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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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Word Bank:band乐队;pub酒吧;babysitter保姆;occasional偶尔的 Noticeboard A.Computer problems? Experienced IT engineer will sort out problems with home computers (PCs and Macs).Phone \’the Computer Doctor\’ now fora free estimate- 0
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Oh,I get it —you want me to do all the work ________you sit at home doing nothing.( )
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(54)M friends is a skill like other skills.It improves with practice.If you want to meet people and make friends,you must be willing to take some (55)a . You must first go where there are many people.You won't make frien
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Do you know Earth Hour?Do you know when Earth Hour 2012 (60)t place? Earth Hour is a global(全球的) event (61)o by the World Wildlife Fund.It's (62)h on the last Saturday of March every year.People turn off their lights for
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Nowadays,we can find advertisements almost (54)e we go.An advertisement uses words and (55)p to attract people to buy goods or (56)s .This kind of advertisements is (57)c commercial(商业) advertisements.Newspapers,magazine
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True friends are hard to find.Often you thought you could believe in someone,b (66)later he or she may let you down (让你失望). A true friend is sometimes who will always be there for you.Through good times or b (67)times,th
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The manager came into the office,followed by a girl.The girl was so pretty that all the workers s (71)to look carefully at her.Mr.Ball i (72)the newcomer to his workmates.The girl asked them to help her.Then she sat down
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It's not easy for us to forgive(原谅) someone who has ever hurt you or made you disappointed.(86)H ,several new studies say that it could be good for your health.When you think of forgiveness,you probably don't think of it
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Kites have a history of about 2,300 years in China.It is said that kites were first invented by Mozi in the Warring States Period.A kite is often made of bamboo or wood sticks and paper or silk and in the shape of just a
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Started along the Huaihe River in eastern China,Flower Drum Lantern dance is well-known(1)______its bright colors,different forms and cheerful mood. As a traditional treasure in China,the dance has a very long history.It
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Complete the following sentence as required. ( 根据所给要求,改写下列句子 ) 【 1 】 He apologized to me for being late for the meeting this morning.( 保持原意 ) He _______ an _______ to me for being late for the meeting this morning. 【 2 】
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Look! A big modern building _________ in our city.
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适当形式填空 【1】Which language is the most widely___(speak) in the world? 【2】No permission___(give) for anybody to enter the building. 【3】Some of the swamps have been___(pollute). 【4】The sick man___(operate) on now. 【5】We hope
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Fill in the blanks with the proper form of the given verbs. apologize, laugh at , strike , buy, be, live with. 【1】Our initial plan was ______professionally printed wedding inventions. 【2】As a good actor, you'd better not
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Complete the following sentences as required (根据所给要求完成下列句子 , 每题空格限填一词) 【 1 】 The young man denied that he had stolen the necklace. (改为一般疑问句) _______ the young man _________ that the had stolen the necklace? 【 2 】 My uncl
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许多明信片正在这家商店出售。 Many postcards are ______________ ______________ in this shop.
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--___ did you stay in China? -- For about two weeks.( )
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这灰蒙蒙的天表明一会儿就要下雨. The ______ shows that it will rain later.
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can\’t,I,operas,stand,soap ______.
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How do you get to school?Do you walk or ride a bike?Do you go by bus or by train?F(56) many students,it is easy to get to school.But for the students in one small village in China,it is d(57) .There is a very big river b
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