亳州市黉学高中2019-2020学年度上学期12月考试题(A) 高一英语

亳州市黉学高中2019-2020学年度上学期12月考试题(A) 高一英语
亳州市黉学高中2019-2020学年度上学期12月考试题(A) 高一英语

亳州市黉学高中2019-2020学年度上学期12月考(A)

高一英语2019\12

(考试时间:120分钟试卷分值:150分)

听力部分第一节(共5小题;每小题1.5分,满分7.5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

每段对话仅读一遍。

1. What sport does the man like best?

A. Ice skating.

B. Skateboarding.

C. Skiing.

2. Which class is the man taking?

A. Biology.

B. Chemistry.

C. Physics.

3. How many cups of coffee has the woman had?

A. 3.

B. 4.

C. 5.

4. Why does the man lose points?

A. He is usually late for class.

B. He hands in his homework late.

C. He isn’t as smart as other students.

5. What are the speakers talking about?

A. When to announce the news.

B. Who will attend the meeting.

C. What to discuss on Monday.

第二节(共15小题;每小题1.5分,共22.5分)

听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。

听第6段材料,回答第6、7题。

6. Where does the conversation probably take place?

A. At home.

B. At a store.

C. At school.

7. How will the girl find out what she needs to buy?

A. She will ask her teacher.

B. She will go online.

C. She will ask her friend.

听第7段材料,回答第8、9题。8. What is the hardest part of learning French for the man?

A. Reading.

B. Grammar.

C. Writing.

9. Which word should be female, according to the man?

A. Sun.

B. Chair.

C. Hair.

听第8段材料,回答第10至12题。

10. Who does the man want to visit at New Year’s?

A. The woman’s parents.

B. His college friends.

C. His own parents.

11. How will the speakers go on their trip?

A. By train.

B. By bike.

C. By car.

12. Where will the speakers start their journey?

A. Austria.

B. France.

C. Spain.

听第9段材料,回答第13至16题。

13. What did Matt do to his sister Emi?

A. He ate her cake.

B. He poured hot water on her.

C. He replaced her toothpaste with hot pepper.

14. What does the woman say about Emi?

A. She has a good sense of humor.

B. She is not close to her brother.

C. She often scares her brother.

15. How many years apart are Matt and Emi?

A. 1.

B. 5.

C. 10.

16. How does Emi probably feel about Matt’s jokes?

A. She hates them.

B. She th inks they’re funny.

C. She feels hurt.

听第10段材料,回答第17至20题。

17. How long will Ms. Wei’s lecture be?

A. Two hours.

B. Three hours.

C. Four hours.

18. Where is the milk tea from?

A. India.

B. North Africa.

C. England.

19. What will happen during the last part of Ms. Wei’s presentation?

A. Students will make tea.

B. She will talk about tea history.

C. The audience will be able to ask questions.

20. Which month will the famous chef speak?

A. April.

B. May.

C. June.

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, 从每题所给的四个选项(A、B 、C 和D)中选出最佳选项.

A

The Outdoor Centre

Opening times

Water sports: 9 am-5 pm

Play Park: 10 am-4 pm

Entrance/ Car park fees

Low season: Weekdays £2.00 per car

Weekends £3.00 per car

High season: 23 July-11 September

Weekdays and weekends £3.00 per car

One-day adventure(冒险) course

This is a chance you have been waiting for. Come and try sailing, climbing and surfing. This course is trying to introduce outdoor activities to adults in a fun way. You do not need to be very fit or to have had experience of the activities. All you need is to be interested.

Play Park

The Play Park is suitable for children from 2 to 10 years of age. It is one of the best of its type in the country. It has sand and water play, large ball pool, play castle(城堡) and much, much more. Group day and weekend courses

We also offer day and long weekend courses for groups. We receive regular visits from schools and colleges. There are three large rooms with twelve beds in each, which can be booked beforehand for groups of up to 36 people (12 at least).

Summer adventure holiday (for 8-14 years of age)

Safety is of great importance at the Outdoor Centre. All our workers are fully trained in first aid (急救), and able to teach the activities on offer. We also make certain that all children only take part in activities that are suitable for their age and physical abilities. For this programme children must be able to swim 25 metres and be in good physical health.

