下面举个辅音开头发元音选用冠词的例子。 (来源：http://www.EnglishCN.com)

　　Incorrect: The judge gave the lawyers a hour's recess to review the new evidence.

　　Correct: The judge gave the lawyers an hour's recess to review the new evidence.

　　下面举个辅音开头发辅音选用冠词的例子。

　　Incorrect: The professor was well known for posing an hypothetical question when students suggested that one rule would suffice for all situations.

　　Correct: The professor was well known for posing a hypothetical question when students suggested that one rule would suffice for all situations.

　　四、括号

　　1 在引语中插入你自己选用的单词时，该单词使用括号。

　　Incorrect: The professor said that "Frankfurter evolved from liberal to conservative while on the Supreme Court (and) Blackmun evolved from conservative to liberal."

　　Correct: The professor said that "Frankfurter evolved from liberal to conservative while on the Supreme Court [and] Blackmun evolved from conservative to liberal."

　　2 为表示你在引语中改变了一个单词的一部分时，该部分使用括号。此类情形通常发生在为合并引语和你自己的句子时，要把大写字母变小写字母，反之亦然。

　　引语:

　　"Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted." U.S. Const. amend. VIII.

　　不正确合并:

　　The Eighth Amendment provides that "Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted." U.S. Const. amend. VIII.

　　正确合并:

　　The Eighth Amendment provides that "[e]xcessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted." U.S. Const. amend. VIII.

　　五、限制性从句与非限制性从句 Clauses - Restrictive and Nonrestrictive

　　1. Restrictive and Nonrestrictive Clauses Defined. Restrictive clauses limit the possible meaning of a preceding subject. Nonrestrictive clauses tell you something about a preceding subject, but they do not limit, or restrict, the meaning of that subject. Compare the following examples.

　　含义。限制性从句限定前面主句的含义，而非限制性从句仅讲述与前面的主句相关的内容，但并不对前面的主句进行限定。比较下面的例句：

　　Correct Restrictive Use:

　　The suspect in the lineup who has red hair committed the crime.

　　Note how the subject "suspect" in this sentence is restricted in two ways: we know that this suspect is both in the lineup and has red hair. As a result, we know that the other suspects, who are not in the lineup, could not have committed the crime. Moreover, of those suspects in the lineup, we know that the one suspect in the lineup with red hair committed the crime. If there were more than one suspect in the lineup with red hair, the above usage would be incorrect because it implies a different meaning.

　　请注意：上句中的主语suspect以两种方式进行了限定：在排队和有红色头发。因此，我们可以知道，其它不在队列中的嫌疑犯没有参与犯罪。而且，在嫌疑犯队列中，只有有红色头发的才参与了犯罪。如果队列中不止一人有红色头发，则上述例句的用法是不正确的，因为它存有其它的含义。

　　Correct Nonrestrictive Use:

　　The suspect in the lineup, who owns a red car, committed the crime.

　　In this example, the restrictive clause "in the lineup" tells us that of all possible suspects in the world, the one who committed the crime is in the lineup. However, while the nonrestrictive clause "who owns a red car" tells us something about the suspect, it does not foreclose the possibility that there are several different suspects in the lineup with red cars. The car color may tell us something useful, but it does not restrict us to only one possibility.

　　在例句中，限制语in the lineup告诉我们，在所有可能的嫌疑犯中，参与犯罪的嫌疑犯在队列中。尽管非限制性从句who owns a red car告诉了我们关于嫌疑犯的若干资料，但是并不能排除在队列中其它嫌疑犯也拥有red car。车身的颜色可能告诉我们一些有用的东西，但无法限定到仅仅一种可能。

　　2. When choosing between "that" and "which," use "that" to introduce a restrictive clause and "which" to introduce a nonrestrictive clause. Although some writers use "which" to introduce a restrictive clause, the traditional practice is to use "that" to introduce a restrictive clause and "which" to introduce a nonrestrictive clause. When writing a restrictive clause, do not place a comma before "that." When writing a nonrestrictive clause, do place a comma before "which."

　　尽管有些作者用which来引入限制性从句，但是传统用法还是用that来引入限制性从句，而用which来引入非限制性从句。使用限制性从句时，that 前一定不要用逗号，而使用非限制性从句时，which 前一定要用逗号。

　　Correct Restrictive Use:

　　The store honored the complaints that were less than 60 days old.

　　Correct Nonrestrictive Use: