join

　　[誤] Did you attend the football club

　　[正] Did you join the football club

　　[析] join經常用于參加某個團體、政黨，并作為其中的一個成員;attend則重點強調出會議、到場，而不一定進行具體活動，如： Did you attend the meeting yesterday而take part in則強調參與某些具體活動或運動，如： I take part in the football game.

　　just

　　[誤] I have finished my work just now.

　　[正] I finished my work just now.

　　[析] just now意義剛才，所以句中的謂語動詞要用過去式。

　　[誤] Just I won the game.

　　[正] I just won the game.

　　[析] just單獨使用時不應放在句首，而應放于① be動詞之后，如： He is just a student.② 名詞與一般動詞之間。③ 用在第一助動詞之后，如： I have just returned home. 但just與其他詞組成詞組時，如just now, just then, 則可用于句首和句尾。如： Just then he saw the bus coming.

　　just justly

　　just常用于三種含意： ① 恰好，如： Its just five oclock. ② 僅僅，相當于only, 如： I have just enough money to buy a dictionary. ③ 不久前，如： I just missed my old friend; He left a few minutes ago. 而justly其意為公正的，如： He was justly punished for his crimes.