下面是小编为大家收集的小升初英语数词专项练习题,本文共7篇,仅供参考,欢迎大家阅读,希望可以帮助到有需要的朋友。

篇1:小升初英语数词专项练习题
关于小升初英语数词专项练习题推荐
1. I‘ve read ______ sports news about the F1 race today.
A. two B. pieces C. two pieces D. two pieces of
2. During World War II, a Jewish(犹太)lady was protected by a local family in Shanghai in her ______.
A. fifties B. fifty C. fiftieth D. the fiftieth
3. The river through our city, which is about _________, is clean again.
A. 6000 meters long B. 6000-metres-long
C. 6000-metre-long D. 6000 meter long
4. I study in Yu Cai Middle School. There are two ____students in our school.
A. thousand B. thousands C. thousand of D. thousands of
5. They said they would have holiday.
A. a two-month B. two months C. two-months D. two-month’s
6.-When was the PLA founded?
-It was founded on ____.
A. July 1. 1921 B. October 1.1949
C. May 1.1922 D. August 1.1927
7. In the past two years, many tall buildings have been built in our city. The tallest is an that stands in the centre.
A. 80-floor building B. 60-floor building
C. 80-floor buildings D. 70 floors building
8.The number of people invited ____ fifty, but a number of them _____absent for different reasons.
A. were ; was B. was ; was C. was ; were D. were ; were
9.- How soon will you finish your work? -In about _______.
A. one and a half month B. one month and a half
C. one and half a month D. a month and half
10.-Would you like some fruit, madam? -Oh, yes. _______, please.
A. 5 kilo bananas B. 5 kilos of bananas
C. 5 kilo of bananas D. 5 kilos of banana
篇2:小升初英语专项练习题
小升初英语专项练习题
一、按照要求改写句子
1. He speaks English very well.(改为否定句)
___________________________________________________
2. She is always a good student.(改为一般疑问句,作否定回答)
________________________________________________________
3. Simon and Daniel like going skating.(改为否定句)
___________________________________________________
4. Amy likes playing computer games.(改为一般疑问句,作否定回答)
___________________________________________________
5. We go to school every morning.(改为否定句)
_______________________________________________________
二、用括号内动词的适当形式填空。
1. Mike _______(like) cooking.
2. They _______(have) the same hobby.
3. My aunt _______(look) after her baby carefully.
4. You always _______(do) your homework well.
篇3:小升初英语语法数词专项讲解
小升初英语语法数词专项讲解
表示数目多少或顺序多少的词叫数词,数词分为基数词和序数词。表示数目多少的数词叫基数词;表示顺序的数词叫序数词。
一、基数词
1)基数词写法和读法:345 three hundred and forty-five;
2)基数词一般是单数形式,但下列情况,常用复数:
a. 与of 短语连用,表示概数,不能与具体数目连 用,如scores of people 指许多人;
b. 在一些表示“一排”或“一组”的词组里;
如:They arrived in twos and threes. 他们三三两两的到达了。
c. 表示“几十岁”;
d. 表示“年代”,用 in +the +数词复数;
e. 在乘法运算的一种表示法里,如:3 x 5 = 15 Three fives is (are) fifteen.
二、序数词
序数词的缩写形式: first---1st second---2nd thirty-first---31st
三、数词的用法
1)倍数表示法
a. 主语+谓语+倍数(或分数)+ as + adj. + as
I have three times as many as you. 我有你三倍那么多。
b. 主语+谓语+倍数(分数)+ the size (amount,length…) of…
The earth is 49 times the size of the moon. 地球是月球的49倍。
c. 主语+谓语+倍数(分数)+ 形容词(副词)比较级+ than…
The grain output is 8 percent higher this year than that of last year.
今年比去年粮食产量增加8%。
d. 还可以用by+倍数,表示增加多少倍
The production of grain has been increased by four times this year.
