苏教版七年级上英语易错题精华难题
苏教版七年级数学上册 压轴解答题易错题(Word版 含答案)
苏教版七年级数学上册 压轴解答题易错题(Word 版 含答案)
一、压轴题
1.概念学习:
规定:求若干个相同的有理数(均不等于0)的除法运算叫做除方.
如:222÷÷,()()()()3333-÷-÷-÷-等,类比有理数的乘方,我们把222÷÷记作
32,读作“2的3次商”,()()()()3333-÷-÷-÷-记作()43-,读作“3-的4次
商”.一般地,我们把n 个()0a a ≠相除记作n a ,读作“a 的n 次商”.
(1)直接写出结果:3
12⎛⎫
= ⎪⎝⎭______,()42-=______.
(2)关于除方,下列说法错误的是( ) A .任何非零数的2次商都等于1 B .对于任何正整数n ,()111n --=-
C .除零外的互为相反数的两个数的偶数次商都相等,奇数次商互为相反数
D .负数的奇数次商结果是负数,负数的偶数次商结果是正数. 深入思考:
除法运算能转化为乘法运算,那么有理数的除方运算如何转化为乘方运算呢? (3)试一试,将下列运算结果直接写成乘方(幂)的形式
()43-=______ 6
15⎛⎫
= ⎪
⎝⎭______ (4)想一想,将一个非零有理数a 的n 次商写成乘方(幂)的形式等于______.
(5)算一算:2019
23420201111162366⎛⎫⎛⎫⎛⎫⎛⎫
÷-÷---⨯ ⎪ ⎪ ⎪ ⎪
⎝⎭⎝⎭⎝⎭⎝⎭
2.已知:b 是最小的正整数,且a 、b 、c 满足()2
50c a b -++=,请回答问题. (1)请直接写出a 、b 、c 的值.
a =
b =
c =
(2)
苏教版六年级英语(上)6A英语易错题
精品---
六年级英语易错题
姓名
1.Gao Shan ____ (be) at home yesterday. He ____ (be) ill but he ___ (be) fine now.
2.The king (not ,wear) any clothes.
3.The queen (can) not touch the flowers when she (be) young(年轻).
4.I (not meet) Nancy just now.
5.Look at the plane. It’s(fly) so high.
6.People (go) to the park every morning.
7.It was (rain) yesterday(昨天).And it (rainy) heavily
8.The weather is (wind) now. 9.I (bring)my homework here.
10.Oh, what a day! It’s (rain) now. 11.Mary is (excite) about the fashion show
12.The students are (get) very excited. 13.Don’t ________ (run) in the school now.
14.My father likes (fish) very much. 15. A pair of glasses (be) behind the CD Walkman now.
苏教版五年级下册英语同步易错题整理
五年级下册英语同步错题整理
一.根据所给单词画线部分的发音规律补全单词,每空一词。
1.sh( )p c( )ty
2.tr()ffic th()nk
3.r( )st dr( ) ss
二.中英互译
1.喜欢骑自行车 ____________________
2.在地铁上 ____________________
3.get there ____________________
4.give the way ____________________
5.左转_____________________________
6.吃冰淇淋 ________________________
7.中国食物_________________________
8.刷牙____________________________
9.骑自行车去公园 ___________________10.洗些蔬菜________________________ 11.许多害虫_________________________12.把害虫赶跑_____________________
13.吃月饼__________________________14.中国节日_________________________
三.句子练习。
(A)用所给词的适当形式填空。
1.Let me help _________(shi).
2.Su Yang _____________(not do)her homework on Sundays.
3.________________(Not shout) in the library.
初一上册英语错题整理
初一上册英语错题整理
整理初一上册英语错题是一个很好的学习策略,可以帮助你了解自己在学习中存在的问题,并加以改进。以下是一些初一上册英语错题整理的示例:
1. 选择题:
I have _______ English book. It is _______ interesting book.
A. a; the
B. an; the
C. a; an
D. an; a
正确答案:C
解析:第一个空泛指一本英语书,English以元音音素开头,用不定冠词an;第二个空泛指一本书,interesting以元音音素开头,用不定冠词an。故选C。
2. 填空题:
Please give me _______ knife and a fork.
A. a
B. an
C. the
D./
正确答案:B
解析:泛指一把刀和叉,knife以元音音素开头,用不定冠词an。故选B。
3. 阅读理解:
阅读短文,判断正误。
> I have a brother and a sister. My brother is tall and has short hair. My sister is short and has long hair. They both like sports, but my sister is more active. She plays basketball and soccer every day. My brother only plays soccer once a week. I like watching TV at home. (改编自课本原文)
苏教版九年级上英语期末复习3-4单元经典易错题集锦
苏教版九年级上英语期末复习3-4单元经典易错题集锦
九年级英语上册第3-4错题回放(1)
一.选择
( )1.He got more than 380000followers in two hours his first message on Weibo.
