甘肃省静宁县第一中学2020-2021学年高一英语上学期期末考试试题

甘肃省静宁县第一中学2020-2021学年高一英语上学期期末考试试

题

本试卷满分120分，考试时间100分钟

第I卷 (选择题共60分)

第一部分阅读理解（共15小题；每小题2分，满分30分）

Everyday Food

by Martha Stewart

No matter how busy you are, at the end of the day you want meals that are easy to prepare. And you want lots of choices and variations. You'll find all of that in this book: 250 simple recipes for delicious meals that bring freshness and nutrition.

Paperback, published by Random House, $16.79

Zeroes

by Scott Westerfeld, Margo Lanagan, Deborah Biancotti

The New York Times best-selling author Scott Westerfeld teams up with Margo Lanagan and Deborah Biancotti in the book about six teenagers with amazing abilities. These teenagers have powers that set them apart. They can do things ordinary people can't.

Paperback, published by Simon & Schuster, $12.99

Mighty Jack

by Ben Hatke

Jack dislikes summer. But he's got a good reason: summer is when his single mom takes a second job and leaves him at home to watch his sister, Maddy. It's lots of responsibility, and it's boring, too, because Maddy doesn't talk. Ever. But one day, at the market, Maddy does talk—to tell Jack to trade their mom's car for a box of mysterious seeds. It's the best mistake Jack has ever made.

Hardcover, published by First Second, $14.15

Only Daughter

by Anna Snoekstra

She's caught stealing. She's homeless and on the run. But she happens to look the same as a girl who went missing a decade ago, Rebecca Winter. She assumes Rebecca's identity, using it as a way out. Little does she know her new life as Rebecca

is itself a prison and it looks like a killer might be after her.

Kindle edition, published by Harlequin Enterprises, $8.88

1．Who wrote a book to help you cook a meal?

A．Martha Stewart. B．Anna Snoekstra.

C．Ben Hatke. D．Scott Westerfeld.

2．How much should readers pay for a story about a boy's amazing experience?

A．$8.88 B．$12.99 C．$14.15 D．$16.79 3．How is Zeroes different from the rest books?

A．It tells a story. B．It's in paperback.

C．It's quite popular. D．It's a co-written book. 4．What do we know about Only Daughter?

A．Its heroine enjoys her life on the run.

B．Its heroine lives with a false identity.

C．It provides different kinds of editions.

D．It is written by Harlequin Enterprises.

I remember the first time I got on a horse. When I was a little boy aged two, my mom agreed to let me take a short ride and that was it! From then on, I drove my parents crazy begging for a horse.

When I was four, I had mutism, in which children stop speaking in certain social situations. I went days, weeks, months without a sound at school. At most, I might quietly whisper to a friend. I suffered silently through school until I was ten when a psychologist had an idea. He asked me what I wanted more than anything else in the world. He explained I was going to be given an opportunity to work for that. And I was permitted to whisper the answer in my mother's ear, “A horse.”

I was to get a pony, but I had to live up to my end of the bargain. I had a chart of weekly tasks I had to accomplish. I had to answer the phone five times per week, something I had never done before. I had to say one word to my teacher at school and the list went on. For a child with mutism, saying one word to someone can be like climbing Mount Qomolangma. I did everything that was asked of me and the day came. His name was Sequoia, whom I fell in love with immediately. When I was in Sequoia's presence, I forgot all about my problems and felt strong and secure.

I am a fully participating member of society these days. My horse and I made it through a master's degree. I may have made it otherwise, but I'm not sure. I feel

I owe my life to the horse and I try to give it back to him every day. He has given me the best gift I could ever imagine, my life.

5．What was the situation like when the author was four?

A．He didn't say a word at all.

B．He learned how to ride a horse.

C．He found his classmates unfriendly.

D．He had difficulty in communicating.

6．What can we infer about the author from Paragraph 3?

A．He completed some tasks easily.

B．He pushed himself extremely hard.

C．He fell in love with Sequoia gradually.

D．He found the psychologist's idea ineffective.

7.What is the author's purpose of writing the text?

A．To share his unfortunate childhood.

B．To give tips on how to cure mutism.

C．To show his deep gratefulness to his horse.

D．To inspire kids struggling against mutism.

Heritage is our legacy (遗产) from the past, what we live with today, and what we pass on to future generations. Our cultural and natural heritage are both irreplaceable (无可取代的) sources of life and inspiration. Places as unique and diverse as the Pyramids of Egypt, the Great Barrier Reef in Australia and the Great Wall of China make up our world's heritage.

The United Nations Educational, Scientific and Cultural Organization (UNESCO) seeks to encourage the identification, protection and preservation of cultural and natural heritage around the world considered to be of outstanding value to humanity. This is embodied in an international treaty called the Convention Concerning the Protection of the World Cultural and Natural Heritage, adopted by UNESCO in 1972.

How does a place become a World Heritage Site? It takes a lot of people to decide.

1)If a country wants one of its places to be on the World Heritage List, it has to ask UNESCO. The place must be important and special. UNESCO put the Great Wall on the list in 1987 because, it said, it was a great part of Chinese culture and beautifully made to go with the land. When a country asks, it must also make a plan for taking care of the place.

2)The World Heritage Committee of UNESCO talks about different places and decides whether to put them on the list. The committee meets every June. Many experts help the committee to decide.

3)After a new place goes on the list, UNESCO gives money to help keep it looking good. If a place is in serious danger, it may be put on the List of World Heritage Sites in Danger. UNESCO gives special care and help to those places.

4)Countries have to give UNESCO regular reports about places on the list. If UNESCO thinks a country isn't taking good enough care of a place, the site will be taken off the list.

8．What is the main purpose of Paragraph 1?

A．To tell us what is heritage.

B．To stress the importance of heritages.

C．To explain the aims of protecting heritages.

D．To introduce some places of interest in the world.

9．About cultural and natural heritage around the world, UNESCO encourages all the following EXCEPT ________.

A．identification B．application C．protection D．conservation

10．If a place successfully becomes a World Heritage Site, the country ________.

A．can ask UNESCO for more money and help

B．should continue to take special care of it

C．won't take trouble of caring for it

D．will try to put it on the List of World Heritage Sites in Danger

11．The purpose of putting a place on the World Heritage List is ________.