今年粮食产量增加了4倍。
2)分数表示法
构成:基数词代表分子,序数词代表分母。分子大于1时,分子的序数词用单数,分母序数词用复数:
1/3 one-third ; 3/37 three and three-sevenths.
英语语法经典例题800例:非谓语动词(例题1)
【导语】英语语法让很多学生都头疼,因为复杂难懂的句式和词组有时难以记忆。为大家整理了英语语法大全,希望对同学们的英语语法学习有所帮助。更多内容尽在。
1. Everyone in our class was working hard and doing what we could _______ a good college.
A. enter B. to enter
C. entering D. entered
【陷阱】容易误选A。有的同学一看到空格前的情态动词 could 就断定此处应填动词原形 enter。
【分析】其实正确答案应是B。此句为省略句,即在 could 后省略了动词 do,若把句子补完整应为Everyone in our class was working hard and doing what we could do to enter a good college。即句中的不定式短语(to enter a good college)是用作目的状语的,而不是与情态动词(could)一起构成谓语。请再看类似例句:
(1) They did what they could to comfort her. 他们尽量安慰她。
(2) They did everything they could to save her life. 他们尽一切力量拯救她的性命。
(3) He studies as hard as he could to catch up with his classmates. 他拼命学习以便赶上他的同学。
值得指出的是,这也并不是说今后只要遇到类似结构的题就一定选带to不定式。请看以下试题:
(4) He ran as fast as he could _____ to catch the early bus.
A. to hope B. hope
C. hoping D. hoped
此题的答案是 C不是A,其中的现在分词短语 hoping to catch the early bus 用作伴随状语。
(5) He spent every minute he could _____ spoken English.
A. practise B. to practise
C. practising D. practised
此题答案选 C,这与前面动词 spent 的搭配有关,即 spend … (in) doing sth。若将此句补充完整,即为 He spent every minute he could spend in practising spoken English.
(6) Before going abroad he devoted all he could ____D____ his oral English.
A. improve B. to improve
C. improving D. to improving
此题答案选D,注意两点:一是 devote … to … 是固定搭配,意为“把……贡献给……”;二是其中的 to 是介词,不是不定式符号,后接动词时要用动名词。
2. He knows nothing about it, so he can’t help _______ any of your work.
A. doing B. to do
C. being doing D. to be done
【陷阱】容易误选B,根据 can’t help doing sth 这一结构推出。
【分析】其实答案应选A。比较以下结构:
can’t help to do sth = 不能帮助做某事
can’t help doing sth = 禁不住做某事,情不自禁地做某事
又如下面一题,答案也是 B:
She can’t help ____ the house because she’s busy making a cake.
A cleaning B. to clean
C. cleaned D. being cleaned
再请看以下试题:
While shopping, people sometimes can’t help _____ into buying something they don’t really need.
A. to persuade B. persuading
C. being persuaded D. be persuaded
此题应选C,句中的 can’t help 意为“禁不住”(注意根据句意用被动形式)。
3. All her time _______ experiments, she has no time for films.
A. devoted to do B. devoted to doing
C. devoting to doing D. is devoted to doing
【陷阱】几个干扰项均有可能误选。
【分析】此题最佳答案为B。现分析如下:
(1) devote 意为“致力于,献身于”,主要用 devote…to…或be devoted to,其中的to 是介词,不是不定式符号,故后接动词时要用动名词,不用不定式。
(2) 选A错误:若将 do 改为 doing 则可以。
(3) 选B正确:all her time devoted to doing experiments为独立主格结构,用作状语。
(4) 选C错误:因为all her time 与 devote 为被动关系,故应将devoting改为devoted。
(5) 选D错误:若单独看 All her time is devoted to doing experiments,此句并没有错,但问题是逗号前后两个简单句没有必要的连接方式,所以从整体上看仍不对,假若在后一句的句首加上and或so,则可选D,或将D将中的is 改为 being也可选它。
英语语法经典例题800例:虚拟语气(例题)
