Recently, I have came across an article about the importance of reading. It said that reading can help us to expand our knowledge and increase our vocabulary. However, I find that I have difficulties in read books, because there are always some new words and phrases that I don't understand. This makes me feel frustrating and I often give up easily. In addition, I also have problems in writing. I often make mistakes in grammar and spelling, which make my writing look unprofessional. I know that I need to improve my English, but I don't know how to start.
解析：
1.錯誤：I have came across
改正：I have come across
解析：come across是固定短語，表示“偶然遇到”，不需要加助動詞have的過去分詞形式。
2.錯誤：in read books
改正：in reading books
解析：have difficulties in doing sth. 是固定句型，表示“在做某事上有困難”，所以需要用動名詞形式reading。
3.錯誤：This makes me feel frustrating
改正：This makes me feel frustrated
解析：frustrating是形容詞，通常用來描述事物令人沮喪的特性，而frustrated是形容詞，用來描述人的感受，即“感到沮喪的”。
4.錯誤：give up easily
改正：give up easily
解析：雖然這個短語本身沒有語法錯誤，但在上下文中，為了表達更強烈的情感，可以在easily前加上too，即give up too easily，表示“太容易放棄了”。
5.錯誤：which make
改正：which makes
解析：這句話的主語是前面的整個句子（I often make mistakes in grammar and spelling），作為單數概念，所以后面的動詞要用單數形式makes。
6.錯誤：my writing look unprofessional
改正：my writing looks unprofessional
解析：整句話的主語是my writing，作為單數概念，所以動詞要用單數形式looks。
7.錯誤：need to improve my English
改正：need to improve my English（此句無錯誤，但可添加細節(jié)）
解析：雖然此句本身沒有語法錯誤，但為了表達更具體的改進方向，可以添加一些細節(jié)，如“need to improve my English in both reading and writing”。
8.錯誤：but I don't know how to start
改正：but I don't know where to start
解析：在這個語境中，使用“where”比“how”更合適，因為作者是在尋找一個開始的地方或方法，而不是一個過程或步驟。
