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2020年山西省中考英语真题分类专题汇编: 完型填空(教师版)

2020年山西省中考英语真题分类专题汇编: 完型填空(教师版)
2020年山西省中考英语真题分类专题汇编: 完型填空(教师版)

专题03 完型填空

2019

七、完形填空

请阅读下面短文,理解其大意,然后从每小题所给的A、B、C三个选项中,找出一个能填入空白处的最佳选项,并在答题卡上将该项涂黑。

Grass is, of course a plant which grows in the field; a plant which some kinds of animals like to eat. When there has been plenty of ___16___, the grass is green. When the weather has been dry, the grass is brown. Animals like to eat grass when it is___17___and fresh. And if the grass in one place is greener than the rest, animals___18___to eat that grass. An animal in a field may look over the fence(篱笆) into the next field, where perhaps there are no animals and grass in the field____19____greener. But if the animal could get into the field, it would find that the grass is really the same. It just seems better from a distance(远处). So that's the____20____of the expres sion “The grass is greener on the other side of the fence.”

We sometimes only say “The grass is___21___greener on the other side.” We use the expression to describe the situation --- someone looks at distant things and feels they are better than the things around him. But___22___he could go to the distant place, he would find that life there is just as difficult. So don't always think that other people have a better situation. Just be___23___with what you have had. Enjoy and value it!

16. A. rain B. snow C. sunlight

17. A. green B. brown C. yellow

18. A. refuse B. prefer C. agree

19. A. smells B. tastes C. looks

20. A. form B. meaning C. advice

21. A. seldom B. sometimes C. always

22. A. when B. because C. unless

23. A. angry B. strict C. happy

16.

【答案】A

【解析】句意:当那里有充足的雨水时,草会更绿。考查名词辨析,rain 雨水,snow 雪,sunlight 阳光。根据下句话When the weather has been dry, the grass is brown.“气候干燥时,草会是棕黄色的”,故与此相对,应该是“雨水充足时”,故应选A。

17.

【答案】A

【解析】句意:动物们喜欢吃绿色新鲜的草。考查形容词辨析,green 绿色的,brown 棕色的,yellow 黄色的。根据下句话And if the grass in one place is greener than the rest, animals___3___to eat that grass.可知,动物们喜欢吃绿色的草。故应选A。

18.

【答案】B

【解析】句意:如果一个地方的草更绿,动物会更喜欢吃那里的草。考查动词辨析,refuse 拒绝,prefer 更喜欢,agree 同意。根据第2小题的注释和句意可知,如果草更绿,更新鲜,动物们就会更喜欢吃。故应选B。

19.

【答案】C

【解析】句意:田野里的动物可以越过篱笆望向另一片田野,那里没有动物,田野里的草也看起来更绿。考查动词辨析,smells 闻起来,tastes 尝起来,looks 看起来。根据句意“草的颜色应该是看到的”,故应选C。

20.

【答案】B

【解析】句意:所以这就是那句俗语的意思。考查名词辨析,form 形式,meaning 意思,advice 建议。根据上文An animal in a field may look over the fence(篱笆) into the next field, where perhaps there are no animals and grass in the field____4____greener.But if the animal could get into the field, it would find that the grass is really the same. It just seems better from a distance 可知,动物们从篱笆这边望向那边,觉得那边的草更绿,而当他们真的到了那边时,会发现其实一样绿。这几句话解释了“这山望着那山高”这句话俗语的意思,故应选B。

21.

【答案】C

【解析】句意:别的地方的草总是看起来更绿。考查副词辨析,seldom 很少,sometimes 有时, always 总是。根据上文提到的这个俗语“The grass is greener on the other side of the fence.”可知,那边的草总是比这边的草更绿。故应选C。

22.

【答案】A

【解析】句意:但当他能走到远处的草地时,他会发现,那边的生活也不好过。考查连词辨析,when 当...时,because 因为,unless 除非。根据句意可知,这里应表示“当…时候,他会发现…”,故用when引导时间状语从句,选A。

23.