A.before
B. after
C.since
D. until
( )2. It’s more than ten years since I a teacher .
A.become s
B. became
C. has become
D. was becoming ( )3. I met Lucy in the primary school and we close friends ever since .
A.Have become
B. have been
C. were
D. became
( )4. Two and three came to our company for business last week.
A.Germen ; Englishmen
B. Germans; Englishmen
B.Germans ; Englishans D. Germans ; Japaneses
( )5. The old radio requires , so you ‘d better have it soon.
A.To repair ; repaired
B. repairing; repaired
B.to be repaired ; repair D. to repair ; repairing
七年级上册英语错题整理
七年级上册英语错题整理
以下是一些七年级上册英语错题整理,以帮助您更好地备考考试。
1. 阅读理解:
题目:The sentence "The book is on the table." means ______.
A. The table is next to the book
B. The book is on top of the table
C. The book is under the table
D. The book is in front of the table
答案:B
解析:在句子"The book is on the table."中,介词"on"表示某物位于另一物的顶部,因此正确答案为B。
2. 词汇:
题目:The word "apple" is a(n) _______ of fruit.
A. example
B. name
C. kind
D. type
答案:B
解析:题目中问的是"apple"是哪个词的例子,根据常识和语境,可以判断出"apple"是水果的名称,因此答案为B。
3. 语法:
题目:The teacher asked us _______ the new words in the textbook.
A. to read
B. read
C. reading
D. reads
答案:A
解析:ask sb to do sth是固定搭配,表示请求某人做某事,因此答案为A。句意是:老师要求我们读教科书中的新单词。
苏教版译林牛津初中英语时态语态和情态动词易错题讲与练
中考英语专项突破-动词时态、语态及情态动词易错题汇编(带
解析)
满分:
班级:_________ 姓名:_________ 考号:_________
一、单选题(共41小题)
1.Mrs.Weng came back from France in 2010. She _________ there for four years.
A.works
B.worked
C.has worked
2.— Mr. Lee to a student when I entered the classroom this morning.
—He is very patient he is young.
A.talking; but B.talks; though
C.was talking, though D.talked, however
3.Our country ______the sixth population census(人口普查) already.
A.finished B.has finished
C.will finish D.finishes
4.I called you, but nobody answered. Where_______ you?
A.is B.are C.was D.were
5.Betty will ring me up when she _______ in Beijing.
A.arrive B.arrives
C.arrived D.will arrive
6.I ______my hometown for a long time, I really miss it!
苏教版七年级上册数学 压轴解答题易错题(Word版 含答案)
苏教版七年级上册数学 压轴解答题易错题(Word 版 含答案)
一、压轴题
1.已知M ,N 两点在数轴上所表示的数分别为m ,n ,且m ,n 满足:|m ﹣12|+(n +3)2=0
(1)则m = ,n = ;
(2)①情境:有一个玩具火车AB 如图所示,放置在数轴上,将火车沿数轴左右水平移动,当点A 移动到点B 时,点B 所对应的数为m ,当点B 移动到点A 时,点A 所对应的数为n .则玩具火车的长为 个单位长度:
②应用:一天,小明问奶奶的年龄,奶奶说:“我若是你现在这么大,你还要40年才出生呢;你若是我现在这么大,我已是老寿星,116岁了!”小明心想:奶奶的年龄到底是多少岁呢?聪明的你能帮小明求出来吗?
(3)在(2)①的条件下,当火车AB 以每秒2个单位长度的速度向右运动,同时点P 和点Q 从N 、M 出发,分别以每秒1个单位长度和3个单位长度的速度向左和向右运动.记火车AB 运动后对应的位置为A ′B ′.是否存在常数k 使得3PQ ﹣kB ′A 的值与它们的运动时间无关?若存在,请求出k 和这个定值;若不存在,请说明理由. 2.如图,数轴上点A 、B 表示的点分别为-6和3
(1)若数轴上有一点P ,它到A 和点B 的距离相等,则点P 对应的数字是________(直接写出答案)
(2)在上问的情况下,动点Q 从点P 出发,以3个单位长度/秒的速度在数轴上向左移动,是否存在某一个时刻,Q 点与B 点的距离等于 Q 点与A 点的距离的2倍?若存在,求出点Q 运动的时间,若不存在,说明理由.
