招数学试卷 1. 存在，可化简为___________. 【答】 【解析】由00a b ab ->， ≥ 00a b ?≤，≤， 原式 += =± ，题有问题 A. B. - C. D. - 2. 123kx k -=有1个整数解x ，正整数k 的个数有____________. A. 4 B. 5 C. 6 D. 7 【答】C 【解析】212312323kx k k k k k =+?+???∣ ∣有()()12116++=个不同解. 3. 同一直角坐标系，y kx b =+（k b ，为实数，0k ≠）代表的直线有无数条，不论怎么抽， 都能得证其中两条过完全相同的象限，至少要抽____________. A. 5 B. 6 C.7 D. 8 【答】A 【解析】除了x 轴y 轴，其他直线至少过两个象限，取5条直线至少有3条非x 轴y 轴，总共四条象限，必有两条过同一象限，4条直线构造1010x x x y ===-=，，，不符合题意 . 4. []x 表示不超过x 的最大整数 . M N ==（x 为实数）. 当1x ≥时，M N 、的大小关系为__________. A. M N > B. M N = C. M N < D. M N ≥ 【答】D 【解析】设()221k k <+，()2211k k k M k ?< +?<+≤≤， 而1k k <+，N k == N M ?≤，取1x =可使等号成立.
5. ABC △中，AB AC AD =，为高，AD BC AB AC +=+， ABC △周长为2，则ABC S △为_________. A. 316 B. 38 C. 3 4 D.无法计算 【答】A 【解析】设2BC a AD h ==， ，224343a h ah h a h +=?=?=， 53 22238 a a a =+??=，243316ABC S ah a ===△ 6. 矩形ABCD 边AB 经过O ⊙圆心O E F ，、分别为AB DC 、与O ⊙交点，34AE AD ==，，5.DF =求O ⊙直径______________.= 【答】10 【解析】设OE r =，()2 22 3544205r r r r =+-+?=?=?直径为 7. 任意实数x y 、，定义2*xy x y ax by = +（a b 、为常数），等式右端的计算是通常的四则运 算. 若1*212*32==，，则()2*1____________.-= 【答】2 【解析】41212223a b a b ?=??+??= ?+? 02a b ?==， ?原式2x ==. 8. 函数121y x x x =+++-∣∣+∣∣∣∣的最小值是______________. 【答】3 【解析】()()2112103y x x x x x = ++-+++--+=∣∣∣∣∣∣≥∣∣，1x =-时等号成立. 9. 实数x y 、满足2 245x x y --=，则2x y -的取值范围是___________. 【答】 9 22 x y -≤ 【解析】设2x y k -=，24250x x k -+-=，9 1682002 k k =-+?△≥≤ A
上海市曹杨二中2018-2019学年英语高二下学期期末模拟试卷 第二部分阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。 A CAREER DISCOVERY DAY Ages: 11—17, with an adult chaperone (监护人) Purpose: To find out what it is like to work at a zoo. Descriptions: Join us for a great programme for middle and high school students to explore animal — re-lated careers at Denver Zoo. From keepers to trainers, vets and exhibits designers, different kinds of possible zoo and animal careers will be explored during our Career Discovery Day this fall. The programme starts with an amazing gathering in which our animal stars will appear and perform. Participants will attend lectures given by professors of the zoo and take part in special tours filled with activities find information. And you, 11 have time to ask questions about what it takes to work on the wild side. Registration required: Registration closes at 10 a. m., September 16th. Lectures and tours are limited to regis-tered participants and their one chaperone only. Cost: Members: $ 70 per person. Nonmembers: $ 75 per person. The cost includes zoo admission for one participant and one required adult chaperone. Note: Participants will not be admitted without an adult chaperone and chaperones must stay with participants during the period of the event. If you have any questions, please call at 720—337—1491 or e-mail at teenprogrammes denverzoo. org. 21. Who would most probably be interested in Career Discovery Day? A. Kids who love animals. B. Adults who are looking for a job.