21. How much should a family driving two cars pay when entering the centre in August?

A.£2.00

B.£3.00

C.£4.00

D.£6.00

22. Which of the following is suitable for a group of ten children aged 6 to 8?

A. Play Park.

B. One-day adventure.

C. Summer adventure holiday.

D. Group day and weekend courses.

23. People who want to take the summer adventure holiday ________.

A. can stay overnight if they want

B. should have basic skills in swimming

C. should have a knowledge of first aid

D. can do any sport they are interested in

B

The British are famous as animal lovers, and in a nation of about 60 million people, there are about 27 million pets! The most popular pets are dogs and cats.

Many British people say that the main reason they have a pet is to keep them company (陪伴他们). According to a recent report, 60% of people who live on their own have a pet as company. A lot of pet owners treat their pet just like one of the family. Many cat owners make holes in their doors so their cats can come and go as they please. Dog owners spend a lot of time walking their dogs.

Another reason to own a pet is for protection, especially dogs. Most thieves would think twice

a bout breaking into a house if they could hear a large dog barking inside. Some people choose their pets because of their beauty. The most beautiful animals can win prizes at pet shows!

In the UK, some pet owners think that nothing is too good for their animal! Some people take their pet to the animal doctor more often than they visit their own doctor. They might even take a day off work to care for a pet when it is sick. Many people talk to their pets, and some talk to them over the telephone. And of course, they mustn’t forget to celebrate the animal’s birthday!

24. According to the passage, the number of the pets in the UK is _______ million.

A. more than 16

B. about 27

C. more than 36

D. about 60

25. The main reason the British have a pet is to _______.

A. win prizes at pet shows

B. protect the houses

C. keep them company

D. go for a walk with them

26. The underlined expression “think twice ” in the passage probably means “______” in Chinese.

A. 竭尽全力

B. 想方设法

C. 念念不忘

D. 三思而行

27. From the last paragraph we know that some pet owners in the UK think their pets are _______.

A. important

B. dangerous

C. successful

D. beautiful

C

In the United States, when one becomes rich, he wants people to know it. And even if he does not become very rich, he wants pe ople to think that he is. That is what “keeping up with the Joneses” is about. It is the story of someone who tried to look as rich as his neighbors.

The expression was first used in 1913 by a young American called Arthur Momand. He told this story about himself. He began earning $125 a week at the age of 23. That was a lot of money in those days. He got married and moved with his wife to a very wealthy neighborhood outside New York City. When he saw that rich people rode horses, Momand went horseback riding every day. When he saw that rich people had servants, Momand and his wife also hired a servant and gave big parties for their new neighbors.

It was like a race, but one could never finish his race because one was always trying to keep up. The race ended for Momand and his wife when they could no longer pay for their new way of life. They moved back to an apartment in New York City.

Momand looked around him and noticed that many people do things just to keep up with rich

lifestyle of their neighbors. He saw the funny side of it and started to write a series of short stories. He called it “Keeping up with the Joneses” because “Jones” is a very common name in the United States. “Keeping up with the Joneses” came to mean keeping up with rich lifestyle of the p eople around you. Momand’s series appeared in different newspapers across the country for over 28 years.

People never seem to get tired of keeping up with the Joneses. And there are “Jonses” in every city of the world. But one must get tired of trying to keep up with the Joneses because no matter what one does, Mr. Jones always seems to be ahead.

28. It can be inferred (推断) from the story that rich people like to _______.

A. live outside New York City

B. live in New York city

C. live in apartments

D. have many neighbors

29. Arthur Momand used the name “Jones” in his series of short stories because “Jones” is _______.

A. an important name

B. a popular name in the United States

C. his neighbor’s name

D. not a good name

30. According to the writer, it is ________ to keep up with the Joneses.

A. correct

B. interesting

C. impossible

D. good

31. What’s the author’s attitude to keeping up with the Joneses?

A. Negative

B. Positive

C. Objective

D. Supportive

D

October 15th is the Global Handwashing Day. Activities are planned in more than 20 countries to get millions of people in the developing world to wash their hands with soap. For example, donors(捐赠者)will give 150,000 bars of soap to schools in Ethiopia.

Experts say people around the world wash their hands every day, but very few use soap at

so-called important moments. These include after using the toilet, after cleaning a baby and before touching food.

