托福写作中，绝不是词汇就可以一统天下的，语法问题也是高分必需要攻克的一道难关，想要写出逻辑清晰，遣词造句正确丰满的高质量托福作文，托福写作语法不可忽视。
　　一 基本规律(Basic rules)
　　1. Indefinite article (不定冠词)
　　我们用 "a ， an " 当我们不知道他是诸多人或事中的哪一个：
　　is one of many. ( 是许多个中的一个)
　　He is an artist.(=there are many artists)
　　is not unique. (不是唯一的)
　　I have just bought a book
　　has not been mentioned before. (之前没有提到过)
　　There was a new student in class today.
　　2. Definite article (定冠词)
　　我们用 " the " 当我们知道他是诸多人或事中的哪一个：
　　is unique (or unique in that context) (是唯一的)
　　The Australian Prime Minister. (=there is only one)
　　I looked inside， the engine was in a terrible state.(=there is only one engine， in this case)
　　has been mentioned before. (之前提到过)
　　The man gave me a ticket. I looked at it， and saw thatthe ticket was a single.
　　is defined by the phrase which follows it. (要被接下来的短语详细说明)
　　What is the new student's name?
　　3. No articles (无冠词)
　　我们不用冠词当我们普遍地提及事物的时候：
　　using plural or uncountable nouns (在使用复数或不可数名词时)
　　Do you like sport?
　　with the names of people or places， but there aremany exceptions (人名和地名的时候不用冠词，但是地名有许多例外，下文一一介绍)
　　He is Professor Jones
　　4. Fixed phrases ( 固定短语)
　　有许多固定搭配需要用或者不用冠词，我们应该来单独学习，他们包括：
　　a few at home at work at the beginning atthe end go to bed
　　go to the cinemas， shops，station in the world once a week
　　sixty kilometres an hour the next the other the other day
　　the same
　　二 经常发生问题的区域 (Areas that often cause problems)
　　1. Jobs (工作)
　　如果有许多人做这个工作我们用 a 或 an.：
　　My husband is an architect. (=there are many architects)
　　但是如果一个工作特别对应一个人，我们就要用“the”了：
　　He is having talks with the French foreign minister(外交部长). (=there is only one)
　　2. Superlative (最高级)
　　我们使用“the”在形容词最高级前面：
　　She is the best person for the job.
　　3. Last and next
　　有一些形容词如 “last” 和 “next ”同时可以用也可以不用定冠词“the”但是句意会发生变化
　　I saw James last night. (=the one before this one)
　　It is the last night of our holiday. (=the fanal one)
　　I will see you next week.(=the one after this one)
　　4. Institutions： school， prison， university， church，home， hospital
　　和以上机构连用时我们不用定冠词“the”
　　My sister had to stay in hospital overnight.
　　然而，如果我们指的是这个建筑，我们就要用“the”
　　Our flat is opposite the hospital.