【导语】英语语法让很多学生都头疼,因为复杂难懂的句式和词组有时难以记忆。为大家整理了英语语法大全,希望对同学们的英语语法学习有所帮助。更多内容尽在。
1. I forget where I read the article, or I _____ it to you now.
A. will show B. would show
C. am going to show D. am showing
【陷阱】几个干扰项均有可能误选。
【分析】正确答案选B。根据上文的语境可知句中的 or 隐含有一个虚拟的条件,即 or=if I didn’t forget where I read the article(要是我没忘记我在哪儿读过这篇文章的话――但事实上忘了)。
2. “It looks as if he were drunk.” “So it does. _____.”
A. He’d better give up drinking
B. He shouldn’t have drunk so much
C. Health is more important than drink
D. I wonder why he is always doing so
【陷阱】几个干扰项均有可能误选,主要是受句中 drunk 一词的影响。
【分析】最佳答案为D。关键信息是It looks as if he were drunk 中的虚拟语气,句子既然用了虚拟语气,也就是说,“他喝醉了”不是事实,只是他的言行好像是醉了,所以此题的最佳答案是D。
3. “Mary looks hot and dry” “So _____ you if you had so high a fever.”
A. do B. are
C. will D. would
【陷阱】容易误选A或C。选A者,认为前后两句的动词性质应一致;选C者,认为其后带有if 条件状语从句,从语气上看,主句应用将来时态。
【分析】此题最佳答案为D。分析如下:
(1) “so + 助动词 + 主语”是一个很有用的结构,它表示“……也一样”时。如:
He likes to watch TV, and so do I. 他喜欢看电视,我也一样。
When animals and plants disappear, so will man. 当动植物消失的时候,人类也会随之消失。
(2) 由于空格后的 if 条件状语从句的谓语用的是虚拟语气(这是很重要的信息),所以主句要用 would 而不用 will,即答案应选D。
英语语法经典例题800例:强调句(例题)
【导语】英语语法让很多学生都头疼,因为复杂难懂的句式和词组有时难以记忆。为大家整理了英语语法大全,希望对同学们的英语语法学习有所帮助。更多内容尽在。
1. ____ that caused him to serve dinner an hour later than usual.
A. It was we being late B. It was our being late
C. It was we were too late D. It was because we were late
【陷阱】此题容易误选D,认为强调的是原因状语从句 because we were late。
【分析】但实际上,此题的答案为B,强调的是句子主语 our being late,此题若还原成非强调句,即为:
Our being late caused him to serve dinner an hour later than usual.
注意,强调句的一个显著特点是,若去掉强调结构 it is [was]… that…,句子仍然成立;换句话说,该结构中的 that 不能充当句子成分。
2. “How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”
A. it that B. he that
C. it when D. he which
【陷阱】几个干扰项均可能误选。
【分析】答案选A,为强调句的特殊疑问句形式,其相应的陈述句形式为:
It was totally by chance that they discovered the entrance to the underground palace.
比较以下各题,它们也属强调句的特殊疑问句形式:
(1) Who was it _____ saved the drowning girl?
A. since B. as C. that D. he
答案选C,被强调成分为 who,该句实为类似 It was Tom that saved the drowning girl. 这类强调句的特殊疑问句形式(即对其中的Tom 提问而得)。
(2) What is it _____ his daughter needs most?
A. what B. which C. that D. if
答案选C,被强调成分为 what,该句实为类似 It is a bike that his daughter needs most. 这类强调句的特殊疑问句形式(即对其中的a bike 提问而得)。
3. _____ was very ______ that little Jim wrote the letter.
