1.The ice-cream is       the fridge.
2.This is the first lesson       the new term.
3.I can't find the basketball. Maybe it's       the door.
4.I can buy some flowers       you.
5.There is a supermarket       my house.
6.Lin Tao is       duty today.
7.Mr. King is not       work. Maybe he's ill.
8.Jack, please look       your things.
9.Ben often helps me       my study.
10.Listen       Miss Ma and follow the orders.

将上面这些词放在合适的位置上

答案:(点击显示)

1. in 2. of 3. behind 4. for 5. near 6.on 7. at 8. after 9. with 10 to

介词主要用来表示时间、地点、位置,你能分得清么?in和on有什么区别?

      介词是表示名词、代词与句中其他词的关系的词。主要用来表示时间、地点、位置。
(一) in的用法
1.in用在某范围或某空间内,例如:
      The pen is in the book.钢笔在书里面。
      The boy is in blue.男孩穿着蓝色的衣服。
2.在一段时间内,例如:
      We have four classes in the morning.早上我们有四堂课。
3.以,用……方式
      What's that in English?那东西用英语怎么说?

(二)用in 和on表示位置的区别
      in是表示装在某物中,而on则指表面的接触。
      The ball is in the box. 球在箱子里面。
      The ball is on the box. 球在箱子上面。

(三)用in, on, at表示时间
      in后面一般是morning, afternoon, evening,月份、年份或者某一段时间;
      on用在具体某一天,例如:on Sunday morning;
      at一般用在某个假期期间(不是指具体的某一天),它还可以用在具体某点时间。例如:at the weekends, at the Spring Festival, at five o'clock, at noon, at night。