2020- -2021上海市嘉定二中高一英语上 第一次月考试题 II. Grammar and Vocabulary Section A Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. The Goosehead guide to life Ashley Powers mother bought a computer for her when she was eight. When she was thirteen, she was surfing the Internet regularly, but she ____1____not find anywhere for teenagers to meet and talk. And one day she thought, "If I had my own website, I'd make it a really interesting site for teenagers." So, when Ashley was sixteen, she launched her own website, called Goosehead. She had no idea how big a success it ___2___ (be), but three years later, the site was the most successful teen site in the USA! It was getting 100,000 hits every day, and Ashley had about 30 employees. After a few years, the website closed do w n. Then Ashley, who lives in Los Angeles,____3____(ask) to write a book called The Goosehead Guide to Life. The book is about____4____to design a website and start a business. It begins with a section called All About Ashley, ____5____Ashley tells readers what it's like ____6____(be) the boss of a company when you're only sixteen - not always easy! "I was so happy. But it was crazy in a lot of ways. I got very stressed. I mean. I was only sixteen - I didn't even have a car! If you were sixteen and you had your own company, you'd be stressed too!" In her book, Ashley talks about the problems facing teenagers today, and about the importance of friendship, but also about being independent. "Learn to love your friends but not rely on them. I did that by ___7___ (create) Goosehead on my own." Ashley says that The Goosehead Guide o Life is not a book of teenage advice. "It isn't a book that's going to tell you what to do. I hope you can work that out for ___8___,”she says.“I just want to provide a little inspiration to teenagers. Maybe___9___ reading my story, you'll launch your own website. But perhaps you've got a better idea? Well, if I were you, I'd just do it, ____10____it is. Maybe it won't work-but maybe it will!" Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.
上海市曹杨二中高一上学期期末数学试题 一、单选题 1．已知,,a b c ∈R 且0a ≠，则“240b ac -<”是“函数2 ()f x ax bx c =++的图像恒在x 轴上方”的（ ） A ．充分非必要条件 B ．必要非充分条件 C ．充要条件 D ．既不充分也不必要条件 【答案】B 【解析】解出“函数2 ()f x ax bx c =++的图像恒在x 轴上方”求得等价条件即可辨析. 【详解】 “函数2()f x ax bx c =++的图像恒在x 轴上方”即“240b ac -<且0a >”， 所以“240b ac -<”是“函数2 ()f x ax bx c =++的图像恒在x 轴上方”的必要非充分条 件. 故选：B 【点睛】 此题考查充分条件与必要条件的辨析，关键在于准确弄清二次函数的图象与性质. 2．已知,0x y z x y z >>++=，则下列不等式成立的是 ( ) A ．xy yz > B ．xy xz > C ．xz yz > D ．x y y z > 【答案】B 【解析】利用不等式的基本性质即可得出结果. 【详解】 因为,0x y z x y z >>++=，所以0x >，所以xy xz >， 故选B 【点睛】 本题主要考查不等式的基本性质，属于基础题型. 3．若函数22y x x =-在区间[,]a b 上的值域是[1,3]-，则点(,)a b 位于图中的（ ）
A ．线段A B 或线段AD 上 B ．线段AB 或线段CD 上 C ．线段A D 或线段BC 上 D ．线段AC 或线段BD 上 【答案】A 【解析】根据二次函数图象，结合值域分析定义域区间端点满足的特征，即可得解. 【详解】 作出函数2 2y x x =-的图象，由题在区间[,]a b 上的值域是[1,3]-， 所以1,13a b =-≤≤或11,3a b -≤≤=， 即点(,)a b 位于图中的线段AB 或线段AD 上. 故选：A 【点睛】 此题考查根据函数值域判断定义域特征，并用平面直角坐标系内的点表示满足条件的有序数对，其关键在于熟练掌握二次函数的图像和性质. 4．已知集合{(,)|120,120,,}A s t s t s t =≤≤≤≤∈∈N N ，若B A ?且对任意的 (,)a b B ∈，(,)x y B ∈均有()()0a x b y --≤，则B 中元素个数的最大值为（ ） A ．10 B ．19 C ．30 D ．39 【答案】D 【解析】根据()()0a x b y --≤，转化为任意两点连线的斜率不存在或小于等于零，分析要使这样的点最多，点的分布情况，即可得解. 【详解】
