有关middle的知识点

1.有关The Middle Eastern Bazaar 的知识(英文的)

At the heart of every city in the Middle East, one can find a vibrant commercialhub that is the forerunner of today’s shopping malls—the bazaar. Originallyattached to a mosque complex, the bazaar continues to function as it has forhundreds of years providing a wide array of products and services arranged in amanner much different from what we are used to in the west.Products are arranged in markets or suq’s so that all the sellers of a particularitem are conveniently located in one area. For instance, all the gold shops are in one area, as are all the spice sellers and carpet sellers, in an arrangement that has not changed for hundreds of years. Dealers of like commodities came together to manage their trade…they set prices and working hours, regulated weights and measures, and enforced ethical trading practices. They didnot see themselves as competitors, but as members of a commercial community.Bargaining is an essential part of the bazaar! In the Middle East it is expected and is an exercise in unhurried hospitality as tea is consumed while a discussion of politics, family, and, yes, even the weather takes place. The negotiating of a price is lengthy and involves manners as well as dramatic skills to get the best price. Some of the most famous bazaars include:The Grand Bazaar in Istanbul is a labyrinth of vaulted roofedwinding streets and domed buildings that evolved over 250 years as asource of income for the Haghia Sofia Mosque. It covers an area of75 acres and consists of over 3,000 shops, 61 streets, ten wells, fourfountains, two mosques, and several cafes and restaurants. It employs25,000 people and a large number of street vendors.Istanbul’s Spice Bazaar or Egyptian Bazaar (many spices were imported from Egypt in thepast) is one of the oldest bazaars in the Middle East. It is the second largest covered shoppingcomplex after the Grand Bazaar and is part of the Yeni Mosque which was completed in 1600.Rents from the shops within are paid to help with the upkeep of the mosque. This is an “L”shaped building consisting of 88 vaulted rooms, which are almost all divided into an upper andlower story.The Grand Bazaar in Tehran is more than just a collection of shops. It is the heart of theIranian capital where behind the individual merchants is a vast network of economic andcommercial interests. It was here where the conservative bazaaris helped finance the Islamicrevolution that ousted the pro-western Shah and spread the message of reform smuggled in byfollowers of Khomeini.。

2.drag 有关的知识点

drag英音:[dræg]美音:[dræg] drag的中文翻译 以下结果由译典通提供词典解释及物动词 vt.

1. 拉,拖;拖着(脚等)行进

He grabbed her and dragged her away.

他抓住她,把她拖走了。 2. 用拖网等在。打捞[(+for)]

They were dragging the river for the missing child.

他们正用抓钩在河底打捞那个失踪的孩子。 3. 耙(地) 4. 【美】【俚】抽(烟),深深地吸

不及物动词 vi.

1. 拖曳 2. 慢吞吞地行进 3. 拖沓地进行

The battle dragged and the rainy season set in.

战争拖延着,雨季却来临了。 4. 用拖网等打捞[(+for)] 5. 吸[(+on)]

He dragged on the cigarettes as he wrote.

他一边写一边抽烟。

名词 n.

1. 拖曳,拉;缓慢费力的行进[C][U] 2. 阻力;摩擦力;累赘;拖后腿的事[S][(+on/upon)] 3. 【俚】令人厌倦的事物(或人)[S]

This class is a real drag. Let’s cut it.

这门课很无聊,我们逃课吧。

The party was a drag, so we left early.

聚会开得单调乏味,所以我们提早走了。 4. 【俚】抽烟[C] 5. 【俚】异性穿的服装;穿异性服装的舞会[U][C] 6. 【美】【俚】街道;道路[S1]

3.

我把初三的都给你.我也拿这个复习的.化合反应 1、镁在空气中燃烧:2Mg + O2 点燃 2MgO 2、铁在氧气中燃烧:3Fe + 2O2 点燃 Fe3O4 3、铝在空气中燃烧:4Al + 3O2 点燃 2Al2O3 4、氢气在空气中燃烧:2H2 + O2 点燃 2H2O 5、红磷在空气中燃烧:4P + 5O2 点燃 2P2O5 6、硫粉在空气中燃烧:S + O2 点燃 SO2 7、碳在氧气中充分燃烧:C + O2 点燃 CO2 8、碳在氧气中不充分燃烧:2C + O2 点燃 2CO 9、二氧化碳通过灼热碳层:C + CO2 高温 2CO 10、一氧化碳在氧气中燃烧:2CO + O2 点燃 2CO2 11、二氧化碳和水反应(二氧化碳通入紫色石蕊试液):CO2 + H2O === H2CO3 12、生石灰溶于水:CaO + H2O === Ca(OH)2 13、无水硫酸铜作干燥剂:CuSO4 + 5H2O CuSO4•5H2 部分化学方程式不在考试范围内~。

