何谓介词？2021/6/301介词有哪些？他们的意思是？表示什么？2021/6/302何谓介词？表示关系的词。表示位置关系的词；表示时间关系的词；表示逻辑关系的词；表示方式手段的词，等等。2021/6/303My new room2021/6/304above, on, over正上方正上方上方（不一定上方（不一定是正上方）是正上方）上面（与表面上面（与表面接触）接触）2021/6/305Under，belowUnder正下方正下方Below不一定不一定正下方正下方2021/6/306in, on, to Japan is to the east of China.日本位于中国的东面。日本位于中国的东面。Henan Province is on the east of Shanxi Province. 河南省位于陕西省东边。河南省位于陕西省东边。China is in the east of Asia. 中国位于亚洲的东部。中国位于亚洲的东部。2021/6/307across from, through, through从中间穿过从中间穿过BankBookshopAcross from在对面在对面2021/6/308区分：区分：in front of 和和in the front ofin front of = before“在在前面前面”（不在某物内）（不在某物内）in the front of则是则是 “在在的前部的前部”（在某物内）（在某物内）ClassroomBallBall2021/6/309Between, among2021/6/30102021/6/3011The chair is _the cupboard.behind在在后面后面2021/6/3012The snowman is the computer the clock.betweenand在两者之间在两者之间2021/6/3013方方位位介介词词2021/6/3014(一一)介词的定义与分类介词的定义与分类:介词又叫前置词，是一种虚词。介词又叫前置词，是一种虚词。 介词分为两种，一种是介词分为两种，一种是简单介词简单介词, 如如at, in, on, next to , under, behind等等。另一种是另一种是介词短语介词短语，如如in front of, between and等。等。2021/6/3015（二）介词的句法功能（二）介词的句法功能: 介词不能独立在句中做成份介词不能独立在句中做成份, 介词后必须与名词、介词后必须与名词、代词、或动名词构成。代词、或动名词构成。介词短语在句中充当一个成份，表示人介词短语在句中充当一个成份，表示人 、物、事、物、事件等与其它人、物、事件等之间的关系。件等与其它人、物、事件等之间的关系。2021/6/3016The telephone is _ the cupboard.on强调与物体表面接触2021/6/3017The ball is the table.behind在在后面后面2021/6/3018The frog is _the dog .in front ofThe frog is _the dog the cat.betweenand2021/6/3019The tree is _ the shelf.The snowman is the shelf.The toy plane is _ the shelf.abovenext toon在在旁边旁边在在上面上面2021/6/3020完成句子。1.梅梅坐在我的前面，我坐在她的后面。 Meimei sits _ _ _ me and I sit _ her. 2. 迈克坐在吉姆和萨姆之间。 Mike sits _ Jim _ Sam. in front ofbehindbetweenand2021/6/30213. 我的书桌上面放了很多书。There are many books _my desk.4. 盒子里有什么？Whats _ the box? on in 2021/6/3022There be句型专题2021/6/3023There is a cat under the tree.2021/6/3024There are two dogs under the tree.2021/6/3025There is a cat and two dogs under the tree.There are two dogs and a cat under the tree.2021/6/3026概念概念结构结构用法用法There be 句型表示“存在”“有”，其中be动词有时态和单复数变化。There beThere be+ +主语（人或物主语（人或物名词名词）+ +地点地点2021/6/3027看名词看名词单数is复数are不可数的用is2021/6/3028 用be动词is / are 填空： 1、There a pencil in the pencil box. 2、There some flowers on the desk. 3、There four people in my family. 4、There a picture and two maps on the wall. 5、A: there a cat under the tree? B: Yes,there isareareisIsis2021/6/3029there 是个近视眼。 2021/6/3030There _ a desk and fifty-five chairs in the classroom. A. are B. is 2021/6/3031There _ fifty-five chairs and a desk in the classroom. A. are B. is 2021/6/3032There _ some water in thebottle. A. is B. are C. have D. be 2021/6/3033There is _. A. a pencil B. two books C. five apples D. a water 2021/6/3034There are a lot of _ in the fridge. A. meat B. chicken C. eggs D. milk 2021/6/3035There _ a pencil-case andmany pencils in Toms schoolbag. A. is B. are C. have D. be 2021/6/3036看名词看名词There _ a doll in the toy box. A. is B. are There _ some bread on the plate. A. is B. are There _ a lot of green trees in thePark. A. is B. are 2021/6/3037 1.教室里有很多桌子和凳子。教室里有很多桌子和凳子。 2.树上有两个风筝和一只鸟。树上有两个风筝和一只鸟。 3.房子附近有三棵树。房子附近有三棵树。 There are some desks and chairs in the classroom. There are two kites and a bird on the tree. There are three trees on the tree.2021/6/3038wThere is a radio on the desk. There be- 的一般疑问句 Is there a radio on the desk ? Yes, there is. / No, there isnt.wThere are some shoes under the bed. Are there any shoes under the bed? Yes, there are. / No, there arent.w规则：规则： is/are要提前要提前, some 变变any,其他都不变其他都不变2021/6/3039wThere is a radio on the desk. There be- 否定句 There isnt a radio on the desk . wThere are some shoes under the bed. There arent any shoes under the bed. w规则：规则： is/are后加后加not, some 变变any,其他都不变其他都不变2021/6/3040How many apples are there on the tree?There are twenty apples on the tree.How many apples are there on the tree now?There are thirteen apples on the tree now.2021/6/3041Production: Play the game.Find the differences between the pictures.2021/6/30422021/6/3043Summary1. in 在里面2. on 在表面3. beside / next to 在旁边4.behind 在后面5. in front of 在前面6. under 在下面7. between 在两者之间2021/6/3044Chant:There 是个近视眼，单数is复数are,不可数名词用is, 变疑问be提前, 变否定be后要把not填，变句型，句中some变any.2021/6/30452021/6/3046 结束语结束语若有不当之处，请指正，谢谢！若有不当之处，请指正，谢谢！