1.accept, except, accept 是动词，except 是介词。
F:They excepted my invitation to dinner.
T:They accepted my invitatipn to dinner.
F:Everyone attended the meeting accept the secretary.
T:Everyone attended the meeting except the secretary.
2.advice, advise, advice 是名词，advise 是动词。
F:His advise was very useful.
T:His advice was very useful.
F:I was adviced to purchase an economical car.
T:I was advised to purchase an economical car.
3.affect, effect. affect 是动词; 意为influence. effect 可以是动词也可以是名词。动词effect意为cause to happen, 名词effect意为the result。
F:Pollution effects everyone.
T:Pollution affects everyone.
F:Your tears do not effect me.
T:Your tears do not affect me.
F:What is the affect of that drug?
T:What is the effect of that drug?
5.most ,almost most 是形容词almost是副词。
F:Most everyone has a desire to succeed.
T:Almost everyone has a desire to succeed.
F:The student was most finished when the bell rang.
T:The student was almost finished when the bell rang.
F:The children ate most all of the pie.
T:The children ate almost all of the pie.
--The children ate most of the pie.
6. already, all ready. already 意为 before the time specified. all ready 意为 completely prepared。
F:The movie had all ready begun by the time we arrived.
T:The movie had already begun by the time we arrived.
F:Are you already to go?
T:Are you all ready to go?
7.altogether, all together. altogether意为thoroughly. Alt together 意为 in a group。
F:All together confused, he asked me to explain the word again.
T:Altogether confused, he asked me to explain the word again.
F:The passengers stood altogether in the station.
T:The passengers stood all together in the station.
8.amount,number,amount指不可数名词，number指不可数名词。
F:He checked out a large amount of books from the library.
T:He checked out a large number of books from the library.
F:I was amazed by the amount of people present.
T:I was amazed by the number of people present.
F:Elephants can consume a large number of food.
T:Elephants can consume a large amount of food.
9. anywheres, somewheres, everywheres. 去掉s。
F: We can talk anywheres.
T:We can talk anywhere.
F:I lost my umbrella somewheres in the store.
T:I lost my umbrella somewhere in the store.
10. about, around. around指地点,about意为approximately
F: The mail arrived around ten oclock.
T:The mail arrived about ten oclock.
F:He is around six feet tall.
T:He is about six feet tall.