4.有关于圆的初中知识点总结

圆的有关性质 一,〖知识点〗圆、圆的对称性、点和圆的位置关系、不在同一直线上的三点确定一个圆、三角形的外接圆、垂径定理逆定理、圆心角、弧、弦、弦心距之间的关系、圆周角定理、圆内接四边形的性质 〖大纲要求〗 1. 正确理解和应用圆的点集定义,掌握点和圆的位置关系; 2. 熟练地掌握确定一个圆的条件,即圆心、半径;直径;不在同一直线上三点.一个 圆的圆心只确定圆的位置,而半径也只能确定圆的大小,两个条件确定一条直线,三个条件确定一个圆,过三角形的三个顶点的圆存在并且唯一; 3. 熟练地掌握和灵活应用圆的有关性质:同(等)圆中半径相等、直径相等直径是半 径的2倍;直径是最大的弦;圆是轴对称图形,经过圆心的任一条直线都是对称轴;圆是中心对称图形,圆心是对称中心;圆具有旋转不变性;垂径定理及其推论;圆心角、圆周角、弧、弦、弦心距之间的关系; 4. 掌握和圆有关的角:圆心角、圆周角的定义及其度量;圆心角等于同(等)弧上的 圆周角的2倍;同(等)弧上的圆周角相等;直径(半圆)上的圆周角是直角;90°的圆周角所对的弦是直径; 5. 掌握圆内接四边形的性质定理:它沟通了圆内外图形的关系,并能应用它解决有关 问题; 6. 注意:(1)垂径定理及其推论是指:一条弦①在“过圆心”②“垂直于另一条弦” ③“平分这另一条弦”④“平分这另一条弦所对的劣弧”⑤“ 平分这另一条弦所对的优弧”的五个条件中任意具有两个条件,则必具有另外三个结论(当①③为条件时要对另一条弦增加它不是直径的限制),条理性的记忆,不但简化了对它实际代表的10条定理的记忆且便于解题时的灵活应用,垂径定理提供了证明线段相等、角相等、垂直关系等的重要依据;(2)有弦可作弦心距组成垂径定理图形;见到直径要想到它所对的圆周角是直角,想垂径定理;想到过它的端点若有切线,则与它垂直,反之,若有垂线则是切线,想到它被圆心所平分;(3)见到四个点在圆上想到有4组相等的同弧所对的圆周角,要想到应用圆内接四边形的性质.〖考查重点与常见题型〗 1. 判断基本概念、基本定理等的正误,在中考题中常以选择题、填空题的形式考查学 生对基本概念和基本定理的正确理解,如:下列语句中,正确的有( ) (A)相等的圆心角所对的弧相等 (B)平分弦的直径垂直于弦 (C)长度相等的两条弧是等弧 (D)弦过圆心的每一条直线都是圆的对称轴 2. 论证线段相等、三角形相似、角相等、弧相等及线段的倍分等.此种结论的证明重 点考查了全等三角形和相似三角形判定,垂径定理及其推论、圆周角、圆心角的性质及切线的性质,弦切角等有关圆的基础知识,常以解答题形式出现.二,〖知识点〗 相交弦定理、切割线定理及其推论 〖大纲要求〗 1. 正误相交弦定理、切割线定理及其推论; 2. 了解圆幂定理的内在联系; 3. 熟练地应用定理解决有关问题; 4. 注意(1)相交弦定理、切割线定理及其推论统称为圆幂定理,圆幂定理是圆和相似 三角形结合的产物.这几个定理可统一记忆成一个定理:过圆内或圆外一点作圆的两条割线,则这两条割线被圆截出的两弦被定点分(内分或外分)成两线段长的积相等(至于切线可看作是两条交点重合的割线).使用时注意每条线段的两个端点一个是公共点,另一个是与圆的交点; (2)见圆中有两条相交想到相交弦定理;见到切线与一条割线相交则想到切割线定理;若有两条切线相交则想到切线长定理,并熟悉此时图形中存在着一个以交点和圆心连线为对称轴的对称图形.〖考查重点与常见题型〗 证明等积式、等比式及混合等式等.此种结论的证明重点考查了相似三角形,切割线定 理及其推论,相交弦定理及圆的一些知识.常见题型以中档解答题为主,也有一些出现在选择题或填空题中.。

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