A．to attract more tourists from other countries

B．to get more money and help from other countries

C．to have it taken better care of

D．to make it known to other countries

Every year in America, high-school students who wan t to go on to college take

a national examination called the Scholastic Aptitude Test, or SAT for short. Their score is an important factor in determining which colleges will admit them. The Scholastic Aptitude Test measures one's mathematical ability and use of the English language. Traditionally, the English part involved grammatical questions and

paragraphs that test reading comprehension.

But the SAT folks have added a single question, to be answered in an essay, handwritten on the spot. That's an interesting way to test writing ability, but content aside. Have you ever seen young people's handwriting lately? Or anyone's for that matter, in this age of computer keyboards? Students write numbers and sign their names on bank checks. They scribble class notes in what can generously be described as the written word.

Yet today's kids are asked to write, thoughtfully and clearly, for several minutes on this SAT test. Good luck to the text scorers who must work out difficultly the scrawl (潦草的笔迹) of young people who've been typing on computers since the age of three! Teachers insist that good handwriting can not only help one's score on the SAT, but also, later on in life, impress potential employers. And don't forget, we all have to use handwriting from time to time, as computers go down when the power goes out.

Then how to improve the handwriting? Well, with a few simple steps you can improve your handwriting. Position the pen. You should hold the pen between the forefinger and the thumb. You should then rest it near the first knuckle (指节) of the middle finger. The rest of your fingers should be curled (卷曲) under your hand and your hand should remain relaxed.

Evaluate your writing. What do you like and what don't you like about the way you write? Make changes to your letters till you like how they look.

Take your time. Make sure that, while you are writing, you take your time. Speed can definitely make your writing terrible. If it is worth writing well, then take your time.

Practice. Practice it a lot; it's not enough to do it once and hope for the best. It has to be something you work at to make great improvements.

12．At present, the SAT tests students on ________.

A．math, English, reading and writing

B．math, grammar, reading and handwriting

C．math, foreign language and writing

D．math, foreign language and handwriting

13．The underlined word “scribble” in Paragraph 2 probably means ________.

A．writing quickly and roughly

B．typing simply and correctly

C．painting clearly and neatly

D．describing properly and well

14．According to the text, good handwriting can ________.

A．help students pass the test

B．make a student more popular

C．show students' ability

D．assist students in getting a job

15．The author mainly wants to tell us that ________.

A．writing seems to be very important in the SAT

B．those who will go to college have to take the SAT

C．students should practice handwriting more often

D．kids don't know how to write in the computer age

第二部分完形填空 (共20小题，每小题1.5分, 满分30分)

As a child, I started learning to play the piano, my favorite musical 16 ，but I was forced to give up when I started my middle school 17 I could concentrate more on my studies.

It's one of my biggest 18 to stop practicing the piano when I recall sadly today. During the following years, I kept telling my piano teacher that I would

19 . However, I didn't keep my promise because I was 20 with my study. 21

I lost touch with my teacher. Some years later, my teacher died. I was very sad because

I lost such a good teacher. She was a very warm and gentle person. It hurts me to think she may have been 22 that I never returned. I haven't taken lessons since then but to be honest, I 23 to. Sitting at the piano, I couldn't help recalling many 24 —times of my practising at home and playing before my teacher and one time my teacher 25 me after I played entire pieces of music wrong in front

of her colleagues. I was so 26 that I could hardly say anything. But her 27 helped me ease my shame. These memories, 28 ， good or bad, never caused my 29 for playing the piano again.

This thought then led me to think that 30 is like music, and that we all

try to play different 31 in the instrument of our life. Sometimes the pitch (音高) is 32 when we play it well, but sometimes we are out of tone. However, we all continue to create our own __33__ style of music. No matter what style our music is, it is 34 that we sing the songs of joy, quietness and love. Though

I may never make it back to piano lessons, it doesn't 35 that I've stopped

making music.

16．A .instrument B．Performance C．Room D．stage 17．A .in that B．so that C．now that

D．except that

18．A .successes B．regrets C．Decisions

D．hobbies

19．A .play B．graduate C．leave

D．return

20．A. occupied B．angry C．satisfied

D．patient

21．A. Actually B．Constantly C．Suddenly

D．Gradually

22．A. astonished B．glad C．Disappointed

D．amazed

23．A. liked B．needed C．Wanted

D．decided

24．A. dreams B．Expressions C．Words

D．memories

25． A. instructed B．hurt C．punished

D．respected

26．A. frightened B．Moved C．Embarrassed

D．excited

27．A. happiness B．Satisfaction C．Comfort

D．sigh

28．A. instead B．Meanwhile C．Therefore

D．however

29．A. hope B．Courage C．Feeling

D．effort

30．A. life B．Learning C．Attitude

D．enjoyment

31．A. cards B．sports C．Roles

D．games

32．A. hard B．Wonderful C．Surprising

D．complex

33．A .unique B．Boring C．Common

D．similar

34．A .necessary B．Strange C．Possible

D．important

35．A. matter B．Mean C．Report D．appear

第II卷 (非选择题共60分)

注意：将答案写在答题卡上, 写在本试卷上无效。

第三部分语言知识运用

第一节：根据汉语提示运用所学词汇的正确形式填空,每空只填一个单词。（共15空；每空1分,满分15分）

36．I (真诚地) hope that you recover quickly after the operation.

37．The children's shouts (使……害怕) the birds and they flew away.

38．I won't say any bad words of others behind them－it's against my (原则)．

39．We all have (平等的) chances of working and living in this country.

40．The two presidents had a(n) (非正式的) meeting last week.

41．The Christmas trees (装饰) with colorful lights look really beautiful.

42．Before the (辩论), both sides made their positions clear.

43．It is a custom here for the woman to sit (分开)．

44．The foreigner who had been living here for many years knew the (当地的) custom very well.

45．At the (入口) to the big building, there are a lot of people waiting in line.

46．The People's Republic of China was (成立) on October 1, 1949.

47．There is a lot of (证据) to prove that smoking has a bad effect on our lungs.

48．I don’t doubt that the gold ring (属于) to her.

49．Her heart (沉下去) when she got the news.

50．He can't speak to the (当地人), for he knows little French.

