读图甲和图乙,回答下列各题。
16.图甲是“某种农业活动形式的示意图”,该农业活动最可能出现在图乙中的( )
A.a处 B.b处 C.c处 D.d处
17.图乙中b区域是世界三大城市密集区之一,其兴起的主要原因不包括 ( )
A.地形平坦,有利于城市建设
B.水源充足,有利于人类居住
C.水陆交通便利,有利于对外联系
D.阳光灿烂,有利于农业生产
下图是酵母菌细胞呼吸类型的探究装置图,下列现象中能说明酵母菌既进行需氧呼吸,又同时进行厌氧呼吸的是
A.装置1中液滴左移,装置2中液滴不移
B.装置1中液滴左移.装置2中液滴右移
C.装置1中液滴不动,装置2中液滴右移
D.装置1中液滴右移,装置2中液滴左移
一种测定电子比荷的实验装置如图所示。真空玻璃管内,阴极K发出的电子经A、K之间的高压加速后,形成一细束电子流,沿平行板电容器中心轴线进入两极板C、D间的区域。已知极板的长度为l,C、D间的距离为d(d<l),极板区的中心点M到荧光屏中点O的距离为s。若两极板C、D间无电压,电子将打在荧光屏上的O点;若在两极板间加上电压U,则离开极板区域的电子将打在荧光屏上P点,P点到O点距离为Y;若去掉电场,在两板间加上方向垂直于纸面向外、磁感应强度为B的匀强磁场,则电子将打在C板上的Q点,Q点离C板左侧边缘的距离为d。电子重力忽略不计,试求电子的比荷。
I recently traveled to San Francisco for some meetings and found myself with a half day to 36 . My 37 : The 49ers’ first game of the season, against the Green Bay Packers. The America’s Cup sailing races. Or I could get 38 .
After a terribly long line at the car rental center, I was 39 . So I disappeared into the fog and clouds shrouding the Pacific Coast Highway and headed south with absolutely no 40 in mind. I drove through tunnels 41 out of the mountains and stopped at a few state beaches; at one, I watched a wedding out on the cliffs among the crashing 42 . Back in the car, I drove toward San Gregorio, a town that you can easily 43 . I know because I drove right through it and 44 up on a narrow pine tree–bordered asphalt(柏油) road that felt like it would go on 45 .
A few people just moved around outside the San Gregorio General Store, talking about the motorcycles they've owned over the years. Inside, I found a bar with regular customers, two people playing guitar together, and, of course, a full-on store. I 46 a song, took a seat quickly, and watched the guitarists play and dance. Then I congratulated them, 47 a couple of wrinkled dollars in their bucket, and walked back out into the world.
It was pouring outside. We all waited, some patiently, others 48 , because nature messed up their hurried day. I got lost in the sound and sight of the heavens 49 away the dirt and dust of the world. “Mom, let’s run through the 50 .” said a girl. “When you were talking to Daddy about his cancer, you said, if God can get us through this, he can get us through anything!” “Honey, you are 51 right.” Mom said. Then off they ran. And yes, I did. I ran.
The day could have been so 52 : being 53 into a stadium or bar half-watching sports. 54 this was much more rewarding. Hours prior, I was on a flight with the masses, going through the motions. Then I was out on my own, having an unexpected and unrepeatable experience.
I learned something on September 8: Don’t be 55 to get lost—on purpose or otherwise—and have zero expectations. It will be good for you. I promise.