【答案】C

【解析】句意:知足常乐。考查形容词辨析,angry 生气的,strict 严厉的,happy 开心的。根据上下文So don't always think that other people have a better situation…. Enjoy and value it!可知,作者告诉我们不要老想着别人的情况更好,要享受并且珍惜现在拥有的,知足常乐。故应选C。

2018

七、完形填空(每小题1分,共10分)

请阅读下列短文,理解其大意,然后从每小题所给的A、B、C三个选项中,选出一个能填入空白处的最佳选项,并在答题卡上将该项涂黑。

I know a Catherine who is smart, educated and interesting. But I avoid her because she

never 36 complaining

(抱怨) ! For years, I fought against my feelings, because I really like and admire her, but I’ve found I just can’t be her friend. Her world is 37 “buts…”. The trip would have been nice, but the drive was too long. The food was good, but the light of the restaurant was too 38 . The hotel was too hot, the bed hurt her back and the room service was too slow. Her complaints were 39 changing me. Months ago, my best friend Daisy was listening to me complaining about Catherine 40 she just became

really angry. “Either break up with her, or leave me alone.”She shouted at me, “I’m tired of listening to your complaining.”Her honesty surprised me, and I began to keep myself away from Catherine. Later, I

did 41 her.

Now I try to remain happy and positive (积极的) about life, and find friends of the same. There’s been scientific research lately. It shows that people who find 42 to be thankful for their lives are actually happier, and I believe that is true. Endless complaining seems to control your life if you let it come into your brain. And too much complaining will actually make your life 43 .

Some people take “gratitude (感激之情) walks”every day, where they 44 their lives in a positive way. By

developing a grateful attitude, you can be turned away from what’s troubling you, and

45 what makes you happy. Then you will have a beautiful life.

( ) 36. A. keeps B. stops C. enjoys

( ) 37. A. full of B. far from C. famous for

( ) 38. A. noisy B. strong C. dirty

( ) 39. A. hardly B. suddenly C. silently

( ) 40. A. until B. because C. unless

( ) 41. A. choose B. help C. forget

( ) 42. A. reasons B. excuses C. questions

( ) 43. A. busier B. longer C. worse

( ) 44. A. give away B. depend on C. think about

( ) 45. A. against B. toward C. through

36.

【答案】B

【解析】选项A. keeps 保持;B. stops 停止;C. enjoys 享受。根据上文的“But I avoid her because

she neve r”得知,她从来没有停止抱怨,故选B。

37.

【答案】A

【解析】选项A. full of 装满;B. far from 远离;C. famous for 闻名。根据后文中多个“bu t”可

知,看她的话中是充满了“buts…”,故选A。

38.

【答案】B

【解析】选项A. noisy 嘈杂的;B. strong 强烈的;C. dirty 脏的。由句意结合语境可知餐厅的灯光是强烈的。故选B。

39.

【答案】C

【解析】选项 A. hardly 几乎不;B. suddenly 突然地;C. silently 静静地。根据前文得知起初我喜欢和羡慕Catherine,而由于Catherine的抱怨,她的抱怨静静地改变了我。故选C。

40.

【答案】A

【解析】选项A. until 直到;B. because 因为;C. unless 除非。由句意可知我的好朋友Daisy在听着我抱怨关于Catherine,直到她生气,故选A。

41.

【答案】C

【解析】选项A. choose 选择;B. help 帮助;C. forget 忘记。由上文中的“b reak up with her”与她断绝关系,“I began to keep myself away from Catheri ne.”我开始让自己远离Catherine, 可知之后我确实忘记了她,故选C。

42.

【答案】A

【解析】选项 A. reasons 理由;B. excuses 借口;C. questions 问题。由前文“There’s been scientific research lately.”以及本句句意可知是发现原因,故选A。

43.

【答案】C

【解析】选项A. busier 更忙碌的;B. longer 更长的;C. worse 更糟糕的。由前文的对比可知太多的抱怨真的会使你的生活更糟糕,故选C。

44.

【答案】C

【解析】选项A. give away 捐赠;B. depend on 取决于,依靠;C. think about 考虑。根据句意可知,他们以一种积极的方式考虑生活。故选C。

45.

【答案】B

【解析】选项A. against 靠,倚;B. toward 向,朝,接近;C. through 通过。由句意可知通过培养感激的态度,你能够远离烦恼,接近快乐。故选B。

2017

六、完形填空(共10分)

24.(10分)阅读下列短文,掌握其大意,然后从每小题所给的A、B、C三个选项中,选出一个最佳选项,并在答题卡上将

该项涂黑.

Maxime and Lise are a young French couple.They are ready to travel across China from Beijing to Yunnan Province on a tandem bicycle (双人自行车).They have two main purposes and one of them is that they want to encourage green (36) through it.

