■能再次收到你的来信, 我们将十分感激。

误：We shall appreciate to hear from you again.

正：We shall appreciate hearing from you again.

析：appreciate(感激)后接动词时，要用动名词，不用不定式。

■谢谢你的好意。

误：I appreciate you for your kindness.

正：I appreciate your kindness.

正：Thank you for your kindness.

析：其后只能接“事”作宾语，而不能接“人”作宾语，此用法与 thank 的用法恰恰相反。

■如果你能帮助我做这事，我将十分感激。

误：I would appreciate very much if you would help me with it.

正：I would appreciate it very much if you would help me with it.

析：appreciate(感激)是及物动词，其后不能没有宾语。另外也有 的词书(如《朗文当代英语词典》)将 I would appreciate it if...视为一个固定句型。另外有时其中的 if从句也可能换成 when从句。如：We really appreciate it when she offered to help.(她来帮忙了，我们十分感激)。