A. It, careful B. It, carefully
C. He, careful D. He, carefully
【陷阱】几个干扰项均有可能误选,但最有可能误选的可能是A,认为这是一个普通的系表结构,即认为第二空要填形容词作表语。
【分析】其实,此题是一个强调句,其非强调形式为 Little Jim wrote the letter very carefully. 若用 it is … that… 的强调句式强调其中的状语 very carefully 即为上面一题的题干,所以答案应选B。请看下面几例,也属强调结构:
(1) It was when she was about to go to bed ______ the telephone rang.
A. since B. as C. that D. then
答案选C,被强调成分为 when she was about to go to bed 这一时间状语从句。
(2) It may have been at Christmas _____ John gave Mary a handbag.
A. before B. who C. that D. when
答案选C,被强调成分为 at Christmas,其中的动词 be 采用了 may have been 这一较为复杂的'形式。
4. “Where did you find the professor who made the speech yesterday?” “It was in the hall ______ the students
often have a meeting.”
A. where B. which
C. that D. when
【陷阱】很可能误选C,认为这是一个强调句,强调地点状语 in the hall。
【分析】假若选C,即有 It was in the hall that the students often have a meeting,该句的意思是“学生们通常是在
大厅开会”,单独看这一句,无论是其意思还是其语法均未错,但若将其与上文联系起来看,则不通,因为上文的意思是“你是在
哪儿找到昨天作报告的那位教授的?”假若将答句改为 It was in the hall that I found the professor,则完全可以。
其实,此题的最佳答案是A,where the students often have a meeting 为定语从句,用以修饰其前的名词 the hall,句意
为“是在学生们经常开会的那个大厅(找到教授的)”,这样语意就通顺了。
5. It was what he meant rather than what he said ______ annoyed me.
A. which B. as
C. what D. that
【陷阱】几个干扰项均有可能误选。
【分析】此题为一个强调句型,空格处应填 that (即选D),被强调成分为 what he meant rather than what he said。句意
为“让我生气的不是他说的话,而是他话中的意思”。请再看两例:
(1) It was his nervousness in the interview ______ probably lost him the job.
A. which B. since C. that D. what
答案选C,为强调句型,被强调成分为 his nervousness in the interview,句意为“很可能是面试时表现出紧张,使他失去
了这份工作”。
(2) It is the ability to do the job ______ matters not where you come from or what you are.
A. one B. that C. what D. it
答案选B,为强调句型,被强调成分为 the ability to do the job,句意为“重要的是你做工作的能力,而不是你来自何地
或你是从事什么工作的”。
英语语法大全经典例题800例:名词性从句(例题)
【导语】英语语法让很多学生都头疼,因为复杂难懂的句式和词组有时难以记忆。为大家整理了英语语法大全,希望对同学们的英语语法学习有所帮助。更多内容尽在。
◆典型陷阱题分析◆
1. She was so angry and spoke so fast that none of us understood _______ he said meant.
A. that B. what
C. that that D. what what
【陷阱】可能误选B。许多同学一看选项首先就排除了C和D,认为这样两个“引导词”叠用的情况不太可能。在A和B两个选项中,选项A肯定不行,因为它引导宾语从句时不能充当句子成分,所以便选择了B。
【分析】正确答案选 D。第一个what 用作动词 meant 的宾语,第二个what 用作动词 said 的宾语,即在 none of us understood what what he said meant 中,none of us understood 为主句,what what he said meant 为宾语从句,而在此宾语从句中又包括有 what he said 这样一个主语从句。
2. After _______ had happened he could not continue to work there.
A. which B. how
C. what D. having
【陷阱】可能误选A。
【分析】最佳答案选 C。有的同学误选A,是因为认为介词后应接关系代词 which,但实际上,若填关系代词,其前没有先行词,这根据不是一个定语从句。另外,由于 had happened 缺主语,所以B和D也不能选。请再做下面一题(答案选B):
He pointed to ______ looked like a tomb and said, “Ghost.”
A. that B. what
C. which D. as
3.“Is ______ you want to say?” asked the teacher.