苏教版七年级上英语易错题精华难题
七年级英语易错题
No.1 Choice question 60’
1.What does Mary look like?
A.She’s tall with glasses
B.She’s tall and slim.
C. She’s tall and has big eyes
D.She likes reading
2.The interesting stories made everyone _____.
A. relax
B. to relax
C. relaxing
D. relaxed
3.—What does the sign on the wall mean? —It tells us _____ .
A. to talk
B. to keep talking
C. not to talk
D.talking
4.--_______ Tom in the English Club? —Yes,but he _____go there very often .
A. Does;doesn’t
B.Does;isn’t
C. Is ;does
D.Is;doesn’t
5.I think this new dress is better. It makes_______ pretty.
A. her look
B.her looks
C. she look
D.she looks
6. ---Which one has different sound from others? ---I think it is ________.
苏教版七年级上数学易错题
苏教版七年级上数学易错题
1某会议室主席台上方有一个长12.8m的长条形会议横标框,铺红色衬底。开会前将会议名称,贴于其上。但有时字数不一样,为了方便制作与美观,规定:边空:字宽:字距=9:6:2,现有18字,求字距,字宽与边空?
因为比例为9:6:2,七个空,所以(17X2+6X18+9X2)=12.8.X=0.08,边宽0.72,字0.48,空0.163.
2.为了加强公民的节水意识,合理利用水资源,某市采用价格调控手段达到节水的目的,该市自来水收费价格见价目表.
(不超过6m³部分为2元每m³,超出6m³不超出10m³部分为4元每m³,超过10立方部分为8元每m³),若某户居民1月份用水8立方米,则应收水费2×6+4×〔8-6〕=20元.
(1).若该户居民2月份用水12.5立方米,则应收水费多少元?
(2).若该户居民3,4月份共用水15立方米〔4月份用水量超过3月份〕,共交水费44元,则该户居民3,4月份各用水多少立方米?
解:设3月份用水X吨,则4月份用水(15-X)吨
情形一:
3月份少于6吨,4月份大于6吨少于10吨:
则可列出方程:
2X+6*2+4*[(15-X)-6]=44
解得:
X=2
15-X=13
不符合4月份大于6吨少于10吨的前提
情形二:
3月份大于6吨,4月份大于6吨少于10吨:
则可列出方程:
6*2+4*(X-6)+6*2+4*[(15-X)-6]=44
无解
情形三:
3月份少于6吨,4月份大于10吨:
则可列出方程:
2X+6*2+4*4+8*[(15-X)-10]=44
解得:
X=4
苏教版新译林七年级上册7A Unit2 易错题整理练习
7AU2 错题集
一、单项填空。
( ) 1. Does your brother home on foot?
A. walk
B. go
C. go to
D. walk to
( ) 2. -- How time do you go swimming every day?
-- Thirty minutes and I go swimming times a week.
A. much ; much
B. many ; many
C. many ; much
D. much ; many ( ) 3. your sister good at ?
A. Does ; playing the football
B. Is ; playing the football
C. Do ; playing football
D. Is ; football
( ) 4. My mother at weekends.
A. enjoy shopping
B. enjoies shopping
C. enjoys shopping
D. enjoys shoping ( ) 5. --What’s favourite subject? -- favourite subject is Chinese.
A. your ; My
B. you ; I
C. your ; I
D. you ; My
( ) 6. Mike one of the new of our class?
A. Is ; members
B. Are ; members
C. Is ; member
最新苏教版牛津英语初中七年级上册教案全册
苏教版牛津英语初中七年级上册精品教案
Unit 1 Getting to know you
Topic 3 I’m twelve years old
Section C
Ⅰ. Teaching aims and demands 教学目标
1. Learn the sentences:
What’s this/that in English? It’s a/an _____.
What are these/those in English? They are ______s.
How do you spell it?
2. Learn the following new words and phrases:
English, spell, these, those, double,
in English,
a car, a pencil-box, a pen, a pencil, a book, a bag, a cake
an orange, an apple, an eraser, an egg
buses,
Ⅱ. The main activities本课重点活动
1a and 2a
Ⅲ. The difficulties 教学难点
What’s this/that in English? It’s an eraser.
What are these/those in English? They are buses.
How do you spell it?