第二节：课文语法填空阅读下面材料, 在空白处填入1个适当的单词或用括号内单词的正确形式（不多于3个单词）填空。（共10空；每空1分,满分10分）

Frederick William Ⅰ，the King of Prussia, could never have imagined that his

第一节：短文改错 (共10处错误; 每处1分,满分10分)

假定英语课上老师要求同桌之间交换修改作文, 请你修改你同桌写的以下短文。短文中共有10处错误,每句中最多有两处。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(∧), 并在此符号下面写出该加的词。

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。

The rest of Elias’ story

You cannot imagine what the name of Robben Island made us afraid. It was a prison from where no one escaped. There I spent the hardest time of my life. But when I get there Nelson Mandela was also there and he helped me. Mr. Mandela began a school for those of us who had few learning. He taught us during the lunch breaks and the evening when we should have been asleep. We read books under our blankets and used anything we could find make candles to see the words. I became a good student. I wanted to study for my degree and I was not allowed to do that. Later, Mr. Mandela allowed the prison guards to join in us. He said they should not be stopped from studying for their degrees. They were not clever than me,but they did pass their exams. So I knew I could get a degree too. That made me feel good about me.

第二节：书面表达（满分25分）

假设你叫李华，你的美国笔友Sara 给你写信，提到自己偏胖，想节食减肥，征求你的意见。

请你给她回一封信，谈谈你对该问题的见解。内容要点如下：

1.健康的重要性

2.学生的任务

3.给Sara的合理的健康减肥建议

要求：1.词数100个左右；

2.文章开头已给出，但不计入总词数。

Dear Sara,

I have received and read your letter, in which you mentioned that you wanted

to lose weight by dieting.

Yours,

Hua

静宁一中2020-2021学年度第一学期高一级第三次考试题

英语答案

阅读理解：1-4 ACDB 5-7 DBC 8-11 ABBC 12-15 BADC

完形填空：16--20 ABBDA 21-25 DCCDA 26-30 CCDBA

31-35 CBADB

词汇填空：36. sincerely 37.frightened 38. principle 39. equal

40. informal 41.decorated 42.debate 43.apart 44. local 45.entrance

46. founded 47. evidence 48.belongs 49. sank 50.native

语法填空：51.greatest 52.amazing 53.for 54.was made 55.In 56.soldiers 57.reception 58.moved 59.stole 60.what

短文改错：1.what改为how 2、where 改为which 3、get改为got 4、few

改为little 5、evening改为evenings

6、find 后加to

7、and 改为but

8、去掉in

9、clever 改为 cleverer 10、最后一句第一个me改为myself

写作答案：

Dear Sara,

I have received and read your letter, in which you mentioned that you wanted

to lose weight by dieting.

It is only natural that young girls at your age hope to look beautiful. However,

in my opinion, health is more important than beauty. If a person has lost his health, whether physically or mentally, chances are that he will be anxious and depressed,

not to mention of aiming to work hard. What’s more, for a student, studying is the

first task to do while appearance is the second, so don’t let others’ opinions

affect your normal life. However, if you want to lose weight, it is a good idea to

do it by taking more exercise and changing unhealthy eating habits. The most important thing is that you keep a healthy state of mind as it will help with your study, and will also help you overcome difficulties in dieting.

I hope my advice will be helpful to you and I’m looking forward to your next letter.

Yours,

Li Hua

高一英语上期末考试试题及答案

高一英语考试试题命题人：斗鸡中学王生龙白云梅第Ⅰ卷第一部分：英语知识运用(共三节，满分85分) 第一节单项填空(共15小题；每小题1分，满分15分) 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。 1. Don’t worry too much about making ____ mistakes. They are _____ natural part of learning. A. /; a B. the; / C. /; the D. the; the 2. Tom was very sick with a bad cough, ______ he could neither eat nor sleep. A. as a result B. after all C. anyway D. otherwise 3. Two thirds of the work ____ done by Jimmy, and ___ was done by Nancy. A. was; the rest B. was; the others C. were; the others D. were; the rest 4. I am his best friend, and I will always _______ him. A. look into B. watch over C. join in D. worry 5. With the great dam ___, we’ll have enough electricity f or everyday use. A. complete B. completed C. to be completed D. to complete 6. I advised that he_____ to the hospital at once, but he insisted that he _____ quite well then. A. was sent; felt B. be sent; feel C. be sent; was feeling D. was sent; felt 7. ---- Have you heard that Tom, as well as his parents, _____ moved to Beijing? ---- Really? No _____ I haven’t seen him for a long time. A. have; doubt B. has; wonder C. have; reason D. has; choice 8. The old man had one son and two daughters, ___ treated him well, ____ made him very sad. A. neither of whom; that B. neither of them; which C. none of whom; which D. none of them; that 9. ----Do you have anything to do this afternoon? ----What’s up? ----Let’s go shopping. It’s said that Yimin Shop ___and all the sweaters are sold at half price. ----Why not? A. has closed down B. was closing down C. closes down D. is closing down 10. －John admitted ____in the exam. －That’s why he was not admit ____the skating club. A. cheating…to B. to cheat…by C. cheating…by D. to cheat…to

2018届甘肃省民乐县第一中学高三压轴卷(一)数学(文)试题

2018届甘肃省民乐县第一中学高三压轴卷（一）数学（文）试题 2018.5.19 姓名_______班级_______考号__________总分一、选择题 1．已知集合{}1M x x =<，{} 20N x x x =-<，则（） A ．M N ? B ．N M ? C ．{ }1 M N x x =< D ．{}0M N x x => 2．设()()()2i 3i 35i x y +-=++（i 为虚数单位），其中x ，y 是实数，则i x y +等于（） A ．5 B C ．D ．2 3．已知数据1x ，2x ，。。。，10x ，2的平均值为2，方差为1，则数据1x ，2x ，。。。，10x 相对于原数据（） A ．一样稳定 B ．变得比较稳定 C ．变得比较不稳定 D ．稳定性不可以判断 4．设函数()()sin cos ,f x x x f x =-的导函数记为()f x '，若()()002f x f x '=，则0tan x =（） A ． -1 B ． 1 3 C. 1 D ．3 5．已知双曲线()22 2210,0x y a b a b -=>> F ，过点F 与x 轴垂直的直线与双曲线的两条渐近线分别交于点M ，N ，若OMN △的面积为20，其中O 是坐标原点，则该双曲线的标准方程为（） A ．22 128x y -= B ．22 148x y -= C ．22 182 x y -= D ．22 184 x y -= 6．某空间几何体的三视图如图所示，则该几何体的体积为（） A ．42π+ B ．26π+ C ．4π+ D ．24π+ 7．执行如下图的程序框图，若输入a 的值为2，则输出S 的值为（） A ．3.2 B ．3.6 C ．3.9 D ．4.9 8．等比数列{}n a 的前n 项和为n S ，公比为q ，若639S S =，则562S =，1a =（）

