报道类英语作文，用了Dear xxx作为开头，会被判定为离题吗

应该没有Mz这样的简写吧，是Ms吧。其实就我所接触的英文函电中，以dear开头居多，尤其是初次联系的人。经常往来的信件还有熟人倒无所谓了。

不用的
如果你知道他的姓，直接用Mr./ Miss./Mz（商业/正式场合）
如果不知道，用Dear Sir/Madam （商业信件）
或者直接写名字也可以的（朋友）
如果用dear的话，感觉是满亲密的关系的，未见面但是有过接触是可以，但如果比较正式的场合，还是不用为好
总之，要靠关系来选择用词了

不是,DEAR,是亲爱的之意,不是你好的意思.

网上误导太多.一楼的回答值得探讨.

其实,很多问题可以查书籍找到答案.书信有专门格式,商业函件,给不相识或不熟悉的人士写信,要用Dear,是格式需要,丝毫没有"亲爱的"之意, 如:
Dear Mr. Peter Smith:
Dear Mrs. Helen Palmer:
Dear Ms. Amanda Brown:
Dear General Manager: (不知对方姓名时用Dear加职务)
Dear Sir or Madam: (不知对方姓名或职务)

如对方比较熟悉,用Dear加名,可不用称谓和姓,如:
Dear Bob:
Dear Sally:

如想表示亲昵关系,即"亲爱的",可加My,如:
My dear Bob:
My dear Sally:
My dearest Michelle:

日常生活中常见便条之类,匆匆而就,书写者往往不讲究严谨格式,往往就只用名,属非规范化,或随意体,家庭成员间,同学同事间,或要好朋友间可.不在社交书信格式之列.社交信件和商业函件应遵循一定传统格式.

不信,写一封求职信寄美国公司,略去Dear试试,保证石沉大海.

信：Dear XXX(你朋友的名字):

Good day!I am so glad to hear you got the scholarship. Congratulations! In my opinion, the scholarship is the best rewards for your hard work and aspirant spirit.In my memory, you always got high score in the examination and, of course, received many appraise from teachers when we are in the same class.Moreover,you helped me a lot!When I came to some problem, no matter what, you would try your best to do me a favor. I am so appreciated, till now. You are my good example and progressional direction.

XX, my sincere friend. Wish you enjoyed your awards,this is your glory, and I also hope you could get more success in future!

Sincerely yours,
XXX(你的名字)

演讲稿
Ladies and Gentlemen, Good morning! I’m very glad to stand here and give you a short speech. Man’s life is a process of growing up, actually I’m standing here is a growth. If a person’s life must constituted by various choices, then I grow up along with these choices. Once I hope I can study in a college in future, however that’s passed, as you know I come here, now I wonder what the future holds for me. When I come to this school, I told to myself: this my near future, all starts here. Following I will learn to become a man, a integrated man, who has a fine body, can take on important task, has independent thought, an open mind, intensive thought, has the ability to judge right and wrong, has a perfect job. Once my teacher said :” you are not sewing, you are stylist; never forget which you should lay out to people is your thought, not craft.” I will put my personality with my interest and ability into my study, during these process I will combine learning with doing. If I can achieve this “future”, I think that I really grow up. And I deeply believe kindred, good-fellowship and love will perfection and happy in the future. How to say future? Maybe it’s a nice wish. Lets make up our minds, stick to it and surely well enjoy our life.
格式：开头：hello!everyone
结尾：that's all ,thank you

倡议书格式：同上
报导：Liu Xiang won it and history's been made.

The 21-year-old claimed the gold medal of the glamorous men's 110m hurldes before a capacity crowd of 70,000 at the Olympic Stadium in the 28th Olympic Games in Athens Friday.

He clocked a stunning 12.91 seconds to equal the world record set by Britain's Collin Jackson in 1993.
直接说正文就可以

A Picnic
It was a sunny day. We decided to have a picnic outside the city. In the morning, we took an early bus to Nanhui. It was quite a colorful world. there were GREen trees, orange leaves,red peach blossoms. At noon, we reached the place, we sat by the river bank and took out a lot of things, such as bread, orange juice, apples, cakes, eggs and so on. But all of a sudden, it began to rain. Unluckily there was no shelter nearby. We had to take a bus to go back home in a hurry.
What an unforgettable picnic it was!

这是我们刚考完老师给我们的一些范文这是针对中考的也许有用吧
(1)
There are many important things in my life, like final exams, birthdays and so on. Among them, the important one is one contest. Once my mother told me to attend an English speech contest. At that time I was shy and had few words. It was impossible for me to do that. But my mother said, “Nothing is impossible . Just believe yourself.” In the end, to my surprise , I did well in the contest. People who ever looked me down also said congratulations to me. Since then, I became brave and confident . This thing is so important because it gave me courage to face the difficulty in my life.
(2)
Besides, even though I never set a foot on ship or a train, reading lets me be an armchair traveler to get much knowledge from every corner of the world . In one word, reading is the source of cheerfulness and wisdom in my life. It is so important that the things I’ve got from it can lead me to reach a new height in my study and life.
(3)
There are many important things I need to do in my life, such as going back to my primary school, visiting my hometown , taking the admission test and so on . But saying thanks to my parents is the most important things among them. My parents gave me life and took good care of me . If I’m a leaf , they are the trees that provide me with foods. If I am a boat, they are the harbours that protect me from the storm.They always encourage me and bring me confidence so that I feel I’m on the top of world. No words can express how much we love each other. So it’s important for me to say thanks to my parents.
(4)
In everyone’s daily life, there are some important things which influence our whole lives, however, for me , the thing that is considered to be the most important one is reading books. First of all, reading gives me a chance to experience the life in the past and takes a look at the future , In addition, it is a perfect way to relax myself. It provides me with great joy and happiness. When I am under a cloud of stress, reading is like the sunshine which can break through the darkness. In one word, reading books brings me a wonderful view of the world and takes away my worries at the same time so that it is the most important thing in my life.
So I want to celebrate a birthday party for her to show my love .
So to celebrate a birthday party for her to show my love is the most important thing in my life.
（5）
Love, friendship, the sense of happiness, all of these are the important things in my life. In my mind, however, love is thought to be the most precious one of all. Nobody can exactly describe how magic love is , but that is the truth. When we feel upset, the love from friends turns tears into smile; when we are in trouble, the love from parents and teachers fills us with courage to be brave. Love is like air, having no shape or taste, but is needed everywhere.

But I think the most thing is to deal with pressure . As we all know, our life is full of pressure. So it’s necessary for me change pressure into power. In my opinion, nothing can be done well if I can’t deal with the pressure well. On the whole, since the more pressure I have , the better I’ll do ，to deal with pressure well is the most important thing in my life.