A. this B. that
C. all that D. that all
【陷阱】根据中文字面意思误选A或B。
【分析】最佳答案选 D。假若选A或B,那么转换成陈述句即为:This is you want to say. / That is you want to say. 显然句中的两个谓语动词 is与want相冲突。选D组成的句子是 Is that all you want to say? 其中的that 为句子主语,all 为表语,you want to say 为定语从句,用以修饰all。
4. “When ______ leave for Japan?” “When ______ leave for Japan is kept secret.”
A. they will, will they B. will they, they will
C. they will, they will D. will they, will they
【陷阱】可能误选D,认为 when 后应用疑问句词序。
【分析】最佳答案选 B。第一个when引出的是一个特殊疑问句,故用疑问词序;第二个 when 引出的是主语从句,故其后用陈述句词序。请做以下试题(答案选C):
(1) None knows if _______ that boy, but if _______ him, her parents will be disappointed.
A. she will marry, she will marry B. she marries, she marries
C. she will marry, she marries D. she marries, she will marry
(2) “Where _______ go to work?” “Where _______ go to work is not known.”
A. we shall, we shall B. shall we, shall we
C. shall we, we shall D. we shall, shall we
5. Someone is ringing the doorbell. Go and see ______.
A. who is he B. who he is
C. who is it D. who it is
【陷阱】几个干扰项均有可能误选。
【分析】此题最佳答案为D。首先可以排除A和C,因为空格处实为一个宾语从句,所以不能用疑问句词序。另一方面,但按英语习惯,当用于指代身份不明的人时,要用代词it,而不用 he 或she等。比较以下两句:
Mr Smith is at the door. He wants to see you. 史密斯先生在门口,他想见你。
Someone is at the door. It may be the postman. 有个人在门口,可能是邮递员。
第一句因前面指明了是 Mr Smith,所以后面用代词 he;而第二句因前面用的是不定代词 someone,说明此人身份尚不明确,故其后用了代词 it 来指代。
6. Don’t you know, my dear friend, ______ it is your money not you that she loves?
A. who B. which
C. that D. what
【陷阱】此题容易误选 A或B:选 A 的同学认为这是指人的,故用who;选B的同学认为这是非限制性定语从句,两者都是误认为这是定语从句(注意没有先行词)。
【分析】其实答案应选C。that引导的是一个宾语从句,用作动词 know 的宾语,它只是被句中的插入语 my dear friend 隔开罢了。请做以下试题(答案均为C):
(1) Everyone knows, perhaps except you, _______ your girl-friend is a cheat.
A. who B. which
C. that D. what
(2) I think, though I could be mistaken, ______ she liked me.
A. who B. which
C. that D. what
(3) He told me the news, believe it or not, ______ he had earned $1 000 in a single day.
A. that B. which
C. as D. because
前面两题 that 引导宾语从句,后面一题 that同位语从句(修饰the news)。
英语语法大全:特殊同位语归纳
英语语法让很多学生都头疼,因为复杂难懂的句式和词组有时难以记忆。为大家整理了英语语法大全,本章主要介绍英语语法中的句子成分,希望对同学们的英语语法学习有所帮助。更多内容尽在。
特殊同位语归纳
当两个词或词组在一个句子中具有相同的语法地位而且描述相同的人或事物时,我们称它们为同位语。基本形式的同位语大家一般不会出错,但有几种同位语,或由于本身结构特殊,或由于它修饰的成分结构比较特殊,往往会引起误解。现小结并举例说明如下,希望引起同学们的注意。
1. 代词we, us, you等后接同位语
Are you two reading? 你们二人在看书吗?
