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*,*,单击此处编辑母版标题样式,编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Unit 4,Finding your way,Grammar,Unit 4 Grammar,Presentation,There is,a,cage,in the picture.,cage,n,.,笼子,鸟笼,The,cage is beautiful.,PresentationThere is a cage in,a,snake,a,lion,a,tiger,a,giraffe,a snakea liona tigera giraffe,an,egg,an,umbrella,an,orange,an,English book,an eggan umbrellaan orangean E,1.,第一次提到某人或某物时。,I have,a,book.,2.,泛指某一类的人或物。,A,panda is very lovely.,不定冠词,a/an,的用法,1.第一次提到某人或某物时。不定冠词a/an的用法,判断一个单词用,a,还是用,an,，是根据其读音，而不是根据其首字母。以元音音素开头的词前用“,an”,，以辅音音素开头的词前“,a”,。如：,an hour,an apple,an elephant,a useful book,等。,判断一个单词用a还是用an，是根据其读音，而不是根据其首字母,Look!Here is,a,panda.,The,panda is eating bamboo.,Look!Here is a panda.The pand,Look!Here is,an,apple.,The,apple is red.,Look!Here is an apple.The app,1.,指上文提到过的人或物。,如：,Lucy bought a new bike.,The,bike is,green.,2.,世界上独一无二的事物。,如：,the,sun,the,moon,3.,谈到彼此都知道的人或事物。,如：,Open,the,door,please.,定冠词,the,的用法,1.指上文提到过的人或物。如：定冠词the的用法,4.,序数词和形容词最高级前。,如：,She is always,the,first to get to school.,5.,乐器名词前用。,如：,play,the,piano play,the,violin,6.,定冠词与形容词连用表示一类人，加 在姓氏前面表示一家人。,如：,the,rich,有钱人,the,Smith,史密斯一家,4.序数词和形容词最高级前。如：,7.,某些专用名词和习惯用语中用定冠,词。,如,:,the,Great Wall,by,the,way,7.某些专用名词和习惯用语中用定冠,1.,名词前已经有指示代词（,this,that,these,those,）、形容词性物主代词,(my,his,our),或名词所有格等限定词。,2.,表示语言、学科、三餐、球类运,动、棋类运动的名词前。,不用冠词的情况,1.名词前已经有指示代词（this,that,thes,3.,表示星期、月份、季节、某些节日的名词前。,4.,表示人名、国名、称呼语或头衔等专有名词前。,5.,某些固定短语中。,如,:by bike,by bus,at first,at work,on foot,go to school,go to bed,等。,3.表示星期、月份、季节、某些节日的名词前。,Fun in the zoo,Millie and Daniel are talking about the animals in the zoo.Complete their conversation with,a,an,or,the,.,Fun in the zoo,Millie:Lets go to the Panda House first.,Daniel:Here we are.I can see,(1),_ panda there.Its lying on the grass.,Millie:How cute!I really love pandas.Look!Theres(2)_ baby panda.Its so small.,a,a,Millie:Lets go to the Panda,Daniel:Yes.(3)_ baby panda doesnt,look like its mother.,Millie:Now lets go to see some lions.,Daniel:Are(4)_ lions in(5)_ open area?,Millie:No,they arent.They are in(6),_ very big cage.,The,the,an,a,Daniel:Yes.(3)_ baby pa,Daniel:I see.,(Half an hour later),Daniel:Millie,heres(7)_ bridge.,What can you see,across,it?,Millie:Oh,(8)_ elephant is standing,over there.,Daniel:Lets go across(9)_ bridge,and see(10)_ elephant.,a,an,the,the,Daniel:I see.aa,across,作介词，既可表示静态的位置关系，意为“在,对面”，也可表示动态的移动方向，通常和一些表示“移动”的动词搭配使用，意为“从,穿过”。,例如：,The hotel is just,across,the flower shop.,旅馆就在花店的对面。,It will take them two weeks to walk,across,the desert.,徒步穿过这片沙漠将会花费他们两周的时间。,across作介词，既可表示静态的位置关系，意为“在对面,在必要的地方用,a,an,the,填空。,1.Where is Peter?He isnt at _ school.,2.There is _ orange in the fridge.,3._ pencil on the desk belongs to,Sandy.,4.I have _ new bike.I clean _ bike,every day.,an,The,a,the,在必要的地方用a,an,the填空。1.Where i,5.Dad often goes fishing in _ summer.,6.A:Can I help you?,B:Im looking for _ pair of shoes.,7.The students often go to school by _ bike.,8.Who is good at playing _,football in your class?,9._ boy in a red coat is my cousin.,a,The,5.Dad often goes fishing in _,10.I live on _ third floor.,11.There is _“h”,_“o”,_“u”in the word“hour”.,12.Simon likes to play _ piano but he doesnt like to play _ basketball.,13.Beijing is _ capital of China.,the,the,the,a,an,an,10.I live on _ third floor,inside,Prepositions of place,方位介词,outside,insidePrepositions of placeout,on,over/,above,in front of,behind,on the left of,on the right of,under/,below,beside/next to,onover/abovein front ofbehindo,over,在,的正上方,under,在,的正下方,above,在,的上方,(,表面,不接触,),below,在,的下方,on,在,的上面,(,表面接触,),over,under,above,below,on,Do you know these words?Lets learn them together.,over 在的正上方 overunderaboveb,Can you fill in the blanks with these prepositions?,1.There is a face _ the desk.,2.The moon is _ the desk.,3.The sun is _ the desk.,4.I can see a star _ the desk.,5.There is a tree _ the desk.,desk,over,above,under,below,on,Can you fill in the blanks wit,The flowers are,in front of,the shop.,The trees are,behind,the shop.,The shopkeeper is,inside,the shop.,Look and say,The flowers are in front of th,The boy is,outside,the shop.,The food is,above,the,drinks.,The drinks are,below,the food.,The,sign,is,over,the,bench.,The dog is,under,the,bench,.,n.,长椅,n.,指示牌,The boy is outside the shop.n.,In the park,Sandy goes to the park every weekend.Look at the picture below and complete her description with the correct prepositions of place.,In the park,Theres a beautiful lake in the park.Look!Two boys are rowing a boat(1)_ the lake.(2)_ the lake theres a football field.Some boys are playing football(3)_ it.,Beside,on,on,Theres a beautiful lake in th,(4)_ the football field,there are two trees.On the left,a bird is singing(5)_ one tree.On the right,two boys are sitting(6)_ the other tree.(7)_ the two trees,three girls are chatting,(8)_ the bench.,In front of,Between,in,under,on,(4)_ the football fi,1.The football is _ the door,so I cant see it.,2.Dont stand _ us,or we cant see the film clearly.,3.There is an electric fan _ the desk.,4.Look!Your rubber is _ the chair.,Pick it up.,be
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