Global Handwashing Day is the idea of the Public-Private Partnership for Handwashing with Soap. Partners include the United Nations Children’s Fund, American government agencies, the World Bank and soap makers Unlever and Procter and Gamble. The organizers say all soaps are working well at removing disease-causing germ(细菌). They say the correct way to wash is to wet your hands with a small amount of water and cover them with soap. Rub(揉搓)it into all areas, including under the fingernails(指甲). Rub for at least twenty seconds. Then rinse well under running water. Finally, dry(弄干) your hands with a clean cloth or wave them in the air.

The Partnership for Handwashing says soap is important because it increases the time that people spend in washing hands. Soap also helps to break up the dirt that holds most of the germs. And it usually leaves a pleasant smell. The Partnership for Handwashing also says washing with soap before eating or after using the toilet could save more lives than any vaccine (疫苗)or medicine. Hand washing could also prevent the spread of other diseases. When people get germs on their hands, they can

infect(感染) themselves by touching their eyes, noses or mouths. Then they can infect others.

32. What’s the best title for this passage?

A. Say no to washing hands in the wrong way.

B. Find out why washing hands carefully is so important.

C. Want to live a longer life?--wash you r hands.

D. Hand washing: so important----it gets a day of its own.

33. The word “rinse” in Paragraph 3 probably means ________.

A. to dry your hands

B. to wash away the soap

C. to rub your hands carefully

D. to clean your fingers

34. The last paragraph mainly tells us ________.

A. how to wash your hands correctly

B. why washing hands with soap is so important

C. the dangers of washing hands without soap

D. when we should especially wash our hands with soap

35. In which part of newspaper would you most probably read this passage?

A. Sports events

B. Public service

C. Health report

D. Advertisement

第二节(共5小题,每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填人空白处的最佳选项,选项中有两项为多余选项。

If you have ever done competitive sports, you will know that starting a new season means a lot of hard work and practice. 36 Here are a few ways to make sure that you’re ready for the first day.

37 Schedule specific workout times during the week to help you stick with it. Ask your coach, gym teacher or trainer for some advice before writing your plan. Besides, write down how long you have worked out and what activity you have done.

Ask you r coach if you aren’t sure what you need. New equipment(设备)can be expensive, so think about using some second-hand equipment if it’s available. Brothers, sisters and friends can be great sources of used equipment. 38 You can ask your coach to take a look at it before the first day of practice. If you are a returning player, take out all your equipment, try it on and make sure that it still fits and works.

39 Sports camps can help new and experienced players brush up on skills before the season starts. College players, coaches or other professionals usually teach in the camps. Many schools and colleges offer various sports camps during the summer and on the weekend during the school year.

Your school or team will probably require a physical check before allowing you to participate. Because everyone needs to get checked at the beginning of the season, doctors tend to be busy those times of the year. Therefore, set up an appointment with the doctor earlier. 40

A. Set practical goals.

B. You can also consider a sports camp.

C. Just make sure that it’s very clean and safe to use.

D. It’s also normal to feel a little nervous about starting.

E. Making the team and getting in shape are great goals.

F. Start by writing an exercise plan if yo u don’t have one.

G. That can give the doctor plenty of time to fill out your paperwork.

第三部分:英语知识运用(共两节,满分45分)

第一节完形填空(共20小题,每小题1.5分,满分30分)

The hospital I work in sits on a beautiful mountain. People often have to walk about 40km in order to see a 41 . This is why home-based care comes in. A doctor and several nurses travel out

to 42 sick people. Before I go out, I often buy some 43 for the poor people we will meet as some of them might be hungry. I 44 buy a bag of sweets for the children every time I go out.

One day, I 45 at an orphanage(孤儿院). Inside I saw a beautiful little girl, Tanzile. I gave her a sweet from my bag with a(n) 46 and she asked, “Can I have another one?” I gave her another one and 47 ,“This little darling is so clever—she has taken two for 48 .” But after I asked her some questions, I was 49 . Tanzile is 7 years old. Two years ago, both of her parents 50 in a car accident. Her younger sister who was only three then was taken away by a couple. Ever since then, she has 51 to accept what people give only to her 52 they give her two. In fact, we found many things that she had been 53 to give to her sister one day.

I said to her, “You must54 it if someone gives you food or something else—even if it is only one piece 55 two—for your own health.” It was so56 for me to fight back the tears as she 57

her head. Her hope and 58 were all that she had. They 59 more than anything else.

I hope that Tanzile and the other beautiful children like her will 60 with their brothers and sisters again.

