请大牛们帮搞定一下一篇英语作文哦 !

Newspapers still play an important role on（in） people’s mind.From my part/.point of view,this is probably a good phenomenon,even though the impact of the internet and television is increasingly greater.(even though is not appropriate here,try to change this sentence,)
In this informative(information) age,newspapers provide us of(delete) realistic up-to–the–minute information,.Through reading newspapers,people can be informed of current affairs of the world.Also,it helps broaden people’s horizons.The articles with objective and balanced ideas encourage people to think critically.Individuals with a good reading habit have a broader view of life and better personal resources to draw on.In addition to that,the in-depth analysis of the social phenomenon which other medias are lack of (lack)are provided.The insights into the current affairs tend to reveal the fundamental reasons of some phenomenon and directly tell us the social trend.
However,despite those advantages ,newspapers may have negative impacts on people.Some advertisements on newspapers are too commercialized.That is to say,a product may look geogours and good qualily on the picture.As a result,people who are too dependent on newspapers may buy goods without consideration.
In conclusion,a coin has two sides.(just as a coin has two sides,it is hard to...)It is hard to say obsolutely whether the influences newspapers on people positive or negative.But as for my part,the advantages of newspaper overweigh its disadvantages.
you have a reasonable mastery of the language.and minor mistakes do occur.
the biggest problem with this essay is that you do not address the question (positive or negative) in a straightfoward way.
Try to add a topic sentence to each paragrah,which can make you essay look better.
This essay can reach the band of 6 .

设此直线方程为Y=kX+b,即 kX+b-Y=0,带入以上四点就可以得到四个方程,下面矩阵化：
令A=[1 1；2 1；3 1；4 1],A为4*2矩阵；B=[1.3 ；1.8 ； 2.2 ； 2.9],B为4*1矩阵；
X=[k ；b],X为2*1矩阵,那么四个方程就可表示为AX-B=0,此方程可能没有解
根据最小二乘法所要满足的代数方程A'AX=A'B,
既得两个方程：30k+10b=23.1 ；10k+4b=8.2
解得k=0.52,b=0.75,
所以最佳直线方程为Y=0.52X+.075

后面这空表达的是这个OUTCOME的唯一性,如果选了uniquely,表示这个解释的唯一性,不对.应该是能被合理的解释,才是对结果的唯一性表达.
注意后面的yet,表示转折,所以要填和accidentail相反的意思,所以E也错,故就是F对

1、首先,作为一种安全高效的通信机制来说,量子通信用于电子商务领域显然有着迫切的需求,量子通信逐步替代微电子通信貌似是一种趋势；
2、但从成本和技术的角度,量子通信应用于安全电子商务还有很长的路要走.
总之,可能性必然存在,现实性有赖于方方面面的发展.

模拟法就可以了，开个数组，在纸上写写画画，找个简单的规律，就可以了

第一题：0.05也就是5%,即要求精确到5%,所以是15%,如果是18%,则化成20%.
第二题是书上印刷错误,这个很多人讨论过,勉强给出的答案实在是太牵强.
第三题,one box 要15分,第二个4分,也就是说两个一共19分,91除19除不尽,再尝试（91-15）/19=4,所以买了4*2+1=9个