甘肃省静宁县第一中学《全反射》测试题

甘肃省静宁县第一中学《全反射》测试题一、全反射选择题 1．如图,有一截面是直角三角形的棱镜ABC，∠A=30o.它对红光的折射率为1n.对紫光的折射率为2n.在距AC边d处有一与AC平行的光屏．现有由以上两种色光组成的很细的光束垂直AB边射入棱镜.1v、2v分别为红光、紫光在棱镜中的传播速度,则（） A．两种光一定在AC面发生全反射，不能从AC面射出 B．1221 :: v v n n = C．若两种光都能从AC面射出，在光屏MN上两光点间的距离为21 22 21 22 d n n ?? ? - ? -- ?? D．若两种光都能从AC面射出，在光屏MN上两光点间的距离为21 22 21 44 d n n ?? ? - ? -- ??2．如图所示两细束单色光平行射到同一个三棱镜上，经折射后交于光屏上的同一个点M。则下列说法中正确的是（） A．如果a为蓝色光，则b可能为红色光 B．在该三棱镜中b色光的传播速率比a光的传播速率小 C．棱镜射向空气中a色光的临界角比b色光的临界角大 D．a光的折射率小于b光折射率 3．如图所示，扇形AOB为透明柱状介质的横截面，圆心角∠AOB＝60°，一束平行于角平分线OM的单色光由OA射入介质，经OA折射的光线恰平行于OB，以下对该介质的折射率值及折射光线中恰好射到M点的光线能不能发生全反射的说法正确的是( )

A．3，不能发生全反射B．3，能发生全反射 C．23 3 ，不能发生全反射D． 23 3 ，能发生全反射 4．如图所示，口径较大、充满水的薄壁圆柱形浅玻璃缸底有一发光小球，则（） A．小球必须位于缸底中心才能从侧面看到小球 B．小球所发的光能从水面任何区域射出 C．小球所发的光从水中进入空气后频率变大 D．小球所发的光从水中进入空气后传播速度变大 5．如图所示，三束细光经玻璃三棱镜折射后分解为互相分离的a、b、c三束单色光 .比较a、b、c三束光，可知( ) A．a为波长较长的光 B．当它们在真空中传播时，a光的速度最大 C．分别用这三种光做光源，使用同样的装置进行双缝干涉实验，a光的干涉条纹中相邻亮纹的间距最小 D．若它们都从玻璃射向空气，c光发生全反射的临界角最大 6．如图所示，P、Q是两种透明材料制成的两块直角梯形的棱镜，叠合在一起组成一个长方体。某单色光沿与P的上表面成θ角的方向斜射向P，其折射光线正好垂直通过两棱镜的界面。已知材料的折射率n P

高一英语试题第一学期期末考试试卷

高一英语试题第一学期期末考试试卷 (考试时间：120分钟总分150分) 宝鸡铁一中张洁注意事项： 1、本试卷共分两部分，第Ⅰ卷为选择题，第Ⅱ卷为非选择题。 2、所有试题的答案均填写在答题纸上（选择题部分使用答题卡的学校请将选择题的答案直接填涂到答题卡上），答案写在试卷上的无效。第I卷（选择题共85分）第一节：单项选择（共15小题，每小题1分，满分15分） 1. ------Why didn’t ask the teacher the question? ---------She had left the classroom______ I had time to do it . A. as B. till C. after D. before 2. His pale face suggested he ________angry and he suggested that we ______at once. A. would be; leave B. was; left C. was; leave D. was; was leaving 3. This book _______twelve units, ______two mainly revisions. A.contains; containing B includes; including C contains; including D. includes; containing 4. I have made my decision, and I’m going to _______it A pass by B go through C stick to D insist on 5.Put everything ________to you in your bag, not others. A. belongs B. belonged C. belonging D.tobelong 6.The girl, ________parents are dead, is living with an aunt of hers. A. who B. whom C. her D. whose 7.After a long walk, they were _______tired that they could not move even one step further. A. too B. so C. as D. such 8.With the time ________, our happiness grew. A. goes by B. going by C. has gone by D. had gone by 9. Many of the earth’s plants and animals have already _______, and several other species are endangered. A. died away B. died out C. died down D. died up 10.. Selecting a mobile phone for a personal use is no easy task because technology ____ so rapidly. A. is changing B. will be changed C. will change D. will have changed 11.. Two thirds of the work ____ done by Jimmy, and ___ was done by Nancy. A. was; the rest B. was ;the others C. were; the others D. were ; the rest 12. I am his best friend, and I will always _______ him. A. look into B. watch over C. join in D. worry 13. ----Do you have anything to do this afternoon? ----What’s up? ----Let’s go shopping. It’s said that Yimin Shop ___and all the sweaters are sold at half price.

甘肃省民乐县第一中学2017届高三10月月考地理试题(含答案)

民乐一中2016—2017学年第一学期高三年级诊断考试 _地理_试卷 I卷一．单项选择题（每小题只有一个选项正确，共22小题，每小题2分，共44分。）下图为某地区自然景观分布示意图，以及P、Q两区域的等高线图，读图回答1～3题。 1．下列关于图示地区的叙述正确的是（） A．①②③中最适合发展耕作业的是② B．图示海域可能形成大渔场 C．图中植被分布变化反映了由沿海到内陆的地域分异规律 D．该地位于北半球 2．有关图中P处地貌的叙述正确的是（） A．以流水沉积作用为主，最显著月份7月 B．分布于河流入海口处 C．形成与风力作用相关，最显著月份1月 D．组成物质大小混杂无分选 3．按照“地势平坦、取水方便、无水患洪灾之地建立聚落”的原则，聚落选址在Q地的最佳位置是（） A．甲地 B．乙地 C．丙地 D．丁地下图中XY线为地球自转线速度等值线，PQ为锋面。读图回答4～5题。