36. | A. waste | B. kill | C. devote | D. spend |
37. | A. series | B. privileges | C. options | D. priorities |
38. | A. started | B. injured | C. lost | D. stuck |
39. | A. free | B. occupied | C. suspicious | D. absorbed |
40. | A. freedom | B. fright | C. conscience | D. destination |
41. | A. carved | B. released | C. standing | D. running |
42. | A. waves | B. crowds | C. vehicles | D. hills |
43. | A. identify | B. miss | C. survive | D. recognize |
44. | A. picked | B. brought | C. ended | D. took |
45. | A. steadily | B. smoothly | C. firmly | D. forever |
46. | A. recorded | B. released | C. ordered | D. composed |
47. | A. broke | B. carried | C. withdrew | D. threw |
48. | A. delighted | B. annoyed | C. calmed | D. inspired |
49. | A. turning | B. washing | C. giving | D. melting |
50. | A. danger | B. dust | C. rain | D. store |
51. | A. somewhat | B. especially | C. somehow | D. absolutely |
52. | A. impressive | B. independent | C. adventurous | D. different |
53. | A. pushed | B. persuaded | C. talked | D. tricked |
54. | A. But | B. Therefore | C. Besides | D. Also |
55. | A. keen | B. afraid | C. curious | D. thoughtful |
下表为我国不同地区2000年粮食生产效率表。回答下面2题。
项目 | 资本投入量 | 人力投入量 | 自然资源效率 | 资本效率 | 人力效率 |
化肥量(千克/公顷) | 劳动力(劳动日/公顷) | 粮食/耕地(千克/公顷) | 粮食/化 | 粮食/劳动日(千克/日) | |
全国平均 | 264.53 | 199.5 | 4377 | 16.55 | 21.94 |
西北省份 | 197.25 | 213.5 | 2833 | 15.75 | 13.86 |
西南省份 | 186.60 | 312.3 | 3979 | 21.44 | 12.69 |
东南省份 | 317.18 | 169.4 | 5665 | 18.61 | 36.56 |
东北和新疆 | 235.65 | 119.4 | 4908 | 21.78 | 42.25 |
17.表中所示生产成本中劳动费用最高的是
A.西北省份 B.西南省份 C.东南省份 D.东北和新疆
18.东北和新疆的人力投入量最低,人力效率最高,反映出
A.农业生产落后 B.劳动力科技素质高
C.机械化水平高 D.气候条件优越
My 12-year-old daughter,Lauren,came home from school yesterday.She 41 waved her grade book to me.She had been 42 A-1 in most subjects such as mathematics,language arts and science—a great 43 ! Then she sadly pointed out that her perfect score was damaged by a B-1 in 44 and a C-1 in Playsical Education.
I asked her what the scores 45 .She said that the 46 showed the achievement and the number showed the effort.That moment I 47 that the grades were misleading.I reached out my hands and gave her a big 48 and told her in my mind she had a perfect score.It didn’t 49 that her grade in French was a“B”—“l” 50 that she had tried her best.That is something to make any parent proud.
Everybody is 51 .Everybody has different potential.Not all of us will become scientists or sports 52 .But without 100%effort no 53 can be achieved.If I see a salesperson fail at sales,the 54 thing I want to examine is the effort being put in.If there is a problem with 55,the salesperson has no future.But if I see a salesperson isn’t 56 with l00%effort,he or she is worth my effort in helping.Maybe a bit of training or some 57 from a more successful person will 58.
I know that 100%effort,focus in the right direction,will always bring a 59 whether that is an“A”or a“C”.As long as you make 100%effort,you are 60 .
41.A.seriously B.patiently C.cautiously D.proudly
42.A.handed B.awarded C.sent D.promised
43.A.favor B.relief C.1esson D.achievement
44.A.Politics B.English C.French D.Science
45.A.needed B.attracted C.affected D.meant
46.A.score B.1etter C.figure D.word
47.A.realized B.checked C.recognized D.remembered
48.A.hug B.shake C.kiss D.smile
49.A.bother B.work C.matter D.suffer
50.A.said B.showed C.warned D.included
51.A.energetic B.independent C.different D.curious
52.A.trainers B.salesmen C.fans D.stars
53.A.safety B.principle C.experience D.potential
54.A.1ast B.first C.best D.1atest
55.A.ambition B.confidence C.effort D.attitude
56.A.cheerful B.careful C.successful D.hopeful
57.A.advice B.money C.expectation D.protection
58.A.help B.decide C.appear D.match
59.A.competition B.result C.task D.choice
60.A.great B.diligent C.famous D.Reliable
如图表示动物干细胞进行的一系列生理过程,请据图回答问题:
(1)图中表示一个完整细胞周期的是 (填数字标号).
(2)③过程表示 ,其实质是 .
(3)科学家采用同位素标记法研究D细胞分泌蛋白的形成过程,他们将3H标记的 注射到细胞内,发现带有3H的物质依次出现在 等细胞器中.
(4)细胞膜能将分泌物从细胞内排出细胞外,体现了细胞膜的哪一功能?
