Not "Amina lives on Haffenville." — say "Amina lives in Haffenville.". 城市名前面要记住的搭配是 in，不是 "on"。
试一试: Mei is ___ Haffenville today. (in / on / under) 答案: in — 城市名前面用的词是 in：in Haffenville。"on" 是用在表面上的，不是城市。
on = 在表面上
记住这个搭配：on = 贴着某个东西的表面，通常是上面。
The book is on the table.
The cup is on the desk.
The bag is on the chair.
Not "The book is in the table." — say "The book is on the table.". 书放在桌面上，所以搭配是 on；"in" 就变成在桌子里面了。
试一试: Sofia is at the park office. Her pen is ___ the table, not under it. (on / in / under) 答案: on — 在桌子上面，就用 on。"in" 会变成在桌子里面。
under = 在下面
记住这个搭配：under = 在某物下面。
The ball is under the chair.
The shoes are under the bed.
The cat is under the table.
Not "The ball is below the chair. It is on the chair." — say "The ball is below the chair. It is under the chair.". 在下面就是 under，"on" 会变成球放在椅子上面。
试一试: My pen is ___ the chair, on the floor. (under / on / in) 答案: under — 笔在椅子下面的地上，所以用词是 under。"on" 会变成笔放在椅子上面。
试一试: Lars: Where are your keys? Sofia: They are ___ my bag, with my wallet and my phone. 选一个词，说出钥匙在哪里。 (in / on / under) 答案: in — 钥匙和钱包、手机一起放在包里面，所以用 in。"on" 会变成放在包的上面，"under" 会变成在包的下面。
at home, at work, at school = 在家、在上班、在学校
at home、at work 和 at school 是三个固定说法。这三个说法里没有 the：要说 at home，不说“at the home”。
Sofia is at home today.
Lars is at work at the park office.
Mei is at school.
Not "Sofia is at the home." — say "Sofia is at home.". 这三个说法就是 at 直接加地点。
试一试: Lars is not at the park office today. He is ___. (at home / at the home / in home) 答案: at home — 固定说法就是 at home。"at the home" 多加了一个词，这个说法里没有它；"in home" 是开头的词用错了。
试一试: The phone sits on top of the desk. The phone is ___ the desk. (on / in / under) 答案: on — 在表面顶部就是 on：on the desk。"in" 表示在里面；"under" 表示在下面。
常见错误有哪些？
错误
正确
原因
Amina lives on Haffenville.
Amina lives in Haffenville.
城市名前面要记住的搭配是 in，不是 "on"。
The book is in the table.
The book is on the table.
书放在桌面上，所以搭配是 on；"in" 就变成在桌子里面了。
The ball is below the chair. It is on the chair.
The ball is below the chair. It is under the chair.