2019—2020学年上海市嘉定一中第一学期高三年级 测试二高中化学 化学试题 可能用到的相对原子质量：H 1 C 12 N 14 O 16 S 32 Cl 35.5 Na 23 K 39 Mg 24 Al 27 Ca 40 Cu 64 Fe 56 Ag 108 Ba 137 Mn 55 Co 59 Li 7 Rb 85 Cs 133 一、单项选择 1．不久前，我国的〝嫦娥〞已去探月，据科学家推测月球的土壤中吸附着数百万吨的3 2 He， 而在地球上氦元素要紧以4 2 He的形式存在，以下讲法中正确的选项是〔〕 A．3 2He 和4 2 He 互为同位素B．4 2 He 比3 2 He 多一质子 C．4 2He 原子核内有4个中子D．3 2 He 和4 2 He 互为同位素异形体 2．把以下4种X的溶液：①10mL 2mol/L;②20mL 2mol/L;③10mL 4mol/L;④20mL 3mol/L，分不加进4个盛有10mL 2mol/L的盐酸的烧杯中，并均加水稀释至50mL，现在X和盐酸和缓地进行反应，那么各烧杯中反应速率大小关系正确的选项是 〔〕 A．①<②<③<④B．①<②=③<④C．①=②<④<③D．①=③<②=④ 3．以下各组物质中，不能按〔〝→〞表示一步完成〕关系相互转互的是〔〕 选项 A B C D a HNO3 S C FeCl2 b NO H2S CO Fe(OH)2 c NO2 SO2 CO2 Fe(OH)3 4．以下各组物质中，仅用水及物质间相互反应不能一一区不的是一组是〔〕A．Na2O2 Al2(SO4)3 MgCl2K2CO3 B．BaCl2Na2SO4(NH4)2SO4KOH C．AgNO3NaCl KCl CuCl2 D．Fe2(SO4)3K2CO3KHSO4 NH4Cl 5．以下有关碳族元素的讲法错误的选项是〔〕
上海市曹杨二中2018-2019学年高二上学期期末数 学试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、填空题 1. 在空间中，若直线与无公共点，则直线的位置关系是________； 2. 两个球的体积之比为8 ：27，则这两个球的表面积之比为________． 3. 若正方体中，异面直线和所成角的大小为 _____； 4. 若圆柱的轴截面面积为2，则其侧面积为___； 5. 正四棱锥底面边长为4，侧棱长为3，则其体积为_____； 6. 若增广矩阵对应的线性方程组为无穷多解，则实数的值为 ________； 7. 有一列正方体，棱长组成以1为首项，为公比的等比数列，体积分别记为，则_________. 8. 已知，用斜二测画法作它的直观图，若是斜边平行于铀的等腰直角三角形，则是________三角形（填“锐角”.“直角”.“钝角”）. 9. 在北纬45°圈上有甲.乙两地，它们的经度差90°，则甲乙两地的球面距离与地球半径的比值为________；
10. 如图，求一个棱长为的正四面体的体积，可以看成一个棱长为1的正方体截去四个角后得到，类比这种方法，一个三对棱长相等的四面体，其三对棱长分别为，则此四面体的体积 为_______； 11. 已知平面截一球面得圆，过圆心且与平面呈45°二面角的平面 截该球面得圆，若球的半径为4，圆的面积为12，则圆的面积为__________； 12. 如图，棱长为3的正方体的顶点在平面上，三条棱都在平 面的同侧，如顶点到平面的距离分别为，则顶点到平面的距离为___________； 二、单选题 13. “直线垂直于的边，”是“直线垂直于的边”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. 如果三棱锥的底面不是等边三角形，两组对棱互相垂直，且顶点在底面的射影在内，那么是的（） A．外心B．内心C．垂心D．重心 15. 底面是正三角形，且每个侧面是等腰三角形的三棱锥（） A．一定是正三棱锥B．一定是正四面体C．不是斜三棱锥D．可能是斜三棱锥三、解答题
Ⅱ. Grammar and Vocabulary Section A Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper from of the given word; for the other blanks, use one word that best fits each blank. (1) Mr. Mancinelli emigrated from Italy to America with his family when he was eight and began working at a local barbershop when he was 11. He now still ___21___ (do) his job full time, cutting hair five days a week from noon to 8 p.m. In the past five years, he ___22___ (work) at Fantastic Cuts, a hair salon ___23___ (locate) in a small shopping center in New York City. (2) The Rocket ___24___ (be) arguably the most popular NBA franchise in China since the team ___25___ (draft) Chinese superstar Yao Ming. Yao played his entire NBA career in Houston. (3) Though it’s not mainstream, if you walk through major cities you may see a fan ___26___ (dress) in the sweeping robes and wide sleeves of Hanfu, which literally translates to “Han clothing.” This kind of clothing ___27___ (sell) well among certain young people. (4) But the central issue ___28___ (remain): who is ___29___ (blame) for the unsustainable imbalance in the world economy --- and how can it ___30___ (tackle)? Section B Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need. 1/ 13