一般来说可能是约束矛盾 具体地要具体看
如果你觉得一定有可行解 可以随便找一组可行解然后代入看看

看到你新贴出的图片了.
1、等式两边同时乘上c^2：
a^2+b^2+3c^2=2ac+2bc*√2
即：（a^2-2ac+c^2）+[b^2-2bc*√2+(c*√2)^2]=0,
即：(a-c)^2+(b-c*√2)^2=0,
（a-c）^2≥0,(b-c*√2)^2≥0,
因此只有(a-c)^2=0,(b-c*√2)^2=0,
即：a=c,b=c*√2
因此：a^2+c^2=b^2
因此△ABC就是直角三角形.
2、连接BP,交EF于M；作FN平行AD,交AB于点N
则FN垂直AB,FN=AB
易证B、P关于EF对称,则EF垂直BP,
因此∠EBM=∠EFN=90-∠BEF,因此三角形ABP全等于NFM,
因此EF=BP=√(AB^2+AP^2)=√(25^2+6.6^2)=√668.56≈25.86
（或者：EF=BP=√(AB^2+AP^2)=√[25^2+(6√6)^2]=√841=29.看不懂AP的长度究竟是多少,只好两种结果都写上了）
3、取EC中点D,连接AD
设EC长=2X,则BE=3X,AB=8X,ED=DC=X,
则ED=3X+X=4X,BC=3X+2X=5X
又,∠B=60°,因此易证AD垂直BD,因此AD=X*4√3,因此AE=AC=√(AD^2+DC^2)=7X,
因此AE：AC：BC=7X：7X：5X=7：7：5.
4、
5、点M是三角形ABC三条中线的交点,则点M是三角形ABC的重心,
三角形重心的性质：重心和三角形3个顶点组成的3个三角形面积相等.
作BP垂直AC,交AC于点P,交EF于点Q,连接MA、MB、MC
则S△MAB=S△MAC=S△MBC=(1/3)*S△ABC,
因此ME=BF=AB/3,MF=BE=BC/3,
因此EF/AC=BQ/BP=1/3,
因此PQ=(2/3)*BP
因此S△DEF=EF*PQ/2=(1/3)*AC*(2/3)*BP/2=(2/9)*AC*BP/2=(2/9)*S△ABC.

1、词汇记忆做到“四看”比较有效：
看词形：看准确单词的拼写形式,特别是特殊字母、字母组合等；
看读音：将单词里面的字母、字母组合与所发的音对应起来,记住发音特殊的单位或形式；
看词性：看清楚词的词性,是名词、动词,还是形容词、副词、介词等.因为词性决定了词的用法；
看意思：看明白词的汉语意思,以便记忆和灵活运用.
2、“总结归纳”有助于掌握词的辨析和对比：
比如,以汉语意思为中心,总结所学的词汇.表示“看”的词汇：
look：看,只表示动作,不强调结果
see ：看见,看到；强调结果
look for：寻找,只表示动作,不强调结果
find：找到；发现 ；强调结果
watch：仔细观察；观看
notice：（无意识、不经意的）注意到；发现
observe：（有目的的、带有研究性的）观察
glance：扫视；撇看
stare：盯着看；注视
glare；瞪着眼睛看
glimpse：瞥一眼
catch：瞧见；撞见
看电视：watch TV
看书：read books
看报纸：read newspaper
3、“分类记忆”条理清晰,效果显著：
按照一定标准,将所学单词分成不同类别,记忆效果非同寻常.例如,【表示人体部位的词】：
hair
head
forehead
ear
face
eyes
nose
eyebrown
eyelid
eyeball
mouth
tongue
throat
neck
shoulder
arms
chest
back
waist
knee
leg
ankle
foot
toe
4、词汇记忆原则：
【词不离句,句不离篇】
【记单词不如背短语,背短语不如记句子；记句子不如读篇章】.因此,词汇学习和英语知识学习,最好【结合语境,放入篇章,熟读深思,练习运用】,以便做到掌握和应用.

个人浅见,仅作交流.希望有助于你.
祝你开心如意!

1 = U
2 = B
3 = Q
4 = C
5 = F
6 = R
7 = Y
8 = T
9 = X
10 = H
11 = L
12 = D
13 = A
14 = W
15 = I
16 = V
17 = E
18 = J
19 = N
20 = G
21 = K
22 = P
23 = M
24 = S
25 = O

关于你前面自己些的,有一些错误给你说下吧.已经帮你改正了
As a mainland student,I am really attracted attracted by HKU(原因：主语是I,所以主句用HKU就不对了) Meanwhile,at the approach of entering HKU,I find the further steps I take towards her,the tighter I get attached to her.The rich history,extraordinary teaching capacity and international learning atmosphere allow me to learn functional skills and perfect myself.
下面这段是你即将做的吧,所以时态应该用一般将来时
I will choose Business and Economics as my first will because the study of economics provides explanations and predictions,as well as more universal theories,which can help me explain human behavior,and offer insight into the validity of the various political choices competing for our favor.
I was absent from high school for almost a year.And the experience make who I am today.Mathematical competition gave me quick thinking.Debate competition made my expression wiser .Being a monitor made me more careful and responsible.And the pain from the car accident makes me strong and brave.All of these give me a persevering heart,which I will follow after and keep moving forward to HKU bravely.I do hope I could have the opportunity to study in HKU.Thanks you for your valuable patience and time.