1 1 1 2007_______________ +______________+...+________________=___________(X+1) (x+2) (x+2) (x+3) (x+2007)(x+2008) 3x+6024

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1112007_______________+______________+...+________________=___________(X+1)(x+2)(x+2)(x+3)(x+2007)(x

1 1 1 2007_______________ +______________+...+________________=___________(X+1) (x+2) (x+2) (x+3) (x+2007)(x+2008) 3x+6024
1 1 1 2007
_______________ +______________+...+________________=___________
(X+1) (x+2) (x+2) (x+3) (x+2007)(x+2008) 3x+6024

1 1 1 2007_______________ +______________+...+________________=___________(X+1) (x+2) (x+2) (x+3) (x+2007)(x+2008) 3x+6024
1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+2007)(x+2008)=2007/(3x+6024)
1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3)+...+1/(x+2007)-1/(x+2008)=2007/(3x+6024)
1/(x+1)-1/(x+2008)=2007/(3x+6024)
2007/(x+1)(x+2008)=2007/(3x+6024)
x^2+2009x+2008=3x+6024
x^2+2006x-4016=0
(x+2008)(x-2)=0
x1=-2006
x2=2

解释这句话:兄以动身三日即到(1)__________ (2)__________(3)__________ (4)__________(5)__________ (6)__________ 1_________ 2__________ 3__________ 写出下列物质的化学式及分类(1)生石灰__________、__________(2)熟石灰__________、__________(3)纯碱__________、__________(4)干冰__________、__________(5)氮气__________、__________(6)盐酸__________ 1.写出与下列词语同类的两个词语(1)滚烫的 生硬的 __________ __________(2)香喷喷 甜蜜蜜 __________ __________(3)雪白雪白 滚圆滚圆 __________ __________ (4)驰名中外 举世瞩目 __________ __________2 1.计算机网络是__________与__________结合的产物.2.“网络”主要包含__________、__________、__________和__________四个方面.3.计算机网络最主要的功能是资源共享和通信,除此之外还有__________、______ 英语句型转换 1、He is pround of his new carHe is __________ __________ __________a new carHe is __________ __________ he has a new car2、He sailed for AustraliaHe __________ __________ __________ Australia 1.睾丸产生的精子排出体外需依次经过的器官是__________、__________和__________;卵巢产生的卵子若不受精而排出体外,需依次经过的器官是__________、__________和__________. 用待定系数法求反比例函数解析式的一般步骤: (1)__________ (2)__________(3)__________ 提问=.声音的三个特征是__________、__________、__________. 2.物体在1s振动的次数叫__________,音调 1、质量的定义是________________________________________________________.质量的单位有__________、__________、__________、__________.2、质量的单位换算关系为:______________________________________________.3、实验室测质 成语接龙(照样子,写成语)1、馋涎欲滴__________ ___________ ___________ 2、无地自容__________ ___________ ___________3、见利忘义__________ ___________ ___________4、利欲熏心__________ ___________ ___________ 1.-(- 5)的倒数是_________,相反数是__________,绝对值是__________. 一、写出词语的意思.(1)朴实无华:__________.默默无闻:__________. 1:__________,夏至雨绵绵.2:多树多林,__________;无树无林,___________.急用啊, 一元一次方程解法的一般步骤依据是:(1)去分母,依据:__________;(2)去括号,依据:__________;(3)移项,依据:__________;(4)合并同类项,依据:__________;(5)系数化为1,依据:__________ 名词练习I.将下列名词归属各类:pork child chick beer customer direction foot history grass hobby leaf stamp swimming science yard wristwatch sea love coffee paper (1)water __________ __________ __________ __________ __________ ______ (1)描写海浪的词:_____________ _________ __________ _________.(2)照样子写词语:拂拭 ________ __________ __________ __________.(3) 照样子写词语:前俯后仰 _______ ___________ __________ ________. 1、He is very careful when he drives(对very carefu提问) _______ _______ _______when he drives?2、They are going to take sandwiches with them.(对sandwiches 提问)__________ __________ they __________ __________ __________ with them?