1、 especially, specially
especially adv. 特殊地；尤其是
（1）侧重于多种事物或人中比较突出的.。I like all the subjects at school, especially English. （尤其是英语）
（2） especially 后可接介词短语或从句。I like the Yuelu Mountains, especially in spring. （尤其是在春天） Noise is unpleasant, especially when you are trying to sleep.
specially 侧重特意地、专门地做某事 （后面常接for sb. 或to do sth.）
I made a chocolate cake specially for you.
2、 boring, bored, bore
boring adj. 令人厌烦的 The book is very boring.
bored adj. 感到厌烦的 I'm bored with the book.
bore vt. 令人厌烦 This book bores me.
有些表示情感的及物动词，有与bore类似的用法。如：interest, excite, surprise, amaze, frighten, astonish, move, inspire, touch, scare, disappoint, puzzle, worry 这类词的现在分词形式，为“令人……”；过去分词形式，为“感到……”。
3、 except for, except, but, besides
表示“除了”的词或短语有：except; but; except for; besides; except that （when.。.） 等。
（1） except 和 but 都表示“除了……之外。没有”，二者大多数情况下可以互换；但在no, all, nobody, nothing, no one 等词后多用 but。No one knows our teacher's address except / but him. （排除him）
（2) besides 除……之外，还……，有附加性。What other foreign languages do you know besides English? (English与other languages都属于know的范围）
（3） except for 只不过……，整体肯定，部分修正，用于排除非同类事物，for表示细节上的修正。 Your article is well written except for a few spelling mistakes.
4、 know, know of, know about
（1） know 用作动词，意思是“（直接地）获知，懂得，认识，熟悉”。I don't know whether he is here or not. / I know him to be honest.
（2） know of和know about的意思都是“（间接地）获知”，指听别人说到或从书报上看到，二者没有什么区别。
5、 for example; such as
（1） for example“例如”，用来举例说明某一论点或情况。一般只举同类人或物中的“一个”为例，作插入语，可位于句首、句中或句末。可用for instance替换。For example, air is invisible. / His spelling is terrible! Look at this word, for example.
（2） such as “例如”，用来列举事物，一般列举同类人或事物中的几个例子。插在被列举的事物与前面的名词之间，as后面不可有逗号。Some of the European Languages come from Latin, such as French, Italian and Spanish.
[注意]如把前面所述情况全部举出，用that is或namely。