IV. Teaching aids 教具
1. Practicalities: A oranges, apples, eggs, bags
苏教版小学英语大考常见题型及注意事项
笔试部分
一、语音题
题型一:判断划线部分的发音是否相同,相同写S/T/√, 不同写D/F/Х 题型二:选出划线部分发音与例词相同的一个 题型三:选出划线部分发音与其余三个不同的一个 题型四:根据发音归类
审清题目,不犯低级错误。 熟读语音讲义,掌握开闭音ቤተ መጻሕፍቲ ባይዱ规则。 牢记特例,详见讲义。
笔试部分
二、英汉互译
听力部分
四、听录音,判断所听内容是否与情景相符, 相符的写“T”/打“√”,不符的写 “F”/打“Х”。 审清题目,记录关键 圈出不符的地方,帮助判断
听力部分
五、听录音,将对话/短文补充完整
一猜:预习听力时,读通文章,进行预测; 二听:如果空格数较多,听的时候要学会先写单 词的前两个字母,过后还能凭记忆补充完整; 三查:这部分是整个听力部分唯一要求认真检查 的部分。查:大小写、单复数、v.原/v-ing、拼写。 听力考试前会给出五分钟时间预习听力,要充 分利用这段时间,仔细审题、读图、预测。
四会单词为主,注意单复数、大小写、标点符号! 每个词组看完三遍再下笔,圈出关键字眼。 易错点: lake, river skirt, dress his, her subjects, lessons like, love many, some meet, see too, so good night/good evening in the evening/at night
苏教版初一上册英语易错题
苏教版初一上册英语易错题
引言
本文档旨在整理苏教版初一上册英语中的易错题,并提供解析和解决方法,以帮助学生更好地掌握知识。
问题一:Unit 1 - Section A
题目描述
题目:______ do you go to school? --I go to school by bike.
选项:
A. How long
B. How much
C. How
D. How far
解析与解决方法
正确答案是C. How。题目中问的是“你是怎么去学校的”,所以应选用“How”。选项A. How long 意味着时间长度,B. How much 意味着数量,D. How far 意味着距离,都不符合题目要求。
问题二:Unit 2 - Section B
题目描述
题目:- Where is Tom from? - _______.
选项:
A. He is twelve years old.
B. He is a student.
C. He is from Canada.
D. He likes playing basketball.
解析与解决方法
正确答案是C. He is from Canada。题目中问的是“汤姆来自哪里”,所以应选用选项C. He is from Canada。
问题三:Unit 3 - Section C
题目描述
题目:Sam _______ for three hours since he got home.
选项:
A. studies
B. studied
C. is studying
D. has studied
苏教版七年级上册数学期末试卷易错题(Word版含答案)
苏教版七年级上册数学 期末试卷易错题(Wgd 版 含答案)
—、选择题
1.下列运用等式的性质,变形不正确的是:
贝 ∣Jx + 5 = y + 5
4. 如图的平面展开图折叠成正方体后,相对而上的数都互为相反数,那么d 的值是()
C.若X =儿 XV
a b
则—=—
D •若一=—(c≠0) t 则a=b
a a
C C
45时,时针与分针形成的角度为(
)
C.
2. 钟而上& A. 7.5°
3. 下列说法不正确的是() A.对顶角相等
C. 一个角的补角一泄大于这个角
B. 15°
30° D. 45°
B. D. 两点确立一条直线 两点之间线段最短
C.
D.
A. -2
B. C. D.
6. ■3的相反数为( A. -3 B.
3
将7760000用科学记数法表示为(
C. D.
7.
A. 7.76×105
B. 7.76×IO 6
8. 下列叙述中正确的是() ①线段AB ③直线AB A. )
C. 77.6 ×
D. 7.76×107
9. 可表示为线段BA;
可表示为直线BA;
①②③④
B.②③
下列方程变形中,正确的是(
②射线AB 可表示为射线BA;
④射线AB 和射线BA 是同一条射线.
c.①③ D ・①②③
A. B. 方程3x-2 = 2x+l,移项,得3x-2x = -l + 2
方程3 —x = 2 — 5(x —1),去括号,W3-x = 2-5x-l C. D.
2 3
方程二/ = -,系数化为1,得/ = 1
3
2
X — 1 X
方程 --------- =1,整理得3x = 6
10.下而四个图形中,Zl=Z2-⅛成立的是()
苏教版初一数学上册期末易错题(难)
1.如果飞机上升2000米记为+2000米,那么—1000米表示 .
2.单项式-3
22
ab 的系数是 ; 次数 ;多项式132222--y x y x 的次数是 ,各项系数的和 .
两个三次多项式的和的次数一定是 两个二次多项式的和的次数一定是
3.已知关于x 、y 的多项式254322-++-+y x ky x kx ,当k= 时,这个多项式不含二次项;当
k= 时,这个多项式不含y .
4.“m 的倒数与3的平方差”,用代数式表示为 ;当m= -1时,该代数式的值
为 .
