［误］Make yourself home.
［正］Make yourself at home.
［析］这是英语中的习惯用法，意为“像在家里一样”。这样的用法还有：enjoy oneself 玩得开心make yourself at home 像在家中一样 help yourself to something 自己拿某物lost oneself 迷路 seat oneself 就坐dress oneself 穿衣
［误］— Who's this speaking.—　That's Mary.
［正］— Who's that speaking.—　This is Mary.
［析］在电话用语中，this指讲话人自己，而that指对方。
［误］The days in summer are longer than this in winter.
［正］The days in summer are longer than those in winter.
［析］在比较句中往往为了避免重复，可以用that或those取代前面提到的事物，如是单数时用that,复数时用those，如：The weather in Beijing is hotter than that in Chang Chun.
［误］It is so a good book that everyone likes to read.
［正］It is such a good book that everyone likes to read.
［正］It is so good a book that everyone likes to read.
［析］在可数名词单数时可用so+形容词+不定冠词+名词+that从句，也可用such+不定冠词+形容词+that从句。在不可数名词或可数名词复数时，只用such, 如：It is such good weather that I want to go swimming. They are such good books that I want to buy them all.在many, much, few, little这4个词前仅能用so,如： She has so much money that she can buy everything she wants.而在so与that之间仅存形容词时，则不能用such,如:She is so sweet that everyone likes her.
［误］I want to buy a same dictionary as yours.
［正］I want to buy the same dictionary as yours.
［析］same与定冠词the是固定搭配不可更改。这样的用法还有all the same(仍然)。
［误］— I hope she might pass the exam.—　I don't hope so.
［正］— I hope she might pass the exam.—　I hope not.
［析］在作肯定回答时，I think so. I hope so. I believe so.但作否定回答时为：I don't think so. I hope/believe not.
［误］— He studied very hard this term.— So she did.
［正］— He studied very hard this term.— So did she.
［误］— English is difficult to learn.— So is it.
［正］— English is difficult to learn.— So it is.
［析］在对话中如果某一动作同时适用于两个主语，这时在答语中要用缩写且要用倒装句。如第一组句，即studied hard既适用于he,也适用于she.但答语仅仅是对前句的重复，即仅仅是第一句的缩写时则不要用倒装句。如第二组句子为：英语难学。答语为：是的，难学。这时缩写的答语不要用倒装句。
［误］Everyone should do one's best.
［正］Everyone should do his best.
［析］one作代词时，它的复数形式是ones,所有格形式是one's，反身代词为oneself.如果讲One should do one's best.则是对句。如果one与别的词组成其他词，如： someone, anyone, everyone或only one 则要用his/her，来作其所有格形式。
［误］— Who won the game?— None.
［正］— Who won the game?— No one.
［析］由who提问的句子的否定回答中的简略说法是no one,而由How many提问的句子的否定回答中的简略语是None.如：How many books are there? None.
［误］There are many trees on either sides of the street.
［正］There are many trees on either side of the street.
［正］There are many trees on both sides of the street.
［析］either作代词时由两个含意，其一是两者中随便哪一个，如：You can take either.其二是两者中的每一个。但要注意的是either后要加单数名词，如果作主语则谓语动词也要用单数形式。
［误］Either you or I are right.
［正］Either you or I am right.
［析］在either…or,或neither…nor连接两个主语时，其谓语动词要与和其相近的那个主语相配。
［误］I have three sisters. Neither of them is a doctor.
［正］I have three sisters. None of them is a doctor.
［析］neither用于两者中无一是，而none则用于多于两者中的人或事物无一是。
［误］He doesn't like Beijing opera. I don't like too.
［正］He doesn't like Beijing opera, I don't like either.
［析］either作为“也”讲时，要用于否定句中，而too则用于肯定句中。