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#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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八年级·英语·填空题Unit 5 Magazine articles

We visited Bali Island,a place to the south of Indonesia last month.We had a lot of water activities and enjoyed ______ .(we)

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八年级·英语·填空题Unit 5 Magazine articles

We are asked to collect some information about road ______ .(safe)

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八年级·英语·填空题Unit 4 Newspapers

Mum's New Year Surprise Molly ran back home from school and dropped her schoolbag on the sofa.Then on the table she saw"Mum's Wish Book"-a mail order catalog from a gift shop."Mum,"she said excitedly to herself,"this yea

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八年级·英语·阅读理解Unit 4 Newspapers

Choose the best answer(根据短文内容,选择最恰当的答案) The mystery stories of Sir Arthur Conan Doyle are famous all over the world. The detective in his stories is called Sherlock Holmes.He solves mysteries in a most surprising way.Thr

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八年级·英语·单词拼写/单词释义Unit 4 Newspapers

A.guess B.improve C.knowledgeable D.become familiar with E.yourself F.information Secondly,read newspapers every day.Remember words through context and frequently expose (1) ______ to these words.Once they appear several

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八年级·英语·单词拼写/单词释义Unit 4 Newspapers

(从方框中选择最恰当的单词或短语,完成短文) A.choose B.articles C.as well as D.contains E.headlines F.thoroughly Reading an English newspaper is a good way to improve a student's language ability.As an English newspaper (1) ______ many usefu

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八年级·英语·句型转换Unit 4 Newspapers

Millie didn't know.Will she be responsible for the sports section?(合并为一句) Millie didn't know ______ ______ be responsible for the sports section.

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八年级·英语·句型转换Unit 4 Newspapers

It costs her twelve pounds to go to London by ship.(保持句意基本不变) She ______ twelve pounds ______ to London by ship.

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八年级·英语·句型转换Unit 4 Newspapers

Joyce was the host of the meeting that day.(保持句意基本不变) Joyce ______ ______ ______ the meeting that day.

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八年级·英语·句型转换Unit 4 Newspapers

Students had their classes last Sunday.(改为反意疑问句) Students had their classes last Sunday, ______ ______ ?

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八年级·英语·句型转换Unit 3 Electricity

Rewrite the sentences as required. 【 1 】 Benny tricked Daisy at last. (改为一般疑问句) ________ Benny ________ Daisy at last? 【 2 】 These thin wires are connected to cables under the street. (改为反义疑问句) These thin wires are conne

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八年级·英语·句型转换Unit 3 Electricity

Change the following sentences into objective clauses. ( 将下列句子改成宾语从句 ) 【 1 】 He said, “You are younger than I.” He said ________ I ________ younger than him 【 2 】 Peter says, ‘Tom is a good student. Peter says ________ T

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八年级·英语·选择题Unit 3 Electricity

It’s raining heavily outside. There________ be few people going out.

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八年级·英语·选择题Unit 3 Electricity

One ______ easily lose his way when he visits or comes to a new place.

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八年级·英语·选择题Unit 3 Electricity

You ________ be absent-minded ( 心不在焉 ) in the English class.

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八年级·英语·选择题Unit 3 Electricity

A: May I eat some chocolates? B: I’m afraid you________. It’s time for bed.

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八年级·英语·选择题Unit 3 Electricity

A: May I leave now? B: No, you ________. You ________stay here.

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八年级·英语·选择题Unit 3 Electricity

It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him.

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八年级·英语·填空题Unit 2 Water

Read the passage and fill in the blanks with proper words ( 在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给): Water is very important for living things. Without water there can be no 1 【 1 】 on earth. All animals and plants need wate

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八年级·英语·填空题Unit 2 Water

Choose the words or expressions and complete the passage ( 选择最恰当的单词或词语完成短文): Mrs Wilson, the middle-aged wife of a rich businessman, invited some of her friends to lunch. She was very anxious to try a new way of cooking

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