They three joined the school team. 他们3人参加了校队。
She has great concern for us students. 她对我们学生很关心。
He asked you boys to be quiet. 他要你们男孩子安静些。
We girls often go to the movies together. 我们女孩子经常一起去看电影。
2. 不定式用作同位语
Soon came the order to start the general attack. 很快下达了发起总攻的命令。(to start the general attack与the order同位)
He followed the instruction to walk along a certain street where I picked him up. 他照吩咐沿某一条街走,我在那里接他上了车。(to walk along…与the instruction同位)
3. -ing分词用作同位语
He's getting a job tonight driving a truck. 他今晚得到一个开卡车的差事。(driving a track与a job同位)
She got a place in a laundry ironing shirts. 她在一家洗衣店得到一个熨衣服的职位。(ironing shirts与a place同位)
The first plan, attacking at night, was turned down. 第一个计划是夜袭,被拒绝了。(attacking at night与the first plan同位)
4. 形容词用作同位语
The current affair, the biggest in its history, is being held in Guangzhou. 目前的交易会,是有史以来规模最大的,正在广州举行。
He read all kinds of books, ancient and modern, Chinese and foreign. 他读了很多书,古今中外都有。
People, old and young, took to the streets to watch the parade. 老老少少的人都来到街头观看游行。
【注】这类同位语与定语比较接近,可转换成定语从句。如:
The current affair, the biggest in its history, is being held in Guangzhou.
=The current affair, which is the biggest in its history, is being held in Guangzhou.
5. none of us之类的结构用作同位语
We none of us said anything. 我们谁也没说话。
We have none of us large appetites. 我们谁饭量都不大。
They neither of them wanted to go. 他们两人都不想去。
They've neither of them succeeded in winning her confidence. 他们两人谁也没能赢得她的信任。
【注】同位语并不影响其后句子谓语的“数”,如:
学生每人都有一本词典。
正:The students each have a dictionary.
误:The students each has a dictionary.
请比较下面一句(谓语用了单数,因为each为句子主语):
正:Each of the students has a dictionary.
6. 从句用作同位语(即同位语从句)
They were worried over the fact that you were sick. 他们为你生病发愁。
I received a message that she would be late. 我得到的信息说她可能晚到。
The news that we are having a holiday tomorrow is not true. 明天放假的消息不实。
The idea that you can do this work without thinking is wrong. 你可以不动脑筋做此工作的想法是错误的。
篇4:小升初病句专项练习题
小升初病句专项练习题
学习是人类进步的阶梯,要不断的学习,才能增加自己的知识量,下面为大家分享小升初语文病句修改专项训练题,希望对大家有帮助!
病句,就是有毛病的句子。凡是违反语法结构规律或客观事理的句子都是病句,前者叫语法错误,后者叫逻辑错误。
常见的.病句种类有:
(1)词序有误;(2)前后矛盾;(3)成分残缺;(4)表意不明;(5)标点错误;(6)搭配不当;(7)语义重复;(8)归类有误;(9)成分赘余;(10)不合逻辑;
请修改以下病句:
1.秋天到了,铺满了厚厚的落叶。
___________________
2.这条弯弯曲曲的小路笔直地伸向密林深处。
___________________
3.“六一”节的那天,他加入了少先队员。
___________________
4.上课铃响了,校园里马上顿时安静下来。
___________________
5.听完故事,我的心情久久不能宁静。
___________________
6.香山的秋天是令人向往的地方。
___________________
7.我的脑海中浮现了两年多前刚刚发生的事情。
___________________
8.姐姐最爱看舞蹈和音乐。
___________________
9.老师有时经常教育我们爱惜粮食。
___________________
10.在第二十八届奥运会上,我国体育健儿顽强拼搏的精神。
_________________________
11.每天早上去公园锻炼身体。
__________________________
12.接到“三好学生”奖状,高兴极了。
_________________
13.小朋友都应该上课专心听讲的好习惯。
_________________
14.晶晶从小养成了讲卫生。
___________
15.艰难的向高峰攀登。
_________
16.我们学校的诗歌朗诵比赛。
____________
17.树上结满了许许多多数不清的果子。
________________
18.我的老师布置的所有一切作业都做完了。
_________________
19.我把教室打扫的整整齐齐。
___________
20.我们要做到节约用水的好习惯。
______________
21.宽敞的草原一望无边。
__________
22.联欢会上,大家表演了一个个精彩的节目。
__________________
23.迎面走来了一位须发花白的老奶奶。
________________
24.乌云和大雨一起从天空中倾泻下来。
________________
25.天夜里吹来稻花香一阵。
___________
26.中国人口是世界上最多的国家。
_____________
27.爸爸讲的许多雷锋动人的故事。
_____________
28.我介绍给来宾们学校的情况。
_____________
篇5:小升初专项数学练习题
为了更有效地帮助学生梳理学过的知识,提高复习质量和效率,在考试中取得理想的成绩,下文为大家准备了小升初数学训练试题。
小华从甲地到乙地,3分之1骑车,3分之2乘车;从乙地返回甲地,5分之3骑车,5分之2乘车,结果慢了半小时.已知,骑车每小时12千米,乘车每小时30千米,问:甲乙两地相距多少千米?