4．关于PQ半球位置及其锋面性质的说法，正确的是（） A．北半球冷锋 B．北半球暖锋 C．南半球冷锋 D．南半球暖锋 5．关于PQ锋面雨区位置及移动方向的说法，正确的是（） ①雨区位于PQ西北侧②雨区位于PQ东南侧 ③PQ锋面将向东南移动④PQ锋面将向西北移动 A．①③ B．②③ C．①④ D．②④ 读某地四种不同天气系统过境前后气压变化示意图。读图回答6～7题。 6．关于四种天气系统的判断, 正确的是（） A.甲是暖锋过境 B.乙是高压过境 C.丙是低压过境 D.丁是冷锋过境 7．四种天气系统与其影响下可能出现的天气现象的组合正确的是（） A.甲——台风 B.乙——我国北方夏季的暴雨 C.丙——长江流域的伏旱 D.丁——寒潮下图中甲为某半球P地位置示意图，乙为P地降水量月分配柱状图，丙为月平均气温变化曲线图。读图回答8～9题。 8．P地降水量最多的季节是（）

甘肃省金昌市永昌县第一中学2013-2014学年高一下学期期末考试政治试题(无答案)Word版

第Ⅰ卷选择题（共60分）一、选择题（在每小题列出的四个选项中，只有一项是最符合题意的。每小题1.5分，共60分） 2011年6月20日，全国城镇居民社会养老保险试点工作部署暨新型农村社会养老保险试点经验交流会议在北京召开。国务院总理温家宝出席会议并作重要讲话。据此回答1～2题。 1．温家宝指出，近年来，我们加大工作力度，加快建立覆盖不同人群的社会保障制度，不断提高保障水平。建立城镇居民养老保险制度和新农保制度，是开创性的重大社会保障制度建设，有了这两项新制度，几千年来中国人“老有所养”的愿望，在可预见的未来几年里就能初步实现。这表明() ①随着经济和社会发展，人民的利益日益得到实现②人民民主具有广泛性 ③人民民主具有真实性④国家开始尊重和保障人权 A．①②B．③④C．①③D．②④ 2．温家宝表示，国务院决定在全国范围内启动城镇居民社会养老保险制度试点，并加快新农保试点进度，在本届政府任期内基本实现制度全覆盖。从根本上看，政府加快社会保障制度建设是因为() A．我国是人民民主专政的社会主义国家B．在我国，公民是国家的主人 C．国家尊重和保障人权D．人民当家作主有制度的、法律的和物质的保障 3．从“当官不为民做主，不如回家卖红薯”到“尊重人民主体地位，勿忘人民当家作主，这反映了() ①我国公民的政治权利不断扩大②社会主义民主政治不断进步 ③我国国家性质发生了根本性转变④社会主义民主的本质是人民当家作主 A．②③B．②④C．①③D．①④ 4．2011年10月24日，最高人民检察院和国家保密局联合通报重要涉密经济数据泄露案件查办情况：国家统计局原干部孙振泄露27项统计数据，被判刑5年；中国人民银行原干部伍超明泄露25项统计数据，被判刑6年；另外4名犯罪嫌疑人均为证券行业从业人员，已分别立案侦查。上述案例说明() A．国家长治久安离不开专政B．任何违法行为都会受到刑法的处罚 C．司法机关要坚持依法行政D．宪法和法律是公民享有权利的依据 5．从政治生活角度看，某些官员泄露国家经济数据() ①说明我国公民有言论自由②没有履行严守国家秘密的政治性义务 ③割裂了公民权利与义务的关系④没有坚持个人利益与国家利益相结合的原则 A．①②B．③④C．①②③D．②③④ 6．2011年，中国20多个省区市陆续启动了新一轮县乡基层人大换届选举。某选区投票站悬挂着这样的横幅：“珍惜民主权利，投出理性一票”，对此理解正确的是() A．通过自己选的代表反映意见，可避免做出对自己不利的决定 B．通过赞成或反对审慎表达意见，有利于维护我们的切身利益 C．选举是重要的利益协调机制，发扬民主只能通过选举来实现 D．选民不可放弃自己的投票权，必须参加区县人大代表的选举 7．2011年10月2日，全国人大常委会对《刑事诉讼法》修正案(草案)征求意见结束。根据《刑事诉讼法》规定，公安机关对犯罪嫌疑人的拘押讯问时间一般不超过24小时，严禁刑讯逼供，在被羁押48小时内必须安排被告律师同被告会面。监狱服刑人员在进行必要劳动时，安排适当休息，有劳动安全卫生防护用品，不得侮辱、体罚、打骂服刑人员等。这都表示() ①我国尊重和保障人权②任何公民的合法权利都受到法律保护

甘肃省庆阳市环县第一中学2020-2021学年九年级上学期期末数学试题

甘肃省庆阳市环县第一中学2020-2021学年九年级上学期期末数学试题学校:___________姓名：___________班级：___________考号：___________ 一、单选题 1．方程x2﹣x＝0的解为（） A．x1＝x2＝1 B．x1＝x2＝0 C．x1＝0，x2＝1 D．x1＝1，x2＝﹣1 2．抛物线y=﹣（x﹣1）2﹣2 的顶点坐标是（） A．（1，2）B．（﹣1，﹣2）C．（﹣1，2）D．（1，﹣2） 3．下列图形中，既是轴对称图形又是中心对称图形的是（） A．等边三角形B．平行四边形C．正五边形D．圆 4．将含有30°角的直角三角板OAB如图放置在平面直角坐标系中，OB在x轴上，若OA=2，将三角板绕原点O顺时针旋转75°，则点A的对应点A′的坐标为（） A．，﹣1) B．(1C．) D．() 5．如图，CD是⊙O的直径，已知∠1＝30°，则∠2等于( ) A．30°B．45°C．60°D．70° 6．如图，在⊙O中，已知∠OAB=22.5°，则∠C的度数为（） A．135°B．122.5°C．115.5°D．112.5° 7．如图，△ABC内接于⊙O，AB=BC，∠ABC=120°，AD为⊙O的直径，AD=6，那

么AB 的值为（） A ．3 B ． C ． D ．2 8．二次函数2()y a x m n =++的图象如图，则一次函数y mx n =+的图象经过（） A ．第一、二、三象限 B ．第一、二、四象限 C ．第二、三、四象限 D ．第一、三、四象限 9．下列事件是必然事件的是（） A ．某人体温是100℃ B ．太阳从西边下山 C ．a 2+b 2＝﹣1 D ．购买一张彩票，中奖 10．如图，AB 为⊙O 的直径，点C 在⊙O 上，若50OCA ∠=?，4AB =，则BC 的长为（） A ．103π B ．109π C ．5 9π D ．518 π 11．在△ABC 中，I 是内心，∠BIC=130°，则∠A 的度数是（） A ．40° B ．50° C ．65° D ．80° 12．若函数y ＝(a －1)x 2－4x ＋2a 的图象与x 轴有且只有一个交点，则a 的值为( ). A ．－1或2 B ．－1或1 C ．1或2 D ．－1或2或1 二、填空题

