5、重要注释：
⑴ this / that / these / those / last / next / a / every / each等词构成的时间短语,前面不用任何介词。如：Every year travellers from abroad come to visit Pingyao.(每年都有国外的游客来游览平窑镇)/ He had a bad cold that week.(那个星期他患重感冒)
⑵ 记住一些固定词组： on foot(步行), at night(在晚上), play with(玩耍 ),look out of(朝 外面看), with one’s help(在 的帮助下),look after(照料 ),look for(寻找 ),on a bike(=by bike)骑车, help sb. with(帮某人做 )等等。 6、某些介词的用法辨析：
⑴ 时间或地点介词in、on、at的用法区别：表示时间时, in表示在一段时间里(在将来时句子中则表示在一段时间之后), on表示在具体的某一天或者某天的上下午等, at表示在某个时刻或者瞬间； 表示地点时, in表示在某个范围之内, on表示在某个平面上或与一个面相接触,at则表示在某个具体的场所或地点。如：He was born on the morning of May 10th.(他出生于五月十日的早晨)/ I usually get up at 7：00 in the morning.(我通常在早上的七点钟起床) / His glasses are right on his nose.(他的眼镜就架在他的鼻子上)/ He is at the cinema at the moment.(此刻他正在电影院) ⑵ after与in表示时间的用法区别：“after+(具体时刻/从句)”表示“在 时刻之后”常用于一般时态；“in+(一段时间)”表示“在(多久)之后”,常用于将来时态。如：He said that he would be here after 6：00.(他说他六点钟之后会来这儿)/ My father is coming back from England in about a month.(我父亲大约一个月以后从英国回来)
⑶ by、in与with表示方式的用法区别：都可以表示“工具、手段”,但是by主要表示“乘坐”某个交通工具或“以 方式”, in表示“使用”某种语言/文字,with表示“使用”某个具体的工具、手段。如：We see with our eyes and walk with our feet.(我们用眼睛看东西,用双脚走路)/ Please write that article(文章) in English.(请你用英语写那篇文章)/ Let’s go to the zoo by taxi.(我们打的去动物园吧。)/ It was written by Lao She.(那是老舍写的)
⑸ in front of 与in the front of： in front of“在 的前面”, 与in the front of“在 的前部”。如：A car was parking in front of the hall.(大厅跟前停着一辆汽车)/ In the front of the hall stood a big desk.(大厅前部立着一个大讲台)
用适当的介词填空:
1. Tom is the boy _______ glasses.
2. Please read some books ________ Chinese medicine. 3. She works in the day and has a rest ______ night. 4. My uncle works _______ a farm.
5. Mr Black and Yang Ling are talking _________ a party. 6. She wants _____ buy a sweater ______ her daughter. 7. It’s a map ____ China.
8. Let’s have a look _____ the picture. 9. What’s that _____ Chinese? 10. I’m _____ Class One.
11. There is a clock ______ the wall ______ the classroom.
12. Can you see an apple _______ the tree? No, But I can see a bird _______ the tree. 13. There is a purse ______ here. 14. There is a boat ______ the lake. 15. There are many kites ____ the sky.
16. What clothes is she wearing? She is _______ red. 17. Can you see the boy _______ the bike?
18. The woman ______ a yellow dress is my mother.