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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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九年级·英语·选择题Unit 1 It’s more than 2,000 years old.
My mother doesn't agree ______ me to make friends with the boy．
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九年级·英语·选择题Unit 1 It’s more than 2,000 years old.
The river near our village is ______. It’s dangerous to swim in it.
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九年级·英语·填空题Unit 1 It’s more than 2,000 years old.
Ⅰ．用所给单词的正确形式填空 【1】My mother was ______（cook）when I got home yesterday. 【2】—Can you think of any ______（wonder）in the world? —Yes, such as the Great Wall, the Pyramids and so on. 【3】Do you want to join in the ______（discu
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九年级·英语·任务型阅读Unit 3 Language in use
April Fool's Day is on April 1st．People can play jokes on others on this special day．If you succeed，you usually laugh and say “April Fool！” The person who has been fooled by you laughs，too，and he will never be angry with
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九年级·英语·选择题Unit 3 Language in use
I won't do it ______ you come back．
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九年级·英语·选择题Unit 3 Language in use
Please give the ticket to her ______ you see her．
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九年级·英语·选择题Unit 3 Language in use
The woman began to dance ______ she was a little girl．
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九年级·英语·选择题Unit 3 Language in use
Yesterday evening, I _____ along the street when I suddenly met my maths teacher.
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九年级·英语·选择题Unit 3 Language in use
______it was 12 o'clock,we all shouted “Happy New Year”．
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九年级·英语·选择题Unit 3 Language in use
It is a wonderful film ______too much fighting．
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九年级·英语·填空题Unit 2 We have celebrated the festival since the first pioneers arrived in America
Every year，we celebrate Teachers" Day in honor of the teachers who spend so much time teaching us so many things．It is on the (1) （第十）day of September． This year，we had half a day (2) （不上课）．It started with a school meeti
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九年级·英语·补全对话Unit 2 We have celebrated the festival since the first pioneers arrived in America
补全对话 A: 【 1 】 What did you do today? B: We planted trees just now. A: Oh, I’ve remembered. 【 2 】 Where did you work? B: At the foot of the hill. A: Which hill? B: The one on the other side of the river. A: How did you ge
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九年级·英语·选择题Unit 2 We have celebrated the festival since the first pioneers arrived in America
We usually watch the basketball game ______ TV and enjoy ______ very much.
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九年级·英语·选择题Unit 2 We have celebrated the festival since the first pioneers arrived in America
The kitchen is always ______ room in our house because we all help ______ the food.
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九年级·英语·选择题Unit 2 We have celebrated the festival since the first pioneers arrived in America
—When did you ______ in America? —Twenty minutes ago.
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九年级·英语·选择题Unit 2 We have celebrated the festival since the first pioneers arrived in America
We have lived in Beijing ______ we came to China in 1989.
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九年级·英语·选择题Unit 2 We have celebrated the festival since the first pioneers arrived in America
The problem is ______ difficult. You needn’t spend ______ time on it．
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九年级·英语·填空题Unit 2 We have celebrated the festival since the first pioneers arrived in America
用所给单词的适当形式填空 【1】Thanksgiving Day ______ (celebrate) on the fourth Thursday in November. 【2】We should give thanks to the people for ______ (help) us． 【3】The ______ (one) pioneers from England arrived in America by ship in
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九年级·英语·阅读理解Unit 1 My family always go somewhere interesting as soon as the holiday begins.
This is a song millions of Americans will hear on New Year's Eve．It is called Auld Lang Syne （《友谊地久天长》）．It is the traditional music played during the New Year's celebration．Auld Lang Syne is an old Scottish poem．It tells
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九年级·英语·选择题Unit 1 My family always go somewhere interesting as soon as the holiday begins.
There is ______ in today's programme，is there?
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