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#1 · 常错题
#2 · 常错题
将循环小数化为分数:整数、有限小数、循环小数都可以化成分数,整数和有限小数化成分数容易,循环小数如何化成分数呢?请看下面的例子. 将循环小数$0.288\ldots $化成分数:将$0.288\ldots $分别乘$10$和$100$,得$2.88\ldots $和$28.88\ldots $,两个得数相减得$26(两个得数小数部分相同)$,而相减所得的$26$应该是$0.288\ldots $的$\left(100-10\right)
#3 · 常错题
今年市委市政府积极推进创建“全国文明城市”工作，市创城办公室为了调查初中学生对“社会主义核心价值观”内容的了解程度\((\)程度分为：“\(A-\)十分熟悉”，“\(B-\)了解较多”，“\(C-\)了解较少”，“\(D-\)不知道”\()\)，对我市一所中学的学生进行了随机抽样调查，根据调查结果绘制了两幅不完整的统计图如图，根据信息解答下列问题： \((1)\)本次抽样调查了多少名学生； \((2)\)补全条形统计图和扇形统计图； \
#4 · 常错题
#5 · 常错题
一批水果的标准质量是$30$千克,超出标准质量记为正,低于标准质量记为负,现记录如下:$+8$,$-9$,$-5$,$+7$,$-8$,$-6$,$+7$,$+10$. $(1)$这批水果总共有多少千克? $(2)$第一天按每千克价格$5$元卖出了这批水果的一半,第二天为了吸引顾客把第一天卖水果的价格降价$20\%$后作为新的价格,卖完了剩下的水果,请计算一下这批水果一共卖了多少钱?
#6 · 常错题
分类讨论思想是数学的重要思想,在学习有理数的过程中,也深有感受$!$ $(1)$当$ab \lt 0$时,若$b \gt 0$,$|a| \lt |b|$,则$a+b \_\_\_\_\_\_0$； $(2)$当$abc \lt 0$时,若$ab \gt 0$,则$c \_\_\_\_\_\_0$； $(3)$已知$a$,$b$,$c$是非零有理数,则$\frac{a}{|a|}+\frac{b}{|b|}+\frac{c}{|c|}=
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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?
Come to the f ______ （前面） with courage and show your talent,Daniel.
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七年级·英语·单词拼写/单词释义Unit 1 Is this your mum?
Can you write with your ______ （左边的） hand？
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
你在找你的钢笔吗？ Are you ______ your pen？
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
汤姆经常把书落在学校。 Tom often ______ his books ______.
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七年级·英语·填空题Unit 3 Language in use.
I like to watch the fish ______ （swim） in the river when I am free.
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七年级·英语·填空题Unit 3 Language in use.
This is a dog. ______ colour is black. （ it ）
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七年级·英语·填空题Unit 3 Language in use.
The dog is mine. ______ （it） color is black.
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七年级·英语·填空题Unit 3 Language in use.
My uncle often teaches me ______ （swim） in his free time.
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七年级·英语·填空题Unit 3 Language in use.
There are______ （thousand）of trees in this mountain.
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七年级·英语·填空题Unit 3 Language in use.
The red crayon is ______ （her）.
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七年级·英语·单词拼写/单词释义Unit 2 The library is on the left of the playground.
Hi， boys and girls． Let me tell you something about Li Dong's room．Look! This is Li Dong's (1) ． There is a bed， a table， a desk， a chair， (2) pictures and other things in the room． Can you (3) them？ Look! There is a des
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七年级·英语·阅读理解Unit 2 The library is on the left of the playground.
I'm Du Fan．I'm a student in Class1, Grade1 at Shangdu Middle school．My school is small. You can see only one classroom in it. In the classroom, you can see three students and a teacher. The three students are He Dong, Ta
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七年级·英语·填空题Unit 2 The library is on the left of the playground.
I'm Li Jun from China.I'm a Chinese student.I'm a _____ .My English name is Jack and I'm twelve.There are _____ people in my family.They are my _____ ， my mother ， my grandmother and me.I am the only child in my _____ .M
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七年级·英语·填空题Unit 2 The library is on the left of the playground.
根据短文内容和括号内所给汉语意思，写出空白处各单词的正确形式 ( 每空一词 ) 。 Hello ， everyone ！ 【 1 】 ( 欢迎 )to No.1 Middle School.I'm Lily.I'd like to tell you something about the school.It's 【 2 】 ( 大的 )and beautiful.There are 1 ， 800 students and 180 【
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七年级·英语·句型转换Unit 2 The library is on the left of the playground.
按要求完成句子 【 1 】 There is a woman near the house.( 改为复数句 ) __ __ __ __ near the house. 【 2 】 There are fifty __students in our class.( 对画线部分提问 ) __ __ students are there in your class? 【 3 】 There is a __ map on the wall.(
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七年级·英语·填空题Unit 2 The library is on the left of the playground.
用括号中所给单词的适当形式填空 【1】My mother is behind __ (I)． 【2】Where __ (be)Lily and Betty? 【3】Our school has many __ (tree)． 【4】The __ (build)is very beautiful. 【5】There __ (be)50 chairs in my classroom. 【6】There are five __ (librar
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七年级·英语·填空题Unit 2 The library is on the left of the playground.
从方框中选择合适的介词或介词短语填空 for；with；about；of；next to；on； in front of；behind；in；like 【1】This is a photo __ Ben's friends. 【2】What can I do __ you? 【3】I like books __ many pictures. 【4】What's the weather __ in Hangzhou? 【5】Jim is
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七年级·英语·单词拼写Unit 2 The library is on the left of the playground.
根据句意及汉语提示完成单词 【1】The dining hall is __ (靠近)the gate. 【2】I go to school __ (和)my mother. 【3】There is no computer in my __ (房间)． 【4】Vincent is reading books in the __ (图书馆)． 【5】There is a football __ (在……后面)the door. 【6】My
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七年级·英语·阅读理解Unit 1 There are thirty students in my class.
Dear Lingling， I am writing this letter to you in my classroom.It's really a big room.There are fifty students in my class，twentyeight girls and twentytwo boys.In the front of the classroom，there is a blackboard，a map
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七年级·英语·阅读理解Unit 1 There are thirty students in my class.
This is a reading room in Kate’s school. It is big and very nice. There is a lot of furniture in it. There are twenty desks, eighty chairs and twenty computers. There’re some pictures on the wall. They are all of famous
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