Maxime,26,works helping farmers raise their cows,(37) his wife Lise,26,is a teacher.The two also like sharing their travel stories on Facebook.

"We choose a tandem bicycle because it makes it (38) to communicate with each other about interesting people and things we come across during the journey.(39),bicycling is healthier.And it's a cheaper and more environment﹣friendly way of traveling than (40)cars,motors and so on,"the couple said.

As for the other (41) of their journey,the two said they wanted to get people's good ideas on topics such as health,economy (经济) and politics.When they were asked (42) they chose to visit China,they said it was because they often talked about its long history and beauty and how much of the country is competitive (有竞争力的) in the world.

"We know China is a country with a large population and will be the (43) of the economy around the world in the future.We want to get a better understanding of the country and its people.We (44) the country,"they said.

The couple will be on their journey to China soon.We hope they can make more people further (45)China by sharing what they see and hear on the way.Meanwhile,we hope they enjoy their travel in China.

36.A.food B.farming C.travel

37.A.while B.though C.because

38.A.busier B.easier C.earlier

39.A.Besides B.Instead C.However

40.A.buying B.using C.making

41.A.order B.result C.purpose

42.A.how B.why C.when

43.A.leader B.player C.learner

44.A.need B.miss C.love

45.A.dream about B.hear about C.know about.

36.

【答案】C

【解析】考查名词.A.food食物;B.farming农场;C.travel旅行,由句子They are ready to travel across China from Beijing to Yunnan Province on a tandem bicycle (双人自行车).可知他们准备骑双人自行车从中国北京市到云南省作穿越旅行.可知答案为C.

37.

【答案】A

【解析】考查连词.A.while当…时 B.though虽然 C.because 因为.由句子Maxime,26,works helping farmers raise their cows,和his wife Lise,26,is a teacher.可知,这两个句子是并列成分,因此用while,来连接两个并列成分.故答案为A.

38.

【答案】B

【解析】考查形容词比较级.A.busier 更忙的…B.easier 更容易的…C.earlier更早的…根据to communicate with each other about interesting people在可知旅途中碰到的有趣的人和事,互相交流起来会更容易.故答案为B.

39.

【答案】A

【解析】考查连词.A.Besides 另外 B.Instead 相反的 C.However然而.空格前面的句子"We choose a tandem bicycle because it makes it easier to communicate with each other about interesting people and things we come across during the journey."我们选择骑双人自行车是因为更便于我们互相交流在

旅途中碰到的有趣的人和事.空格后句子bicycling is healthier.骑自行车更健康,这前后是一种递进关系,进一步说明.故答案为A.

40.

【答案】B

【解析】考查动名词.A.buying买 B.using 用.C Making制造.根据句意理解,And it's a cheaper and more environment﹣friendly way of traveling than (40)…cars,motors and so on,"另外,骑自行车更健康,跟使用汽车、摩托车比起来更便宜和环保.应该是使用汽车,摩托车.故答案为B

41.

【答案】C

【解析】考查名词.A.order B.result C.purpose.前面句子They have two main purposes他们有两个目标.As for the other (41)…of their journey至于另外一个…,可知都说的是目标.故答案为C

42.

【答案】B

【解析】考查副词.A.how 如何的 B.why为什么 C.when 什么时间.句子they said it was because…他们说这是因为…because回答why引导的疑问句.故答案为B.

43.

【答案】A

【解析】考查名词.A.leader 领导者 B.player运动员 C.learner学习者.根据句意"We know China is a country with a large population and will be the (43)…of the economy around the world in the future中国人口众多,将在未来是世界经济的…联系常识可知中国将要领导世界经济.即世界经济的领导者.故答案为A.

44.

【答案】C

【解析】考查动词.A.need 需要B.miss想念 C.love爱.根据句子We want to get a better understanding of the country and its people.我们想更多地了解这个国家和人民.可推出夫妻俩是热爱中国的.故选C.

45.

【答案】C

【解析】考查动词短语.A.dream about梦到关于…B.hear about听说 C.know about了解关于…后

面句子by sharing what they see and hear on the way.通过分享在路上的所见所闻,可推测是想让更

多的人了解中国.故答案为C.