解答:
把路程看成1,得到时间系数
去时时间系数:1/3÷12+2/3÷30
返回时间系数:3/5÷12+2/5÷30
两者之差:(3/5÷12+2/5÷30)-(1/3÷12+2/3÷30)=1/75相当于1/2小时
去时时间:1/2×(1/3÷12)÷1/75和1/2×(2/3÷30)1/75
路程:12×〔1/2×(1/3÷12)÷1/75〕+30×〔1/2×(2/3÷30)1/75〕=37.5(千米)
篇6:小升初专项数学练习题
1.(人大附中考题)ABCD是一个边长为6米的正方形模拟跑道,甲玩具车从A出发顺时针行进,速度是每秒5厘米,乙玩具车从CD的中点出发逆时针行进,结果两车第三次相遇恰好是在B点,求乙车每秒走多少厘米?
2.(清华附中考题)已知甲车速度为每小时90千米,乙车速度为每小时60千米,甲乙两车分别从A,B两地同时出发相向而行,在途径C地时乙车比甲车早到10分钟;第二天甲乙分别从B,A两地出发同时返回原来出发地,在途径C地时甲车比乙车早到1个半小时,那么AB距离时多少?
3.(十一中学考题,五中考题)甲、乙、丙三人步行的速度分别是:每分钟甲走90米,乙走75米,丙走60米。甲、丙从某长街的西头、乙从该长街的东头同时出发相向而行,甲、乙相遇后恰好4分钟乙、丙相遇,那么这条长街的长度是多少米。
4.(西城实验考题)甲乙两人在A、B两地间往返散步,甲从A、乙从B同时出发;第一次相遇点距B处60米。当乙从A处返回时走了lO米第二次与甲相遇。A、B相距多少米?
5.(首师大附考题)甲,乙两人在一条长100米的直路上来回跑步,甲的速度3米/秒,乙的速度2米/秒。如果他们同时分别从直路的两端出发,当他们跑了10分钟后,共相遇多少次?
6.(清华附中考题)从一个长为8厘米,宽为7厘米,高为6厘米的长方体中截下一个最大的正方体,剩下的几何体的表面积是_________平方厘米。
7.(三帆中学考试题)有一个棱长为1米的立方体,沿长、宽、高分别切二刀、三刀、四刀后,成为60个小长方体。这60个小长方体的表面积总和是______平方米。
8.(首师附中考题)一千个体积为1立方厘米的小正方体合在一起成为一个边长为10厘米的大正方体,大正方体表面涂油漆后再分开为原来的小正方体,这些小正方体至少有一面被油漆涂过的数目是多少个?
9.(清华附中考题)大货车和小轿车从同一地点出发沿同一公路行驶,大货车先走1.5小时,小轿车出发后4小时后追上了大货车。如果小轿车每小时多行5千米,那么出发后3小时就追上了大货车。问:小轿车实际上每小时行多少千米?
