引導語：錯題本是會考英語的高分祕籍。他能讓我們總結錯誤思路，得到正確答案，大大提高我們的分數。以下是YJBYS的`小編為大家整理的國中英語常見錯誤之K系列。希望對大家的學習能有所幫助!
keep
[誤] She was keeping something to her father.
[正] She was keeping something from her father.
[析] "對某人隱瞞某事"要用"keep something from somebody"句型。
[誤] He kept to repeat the word again and again.
[正] He kept repeating the word again and again.
[析] keep doing something為連續不斷地做某事。有時可以與keep on doing something互換。它們的區別在於keep doing something意為該動作一直不停地在進行中，如： When the train started, she kept waving her hand. 而keep on doing something則表示該動作可能停停頓頓但卻一直在進行中，如： He kept on making the same mistakes in grammar.
[誤] We must keep up the times.
[正] We must keep up with the times.
[析] 這句話意為"我們必須趕上時代"，keep up with是"趕上"之意，而keep up則是"堅持下去"的意思，如： Keep it up, don't stop now!
key
[誤] I lost the key of the door.
[正] I lost the key to the door.
[析] 英語中講某某的東西一般要用of，而key, entrance, answer則多用to，如："門的鑰匙"為key to the door, "高速公路入口"為entrance to the highway, "問題的答案"為the answer (key) to the question.
kind
[誤] This kind of books are not good.
[正] This kind of books is not good.
[析] kind在這種句式中應作為主語，如果講Those kinds of books are very good. 則是正確的。
kind sort type
kind和sort為同義詞，意為"種類"，而type則為"型號"，如： What type of this car do you want(你想要這種車的什麼型號)
knock
[誤] Someone was knocking the door.
[正] Someone was knocking at the door.
[析] knock雖可以作及物動詞，如： The car knocked a hole in the fence. 但作"敲門"講一定要用作不及物動詞： knock at (on) the door.
know
[誤] I want to know to play this game.
[正] I want to know how to play this game.
[析] 要注意英語中在不定式前加疑問代詞或疑問副詞的用法。如：I want to know how to do it / what to do / when to do it / where to go.
know know of
I know him.為"我很瞭解他。"而I know of him. 則為"我聽說過他。"同樣的用法還有hear和hear of這一片語。
