1.结构不平行

例：I was able to raise my TOEFL score by studying hard and I read lots ofbooks.当使用连词将一系列的单词联接起来的时候，应当使用词性相同或同一类型的短语。

2.不知所云

例：Many companies began using computers mouth.

3.段落过长，不分段，主语与动词一致问题

She are a good friend of mine that I has known for a longtime.主语和动词在数方面不一致。

4.句子别扭

名师讲解：托福写作中常见的23个失分点

We heated the soup in the microwave for too long and the shape of thecontainer changed.措辞过长或不清。换言之，句子显得滑稽可笑。

5.不要使用缩写

在正式的写作中不要使用缩写形式(can"t，don"t，it"s，we"ll，they"ve等等)，而应当使用单词的完整形式(cannot，donot，it is，we will，they have等等)。

6.关联词语重复

Since I want to go to a good school，therefore I am trying to raise my testscores.不能在该句的主要主语和主要动词前使用连词。

7.句子不完整

Many students have a hard time passing all the tests to get into college.For example， my friend in highschool.句子没有主要主语或主要动词，因为其实它应是一个从句。这是一个非常常见的错误，修改的方法是将两个句子连接起来。

8.不要使用get When I got home， I got tired， so I got a book and got intobed.

Get太不正式，意思也过于含糊，不适合用在正式的场合。应将get改为一个更加具体的单词，如become，receive，find，achieve，等等。

9.书写难以辨认，信息不正确

I would like to study in America because all modern technology originatedthere.传的信息不正确，或者让人听起来觉得可能不正确(如果确实是正确的，应当解释为什么这样，因为读者不认为是正确的)。上述例句中，all的意思是百分之百;我们不能绝对地说每一件新东西都是从美国诞生的。为保险起见，应当使用many或most.非英语单词Computersare very helpful and advantageable.尽管看起来象个单词，其实不是，至少不是个英文单词。使用这个单词的另一种形式。

10.介词多余

I would like to discuss about something important that you mentioned aboutto me during yesterday. We went to downtown yesterday to buy a watch. When Ifirst came to the US，I did not have a lot of friends in here. In class， myclassmate never mentioned about herhusband.在表示这种意思时此单词不能与介词连用。这种情况常见于downtown，home，there，here等词。这些词语在英语中是副词而非名词，因而不能在它们前面添加介词。

11.跑题或不相关

There are many reasons to buy a car， preferably a nice car.这个意思与文章的主题无关。

12.陈词滥调

It is okay for children to failsometimes.所表达的意思很普通大多数人都已经知道到了，因而就没有必要再说出来。

13.标点问题

I love animals. And I like to help them. Because they are helpless. So Iwant to become a vet.这是一个非常普遍的问题!许多学生在句子中使用了太多的句号，尤其是当他们用手写的时候。

14.重复冗余

Personally，I believe what the newspaper prints.一种意思的表述不止一次，或者某个词语不必要。

15.单数/复数

Many year ago， dinosaur roamed theEarths.单词需要从单数变为复数，或者由复数变成单数。单数可数名词不能单独使用，应该将其变为复数形式或者加上限定词(a，the，my，his，her，Gary"s，no，any，1，3，50，most等等)。

16.拼写错误，主语、动词或宾语有问题

I want to buy something for my mother that she will like it. There was aterrible accident happen yesterday.句子的基本结构有问题，缺少主语、动词或宾语，或者这些成分重复。

17.语气与文章不符托福多少分

I was kind of mad at the guy who vociferated angry words at me. I haveheard many wonderful things about such cosmopolitan cities asParis，London，Tokyo， and Hong Kong and I would love to visit these cities tocheck them out.语气与文章其他部分不相符， 可能是过于正式或者太不正式。

18.代词指代不明

If people do not speak the same language， it has a greater chance ofmiscommunication. I intend to complete my studies in the United States becausethey have good programs there.代词所指代的指示词(介词所代替的名词)不清楚。

19.过于笼统

We should use our resources on Earth because the Earth is gettingworse.句子或它所表达的意思过于笼统，不能提供多少信息。

20.动词时态错误

Yesterday I will go to the store because tomorrow I needed somefood.动词时态不正确。检查一下是应该用现在时、过去时、将来时还是完成时等等。

21.选词不恰当

I was late getting home because I lost myway.在这种情况下不应该使用该词。可选择更好的词语或者所使用的词语与文章的总体语气不符。

22.单词形式不当

I want to creation a great web site so that I can becomingwealth.所使用的单词的形式不正确。检查一下应该使用该词的名词、形容词或副词形式的哪一种。

23.用词错误

Even I don‘t speak Spanish， I was able to find a bathroom in the departmentstore. I gained a lot of pounds during vacation.用词错误或在此种情况下该词不是最佳用词。