10(西城实验考题,五中考题)小强骑自行车从家到学校去,平常只用20分钟。由于途中有2千米正在修路,只好推车步行,步行速度只有骑车的1/3,结果用了36分钟才到学校。小强家到学校有多少千米?
11(101中学考题)小灵通和爷爷同时从这里出发回家,小灵通步行回去,爷爷在前4/7的路程中乘车,车速是小灵通步行速度的10倍。其余路程爷爷走回去,爷爷步行的速度只有小灵通步行速度的一半,您猜一猜咱们爷孙俩谁先到家?
12(三帆中学考题,交大附中考题)客车和货车同时从甲、乙两城之间的中点向相反的方向相反的方向行驶,3小时后,客车到达甲城,货车离乙城还有30千米。已知货车的速度是客车的3/4,甲、乙两城相距多少千米?
13(人大附中考题)小明跑步速度是步行速度的3倍,他每天从家到学校都是步行。有一天由于晚出发10分钟,他不得不跑步行了一半路程,另一半路程步行,这样与平时到达学校的时间一样。那么小明每天步行上学需要时间多少分钟?
14(清华附中考题)如果将八个数14,30,33,35,39,75,143,169平均分成两组,使得这两组数的乘积相等,那么分组的情况是什么?
15(三帆中学考题)观察1+3=4;4+5=9;9+7=16;16+9=25;25+11=36这五道算式,找出规律,然后填写2+( )=2
16(东城二中考题)在2、3两数之间,第一次写上5,第二次在2、5和5、3之间分别写上7、8(如下所示),每次都在已写上的两个相邻数之间写上这两个相邻数之和。这样的过程共重复了六次,问所有数之和是多少?
17(人大附中考题)请你从01、02、03、…、98、99中选取一些数,使得对于任何由0――9当中的某些数字组成的.无穷长的一串数当中,都有某两个相邻的数字,是你所选出的那些数中当中的一个。为了达到这些目的。
1)请你说明:11这个数必须选出来;
2)请你说明:37和73这两个数当中至少要选出一个;
3)你能选出55个数满足要求吗?
篇7:小升初专项数学练习题
1、养花小组种了60盆花,其中45盆已经开花,开花的占总数的( )%。
2、某厂一种产品,原来每件成本96元,技术革新后,每件成本降低到了84元,每件成本降低了( )%。
3、甲数是40,乙数是50,乙数是甲数的( )%,甲数是乙数的( )%,甲数比乙数少( )%,乙数比甲数多( )。
4、白兔的只数是黑兔的 ,白兔比黑兔少( )%,黑兔的只数是黑兔的( )%。
5、江南厂去年生产肥皂5000箱,比计划多1000箱。超过计划的( )%。
6、将两个完全一样的小正方体拼成一个长方体,表面积比原来减少了( )%。
7、20xx年我国国内生产总值是20xx年的111.5%,20xx年比20xx年增长了( )%。
8、20xx年我国完成的造林面积比20xx年增加了17.3%,20xx年完成的造林面积是20xx的( )%。
9、20xx年我国的人均水资源是20xx的97.1%,20xx年我国的人均水资源比20xx下降了( )%,
10、六年级一班有学生48人,其中女生占62.5%,那么男生占( )%。
11、一件商品打八折出售,就是按( )的80%出售,也就是( )是( )的80%。
12、服装店门前广告上写着“本店所有服装一律按七五折出售”。王阿姨在这家商店里看到一件衣服的标价是280元,她只要付( )钱就可以买下这件衣服。
13、一套茶具,打九折后360元,这套茶具的原价是( )元,现价比原价便宜( )元。
14、一种运动鞋原价是228元,现在打六折出售。学校要给排球队买15双运动鞋,一共要( )元。
15、小明用60元钱买了一本纪念册,这本纪念册是按原价的七五折出售的。这本画册的原价是( )元。 比原价便宜( )元。
★数词
★数词
文档为doc格式