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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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八年级·英语·句子翻译Unit 1 It allows people to get closer to them .

科学家们正在做大量的研究，帮助大熊猫繁殖更多的幼崽，帮助幼崽生存． ______

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八年级·英语·句子翻译Unit 1 It allows people to get closer to them .

如今大约只有1600只熊猫生长在野外． ______

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八年级·英语·句子翻译Unit 1 It allows people to get closer to them .

让我们看看还能做什么来救助更多的动物． ______

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八年级·英语·句子翻译Unit 1 It allows people to get closer to them .

村庄和农场正在不断扩张，侵占他们的领地和森林． ______

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八年级·英语·句子翻译Unit 1 It allows people to get closer to them .

许多野生动物没有安全的栖息地． ______

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七年级·英语·阅读理解Unit 3 Language in use.

Lots of families in Great Britain have one or more pets(宠物)． Dogs are the most favourite pets and there are about 6 million(百万)of them in Great Britain.The second favourite pets are cats(about 5 million)and the third fav

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七年级·英语·阅读理解Unit 3 Language in use.

Come and meet some animals in London Zoo. Name: Lumpur Animal type: Asian tiger Age: 11 Weight: 130 kilos Favourite food: pork Name: Ellish Animal type: Australian kangaroo Age: 6 Weight: 75 kilos Favourite food: grass N

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七年级·英语·填空题Unit 3 Language in use.

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 are a lot 【 1 】 animals in the zoo.I like 【 2 】 (monkey)best.They are very clever.These monkeys come 【 3 】 Yunnan.They can 【 4 】 (climb)trees quickly( 快地 )and

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七年级·英语·填空题Unit 3 Language in use.

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 ) 。 Welcome to Los Angeles( 洛杉矶 )Zoo ！ Let's see koalas 【 1 】 ( 首先 ) ． They are from Australia and children like 【 2 】 ( 它们 ) very much.The kangaroos 【 3 】 ( 来自 )from Australia too.T

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七年级·英语·填空题Unit 3 Language in use.

用括号中所给单词的适当形式填空【1】This panda __ (come)from China. 【2】Cats like __ (play)with balls. 【3】This zoo has many __ (kind)of animals. 【4】The tiger usually __ (eat)6 kilos of meat a day. 【5】The man is from __.He is an __.(Africa

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七年级·英语·单词拼写Unit 3 Language in use.

根据句意及首字母或汉语提示完成单词【1】I'm s__ that he is a teacher. 【2】I want to c__ the bird but I can't. 【3】Jack has friends all over the w__. 【4】She watches TV when she stays __ (独自地)．【5】He is very t__.He is about 1.90 metres(米)．【6】

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九年级·英语·阅读理解Unit 4 All about films and TV

A Japanese toy maker declares that they have developed a gadget that translates dog barks into human language and plans to begin selling the gadget-under the name of Bowlingual-in U.S.pet stores and gift shops this summe

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九年级·英语·阅读理解Unit 4 All about films and TV

Even at school there had been an unhealthy competition between George and Richard. I'll be the first millionaire in Coleford!" Richard used to say. "And you'll be sorry you knew me," George would reply, " because I'll be

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九年级·英语·单词造句Unit 4 All about films and TV

all,his,a,the,keeps,good,time,person,promise （连词成句） ______

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九年级·英语·句型转换Unit 4 All about films and TV

Finally,they succeeded in finding a perfect place for the party. （保持句意不变） Finally,they ______ ______ find a perfect place for the party.

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九年级·英语·句型转换Unit 4 All about films and TV

Learning to make plans is a very important skill for young people. （改为反意疑问句） Learning to make plans is a very important skill for young people, ______ ______ ？

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九年级·英语·句型转换Unit 4 All about films and TV

He will be late if he doesn't hurry up. （保持句意不变） He will be late ______ he ______ up.

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九年级·英语·句型转换Unit 4 All about films and TV

Mum asked, "What has happened to you,Lily？" （改为间接引语） Mum asked Lily ______ ______ ______ to ______ .

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九年级·英语·填空题Unit 4 All about films and TV

He preferred to be an actor rather than be a ______ . （direct）

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八年级·英语·句子翻译Unit 2 She was thinking about her cat.

他正在考虑做一个飞机模型． He was thinking of______．