41. A. result B. doctor C. parent D. friend

42. A. help B. surprise C. encourage D. protect

43. A. clothes B. medicine C. food D. water

44. A. hardly B. still C. never D. also

45. A. stopped B. hid C. survived D. danced

46. A. wish B. smile C. plan D. idea

47. A. guessed B. believed C. thought D. imagined

48. A. myself B. yourself C. herself D. themselves

49. A. interested B. pleased C. scared D. surprised

50. A. died B. tried C. fought D. cried

51. A. pretended B. refused C. hoped D. dreamed

52. A. although B. if C. once D. unless

53. A. developing B. choosing C. collecting D. making

54. A. want B. check C. eat D. accept

55. A. more than B. together with C. except for D. instead of

56. A. hard B. sorry C. funny D. strange

57. A. shook B. hit C. touched D. pressed

58. A. honesty B. attitude C. love D. humor

59. A. cared B. mattered C. cost D. earned

60. A. show up B. get along C. get together D. go out

第II卷(非选择题共50分)

第三部分英语知识运用

第二节语法填空(共10小题,每小题1.5分,满分15分)

阅读下面材料,在空白处填入适当的内容(每空不超过3个单词)或括号内单词的正确形式。

It is in your daily life 61 you always get into a situation where your parents control hundreds of things for you when you are a kid, such as the clothes you wear, the food you eat, where you go and whatever can keep you 62 (spellbind). It is a good thing. Kids need this kind of protection and help because they are not old enough to take care of 63 (they) and make decisions 64 (correct). But with you growing older, the part of being a teen is developing your own identity, 65 is different from your parents’. Different attitudes towards events like partying may lead to arguments, because your parents will always 66 (concern) about you and keep you safe, no matter how old you are. As a result, your parents feel 67 hard to get used to the new situation without 68 (know) your latest news. What kids should keep in mind is that in most cases, your parents can understand what you are going 69 because they 70 (be) teens once.

第四部分:写作(共两节,满分35分)

第一节短文改错(共10小题,每小题1分,满分10分)

文中共有10处语言错误,每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。

增加: 在缺词处加一个漏字符号(∧), 并在其下写出该加的词。

删除: 把多余的词用斜线(\)划掉。

修改: 在错的词下划一横线, 并在该词下面写出修改后的词。

注意:1. 每处错误及其修改均仅限一词;

2. 只允许修改10处,多者(从第11处起)不计分。

I am writing to offer my sincerest congratulations your admission into the Biology Department of Wuhan University as a graduation. As your close friend, I just want you to know what lucky I am to be able to share your pride and how pleased I was at your admission.

In my views, you work hard and besides that, you are a very intelligence person. This admission is a reward where you richly deserve. I am sure you will make a greater progress in your study and

have a brightly future in your life.

I wish you greater success in your school career and I am look forward to good news from you soon.

第二节书面表达(满分25分)

假设你是我校高一学生李华,请根据以下提示,给China Daily(中国日报)的编辑(editor)写一封信,呼吁保护文化遗产。内容包括:1. 保护文化遗产势在必行;2. 文化遗产见证历史文化,帮助人们了解过去;3. 应该采取的措施。

注意:1. 词数100左右;2. 可适当增加细节,以使行文连贯。

黉学高中2019-2020学年度上学期12月考(实验班)

高一英语参考答案

听力部分:1-5 CACBA 6-10 ABBCA 11-15 BCCAA 16-20 BBCCB

阅读理解:A) DAB B) BCDA C) ABCA D) DBBC DFCBG

完形填空:41-45BACDA 46-50BCCDA 51-55BDCDD 56-60AACBC

语法填空:

61. that 62. spellbound 63. themselves 64. correctly 65. which 66. be concerned

67. it 68. knowing 69. through 70. were

短文改错:

Dear Henry,

I am writing to offer my sincere congratulations ^ your admission into the English Department of

on

Peking University as a graduation. As your close friend, I just want you to know what lucky I am to be graduate how

able to share your pride and how pleased I was at your admission.

am

In my opinions, you work hard and besides that, you are a very intelligence person. This admission opinion intelligent

is a reward where you richly deserve. I am sure you will make a greater progress in your study and which\ that

have a brightly future in your life.

bright

I wish you greater success in your school career and I am look forward to good news from you soon. looking

Best wishes.