(5)若将D细胞内各种细胞器分开,常用的方法是 .
(6)请写出细胞膜的功能: 、 、 .
已知,数列
的前
项和为
,数列
的通项公式为
,则
的最小值为 .
“口红效应”是指每当经济不景气时,人们就会转向购买廉价的消费品,而口红虽非生活必需品,却兼具廉价和粉饰的作用,能给消费者带来心理慰藉。所以,口红的销量反而会直线上升。形成这种现象的主要原因是( )
A.收入水平 B.消费偏好 C.物价水平 D.消费结构
下图表示某种蝴蝶纯合亲本杂交产生的1355只F2代的性状。以下分析正确的是
A.翅色和眼色基因均位于常染色体
B.翅色和眼色的遗传都遵循分离定律
C.亲本的表现型一定是紫翅绿眼和黄翅白眼
D.翅色和眼色基因的遗传符合自由组合定律
增加:在缺词处加一个漏词符号(∧),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次。
2.只允许修改10处,多者(从第11处起)不计分。
Dear Sir or Madam,
I have heard the news which you are recruiting volunteers for the Winter Olympic Games to
be held in 2022. So I am writing to apply to be one of the volunteers.
I am Li Hua, a 18-year-old boy who is built up by doing sports regularly in my spare time. I
loved sports so much that I can devote all my energies to serve the game. However, with a very
good command of English, I can speak the language fluent, which makes me more qualified to help foreigners. Meanwhile, not only do I have the ability to organize activity, but also I am outgoing and energetic, which is benefits me in communicating with strangers. Everything taking into account, I think I am a good fit for the position. I would appreciate if you could consider my
application and offer me the opportunity at your convenience.
Looking forward to your reply.
Yours Li Hua
Dean refused to join in the game, ______ we all did our best to persuade him.
A. even though B. only if C. in case D. now that
甲乙两种小分子物质在细胞内外的浓度情况如图所示,在进行跨膜运输时,下列说法正确的是()
A. 甲进入细胞一定需要能量
B. 甲运出细胞一定有载体蛋白的参与
C. 乙进入细胞一定不需要能量
D. 乙运出细胞一定有载体蛋白的参与
读某农产品主要生产国家及输出路线图,完成9~10题。
9.该农产品最有可能是
A.稻米 B.牛肉 C.玉米 D.咖啡
10.该农产品生产地域所属的农业地域类型是
A.热带种植园农业 B.水稻种植业 C.大牧场放牧业 D.商品谷物农业
物块A1、A2、B1、B2的质量均为m,A1、A2用刚性轻杆连接,B1、B2用轻质弹簧连接,两个装置都放在水平的支托物上,处于平衡状态,如图所示,今突然迅速地撤去支托物,让物块下落,在除去支托物的瞬间,A1、A2受到的合力分别为FA1和FA2,B1、B2受到的合力分别为FB1和FB2,则( )
A.FA1=0,FA2=2mg,FB1=0,FB2=2mg
B.FA1=mg,FA2=mg,FB1=0,FB2=2mg
C.FA1=0,FA2=2mg,FB1=mg,FB2=mg
D.FA1=mg,FA2=2mg,FB1=mg,FB2=mg
贤臣、清官、天使都是人们对于理想执政者的称谓。阅读下列材料,回答问题。
材料一 墨子认为,治国者“国有贤良之士众,则国家之治厚;贤良之士寡,则国家之治薄”。诸葛亮在文章中写道:“亲贤臣,远小人,此先汉之所以兴隆也;亲小人,远贤臣,此后汉之所以倾颓也”……朱元璋对礼部臣僚们说:“为天下者,譬如作大厦,大厦非一木所成,必聚才而后成,天下非一人独理,必选贤而后治。故为国得宝不如举贤”。
一一摘自《中国古代廉政建设经验》
(1)材料一中,三位历史人物之见解的共同点是什么?(2分)结合所学知识,从思想、政治两方面简析我国古代社会造就“贤臣”的历史条件。 (2分)
材料二 宋代著名清官包拯、元代高官耶律楚材和杨朵儿只,明代清官况钟、海瑞,也都有类似的境遇,在皇帝支持时,成绩斐然;而一旦失去皇帝支持,就遭到排斥,甚至被罢官坐狱。
一一《清官考辩》
(2)概括材料二反映的历史现象,并指出造成这一现象的历史根源。(4分)
材料三 封建阶级的‘清官’,他们的‘清’,就‘清’在政治上忠于皇帝,忠于朝廷,忠于封建的法律制度,在思想上遵守封建的纲常道德,在经济上于合法剥削之外不贪或少贪非分之财,如此而已。作为封建阶级专政工具的官吏,他们在阶级斗争的实践中是属于剥削者、压迫者的阵营,而同被剥削、被压迫的农民相对立的。这是一条不容混淆的基本的阶级界限。
一一摘自《<海瑞罢官>代表一种什么社会思潮》〈人民日报》1965年12月29日)
(3)材料三是用什么方法评价历史上“清官”现象的?(2分)指出这种评价方法的缺陷。
(2分)
材料四 美国1 787年宪法的奠基人麦迪逊曾说:如果是天使统治人,就不需要对政府有任何外来的或内在的控刺了。
(4)结合所学知识指出,为了对政府进行“控制”,启蒙思想家提出了什么构想?(2分)
这些构想对近代中国政治变革进程产生了怎样的影响?(2分)
