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 　　托福写作时，考生最注重的是文章的词句运用、语法和逻辑，往往忽视标点符号。今天辛达代报就来为同学们介绍一下新托福写作中标点符号的正确运用方法，还请备战托福考试的同学们可以注重哦!

　　1：在并排连词(and， but， for， nor， or， yet )前运用，用来连接句中的各分句。

　　The principal reason for this is that none of them possesses chlorophyll，and since they cannot synthesize their own carbohydrates， they obtain their supplies either from the break down of dead organic matter or from other living organisms.

　　2：用逗号来分隔一系列单词、词组和从句。

　　Further more the walls of fungal cells are not made of cellulose， as those of plants are， but of another complex sugar like polymer called chitin， thematerial from which the hard outer skeletons of shrimps， spiders， and insects are made.

　　They are a major cause of structural damage to building timbers， a cause of disease in animals and humans， and one of the greatest causes of agricultural losses.

　　3：逗号用来分隔与语句其他部分亲近相连的简略刺进语或旁白。(较长的，更为突兀的或复杂的刺进成分的则用破折号或圆括号。)

　　Chemical fertilization，for example， helps to produce better crops， but is harmful to the environment.

　　4：在并排形容词，即别离润饰同一个名词的形容词之间运用逗号，但也有的形容词之间不加逗号的。

　　For men， heroism was usually described as bravery and the active，successful over coming of adversity.

　　5：用逗号来分隔非限定性润饰语，即该润饰语关于语句的含义并非必不可少。非限定性润饰语与限定性润饰语的差异在于，它即使被省略，也不会改动语句的首要意思。

　　(1) 同位语。

　　The canopy， the upper level of the trees in the rain forest， holds aplethora of climbing mammals of moderately large size， which may includemonkeys， cats， civets， and porcupines.

　　(2) 从句。

　　The canopy， the upper level of the trees in the rain forest， holds aplethora of climbing mammals of moderately large size， which may includemonkeys， cats， civets， and porcupines.

　   以上就是辛达代报为同学们带来的文章，期望你们可以获得了自己想要的信息。最后，辛达代报预祝广大考生早日实现梦想，飞跃重洋！