2016

Ⅵ. 完形填空(每小题1分,共10分)

阅读下面短文,掌握其大意,然后从每小题所给的A、B、C三个选项中,选出一个最佳选项,并在答

题卡上将该项涂黑。

The world needs love and many people need our help. Several years ago, my teachers asked me

to take part in a program that helps those who are 31 . Each week, I spend an hour in

the classroom helping with schoolwork, art project, games and other 32 , including eating.

My mother is a teacher, so I am used to helping children; however, I found that working with children with special needs would 33 my life forever.

At first, I thought it would be 34 to be with the children who are so different, but gradually I found there’s something special about these students. So there was no need to worry about it. Each Thursday I was welcomed by the smiling faces of Thomas, Joey and Missy. Thomas

has to sit on the wheelchair. He communicates with simple words 35 yes or no. Joey, a deaf girl, always welcomed me with a big smile. Missy was born with a kind of 36 and

it makes her really small for her age. In a normal classroom, it would be common to hear a teacher comfort a child who is tapping his pencil, speaking 37 , or making unnecessary noises. However, here, shouts, cries, and other noises are 38 . They’re signs of excitement and different ways of communicating.

Working with children with special needs has changed my life. It has made me 39 others’ needs. One of my teachers believes that we should be part of something bigger t han 40 . I never realized how true this was until I worked with these children. I believe everyone should get out and do something that makes a difference.

31. A. uneducated B. homeless C. disabled

32. A. courses B. competitions C. activities

33. A. change B. waste C. save

34. A. nervous B. relaxing C. lively

35. A. except B. like C. against

36. A. ability B. illness C. habit

37. A. clearly B. politely C. loudly

38. A. mentioned B. stopped C. encouraged

39. A. refuse B. notice C. influence

40. A. ourselves B. yourselves C. themselves

31.

【答案】C

【解析】考查形容词词义辨析。几年前,我的老师让我去参加一个帮助残疾人的项目。文章有多处提示,如首段最后一句children with special needs,第二段第四行Thomas has to sit on the wheelchair等,都说明是去帮助残疾的孩子。故选C。

32.

【答案】C

【解析】考查名词词义辨析。每周在教室里用一小时的时间帮助孩子们作业、美术、游戏和其他活动,包活吃饭。作业、美术、游戏、吃饭是包含在生活、学习各领域的不同活动,所以选择activities。A课程,B比赛,均不符合。故选C。

33.

【答案】A

【解析】考查动词词义辨析。我发现和这些有着特殊需求的孩子们在一起会永远地改变我的生活。根据文章末段第一句Working with children with special needs has changed my life,很好地验证了这里要用change。B浪费,C拯救,均不符合。故选A。

34.

【答案】A

【解析】考查形容词词义辨析。一开始,我以为跟这样不同的孩子在一起会紧张。根据第二段第二行没有必要去担心这一点,说明”我”一开始是担心和紧张的。B轻松的,C活跃的,均不符合。故选A。

35.

【答案】B

【解析】考查介词词义辨析。他用简单的单词来交流,比如是和不是。A除了,C与…相反,均不符合。故选B。

36.

【答案】B

【解析】考查名词词义辨析。Missy天生就有一种疾病,使得她在她的年纪看来特别小。A能力,C习惯,均不符合。故选B。

37.

【答案】C

【解析】考查副词词义辨析。在一个正常的教室里,敲笔、讲话大声、制造没有必要的噪音,是要被老师批评的。这里有三个并列的动词短语,故选speaking loudly. A清楚地,B礼貌地,均不符合。故选C。

38.

【答案】C

【解析】考查动词词义辨析。然而,在这里,喊叫、哭闹和其他的噪音是被鼓励的,他们是活跃的标志和交流的方式。A提及,B阻止,均不符合。故选C。

39.

【答案】B

【解析】考查动词词义辨析。跟有特殊需求的孩子们在一起工作已经改变了我的生活。它使得我注意到了他人的需求。A拒绝,C影响,均不符合。故选B。

40.

【答案】A

【解析】考查反身代词。我的一个老师认为我们应该成为比我们本身更大的一部分。反身代词需要和主语保持一致,该句主语是we,所以反身代词应为ourselves, B你们自己,C他们自己,均不符合。故选A。

2015

Ⅲ. 完形填空(每小题1分,共15分)

阅读下列短文,掌握其大意,然后从每小题所给的A、B、C三个选项中,选出一个最佳选项,并在答题卡上将

该项涂黑。

Yesterday was Father’s Day. Many things happening between my father and me crowed my mind. But one thing made a deep impression on me.

