There be 结构
错误表达：There have many people believe that computers are useful.
正确表达：There are many people who believe that computers are useful.
（不存在There have的形式，而且There be结构后不能再加谓语动词。） 情态动词
错误表达：We should be take effective measures.
正确表达：We should be take some effective measures.
（情态动词必须加一个动词原形，没有should be do这种结构。）
不一致
错误表达：正确表达：（one是单数第三人称，因而本句的have 应改为has；同理，want应改为wants。本句是典型的主谓不一致。）
时态问题
错误表达：正确表达：） 语态问题
错误表达：正确表达：悬垂修饰语
错误表达：”的逻辑主语不清楚。）
“Serving in the army” 的逻辑主语不清楚。）
词性使用
错误表达：Nobody can negative the importance of education.
正确表达：Nobody can deny the importance of education.
（negative系形容词，误作动词。）
介词短语加了句号
错误表达： With the development of society. people begin to realize the
importance of education.
正确表达： With the development of society, people begin to realize the
importance of education.
（介词短语不是句子，不能加句号。）
句子不完整
错误表达：The question whether the internet is a blessing or a curse.
正确表达：The question whether the internet is a blessing or a curse is now being
discussed heatedly.
（在句子中使用从句时，会出现缺少谓语的情况。）
固定词组的.搭配
错误表达：There is a great deal of violence shown in media to the purpose of
making people relaxed.
正确表达：There is a great deal of violence shown in media to the purpose for
making people relaxed.
指代不清
一致。
错误表达：正确表达：disadvantages.
（代词的所指对象不明确，意思出现错误。）
such as 和 for example的区别
错误表达：正确表达：（for example
错误表达：正确表达：
（such as
Or amazing rate.
Or The human race has entered a marvelous age; the word is developing at an
amazing rate.
Or The human race has entered a marvelous age, the word is developing at an
amazing rate.
（逗号不能隔开了两个完整的句子。）
用词不当
是指在特定的句子中如何适当地选用词语的问题，学生在作文中用词不当的错误比比皆是。
错误表达：The use of chemical obstacle in agriculture also gives rise to pollution.
正确表达：The use of chemical substance in agriculture also gives rise to pollution.（学生将obstacle “障碍”误作substance “物质”了。）
不连贯
不连贯是指一个句子前言不对后语，或者结构上下不畅通。
错误表达：As I see it, water shortage, it is the most pressing problem of the earth. 正确表达：As I see it, water shortage is the most pressing problem of the earth. （water shortage与逗号后的it不连贯。）
名词单复数使用错误
错误表达：Living in this information-explosion society, we can obtain an increasing
number of informations.
正确表达：number of information.
（information不可数，不能用复数，也不能用） 正式原则
一般不能出现缩写形式。
错误表达：As is known to all, we can’t do without advertisements.
正确表达：大小写的错误
每句开头第一个字母都得大写。
错误表达：正确表达：从句引导错误
错误表达：account the the greatest charm in the
world.
正确表达：As is are many people which fail to take into
（as不能再加that。Which 的先行词是人，所以应
正确表达：There is no yet absolute agreement on the question whether schools are of
no use in the Computer Age.
错误表达：On a nutshell, we can conclude that media will still exert positive impacts
on the societal development.
正确表达：In a nutshell, we can conclude that media will still exert positive impacts
on the societal development
错误表达：The issue is familiar with people.
正确表达：The issue is familiar to people.
学识谷
