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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·填空题Unit 1 There are thirty students in my class.
Look at the picture on the desk.It is a picture of our _____ .There are _____ desks and fifty chairs in it.The _____ desk is for teachers.And the small ones are for _____ .On the desks are our _____ .They are Chinese boo
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七年级·英语·填空题Unit 1 There are thirty students in my class.
语法填空 阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空白处填入一个适当的词或使用括号中词语的正确形式填空。 There 【 1 】 (be)a new park behind our school.The 【 2 】 (student)in our school often go to the park.Today is 【 3 】 fine day.Millie and her friends 【 4 】 (be)in
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七年级·英语·句型转换Unit 1 There are thirty students in my class.
按要求完成句子 【1】There are some chairs in the classroom.(改为一般疑问句) ______ ______ _______chairs in the classroom? 【2】There are some pictures on the wall.(改为否定句) There______ ______pictures on the wall. 【3】—Is there a bird in the
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七年级·英语·填空题Unit 1 There are thirty students in my class.
用括号中所给单词的适当形式填空 【1】How many______(desk)are there in your classroom? 【2】There are twenty_______(girl)over there. 【3】There aren't any English books on ______(Tony)desk. 【4】There ______(be)lots of new furniture in the big r
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七年级·英语·填空题Unit 1 There are thirty students in my class.
用方框中所给单词的适当形式填空 television；real；furniture；forty；some 【1】It's ______cold in winter in Beijing. 【2】Thirty and ten is _______. 【3】There are two _______ in my home. 【4】Our teachers buy a lot of ________ this week. 【5】There a
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七年级·英语·单词拼写Unit 1 There are thirty students in my class.
根据句意及汉语提示完成单词 【1】It's a _______(地图)of China. 【2】I _______(非常)like this cat. 【3】The house is new and there is no ________(家具)in it. 【4】That ________(电脑)is my sister's. 【5】Our new _______(电视机)is very big. 【6】There are ____
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
那些是我的父母亲。 ____________my parents.
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七年级·英语·单词拼写/单词释义Unit 3 Language in use.
她的书在椅子上。 Her books ____________ the chair.
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七年级·英语·短文改错Unit 3 Language in use.
Lynn likes going swim in summer. （ ） ______ A B C
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七年级·英语·短文改错Unit 3 Language in use.
Danny met John on his way to home. （ ） ______ A B C
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七年级·英语·短文改错Unit 3 Language in use.
Let's go out and play under the sun. （ ） ______ A B C
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七年级·英语·短文改错Unit 3 Language in use.
There are an apple and two pears on the table. （ ） ______ A B C
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七年级·英语·短文改错Unit 3 Language in use.
Learn English opens a door to the world. （ ） ______ A B C
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七年级·英语·句型转换Unit 3 Language in use.
Are those apples？（作否定回答） No, ______.
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
对学生们来说练习说英语是很重要的。 ______
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
对学生来说在学习和玩耍之间保持平衡是很重要的。 ______
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
我希望不会错过明天会议上什么重要的东西。 ______
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
My mother cooked __________________ （一顿丰盛的晚餐） for me yesterday.
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
Your body is like a factory.It takes in "materials" and puts out "goods"（货品）.If you starts with poor materials,your goods may not be very high-quality （高质量的）.But if you use b (1) materials,your goods will come out much b
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七年级·英语·单词拼写/单词释义Unit 2 Is your food and drink healthy?
We have to ______ （待） at school because it is Monday today.
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