It was a Sunday morning, and I was in a ___31___ mood(情绪). Two of my friends had gone to the movies the night before and hadn’t invited me. I was in my room ___32___ ways to make them sorry when my father came in. “Want to go for a ride today, Beck? It’s a beautiful day.”

“No! Leave me alone!” Those were the ___33___ words I said to him that morning.

My friends called and ___34___ me to go to the mall with them a few hours later. I forgot to be ___35___ with them and then went with them. When I came home, I found a ___36___ on the table. My mother put it where I wou ld be sure to see it. “Dad has had an ___37___. Please meet us at Highland Park Hospital.”

When I reached the hospital, my mother came out and told me a car hit my father and his injuries were extensive(大面积的). “Your father told the driver to leave ___38___ alone and just call 911, thank God! If he had moved Daddy, ....”

My mother may have said more, but I didn’t hear. I didn’t hear anything ___39___ those terrible words: Leave me alone. My dad said them in order to ___40___ himself. He didn’t want to be hurt more. How much had I hurt him ___41___ I shouted out those words at him earlier in the day?

It was several days later that he was ___42___ able to have a talk. I held his hand gently, afraid of hurting him. “Daddy... I am so sorry...”

“It’s okay, sweetheart. I’ll be okay.”

“No,” I said,” I mean about ___43___ I said to you that day. You know, that morning?”

He looked at me and said, “Sweetheart, I remember ___44___ about that day, not before, during or after the accident. I remember telling you good night the night before, though.” he managed a weak smile.

My English teacher once told me that words have great power. They can hurt or they can heal (治愈). And we all have the power to ___45___ our words. I am going to do that very carefully from now on.

31. A. good B. terrible C. peaceful

32. A. thinking up B. giving up C. looking up

33. A. common B. last C. careless

34. A. led B. encouraged C. invited

35. A. strict B. angry C. pleased

36. A. letter B. diary C. note

37. A. accident B. illness C. examination

38. A. me B. him C. her

39. A. except B. among C. towards

40. A. hide B. save C. express

41. A. when B. until C. before

42. A. really B. finally C. suddenly

43. A. how B. why C. what

44. A. something B. everything C. nothing

45. A. keep B. choose C. understand

31.

【答案】B

【解析】根据下文朋友没有邀请她与向父亲发火的情节,可知作者心情不好。

32.

【答案】A

【解析】根据前后文,可知作者在想出让朋友们感到抱歉的方法。

33.

【答案】B

【解析】根据下文情节,可知这是作者这天早上向父亲说的最后一句话。34.

【答案】C

【解析】根据上文情节,可知朋友们这次是来邀请她。

35.

【答案】B

【解析】根据上文情节,可知作者此时已经忘记了生气。

36.

【答案】C

【解析】根据下文文字篇幅,可知这是一条便签。

37.

【答案】A

【解析】根据下段作者母亲对事件的解释,可知这是一场车祸。

38.

【答案】B

【解析】根据前半句Your father told the driver to...,可知此空填him。

39.

【答案】A

【解析】根据前一句My mother may have said more, but I didn’t hear,可知作者除了这些可怕的话,其他什么都没听到。

40.

【答案】B

【解析】由前文thank God! If he had moved Daddy, ....与后文He didn’t want to be hurt more.中的

被动语态,可知作者父亲是为了救自己。

41.

【答案】A

【解析】根据上文情节及所在空的意思“当我喊出那些话的时候,是有多么的伤害他”,可知此

空选when。

42.

【答案】B

【解析】根据作者愧疚恐慌的心情,可知父亲是终于能够说话了。

43.

【答案】C

【解析】根据上文情节,可知作者指之前说过的话,用代词what。

44.

【答案】C

【解析】根据后一句话,可知事故当天的事情父亲全都记不得了。

45.

