同学你好，其实对于不同的作文有不同的写作手法，你说的开头一定主题要点题，不要绕弯子，上来直说，可以背诵一些典型的开头句子。作文的话，其实我建议你可以学习以下新概念二册和三册，尤其是三册，里面有大量的好句子，背诵下来用在作文中会让你的作文增色不少呢！

一、层次安排 1. 破题：用一句话点破标题目的要义； 2. 正文：逐步写出论题的论据或叙事的过程； 3. 点题：用简要的话归纳文章中心意思；二、写作步骤 1. 审题：比如今天有一位网友提出men and women, who are better parent这么一个作文题目，经过审题，明确该题的题眼是better parent； 2. 罗列比较要点并用比较简单的句子草拟要点； a) Advantage and disadvantage of a man/father. i. A man is a father. He is sure to love his child but he likes to play a role of father. ii. A father does not pay too much attention to his child’s trifle matters. He is always careless about what his child wants or needs in everyday life. iii. He is always strict with his child. He is sometimes rude to him or her. b) Advantage and disadvantage of a woman/mother. i. Mother is careful. She is concerned about the bite and sup, wearing apparel and daily life of his child. ii. She is more womanishly fussy about everything unimportant than a father. c) Child’s opinion i. He or she likes Father’s magnanimous but hates his rudeness. ii. He or she likes to be shown every possible consideration from Mother but dislike her gossip. iii. A child prefers to be free to arrange his or her hours to do things rather than be fulsomely controlled and taught. 3. 把部分要点句按照逻辑关系改变为符合语法的复杂句 i. 使用关联词，如： □ 用on the one hand…, on the other hand…, in their child’s opinion (一方面，另一方面，在子女看来)连接三个层次； □ 用后面的连接手段把每个层次有机地组织起来：firstly, besides, moreover; to begin with, then, the most important或者instead of (不是…而是), while (与此同时), therefore (因此) ii. 把部分句子改写为复杂句， □ 使用because, when, although, so that, if等 □ 用不定式、分词或动名词改写。 4. 加上开头破题和结尾点题。

作文写作技巧：悬念，照应，联想，想象，抑扬结合、点面结合、动静结合、叙议结合、情景交融、首尾呼应（也叫前后呼应）、衬托对比、伏笔照应言志、白描细描、铺垫悬念、正面侧面比喻象征、借古讽今、卒章显志、承上启下、开门见山，烘托、渲染、动静相衬、虚实相生，实写与虚写，托物寓意、咏物抒情等。具体还得根据范文来分析理解。希望对你有帮助。

开门见山只是一种写法而已，具体您可以看一看一些好的范文，吸取一些经验。