甘肃省静宁县第一中学2020-2021学年高二物理下学期第一次月考试题

甘肃省静宁县第一中学2020-2021学年高二物理下学期第一次月考试题本卷满分110分答题时间100分钟第I卷（选择题）一．选择题（本题共14道小题，每小题4分，共56分。其中1—10题的四个选项中只有一个选项正确，11—14题的四个选项中有两个或两个以上选项正确，全部选对得4分，选对但选不全的得2分，有错选的得0分。） 1．在用α粒子轰击金箔的实验中，卢琴福观察到的α粒子的运动情况是： ( ) A．全部α粒子穿过金箔后仍按原来的方向前进 B．绝大多数α粒子穿过金箔后仍按原来的方向前进，少数发生较大偏转，极少数甚至被弹回 C．少数α粒子穿过金箔后仍按原来的方向前进，绝大多数发生较大偏转，甚至被弹回D．全部α粒子都发生很大偏转 2．在如图所示的匀强磁场中，已经标出了电流I和磁场B以及磁场对电流作用力F三者的方向，其中错误的是（） A．B． C．D． 3．设质子、中子、氘核的质量分别为m1、m2和m3，那么，当一个质子一个中子结合成个氘核时，释放的能量是 ( ) A．m2c2B．(m1+m2)c2 C．(m3-m2-m1)c2 D．(m1+m2--m3)c2 4．氢原子的核外电子从距核较近的轨道跃迁到距核较远的轨道的过程中（）A．电子的动能增大，原子的电势能增大，原子的能量增大 B．电子的动能增大，原子的电势能减小，原子的能量增大 C．电子的动能减小，原子的电势能减小，原子的能量减小 D．电子的动能减小，原子的电势能增大，原子的能量增大 5．下面列出的是一些核反应方程

其中（） A．X是质子，Y是中子，Z是正电子 B．X是正电子，Y是质子，Z是中子 C．X是中子，Y是正电子，Z是质子 D．X是正电子，Y是中子，Z是质子 6．如图所示，E为内阻不能忽略的电源，R1、R2、R3为定值电阻，S0、S为开关，V与A分别为理想电压表与电流表．初始时S0与S均闭合，现将S断开，则 A．V的读数变大，A的读数变小 B．V的读数变大，A的读数变大 C．V的读数变小，A的读数变小 D．V的读数变小，A的读数变大 7．如图所示，直线A为电源的路端电压与总电流关系的图线，直线B为电阻R两端电压与通过该电阻电流关系的图线，用该电源和该电阻组成闭合电路时，电源的输出功率和效率分别是 A．2 W,66.7% B．2 W,33.3% C．4 W,33.3% D．4 W,66.7% 8．如图所示，虚线a、b、c代表电场中的三条电场线，实线为一带负电的粒子仅在电场力作用下通过该区域时的运动轨迹，P、R、Q是这条轨迹上的三点，由此可知 A．带电粒子在P点时的电势能比在Q点时的电势能大 B．带电粒子在P点时的加速度大小小于在Q点时的加速度大小 C．带电粒子在P点时的速度大小大于在Q点时的速度大小 D．带电粒子在R点时的动能与电势能之和比在Q点时的小，比在P点时的大 9．如图所示,一根通电直导线垂直放在磁感应强度为B=1 T的匀强磁场中，在以导线截面的中心为圆心、r为半径的圆周上有a、b、c、d四个点．已知a点的磁感应强度为0，则

高一英语期末考试卷

永登一中2016—2017学年第一学期末考试卷高一英语第I卷第一部分：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 Taj Mahal is considered to be one of the most beautiful building in the world and the finest example of the late style of Indian architecture. It is at Agra in northern India. It lies beside the River Jumna in the middle of gardens with quiet pools. The Taj Mahal was built by the Mogul emperor Shah Jehan, who ruled India in the 17th century. It is in memory of his favorite wife, Arjumand Banu Bagam, known as Mumtaz Mahal, who died in 1631.The building, which was completed between 1632 and 1638, was designed by a local Muslim architect(建筑师) Ustad Ahmad Lahori. The whole building, with gardens and gateway structures, was completed in 1643. The Taj Mahal stands at one end of the garden tomb with marble(大理石) path. The room is softly lighted by the light that passes through double screens of carved marble set high in the walls. The building now is kept in good condition. The Taj Mahal took 23 years to build. Shah Jehan planned a similar building, but in black instead of white, to lie on the other side of the river. But before it could be built, Shan Jehan was imprisoned(监禁) by his son and buried next to his wife in the Taj Mahal. 1. The Taj Mahal was built for_______. A. Mumtaz B. Shah C. Either Mumtaz or Shah D. Both Mumtaz or Shah 2. Why do you think Shah Jehan was buried next to his wife? A. His own tomb hadn’t been built. B. He hoped to be buried there. C. King and Queen should be buried together. D. He liked Mumtaz all his life. 3. The passage mainly tells us _______. A. why the Taj Mahal was built B. the love story between Shah and Mumtaz C. some information about the Taj Mahal D. the Taj Mahal--- the pride of Indians