书面表达:(略)Dear editor,

I am Li Hua, a Senior One student. Nowadays, many cultural relics have already been destroyed and hundreds of others are facing the danger of disappearing. We should take actions to protect them.

Cultural relics represent historic cultures. They offer us a great opportunity to learn about what happened in the past and they are the roots of a city or a place. They have survived for a long time and they are usually very rare and valuable.

Firstly, we should pay more attention to the environment pollution. It’s the first step we should take to protect our cultural relics. Secondly, we should enforce our awareness of protecting cultural relics, and advertise the benefits of cultural relic protection. Thirdly, we should encourage people to fight against the acts of damaging cultural relics.

I people more and more people will become concerned about protecting cultural relics.

Yours

Li Hua

中小学信息学程序设计竞赛细则

中小学信息学程序设计竞赛细则 一、竞赛组织 1.由武汉市中小学信息技术创新与实践活动组委会负责全市的竞赛组织工作,竞赛由全市统一命题,各区按全市统一要求负责考务工作。 2.活动分为二个阶段,第一阶段为初赛阶段,竞赛以笔试闭卷形式,按小学组、初中组和高中组三个学段同时进行,由各区具体负责实施。第二阶段为复赛阶段,竞赛以上机形式,按小学组、初中组和高中组三个学段进行。复赛由市统一命题,统一安排考场,地点待定。 二、竞赛的报名和办法 1.报名费每生20元。 2.竞赛报名以区为单位,统一组织学生报名。 3.3月20日(星期五)前各区、系统集中到市教科院信息技术教育中心(6012室)报名,过时不再补报。 4.各区、系统向市报名时,只需按组别和语种、各校报名人数、指导教师姓名等要求填好的初赛报名表,以及缴纳相应的报名费,无须交具体参赛名单。初赛报名表如下: 三、竞赛日期和时间 1.初赛时间:待定 2.复赛时间:待定 四、竞赛形式及试题类型 小学组(LOGO或BASIC)中学组(C或PASCAL) 复赛:全卷满分100分,考试时间小学80分钟、中学120分钟。中学采用的程序设计语言:C和PASCAL。小学采用的程序设计语言:LOGO或BASIC。 竞赛分组:小学组,BASIC、LOGO任选。中学分初中组和高中组,C、PASCAL任选。

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2018高中信息学考题库3

2018高中信息学考题库3

23、某Flash动画的时间轴如图所示,下列表述错误的是() A、该动画有两个图层, B、该动画的持续时间为2秒 C、该动画的帧频为12帧/秒 D、该动画有25帧 24、对多媒体文件进行压缩的主要目的是() A、作品的感染力更强 B、画面更清晰 C、声音更好听 D、存储容量更小 25、小李想要录制一段音频,采用下列采样频率和量化位数,能使该音频质量最高的是() A、44.1kHz , 16bit B、22.05kHz , 8bit C、22.05kHz ,16bit D、44.1kHz , 8bit 26、多媒体学习软件能根据用户答题情况给予相应的反馈,这体现了多媒体技术的() A、非线性 B、传播性 C、交互性 D、继承性 27、下列关于虚拟现实表述错误的是() A、提供视、听、触觉等实时感知 B、借助传感设备可获得更好的沉浸感 C、是一个真实的环境 D、使用户有身临其境的感觉 28、用Photoshop打开“C:\KS\shumu.jpg”,在图片下方添加横排文字“爱护树木,保护环境”,字体为隶书,大小为12点,白色(#FFFFFF);再为文字图层添加“描边”图层样式,大小设为2像素,填充类型为颜色,红色(#FF0000);并以sm.jpg为文件名保存在“C:\KS\”文件夹下。 29、打开C:\KS\shui.fla ,在“文字”图层中,制作一个30帧的形状渐变动画,将文字“珍惜水资源”(大小设为36,颜色为蓝色(#0000FF))形状渐变变成文字“拒绝水污染”(大小设为40,颜色为红色(#FF0000));测试影片,并以原文件名保存。 30、打开C:\ks\ppt\nengyuan.ppt演示文稿,为第二张幻灯片中的“太阳能”文字添加超链接,连接到第三张幻灯片;再讲第四张幻灯片移动到第六张幻灯片之后,使之成为第六张幻灯片,并以原文件名进行保存。