5.若15+m xy 与32y x n -是同类项,则m+n=___________.
6.一个多项式加上223x x -+-得到12-x ,这个多项式是 .
7. 三个连续的奇数,中间的一个是 2n+1,则三个数的和为 8.若代数式2
231x x -+的值是3,则代数式2467x x -++的值是
当x=1时,代数式53++bx ax 的值为9-,那 当x=-1代数式53++bx ax 的值为 9.写出一个含有字母a 的代数式,使字母a 不论取什么值,这个代数式的值总是正数.你所写的代数式
是 .写出一个含有字母a 的代数式,使字母a 不论取什么值,这个代数式的值总是负
数.你所写的代数式是 .
10 下列代数式的值中,一定是正数的是 ( )
A .()x +12
B .||x +1
C .()-x 2+1
D .-x 2
+1 11. 若x 表示一个两位数, y 也表示一个两位数,小明想用 x 、 y 来组成一个四位数,且把 x 放在 y 的左
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七年级英语易错题
No.1 Choice question 60’
1.What does Mary look like?
A.She’s tall with glasses
B.She’s tall and slim.
C. She’s tall and has big eyes
D.She likes reading
2.The interesting stories made everyone _____.
A. relax
B. to relax
C. relaxing
D. relaxed
3.—What does the sign on the wall mean? —It tells us _____ .
A. to talk
B. to keep talking
C. not to talk
D.talking
4.--_______ Tom in the English Club? —Yes,but he _____go there very often .
A. Does;doesn’t
B.Does;isn’t
C. Is ;does
D.Is;doesn’t
5.I think this new dress is better. It makes_______ pretty.
A. her look
B.her looks
C. she look
D.she looks
6. ---Which one has different sound from others? ---I think it is ________.
A. short
B. world
C. horse
D. sport
7.There is a clock _______ the wall and the windows are _____ the wall.
A. on, in
B. in, on
C. in, in
D. on; on
8.----You look happy toady.
-----Yes, _______I meet an old friend of mine .
A. so
B. but
C. /
D. Because
9. ---There is ____________ art lesson this morning.
---Yes. But where is ____________ art room, do you know?
A. an; a
B. an; /
C. an; the
D. the; a
10. Dad, my trousers are old. I want to buy a new ________.
A. trousers
B. one
C. it
D. pair
11.--Andy,___________,it’s time to have breakfast. --OK,Mom.
A. get up
B. gets up
C. getting up
D. to get up
12.The bookshop near our school_______ the whole day on Sunday.
A. opens
B. Is open
C. open
D. Is opening
13. —_________________? — It’s November 14.
A. What time is it
B. What day is it
C. When is it
D. What’s the date
14.--How often does Grace exercise? ---____________.
A.Twice .
B.Four times .
C.Five times a week.
D.Five time a week
15.-----_________do you go shopping a month?
-----Twice.
A.How often
B.How soon
C.How many times
D.How long
16.I hope _______ a great star when he grows up.
A. he to be
B.him
C.him to be
D.he will be
17.I hope _______ a great star when he grows up.
A. to be
B.will
C.will be
D.am
18.Can you help me ______ the window?
A. open
B.to open
C.opening
D.opens
19.Tom,Jim and Nick _______ Australian food.
A.are all like
B.all like
C.all are like
D.are like all
20.You ,he and I ______ the floor now .
A. sweeps
B.am sweeping
C.are sweeping
D.sweep
21. ---How does your mother look? ---_____________
A. She is a teacher.
B. She likes reading.
C. She looks tall and slim.
D. She walks to school.
22.Don’t spend too much time ________computer games .
A. on playing
B.to play
C.on
D.played
23 -- Look at that photo. What a happy family! --Yes, it’s a photo _____ my family.
A. at
B. for
C. of
D. in
24.Playing basketball and football __________ great _______for us.
A. is;fun
B. are;a fun
C. is;a fun
D. are;fun
25.--Li Hua has a dictionary ,would you like to borrow ______? ---No, I’d like to buy______.
A. it;one
B. one;a dictionary
C. one;it
D. It;it
26.We _______ the lessons at Jinglun.
A.are all like
B.all like
C.all are like
D.are like all
27.I like TF boys ________ the songs.
A. to sing
B. sing
C. singing
D. for sing
28.________ of them has his own opinion.
A. Both
B. Some
C. Every
D. Each
29. --What ______ useful book! --Yes. I found _____ difficult for me to read.
A. an;it
B. a;it’s
C. an;it was
D. a;it
30.---Who’s that girl over there? ----Julia,she is a student of _______.