【答案】B

【解析】结合 words have great power. They can hurt or they can heal.,可知我们有选择话语的力量。

2021中考英语超全试题分类汇编(含解析)

(2020最新模拟江苏省宿迁市 A) 根据句意及所给中文提 示或英文解释,写出句中所缺单词。每小题1分) 46. My neighbours are very ▲ (友好的) to us. 47. Do you ▲ (同意) with what I say? 48. We had a very cold ▲ (冬季) last year. 49. Are you ▲ (有空的) this evening? 50. I can’t ▲ (买得起) to go to the 2020最新 模拟 World Cup. 51. The tourists had no c ▲ but to wait for the next bus. 52. Tom is a ▲ (a good sense of humour) boy, so everyone likes him. 【答案】46.friendly 47.agree 48.winter 49.free 50.afford 51.choice 52.humo(u)rous (2020最新模拟.江苏省无锡市.B根据句意和汉语注释,在 答题卡标有题号的横线上,写出单词的正确形式,每小题1 分) 6.Sometimes ______________(深厚的) feelings are hard to put into words. 7.Mr Wang was busy,but he_____________ (坚持) on seeing me off at the airport. 8.Will you join us in the _____________(讨论)about the teenage problems.

2019中考物理试题分类汇编

2019中考物理试题分类汇编

一.选择题(共10小题) 1.(2018?天津)中国选手张湘祥在奥运会上获得男子举重62kg级冠军,挺举成绩是176kg,图为他比赛时的照片。他在挺举过程中对杠铃做的功最接近() A.600J B.1200J C.1800J D.3400J 【分析】根据G=mg求出杠铃的重力,估测出举高的高度,根据W=Gh求出对杠铃做的功。 【解答】解:杠铃的重力: G=mg=176kg×10N/kg=1760N, 张湘祥的身高约为1.60m; 在挺举过程中把杠铃举高的高度为张湘祥的身高加上0.4m,即: h=1.60m+0.4=2.0m, 在挺举过程中对杠铃做的功: W=Gh=1760N×2.0m=3520J。 故选:D。 2.(2018?长沙)下列关于功的说法正确的是() A.小明用力推发生故障的汽车而未推动时,推力对汽车做了功 B.吊车吊着重物沿水平方向匀速运动一段距离时,吊车的拉力对重物做了功 C.足球在水平地面上滚动一段距离时,重力对足球做了功 D.举重运动员从地面将杠铃举起的过程中,举重运动员对杠铃做了功 【分析】做功的两个必要因素:作用在物体上的力;物体在力的方向上通过的距离(即力和距离的方向要一致);二者缺一不可。 【解答】解:A、用力推发生故障的汽车而未推动时,只有力没有距离;故推力对汽车没有做功;故A 错误; B、吊车吊着重物沿水平方向匀速运动一段距离时,拉力方向竖直向上,移动距离的方向水平向前;两个方向相互垂直,故吊车的拉力对重物没有做功;故B错误;

C、足球在水平地面上滚动一段距离时,移动距离的方向水平向前,重力的方向竖直向下;两个方向相互垂直,故重力对足球没有做功;故C错误; D、运动员从地面将杠铃举起的过程中,力的方向竖直向上,移动距离的方向也竖直向上,两个方向一致;故举重运动员对杠铃做功;故D正确; 故选:D。 3.(2018?盐城)小明将掉在地面上的物理书捡起来放在课桌上,他对课本所做功最接近于()A.0.02J B.0.2J C.2J D.20J 【分析】首先估测物理课本的质量,然后计算它的重力,然后再估测课桌的高度,最后根据功的公式计算即可。 【解答】解:一本物理课本的质量m=200g=0.2kg, G=mg=0.2kg×10N/kg=2N, 课桌高度约为1m, 人对课本做的功:W=Gh=2N×1m=2J。 故选:C。 4.(2018?广州)如图所示,OQ是水平地面,物体在水平拉力作用下从O匀速直线运动到Q,OP段拉力F1为300N,F1做的功为W1,功率为P1;PQ段拉力F2为200N,F2做的功为W2,功率为P2.则() A.W1>W2 B.W1<W2 C.P1>P2 D.P1<P2 【分析】(1)根据W=Fs分别计算F1和F2所做的功,然后比较即可; (2)根据P= = =Fv分析比较F1和F2所做的功的功率的大小。 【解答】解: (1)由图知,OP段的路程s1=4m,PQ段的路程s2=6m, OP段拉力F1做的功为:W1=F1s1=300N×4m=1200J,

历年中考真题分类汇编(数学)