初中物理 安徽省亳州市谯城中学八年级(上)期末物理考试卷参考答案与考试题解析.DOC.docx

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D.我们的欢呼声掌声尖叫声对周边居民不属于噪声 试题4: 下列物态变化中,属于升华现象的是() A.春天,冰封的湖面解冻 B.夏天,利用冰箱制作棒冰 C.深秋,屋顶的瓦上结了一层霜 D.冬天,冰冻的衣服逐渐变干 试题5: 亳州地区一年四季分明,严冬的早晨在窗玻璃上会出现“冰花“.下列说法正确的是() A.冰花主要是水凝固形成的 B.冰花主要是水蒸气凝华形成的 C.冰花主要是水液化形成的 D.冰花出现在窗玻璃外侧 试题6: 一般的物体都有热胀冷缩现象,当物体受热膨胀时,它的密度() A.不变 B.增大 C.减小 D.都有可能 试题7: 某同学用已调节好的托盘天平测量物体的质量,他将物体放入天平,通过增、减砝码后,发现指针指在分度盘中央刻度线的左边一点,这时他应该() A.把横梁右端螺母向右旋出一些 B.把横梁右端螺母向左旋进一些 C.把天平右盘的砝码减少一些 D.向右移动游码 试题8:

亳州企业

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2020-2021学年 安徽省 亳州市 黉学高级中学初中部 第一学期七年级数学第二次 月考(无答案

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A. ?3 B. 0 C. 6 D. 9 9.某车间有26名工人,每人每天可以生产800个螺钉或1000个螺母,1 个螺钉需要配2个螺母,为使每天生产的螺钉和螺母刚好配套.设安排x 名工人生产螺钉,则下面所列方程正确的是() A. 2×1000(26?x)=800x B. 1000(13?x)=800x C. 1000(26?x)=2×800x D. 1000(26?x)=800x 10.下列图形都是由同样大小的圆按照一定规律摆放而成,其中第①个图形 有5个小圆,第②个图形有9个小圆,第③个图形有13个小圆,…,按 此规律排列,则第12个图形中小圆的个数为() A. 45 B. 48 C. 49 D. 50 二、填空题(本大题共4小题,共20.0分) 11.近年来,国家重视精准扶贫,收效显著,据统计约65000000人脱贫, 65000000用科学记数法可表示为______________. 12.若|m+3|+(n?2)2=0,那么m n的值为________. 13.如果方程(m?1)x2|m|?1+2=0是一个关于x的一元一次方程,那么m 的值______________. 14.如图1所示的是从长方形中剪掉一个较小的长方形,使得剩余两端的宽 度相等,用5个这样的图形紧密地拼成如图2所示的图形,则它的长为____________.(结果用含m、n的代数式表示) 三、解答题(本大题共9小题,共90.0分) 15.(8分)计算:?12020+(?2)2×3+16÷(?2);

安徽省亳州市2020版中考数学试卷A卷

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5. (2分)(2018·贺州) 如图,在△ABC中,∠BAC=90°,AD⊥BC,垂足为D,E是边BC的中点,AD=ED=3,则BC的长为() A . 3 B . 3 C . 6 D . 6 6. (2分)二次函数y=(x-1)2+2的最小值是() A . -2 B . 2 C . -1 D . 1 二、填空题 (共8题;共9分) 7. (1分) (2019七上·丹东期末) 随着“一带一路”建设的不断发展,我国已与多个国家建立了经贸合作关系,2017年中哈铁路(中国至哈萨克斯坦)运输量达12800000,将12800000用科学记数法表示为________. 8. (1分) (2019九下·临洮期中) 分解因式:a2b?8ab+16b=________. 9. (1分) (2016七上·嘉兴期中) 试举一例,说明“两个无理数的和仍是无理数”是错误的:________. 10. (2分) (2015九上·黄陂期中) x2﹣6x+(________)=(x﹣________)2 11. (1分)(2018·方城模拟) 如图,在矩形AOBC中,O为坐标原点,OA、OB分别在x轴、y轴上,点B的坐标为(0,3 ),∠ABO=30°,将△ABC沿AB所在直线对折后,点C落在点D处,则点D的坐标为________. 12. (1分)等腰△ABC的底和腰的长恰好是方程x2﹣4x+3=0的两个根,则等腰△ABC的周长为________. 13. (1分)如图,一只蚂蚁沿着边长为2的正方体表面从点A出发,经过3个面爬到点B,如果它运动的路

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