1. The artist is very famous at home and in abroad.(×)
The artist is very famous at home and abroad.(√)
abroad是副词，其前不可置介词，但from abroad例外，如:My dad is fresh from abroad.(我爸爸刚从国外回来。)
2. Keep in touch when you go abroad.(×)
Keep in touch when you are abroad.(√)
go abroad是指(措机)“出国”的动作，此时保持联络不合情理。be abroad指人“在国外”时的状态，此时保持联络才合情合理。
3. There are two absent students today.(×)
There are two students absent today.(√)
absent表“缺席的/不在的”时，一般不直接修饰名词,大多接在be动词之后。two students absent即two students who are absent的省略形式。不过在英式用法中，absent可直接修饰少数的几个名词,如:He is an absent father.(他是一个经常不在家的父亲。—即他是一个不称职的父亲。)这句话的美式说法是:He is an absentee father。
4. John becomes abused when he gets drunk. (×)
John becomes abusive when he gets drunk.(√)
abused指“被虐待的”，如:an abused child就是指“一个受虐的小孩”。abusive是“谩骂的”或“虐待人的”，如:an abusive parent就是指“虐待儿女的父亲或母亲”。
5. Mayumi speaks English with strong Japanese accent.(×)
Mayumi speaks English with a strong Japanese accent. (√)
accent是可数名词，其前须置a或an。
6. I cannot accept such a person. (×)
I cannot stand such a person. (√)
accept只能用于“接受”事物，即建议、忠告或邀请，如:I accepted her proposal then and there.(我当场接受了她的提议。)stand表“忍受”，可用人或事物作宾语。
7. Besides the Net, students should have an access to a good library. (×)
Besides the Net, students should have access to a good library. (√)
have / get / gain access to sth是指“某人有机会或有权利进入/利用某物”，其中access是不可数名词，其前不可加an。
8. In fact, the birth of our third child was by accident. (×)
In fact, the birth of our third child was an accident. (√)
by accident 表“意外地州禺然地”，是副词词组，只能修饰一般动词，不能作be动词的表语，如:I found out the secret by accident.(我偶然发现了这个秘密。)表没有料想到的“意外”时，应该说sth is / was an accident。
9. She cut her finger carelessly. (×)
She cut her finger by accident.(√)
carelessly表“粗心大意地”，如:He often drives carelessly.(他开车经常粗心大意。
10. It is not an accident that Nick has three divorces.(×)
It is no accident that Nick has three divorces.(√)
It is no accident that..意为“某事的发生决非偶然”，为固定用法，不可将no拆成not an。