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1、何谓介词？介词有哪些？他们的意思是？表示什么？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。My new roomabove, 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）Under，belowUnder正下方正下方Below不一定不一定正下方正下方in, 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
2、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。across from, through, through从中间穿过从中间穿过BankBookshopAcross from在对面在对面区分：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）ClassroomBallBallBetween, amongThe chair is _t
3、he cupboard.behind在在后面后面The snowman is the computer the clock.betweenand在两者之间在两者之间方方位位介介词词(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。（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
4、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。The telephone is _ the cupboard.on强调与物体表面接触The ball is the table.behind在在后面后面The frog is _the dog .in front ofThe frog is _the dog the cat.betweenandThe tree is _ the shelf.The s
5、nowman is the shelf.The toy plane is _ the shelf.abovenext toon在在旁边旁边在在上面上面完成句子。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 ofbehindbetweenand3. 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 There be句型专题There
6、is a cat under the tree.There are two dogs under the tree.There is a cat and two dogs under the tree.There are two dogs and a cat under the tree.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。Therebe+ +主语（人或主语（人或物物名词名词）+ +地点地点看名词看名词单数is复数are不可数的用is 用be动词is / are 填空： 1、There a pencil in the pencil
7、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 isareareisIsisthere 是个近视眼。 There _ a desk and fifty-five chairs in the classroom. A. are B. is There _ fifty-five chairs and a desk in th
8、e classroom. A. are B. is There _ some water in thebottle. A. is B. are C. have D. be There is _. A. a pencil B. two books C. five apples D. a water There are a lot of _ in the fridge. A. meat B. chicken C. eggs D. milk There _ a pencil-case andmany pencils in Toms schoolbag. A. is B. are C. have D.
9、 be 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 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 a
10、nd a bird on the tree. There are three trees on the tree.wThere 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
11、 变变any,其他都不变其他都不变wThere 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How many apples are there on the tree?There are twenty apples on the tree.How many appl
12、es are there on the tree now?There are thirteen apples on the tree now.Production: Play the game.Find the differences between the pictures.Summary1. 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Chant: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.
