15.　單數(shù)/復(fù)數(shù)Many year ago, dinosaur roamed the Earths.單詞需要從單數(shù)變?yōu)閺?fù)數(shù)，或者由復(fù)數(shù)變成單數(shù)。單數(shù)可數(shù)名詞單數(shù)可數(shù)名詞不能單獨(dú)使用，應(yīng)該將其變?yōu)閺?fù)數(shù)形式或者加上限定詞(a, the, my, his, her, Gary's, no, any, 1, 3, 50, most,等等)。

　　16.　拼寫(xiě)錯(cuò)誤主語(yǔ)、動(dòng)詞或賓語(yǔ)有問(wèn)題I want to buy something for my mother that she will like it. There was a terrible accident happen yesterday.句子的基本結(jié)構(gòu)有問(wèn)題　缺少主語(yǔ)、動(dòng)詞或賓語(yǔ)，或者這些成分重復(fù)。

　　17.　語(yǔ)氣與文章不符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.語(yǔ)氣與文章其他部分不相符可能是過(guò)于正式或者太不正式。

　　18.　代詞指代不明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.代詞所指代的指示詞(介詞所代替的名詞)不清楚。

　　19.　過(guò)于籠統(tǒng)We should use our resources on Earth because the Earth is getting worse.　句子或它所表達(dá)的意思過(guò)于籠統(tǒng)，不能提供多少信息。

　　20.　動(dòng)詞時(shí)態(tài)錯(cuò)誤Yesterday I will go to the store because tomorrow I needed some food.動(dòng)詞時(shí)態(tài)不正確檢查一下是應(yīng)該用現(xiàn)在時(shí)、過(guò)去時(shí)、將來(lái)時(shí)還是完成時(shí)等等。

　　21.　選詞不恰當(dāng)I was late getting home because I lost my way.在這種情況下不應(yīng)該使用該詞可選擇更好的詞語(yǔ)或者所使用的詞語(yǔ)與文章的總體語(yǔ)氣不符。

　　22.　單詞形式不當(dāng)I want to creation a great web site so that I can becoming wealth.所使用的單詞的形式不正確檢查一下應(yīng)該使用該詞的名詞、形容詞或副詞形式的哪一種。

　　23.　用詞錯(cuò)誤Even I don't speak Spanish, I was able to find a bathroom in the department store. I gained a lot of pounds during vacation.用詞錯(cuò)誤或在此種情況下該詞不是最佳用詞。