据说99%的托福考生都有这些失分点，网上都转疯了！

例子：I was able to raise my TOEFL score by studying hard and I read lots of books.
将一系列的单词连接起来的时候，应当使用词性相同或同一类型的短语。

例子：She are a good friend of mine that I has known for a long time.
主语和动词不一致。

例子：I was kind of mad at the guy who vociferated angry words at me. I have heard many wonderful things about such cosmopolitan cities as Paris, London, Tokyo, and Hong Kong and I would love to visit these cities to check 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。

例子：Many companies began using computers mouth.

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

例子：Yesterday I will go to the store because tomorrow I needed some food.
动词时态不正确，检查一下是应该用现在时、过去时、将来时或者是完成时等等。

例子：I would like to discuss about something important that you mentioned about to me during yesterday. We went to downtown yesterday to buy a watch. When I first came to the US, I did not have a lot of friends in here. In class, my classmate never mentioned about her husband.
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。

例子：There are many reasons to buy a car, preferably a nice car.这个与okay for children to fail sometimes.所表达的意思很普通，大多数人都已经知道了，因而就没有必要再说出来。

例子：I love animals. And I like to help them. Because they are helpless. So I want to become a vet.
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。

例子：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。

例子：Many year ago, dinosaur roamed the Earths.
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)。

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，do not，it is，we will，they have等等)。

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

学生们写的作文里或多或少都会有一些用词不当的问题，但是要注意的是一些最最基本的错误是不能犯的。

　　In the show, if participators answer twenty problems that the host mentioned correctly,

　　they will get five hundreds thousand U.S. dollars as a prize.

　　——problems应改为questions

这里的拼写错误不是指在考试时候的误打，而是本身对词汇拼写记忆的错误。

　　In conclusion, issue of whether parents are the best teachers is a complex one, requiring

　　subjective judgement, consequently, there are no easy or certain answers.

　　——judgement应改为judgment