1、A Lets learnA Lets learnUnit4 Then and nowCan you guess?Guess and saylibraryWe can see and read many books in it.We can borrow(借借)the books from it.Where is it?There are teachers in it.They often work there.And you often hand in your homework there.What is it?Its a _.teachers officeYou often draw pi
2、ctures or paint in it.Its an _.art roomgardenI can see many beautiful flowers and green grass in it.Where is it?gym playgroundWe can do sports and have P.E class in it.Where is it?computer roomThere are many computers and internet in it.We can have computer class in it.Where is it?music roomI can si
3、ng the songs in it.Where is it?dining hallWe have lunch in it.Where is it?Playground,playground.Lets run,lets run.Grass,grass.Play football,play football.Gym,gym.Play ping-pong,play ping-pong.Dining hall,dining hall.Have lunch,have lunch.（T:Whats this?Whose school?Whats the school like?）Hello,Im Wu
4、Yifan.Id like to introduce my new school.It is very new and nice.There is a beautiful dining hall.I eat lunch there.The food is very yummy.There is a big gym.When its rainy,we have PE class there.And I often play basketball with my friends there.Near the gym,there is green grass.Sometimes we play fo
5、otball on the grass.There are some trees,too.But five years ago,there was no gym.And there was no dining hall.There were no trees,either.But now my school is more beautiful than before.I like my new school.Whats Wu Yifans new school like?There is/are Before Now There was no dining hall.There is a di
6、ning hall.Hello,Im Wu Yifan.Id like to introduce my new school.It is very new and nice.There is a beautiful dining hall.I eat lunch there.The food is very yummy.There is a big gym.When its rainy,we have PE class there.And I often play basketball with my friends there.Near the gym,there is green gras
7、s.Sometimes we play football on the grass.There are some trees,too.But five years ago,there was no gym.And there was no dining hall.There were no trees,either.But now my school is more beautiful than before.I like my new school.Whats Wu Yifans new school like?There is/are Before Now There was _.Ther
8、e is _.Hello,Im Wu Yifan.Id like to introduce my new school.It is very new and nice.There is a beautiful dining hall.I eat lunch there.The food is very yummy.There is a big gym.When its rainy,we have PE class there.And I often play basketball with my friends there.Near the gym,there is green grass.S
9、ometimes we play football on the grass.There are some trees,too.But five years ago,there was no gym.And there was no dining hall.There were no trees,either.But now my school is more beautiful than before.I like my new school.Whats Wu Yifans new school like?There is/are Before Now There was _.There i
10、s _.Hello,Im Wu Yifan.Id like to introduce my new school.It is very new and nice.There is a beautiful dining hall.I eat lunch there.The food is very yummy.There is a big gym.When its rainy,we have PE class there.And I often play basketball with my friends there.Near the gym,there is green grass.Some
11、times we play football on the grass.There are some trees,too.But five years ago,there was no gym.And there was no dining hall.There were no trees,either.But now my school is more beautiful than before.I like my new school.Whats Wu Yifans new school like?There is/are Before Now There were _.There are
12、 _.There is a dining hall in the school now.NowFive years agoThere was no dining hall in the school five years ago.There is a gym in the school now.There was no gym in the school five years ago.There are some trees in the school now.There were no trees in the school five years ago.Wu Yifans schoolTh
13、ere is green grass in the school now.There was no green grass in the school five years ago.三月前 three months ago一天前one day ago五周前five weeks ago二十年前twenty years ago多久以前（时间名词+ago）Where is it?motel汽车旅馆汽车旅馆hAt that time,there were no dinning halls.At that time,there were no _.At that time,people didnt go
14、 by bike and by taxi.At that time,people didnt go by _.At that time,people couldnt use the Internet.At that time,people couldnt use _.Mistakes错误buildings（建筑）（建筑）gymdining hallpost officecoffee shopmotelcinematraffic light（红绿灯）（红绿灯）street light（路灯）（路灯）traffic（交通）（交通）go by busgo by bikego by taxiactiv
15、ities(activities(活动活动)watch TVwatch TVuse the phoneuse the phoneuse the Internetuse the InternetAt that time,there were no gyms.People didnt go by bus.People couldnt use the Internet.Mistakes错误buildings（建筑）（建筑）gymdining hallpost officecoffee shopmotelcinematraffic light（红绿灯）（红绿灯）street light（路灯）（路灯）
16、traffic（交通）（交通）go by busgo by bikego by taxiactivities(activities(活动活动)watch TVwatch TVuse the phoneuse the phoneuse the Internetuse the InternetAt that time,there were _.People didnt _.People couldnt _.There be 句型句型现在时现在时There is+单数单数There are+复数复数过去时过去时There was+单数单数There were+复数复数 Tips:There是个近视眼
17、，只能看到最近的，是个近视眼，只能看到最近的，最近的是单数用最近的是单数用is，是复数用，是复数用are；如果是表示过去的，单数用如果是表示过去的，单数用was，复数用，复数用were1、There _ an apple on the table.A.is B.was C.are2、There_ two apples in the basket.A.is B.was C.are3、There _ an apple,two pears and five watermelons on the table.A.is B.was C.areACA4、There _ no gyms in my scho
18、ol 2 years ago.A.was B.are C.were5、There _ no grass in my school last year.A.was B.are C.were6、There _ no gym,no dinning halls and no library in my school six months ago.A.was B.are C.wereCAANow10 minutes agoThere is only one horse on the grass now.There were many horses onthe grass 10 minutes ago.Now1 hour agoThere are no people in the gym now.There were many peoplein the gym 1 hour ago.Now3 days agoThere is a TV in the dining hall now.There was no TV in the dining hall 3 days ago.
