A Lets learnUnit4 Then and nowYou can read books in it. What is it?Its a _ .libraryThere are teachers in it. They often work there. And you often hand in （上交） your homework there. What is it?Its a _.teachers officeYou often draws pictures in it.Its an _.art roomDo you have a _ in your school?dining hallgymDo you like playing on the grass?dining hallgrassgymBomb Read loudly.Sleep when you see a “Bomb”.Which one is missing?Dining hall, dining hall, Lets have lunch in the dining hall.Gym,gym,gym. Gym,gym,gym. Play basketball in the gym.Grass, grass. Grass grass. Dont walk on the grass.（T : Whats this? Whose school? Whats the school like?）dining hallgrassgymHello, 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. Sometimes we play football on the grass. There are some trees ,too.But twenty 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 Wechat三月前 three months ago .一天前one day ago五周前five weeks ago两年前two years ago多久以前 （时间名词+ ago）还有哪些表示过去的时间？last weekendlast nightyesterdaythe day before yesterdaylast year 去年last month 上个月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. Sometimes we play football on the grass. There are some trees ,too.But twenty 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 old school like? There was/were WechatThere is a dining hall in the school now.Nowtwenty years ago There was no dining hall in the school twenty years ago.There is a gym in the school now.There was no gym in the school twenty years ago.There are some trees in the school now.There were no trees in the school twenty years ago.Wu Yifans schooldining hall gymgrassWu Yifan s father :There was no gym in my school twenty years ago.Wu Yifan :Now theres a new one in our school.Now10 minutes agoThere is only one horseon the grass now.There were many horses on the grass 10 minutes ago.Now1 hour agoThere is no people in the gym now.There were many people in 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.Find the mistakes In the Tang dynasty At that time, there were no gyms. People didnt go by bus. People couldnt use the Internet.Discuss with your group. Find out the mistakes in the Tang dynasty.At that time，there were no _. People didnt go _. People couldnt use _.At that time, there were no dinning halls. At that time, there were no post offices. At that time, there were no cinemas. At that time, there were no motels(汽车旅馆). Where is it ?motel汽车旅馆hThe difference between hotel and motel Motels parking space（停车位） and room are linked together(相连). The garage(车库) is on the first floor, the room is on the second floor. 汽车旅馆与一般旅馆最大的不同点， 在于汽车旅馆提供的停车位与房间相 连，一楼当作车库，二楼为房间。At that time, there were no cafs（咖啡馆）. At that time, there were no telephones. At that time, there were no traffic lights. At that time, there were no lights. At that time, people couldnt go by bike and by taxi. For example:There was no _ in the school twenty years ago.Now there is a new one in the school.Attention: 注意使用there be句型There be 句型现在时There is +单数There are+复数过去时There was +单数There were+复数Tips: There是个近视眼，只能看到最近的， 最近的是单数用is，是复数用are； 如果是表示过去的，单数用was，复数用were检测练兵1、There _ an apple on the table.A.is B.was C.are 2、There_ two apples in the basket.A.is B.was C.are 3、There _ an apple, two pears and five watermelons on the table.A.is B.was C.areACA4、There _ no gyms in my school 2 years ago.A. was B. are C. were 5、There _ no grass in my school last year.A. was B. are C. were 6、There _ no gym, no dinning halls and no library in my school six months ago.A. was B. are C. wereCAAFree talkThere was/were (no) What was his school like many years ago?Now there is/are twenty years agolast yearthree months agolast monthLook at these photos 8岁时28岁，4月份27岁时28岁，2月份Game 1Pick out the different one in each group. A. last year B. next yearC. last week D. yesterday A. tomorrow B. next weekC. last weekend D. this week A. a