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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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九年级·英语·选择题Unit 3 Language in use

—Would you mind if I keep this book for a week? —______．You can do it．

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九年级·英语·选择题Unit 3 Language in use

Please remember to return the book______you borrowed last week．

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九年级·英语·选择题Unit 3 Language in use

Tom was often made ______ for 12 hours a day by his boss．

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九年级·英语·选择题Unit 3 Language in use

My father has many books，some of ______ are on history．

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九年级·英语·选择题Unit 3 Language in use

—How long______you______the computer? —For a couple of years．

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九年级·英语·完成句子Unit 3 Language in use

用who或which，that连接句子【1】The building is our school．The building stands by the lake． The building ________________ is our school．【2】Here is the girl．The girl wants to see you． Here is the girl ________________．【3】I am th

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九年级·英语·选择题Unit 2 The photo which we liked best was taken by Zhao Min.

—I won the long jump yesterday． —______

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九年级·英语·选择题Unit 2 The photo which we liked best was taken by Zhao Min.

______it was raining，she still went to work on time．

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九年级·英语·选择题Unit 2 The photo which we liked best was taken by Zhao Min.

The school is______my home．

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九年级·英语·选择题Unit 2 The photo which we liked best was taken by Zhao Min.

—Can you show me______the computer? —Of course．

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九年级·英语·句型转换Unit 2 The photo which we liked best was taken by Zhao Min.

【1】Do you know the man？The man is picking up the waste paper．（用who改写句子） Do you know the man ______ ______ up the waste paper? 【2】The novel is very interesting．I read it yesterday．（用which改写句子） The novel ______ I ______ ye

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九年级·英语·填空题Unit 2 The photo which we liked best was taken by Zhao Min.

根据短文内容和所给中文提示，用单词的正确形式完成以下短文． I have watched the documentary（纪录片）---I'm from Xinjiang on the Silk Road (1) （最近）． Many people have seen it． And the (2) （普遍的）opinion is that the documentary is a success． The (3) （主题）of the

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九年级·英语·填空题Unit 2 The photo which we liked best was taken by Zhao Min.

tonight；headmaster；win；even though；rush When I was young，I wanted to be an Olympic ______ ． ______ most of the products have foreign brands，they were made in China． -Where's your brother，Tim？ -I saw him ______ into the g

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九年级·英语·阅读理解Unit 2 The photo which we liked best was taken by Zhao Min.

Children across the world are taking pictures of their school meals．They are sending these pictures over the Internet to a young girl in Scotland．Then she shares the pictures and stories with people around the world． The

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九年级·英语·补全对话Unit 1 He’s the boy who won the photo competition last year!

根据对话内容，从方框内选择恰当的句子填入对话相应的空白处，使对话完整，合乎情景（有两个多余选项）。 A: My friend Kate invited me to her birthday party . 【 1 】 B: How about an album? A: 【 2 】 How much is an album? B: 【 3 】 A: That’s too expensive . I don’t have enough mo

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九年级·英语·填空题Unit 1 He’s the boy who won the photo competition last year!

选词填空 get on at the front on the left the same as last time 【1】Who's that tall soldier ____________ of the team? 【2】There is a bank ____________ of our school．【3】How is your homework ____________，Jack? 【4】When did you go

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九年级·英语·选择题Unit 1 He’s the boy who won the photo competition last year!

Which person do you mean？______ with glasses on?

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九年级·英语·选择题Unit 1 He’s the boy who won the photo competition last year!

---So kind of you to give me a ride to the station! --- .________________________

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九年级·英语·选择题Unit 1 He’s the boy who won the photo competition last year!

He's the engineer ______ designed this tall building．

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九年级·英语·选择题Unit 1 He’s the boy who won the photo competition last year!

—I’m very sorry, Allen. I can't find your favorite CD. — _____, Torn. I'll go and buy another one.