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A.0.6×1013元B.60×1011元 C.6×1012元D.6×1013元 解析6万亿=60 000×100 000 000=6×104×108=6×1012,故选C.答案 C 6.(2015·江苏南京,5,2分)估计5-1 2介于() A.0.4与0.5之间B.0.5与0.6之间C.0.6与0.7之间D.0.7与0.8之间解析∵5≈2.236,∴5-1≈1.236, ∴5-1 2≈0.618,∴ 5-1 2介于0.6与0.7之间. 答案 C 7.(2015·浙江杭州,2,3分)下列计算正确的是() A.23+26=29B.23-26=2-3 C.26×23=29D.26÷23=22 解析只有“同底数的幂相乘,底数不变,指数相加”,“同底数幂相除,底数不变,指数相减”,故选C. 答案 C 8.★(2015·浙江杭州,6,3分)若k<90<k+1(k是整数),则k=() A.6 B.7 C.8 D.9 解析∵81<90<100,∴9<90<100.∴k=9. 答案 D 9.(2015·浙江金华,6,3分)如图,数轴上的A,B,C,D四点中,与表示数-3的点最接近的是 () A.点A B.点B C.点C D.点D

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2020中考物理试题分类汇编-力

力 (09广州).原子的中心是原子核,周围有电子绕核运动,图1是四种原子的结构示意图。由图中信息可知 A.质子、电子所带的电荷不等 B.所有原子的中子数都与质子数相等 C.中性原子的电子数与质子数相等 D.所有原子都由电子、质子、中子组成 答案:C (09成都).关于微观粒子,下列说法正确的是 A.原子结构与西瓜很相似,西瓜籽就如同分布在原子中的电子 B.原子结构与太阳系很相似,质子、中子和电子就象行星绕太阳运动一样在绕核运动 C.原子核由质子和中子组成,质子和中子则由更小的粒子组成 D.只要视力足够好,人们凭肉眼就能看到电子 答案:C (09南昌).如图1所示,其中与其它三个力所产生的作用效果不同的是 A.运动员对弓弦的拉力B.汽车对地面的压力C.斧头对木柴的力D.下落小球受到的重力

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置时,他自身受到的重力方向是 。 答案:汽车(或自己、驾驶员等) 竖直向下 (09重庆) 11.一个美丽的氢气球吊着重物在空中缓缓上升,如图7所示。 (1)在上升过程中,若以气球为参照物,重物是 的(选填“静止”或“运动”); (2)请你在图7中作出被提升的重物所受重力的示意图。 答案:静止 重力的示意图略 (09重庆)19.2020年4月29日,创下多项世界第一的重庆朝天门长江大桥正式通行(如图15)。大桥主桥长932m ,全桥永久用钢达到国内创纪录的4.6×107kg (1)大桥永久用钢受重力多大?(取g=l0N /kg) (2)如果从桥上人行通道过桥的路人步行速度约为1.2 m /s ,他通过主桥所用时间为多少? (结果保留整数) 答案:解:(1)大桥永久性用钢所受的重力 G=mg=4.6×107kg ×10N/kg=4.6N (3分) (2)行人通过主桥所用的时间;t=)773(777/2.1932s s s m m v s 或== (3)分, (09福州市).下列实例中,为了增大摩擦的是 A .拉杆旅行箱底部装有轮子 B .鞋底刻有凹凸不平的花纹 C .向自行车的转轴处加润滑油 D .在气垫船底和水之间形成一层空气垫 答案:B

“锐角三角函数”中考试题分类汇编(含答案)

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4.(2009·湖州中考)如图,在Rt ABC △中,ACB ∠=Rt ∠,1BC =,2AB =,则下列结论正确的是( ) A .sin 2A = B .1tan 2A = C .cos 2 B = D .tan B = 【解析】选D 在直角三角形ABC 中,1BC =,2AB =,所以AC 所以1 sin 2 A = , cos A ,tan A = ;sin B 1cos 2B = ,tan B = 5.(2008·温州中考)如图,在Rt ABC △中,CD 是斜边AB 上的中线,已知2CD =, 3AC =,则sin B 的值是( ) A . 2 3 B . 32 C . 34 D . 43 【解析】选C.由CD 是Rt ABC △斜边AB 上的中线,得AB=2CD=4.∴sin B 4 3 == AB AC 6.(2007·泰安中考)如图,在ABC △中,90ACB ∠= ,CD AB ⊥于D ,若AC = AB =tan BCD ∠的值为( ) (A (B )2 (C )3 (D ) 3 答案:B A C B D

中考英语真题分类汇编 翻译句子

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