上海市曹杨二中2019-2020学年高二下学期期末考试数学试题 一、填空题 1．已知复数12z i =-，则z =______. 2．()()21m i mi ++是实数，则实数m =______. 3．若,a b R ∈，且()a i i b i +=+，则a b +=______. 4．直线1:10l x y -+=与直线2:50l x y -+=之间的距离是______. 5．若复数z 同时满足2z z i -=，z iz =，则z =______. 6．若抛物线24y x =上一点M 到焦点的距离等于2，则M 到坐标原点O 的距离等于______. 7．若方程220x y x y m +-++=表示一个圆，则实数m 的取值范围是______. 8．过点()3,2P -且与直线210x y ++=垂直的直线方程是______. 9．已知点)M ，椭圆2 214x y +=与直线(y k x =交于,A B ，则ABM △的周长为______. 10．设()1,2A ，()3,1B -，若直线2y kx =-与线段AB 有公共点，则实数k 的取值范围是______. 11．已知双曲线()22 22:10,0x y C a b a b -=>>的左、右焦点分别为1F 、2F ，过1F 的直线与C 的两条渐近线分别交于,A B 两点，若1F A AB =，120F B F B ∈=，则C 的渐近线方程为______. 12．曲线C 是平面内与两个定点()11,0F -和()21,0F 的距离的积等于常数()21a a >的点的轨.给出下列四个结论：①曲线C 过坐标原点；②曲线C 关于坐标原点对称；③若点P 在曲线C 上，则122PF PF a +<；④若点P 在曲线C 上，则12F PF △的面积212S a ≤ .其中，所有正确的序号是______. 二、选择题 13．已知直角坐标系xOy 平面上的直线 1x y a b +=经过第一、第二和第四象限，则,a b 满足（ ） A ．0,0a b >> B ．0a >，0b < C ．0a <，0b < D ．0a <，0b < 14．复数(),z a bi a b R =+∈，()m z z b =+，n z z =?，2p z =，则（ ） A ．m 、n 、p 三数都不能比较大小 B ．m 、n 、p 三数的大小关系不能确定
曹杨二中2017学年度第二学期 高一年级期中考试英语试卷 第Ⅰ卷（共105分） II. Grammar and Vocabulary (50分) Section A Directions: Read the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. Black Friday is the Friday following Thanksgiving Day in the United States, often 1 (regard) as the beginning of the Christmas shopping season. The date for Black Friday 2 (vary) between 23 and 29 November, not like Christmas Eve, Black Friday is not a federal holiday, 3 California and some other states observe “The Day after Thanksgiving” 4 a holiday for state government employees. Many non-retail employees and schools have both Thanksgiving and the day after 5 , followed by a weekend, thereby increasing the number of potential shoppers. It has routinely been the busiest shopping day of the year since 2005. In recent years, many retailers, like Walmart, Target, Toys R’Us and Best Buy kick off a Black Friday saving event 6 stores and online, 7 (lower) the prices on popular toys, updated electronics and fashionable clothes to attract more customers one or two weeks earlier. In some cases, this may trigger more and more ridiculous deals, especially 8 it involves camping outside stores for silly amounts of time to get to a chance at one the only two units available in a particular sale. In many others, it’s just a great time to save some money. Black Friday has long been a high-risk, high-reward day for retailer. 9 the consumers expect long lines and extended hours at stores across the country, the retailers constantly change their retail strategies, 10 (hope) to boost their sales figures. Like it or not, Black Friday will remain important. 【答案】 1.regarded 2.varies 3.but 4.as 5.off 6.at/in 7.lowering 8.when 9.while 10.hoping 【分析】 1. 考察非谓语动词。此处表示被动，且有词组regarded as, 被视为。Black Friday 被视为圣诞购物季节的开