甘肃省民乐县一中物理静电场及其应用精选测试卷

甘肃省民乐县一中物理静电场及其应用精选测试卷一、第九章静电场及其应用选择题易错题培优（难） 1．如图所示，y轴上固定有两个电荷量相等的带正电的点电荷，且关于坐标原点O对称。某同学利用电场的叠加原理分析在两电荷连线的中垂线（x轴）上必定有两个场强最强的点A、'A，该同学在得到老师的肯定后又在此基础上作了下面的推论，你认为其中正确的是（） A．若两个点电荷的位置不变，但电荷量加倍，则x轴上场强最大的点仍然在A、'A两位置 B．如图(1)，若保持两个点电荷的距离不变、并绕原点O旋转90°后对称的固定在z轴上，则x轴上场强最大的点仍然在A、'A两位置 C．如图(2)，若在yoz平面内固定一个均匀带正电圆环，圆环的圆心在原点O。直径与(1)图两点电荷距离相等，则x轴上场强最大的点仍然在A、'A两位置 D．如图(3)，若在yoz平面内固定一个均匀带正电薄圆板，圆板的圆心在原点O，直径与(1)图两点电荷距离相等，则x轴上场强最大的点仍然在A、'A两位置【答案】ABC 【解析】【分析】【详解】 A．可以将每个点电荷（2q）看作放在同一位置的两个相同的点电荷（q），既然上下两个点电荷（q）的电场在x轴上场强最大的点仍然在A、A＇两位置，两组点电荷叠加起来的合电场在x轴上场强最大的点当然还是在A、A＇两位置，选项A正确； B．由对称性可知，保持两个点电荷的距离不变、并绕原点O旋转90°后对称的固定在z轴上，则x轴上场强最大的点仍然在A、'A两位置，选项B正确； C．由AB可知，在yOz平面内将两点电荷绕O点旋转到任意位置，或者将两点电荷电荷量任意增加同等倍数，在x轴上场强最大的点都在A、A＇两位置，那么把带电圆环等分成一些小段，则关于O点对称的任意两小段的合电场在x轴上场强最大的点仍然还在A、A＇两位置，所有这些小段对称叠加的结果，合电场在x轴上场强最大的点当然还在A、A＇两位置，选项C正确； D．如同C选项，将薄圆板相对O点对称的分割成一些小块，除了最外一圈上关于O点对称的小段间距还是和原来一样外，靠内的对称小块间距都小于原来的值，这些对称小块的合电场在x轴上场强最大的点就不再在A、A＇两位置，则整个圆板的合电场在x轴上场强最大的点当然也就不再在A、A＇两位置，选项D错误。故选ABC。

北师大版数学高二-甘肃省永昌县第一中学高中数学《正态分布》练习

甘肃省永昌县第一中学高中数学《正态分布》练习 (时间：45分钟满分：100分) 一、选择题(每小题7分，共35分) 1．已知三个正态分布密度函数φi(x)＝ 1 2πσi 2 () 2 2 e x i i μ σ - - (x∈R，i＝1,2,3)的图象如图所示，则( ) A．μ1<μ2＝μ3，σ1＝σ2>σ3 B．μ1>μ2＝μ3，σ1＝σ2<σ3 C．μ1＝μ2<μ3，σ1<σ2＝σ3 D．μ1<μ2＝μ3，σ1＝σ2<σ3 2．(2010·广东)已知随机变量X服从正态分布N(3,1)，且 P(2≤X≤4)＝0.682 6，则P(X>4)等于( ) A．0.158 8 B．0.158 7 C．0.158 6 D．0.158 5 3．已知随机变量ξ～N(3,22)，若ξ＝2η＋3，则D(η)等于( ) A．0 B．1 C．2 D．4 4．某市组织一次高三调研考试，考试后统计的数学成绩服从正态分布，其密度函数为φμ， σ(x)＝ 1 2π·10 2 (80) 200 e x--(x∈R)，则下列命题不正确的是( ) A．该市这次考试的数学平均成绩为80分 B．分数在120分以上的人数与分数在60分以下的人数相同 C．分数在110分以上的人数与分数在50分以下的人数相同 D．该市这次考试的数学成绩标准差为10 5．某市进行一次高三教学质量抽样检测，考试后统计的所有考生的数学成绩服从正态分布．已知数学成绩平均分为90分，60分以下的人数占10%，则数学成绩在90分至120分之间的考生人数所占百分比约为( ) A．10% B．20% C．30% D．40% 二、填空题(每小题6分，共24分) 6．随机变量ξ服从正态分布N(1，σ2)，已知P(ξ<0)＝0.3，则P(ξ<2)＝________. 7．已知正态分布总体落在区间(0.2，＋∞)的概率为0.5，那么相应的正态曲线φμ，σ(x)在x＝________时达到最高点． 8．某班有50名学生，一次考试后数学成绩ξ(ξ∈N)服从正态分布N(100,102)，已知P(90≤ξ≤100)＝0.3，估计该班学生数学成绩在110分以上的人数为________．9．在某项测量中，测量结果ξ服从正态分布N(1，σ2)(σ＞0)．若ξ在(0,1)内取值的概率为0.4，则ξ在(0,2)内取值的概率为________．