That holiday morning I didn't have to attend school. Usually,on holidays,Mother 41 me to sleep in.And I would certainly take full advantage of it.On this particular morning, 42 ,I felt like getting up early.
I stood by my window overlooking the 43 having nothing better to do.But as it turned out,I was soon to learn about something 44 in life.
As I watched several people go by,get into their cars and go off,I 45 an old man on a bicycle with a bucket on its 46 and a basket of rags and bottles on its back-carriage.He 47 from one car to another,washing and cleaning them.From the water on the ground,it seemed that he had already 48 washing and cleaning about a dozen or more cars.He must have begun to work quite early in the morning.
Several thoughts 49 my mind as I watched him work.He wasn’t well-dressed. He had on a pair of shorts and a(n) 50 T-shirt.The bicycle he rode was not by any means the kind modern 51 would want to be seen riding on.But he seemed 52 with life.There he was,working hard at his small business,53 at passers-by and stopping to chat now and then 54 elderly men and women on their way to the market nearby.
There was a noticeable touch of 55 in the way he seemed to be doing things 56 the windscreen(挡风玻璃),then standing back to admire it;scrubbing(擦净)the wheels and 57 , standing back to see what they look like after the scrub.
It was a 58 to learn,I felt.At no age need one have to beg for a 59 if one has good health and is willing to work hard.For a while I felt 60 of myself.Young as I am just sixteen,and there was this old man who must have been usefully engaged perhaps before the sun appeared above the horizon.
41.A.allows B.forces C.causes D.forbids
42.A.otherwise B.however C.therefore D.besides
43.A.bus stop B.parking lot C.school D.market
44.A.useful B.surprising C.awful D.interesting
45.A.called B.recognized C.noticed D.assisted
46.A.handle B.back C.wheel D.seat
47.A.searched B.1eft C.wandered D.moved
48.A.stopped B.finished C.intended D.started
49.A.disturbed B.slipped C.crossed D.inspired
50.A.simple B.shiny C.attractive D.expensive
51.A.repairmen B.cyclists C.drivers D.businessmen
52.A.content B.busy C.careful D.bored
53.A.1aughing B.1ooking C.waving D.pointing
54.A.about B.for C.1ike D.with
55.A.worry B.pride C.sympathy D.respect
56.A.fixing B.cleaning C.replacing D.covering
57.A.still B.again C.yet D.soon
58.A.1esson B.subject C.skill D.fact
59.A.business B.success C.1iving D.right
60.A.ashamed B.doubtful C.fearful D.tired
25 ℃时,某溶液中只含有Na+、H+、OH-、A-四种离子。下列说法正确的是( )
A.对于该溶液一定存在:pH≥7
B.在c(OH-)>c(H+)的溶液中不可能存在:c(Na+)>c(OH-)>c(A-)>c(H+)
C.若溶液中c(A-)=c(Na+),则溶液一定呈中性
D.若溶质为NaA,则溶液中一定存在: c(Na+)>c(A-)>c(OH-)>c(H+)