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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·任务型阅读-多任务混合Unit 1 The population of China is about 1.37 billion.

Running away is a serious problem．There are lots of runaway and homeless kids living in the streets around the world．孩子们为什么想离家出走呢？ ★Some kids run away because they have problems with their families． ★Some kids run away

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八年级·英语·阅读理解Unit 1 The population of China is about 1.37 billion.

Want to do some volunteer work？Here are some"green"opportunities． FUN Society FUN Society is an organization started by some young people to encourage the young to protect the environment．It is preparing for some summer

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八年级·英语·填空题Unit 1 The population of China is about 1.37 billion.

Henry Bond was about seven years old when his father died．His mother found it (1) to support the large family．However，she tried her best to do so．Also，she (2) Henry，the eldest son，to school． At one time，Henry needed a gr

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八年级·英语·选择题Unit 1 The population of China is about 1.37 billion.

- Boy， your head teacher has set up a WeChat group． Could you tell me ______？ - OK． I'll teach you． It's so easy．（）

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八年级·英语·选择题Unit 1 The population of China is about 1.37 billion.

Some small factories and lots of workers lost their jobs．（）

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八年级·英语·选择题Unit 1 The population of China is about 1.37 billion.

We couldn't see the road clearly the heavy snow．（）

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八年级·英语·选择题Unit 1 The population of China is about 1.37 billion.

My father is thinking hard．He wants to the trouble．

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八年级·英语·选择题Unit 1 The population of China is about 1.37 billion.

Air pollution has become a big ．（）

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八年级·英语·填空题Unit 2 The weather is fine all year round.

serve celebrate peel fill they Tomorrow is Herry's birthday． Can you come and ______ it with him？ Oranges are really healthy for us． And don't forget ______ them before you eat． Now all the bananas are here． Let's put __

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八年级·英语·填空题Unit 2 The weather is fine all year round.

There are many people in the world now． There (1) （be） a lot more people next century． The earth will be very (2) （crowd）so there will be a little room (3) each person． Maybe there will be only standing room on the earth

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八年级·英语·填空题Unit 2 The weather is fine all year round.

What are your (1) （预言）about the future？let me tell you my ideas．I think people will have robots as (2) （仆人）in their homes． They can help do everything that is boring or (3) （危险的）．They will be very helpful for (4) （人类）．pe

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八年级·英语·填空题Unit 2 The weather is fine all year round.

paper，fly，factory，pollute，possible He doesn't have much time now，so it's ______ for him to finish the difficult job． I need a piece of ______ to write on． ______ may be the biggest problem in the world． Lots of people ho

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八年级·英语·填空题Unit 2 The weather is fine all year round.

Wendy was only 11 years old， but was very responsible and she loved children．"I want (1) （be）a great babysitter when I grow up，" said Wendy． One day， Wendy and her mom went shopping and (2) （meet）Mrs．White， one of their

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八年级·英语·填空题Unit 2 The weather is fine all year round.

Resolutions are (1) （承诺）to yourself．when we make resolutions at the (2) （开始）of the year． We hope that we are going to make our lives better in the coming year．Some resolutions are about (3) （身体的）health． Many resolutions

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八年级·英语·填空题Unit 2 The weather is fine all year round.

week different discuss real well They are having a meeting in the classroom． They want to ______ what to do for their vacation． They make a ______ plan for schoolwork． Tom does ______ in math than English． There are many

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八年级·英语·填空题Unit 2 The weather is fine all year round.

Now there are all （61）______（kind） of talent shows in China．Many people make their dreams （62）______ （come） true through them．For example，Li （63）______Chongqing joined China's Dream Show．She （64）______（teach） English in

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八年级·英语·句子翻译Unit 1 It might snow.

明天天气会怎么样呢？（what）______

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八年级·英语·句子翻译Unit 1 It might snow.

你出去的时候不要忘了锁门．（lock）______

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八年级·英语·句子翻译Unit 1 It might snow.

游览香港的最佳时间是什么时候？（when，Hong Kong）______

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八年级·英语·句子翻译Unit 1 It might snow.

今天可能有风．（might）______