句子写作原则
一、要写完整的句子
所谓完整的句子，一是要求结构完整，二是要求意义完整，要避免残缺句(fragment)和融合句(fud ntence)等。一个完整的句子是由至少包含一个主语和一个谓语的一组词构 成的。这个句子不论长短只能有一个中心思想。因此，考生在写作中应该注意一定要写完整的句子而避免写一些不完整的句子。总的来说，考生在写作中应该避免以下几种情况：
1．避免残缺句(fragment)
残缺句包括从属分句和短语，它们仅仅是句子的一部分，不能独立存在。要想使这些从属分句和短语有意义，必须把它们附属在相应的句子中，而不能另成一句。
1．1误用非谓语动词的残缺句
(1) [最美退役误] Bill working as if his life depended on that theme.
[正] Bill had been working as if his life depended on that theme.
(2) [误] Why does he call home once a week? To keep in touch with his family.
[正] He calls home once a week to keep in touch with his family.
人间如梦 1．2独立从句的残缺句
(1) [误] After I finished my homework.
[正] After I finished my homework, I began to watch TV.
(2) [误] There is still some likelihood of not succeeding in passing the exam. Although he tries very hard.
[绿色世界正] There is still some likelihood of not succeeding in passing the exam although he tries very hard.
1．3举例说明的残缺句
(1) [误] I look forward to holidays. For example, Thanks giving and Christmas.
[正] I look forward to holidays, for example, Thanks giving and Christmas.
(2) [误] I have many hobbies. Including tennis, chess, and golf.
比赛英文 .. [正] I have many hobbies, including tennis, chess, and golf.一泻千里
.1. 4以who，that和which引起的从句残缺句
{1} [误] That good books can give us pleasure and knowledge.
[正] It is claimed that good books can give us pleasure and knowledge.
(2) [误] There are some people. Who think that one should not hesitate to say no.
[正] There are some people who think that one should not hesitate to say no .
2．避免错误的省略
用词精辟是写出漂亮英文句子的一个窍门，但不能随意省掉一些属于固定搭配的或有助于理解句意的词。通常这些词决定着句子语法结构的完整和意义的完整，省掉就会出现句
子不完整的现象，影响读者理解。 常见的省略错误有：
2．1错误地省略部分谓语，会使句子结构失去平衡。
(1) [误] Cheerleaders always have and always will do their best to stimulate enthusiasm at the games.
[正] Cheerleaders always have done and always will do their best to stimulate enthusiasm at the games.
2．2介词的省略
有些词需要固定的介词与之搭配使用，当它们出现在并列结构中时，除非它们所需的介词是一致的，否则介词不能省略。
(1) [误] Mr. William has confidence and ambition for his son.
[正] Mr. William has confidence in and ambition for his son.
(2) [误] There are not sufficient brands for students to choo.
[正] There are not sufficient brands for students to choo from.
2．3比较级中必要词的省略
(1) [误] The suggestion you made is more feasible than Mary made.
[正] The suggestion you made is more feasible than the one Mary made.
3．避免连写句
当两个或两个以上的独立句子被错误地用逗号隔开或根本就没有标点符号相连时，就形成了连写句。有的书把用逗号分割成两个完整的句子而中间又无并列连词的句子叫逗号错接句，而把两个独立句子间无任何标点符号的句子叫融合句。改正这种句子可采用以下五种方法：
3．1中间用句号使各句子独立
(1) [误] She wrote him a love letter he answered it in person.
[正] She wrote him a love letter. He answered it in person.
小猴子荡秋千 3. 2 如果两个句子意思联系紧密年末,也可用分号分开分号后用小写字母开头
(1) [误] I was sick with the flu, I still had to study for the test.
[正] I was sick with the flu; I still had to study for the test.
(2) [误] The exam was postponed the class was cancelled as well.
[正] The exam was postponed; the class was cancelled as well.
3.3两个句子若平等重要,也可用并列连词and,but,or,for,yet,so等连成并列句。
(1) [世界上最小的婴儿误] Tom decided to stop smoking he didn't want to die of cancer.
[正] Tom decided to stop smoking, for he didn't want to die of cancer.
(2) [误] She had a wig on, it looked more like a hat than a wig.
[正] She had a wig on, and it looked more like a hat than a wig.
3．4可根据句子内容将其中的一部分用主从连词becau，when，while，since，even though，even if，as soon as，although, but，when和if等变成从句。
(1) [误] Andy forgot the time he misd the final exam.
[正] Becau Andy forgot the time, he misd the final exam.
或 Andy misd the final exam becau he forgot the time.
.3. 5根据句子内容，可以用分号再加上诸如conquently，therefore，likewi，furthermore，nevertheless或moreover等连接副词和逗号。
(1) [误] The item you requested is no longer available we are returning your check.
[正] The item you requested is no longer available; therefore, we are returning your check.
二、句子要符合规范
(一)语序的严格性
英语语序，即主、谓、宾、定、状等句子成分的位置，与汉语有差别，但差别不很大。英语属形构法，其句子的形成主要靠结构上的空间搭架，而且素以结构严谨著称。首先要将主谓语确立下来；若有从句就要抓住连接词。不管多复杂的句子，只要把它们的位置固定了，其他的成分就会按关系就位。而汉语为意构法，往往根据意思、逻辑或时间等顺序安排。所以在写英语时一定要打破原来汉语的语序，按英语结构安排句子形式。考生在写作中应该注意以下的几种倒装形式：
1.由so引起的表示前面所说情况也适用于另一个人(或东西)的句子(肯定句)
e.g. I am quite willing to help and so are the others.
e.g. Society has changed and so have the people in it.