(高清版)2019年甘肃省庆阳中考语文试卷

语文试卷第1页（共10页）语文试卷第2页（共10页）绝密★启用前甘肃省庆阳市2019年初中学业水平监测与高中招生考试语文本试卷满分为150分，考试时间为150分钟。一、积累与运用（30分） 1.阅读文段，完成（1）—（4）题。（11分）真正疯狂了的艺术家是徐渭。徐渭善诗、书、画、戏剧、军事。他胸怀奇才不得伸展，于是以诗书画来表现胸中“勃然不可磨灭之气”，晚年渐成疯狂。他的内心愤郁和苦痛已经只有在强度的自虐．中得到发泄。袁宏道说他：“晚年诗文益奇。”他的书法，字忽大忽小，忽草忽楷，笔触忽轻忽重，忽干忽湿，时时出人意料，故意的反秩序，反统一，反和谐。在“醉雨巫风”的笔致中显出f èn sh ì j ì s ú的情绪来。草书字之间、行之间，密密麻麻，幅面的空间遮碍得全无盘桓．呼吸的余地，行笔时线条扭曲盘结，li àng qi àng 跌顿，是困兽张皇奔突觅不得出路的乱迹。笔画扭成泥坨、败絮，累成泪滴、血丝，内心的hu áng hu ò与绝望都呈现在这里。徐渭言吾书第一诗次之文次之画又次之。（节选自熊秉明《中国书法理论体系》）（1）请给文段中加点字注音。（2分）自虐________ 盘桓________ （2）请根据拼音将汉字工整地书写在田字格内。 f èn sh ì j ì s ú li àng qi àng hu áng hu ò （3）根据文意，下列书法作品是徐渭的一项是（3分）（） A B C D （4）给文段中的画线句子加标点符号，最恰当的一项是（3分）（） A .徐渭言，“吾书第一，诗次之，文次之，画又次之”。 B .徐渭言：“吾书第一、诗次之、文次之、画又次之。” C .徐渭言，“吾书第一、诗次之、文次之、画又次之”。 D .徐渭言：“吾书第一，诗次之，文次之，画又次之。” 2.依次填入下列横线上的成语，最恰当的一项是（3分）（）世园会北京园里，上演了一场花艺音乐秀，四位歌手化身花艺模特，带来《北京记忆》等歌曲，歌声在胡同里荡漾回旋。花影、树影、云影、风声、水声、曲声，还有鸟语花香，无形之景，有形之景，________，成为世园会里一道别样的风景。相比于________的歌声，歌手身上的配饰更是________，那些配饰不是________的钻石玛瑙，而是与世园会主题________的花艺。 A .此起彼伏高山流水别有用心珠光宝气相辅相成 B .相映成趣高山流水别具匠心花枝招展因地制宜 C .相映成趣耳熟能详别具匠心珠光宝气相辅相成 D .此起彼伏耳熟能详别有用心花枝招展因地制宜 3.下列句子没有语病的一项是（3分）（） A .有大约800年左右历史的巴黎圣母院突发大火，尖塔倒塌，屋顶烧毁，损失惨重。 B .包括中国在内的全球多个天文学家同步公布人类历史上首张黑洞图片让举世震惊。 C .武威文庙是西北地区建筑规模最大、保存最完整的孔庙，也是全国三大孔庙之一。 D .高校自主招生增加体育测试项目，把身体好不好作为“好学生”的重要标准。 4.名著阅读。（5分）（1）根据《西游记》中的相关情节，完成下面对联。（任选一联）（2分）上联：__________孙行者下联：鹰愁洞遇小白龙上联：黑风山里黑熊怪下联：白虎岭________ （2）《西游记》第27回是“尸魔三戏唐三藏，圣僧恨逐美猴王”。在这一回中，圣僧为什么“恨逐美猴王”？（3分） __________________________________________________________________________________________________________________________________________________ 5.古诗文默写。（共8分，每空1分）（1）________________，天涯若比邻。（王勃《送杜少府之任蜀州》）（2）但愿人长久，________________。（苏轼《水调歌头》） ------------- 在--------------------此 -------------------- 卷 --------------------上 -------------------- 答 -------------------- 题 --------------------无 -------------------- 效------------ 毕业学校_____________ 姓名_____________ 准考证号_____________ ____________________________________________________

甘肃省静宁县第一中学2020-2021学年高一数学上学期期中试题文

甘肃省静宁县第一中学2020-2021学年高一数学上学期期中试题文一、选择题(每小题5分,共12小题60分) 1、已知全集,集合,则( ) A. B. C. D. 2、下列函数中,既是偶函数,又在区间上单调递减的函数是( ) A. B. C. D. 3、设函数，则的值为（） A. B. C. D. 4、（文）（） A. B. C. D. 5、已知函数,则的解析式为( ) A. B.() C. D.() 6、已知函数的定义域为,则的定义域为( ) A. B. C. D. 7、已知,,,则,,的大小关系为( ) A. B. C. D. 8、函数的图象是( ) A. B. C. D. 9、已知,分别是定义在上的偶函数和奇函数,且,则 ( )

2 13 1 25.0104 1 )833(81)87(3) 0081.0(- ----? ???? ? +????????-5lg 4log 3log 72g 125lg 3 27log 922log 4 3 7-?++++A.-3 B.-1 C.1 D.3 10、已知函数且满足 , 则实数的取值范围是( ) A. B. C. D. 11、幂函数在上单调递增,则的值为( ) A. B. C. D. 或 12、已知 ,则函数的零点个数为( ) A. B. C. D.,或二、填空题(每小题5分,共4小题20分) 13、函数的定义域为__________. 14、函数且恒过定点的坐标为__________. 15、（文）已知，那么等于__________. 16、下列结论： ①定义在上的函数在区间上是增函数，在区间上也是增函数，则函数在上是增函数； ②若，则函数不是奇函数； ③函数是上的减函数； ④对应法则和值域相同的函数的定义域也相同； ⑤若是二次函数的零点，且，那么一定成立，其中正确结论的序号是__________. 三、解答题 17、（10分）计算:（1）（2）

甘肃省民乐县第一中学2020-2021学年高二上学期期中考试(4部)地理试题 Word版含答案

民乐一中2020—2021学年第一学期高二年级期中考试 _地理_试卷 I卷科幻片《流浪地球》，讲述了科学家们发现太阳急速衰老膨胀，短时间内包括地球在内的整个太阳系都将被太阳所吞没。为了自救，人类提出一个名为“流浪地球”的大胆计划，即倾全球之力在地球表面建造上万座发动机和转向发动机，推动地球离开太阳系，人类暂时转入地下城生活，用2500年的星际流浪，抵达新家园。 1.在电影里有这么一个情节，地球大气被木星吸走一部分，地球有可能撞向木星，除了这些危险，在靠近木星时以下哪个也是地球可能面临的（） A．被小行星等星际物质撞击 B．大气的削弱作用减弱，白天地表温度越来越低 C．木星受地球引力作用，远离轨道，撞向地球 D．地球大气的保温作用减弱，气温日较差越来越小下图表示我国某地某日测试记录的到达地面的太阳辐射日变化，回答下列各题。 2．该日不同时段的天气状况最不可能的是 A．8:00 到 10:00 多云B．12:00 到 14:00 晴 C．14:00 到 16:00 多云 D．18:00 到20:00 晴 3．地面获得太阳辐射的多少与下列哪些要素有关（） ①太阳高度②纬度位置③地势高低④天气状况 A．①B．①②C．①②③D．①②③④地震波在不同媒介中的传播速度是不同的，科学家利用这一原理探究地球内部结构。 4．地震波在地球内部传播时，科学家们发现在距离地面大约2 900千米深处横波速度突然降低为零，纵波速度也突然降低，这说明了（） A．地球内部存在着岩浆B．该深度上下层次的温度变化明显 C．大陆地壳与大洋地壳的厚度不同D．该深度上下层次的物质组成存在很大差异 5．人们在生产活动中还常利用地震波（） A．传递声音信号B．进行地质探矿C．调查农作物虫害情况D．测量山峰的高度开心超人住在（30°N,120°E）。有一天他想拜访住在地球另一端的甜心超人，并决定“遁地”前去，他从家中钻入地底，始终保持直线前进并穿越地心。据此，完成下面小题。