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1、Unit 4,Then and now,A. Lets learn,There are many books in it. We can read books in it. What is it?,Its a _ .,library,There are teachers in it. They often work there. And you often hand in （上交）your homework there. What is it?,Its a _.,teachers office,There are many computers here. You can learn how t
2、o use computers. What is it?,Its a _ .,computer room,There are two blackboards. There are many desks and chairs in it. What is it?,Its a _.,classroom,What can you see in our classroom? There is/are,Five years ago(五年前),there was no,now,5 years ago,What differences can you find?,Five years ago(五年前), t
3、here was no,computer,TV,fan,What can you see?,grass,There was no 20 years ago.,gym,There was no 10 months ago.,dinning hall,There was no last year.,grass,There were no last month.,trees,go by bike,There is a dining hall in the school now.,Now(现在),Then（那时）,There was no dining hall in the school,There
4、 is a gym in the school now.,There was no gym in the school,There are some trees in the school now.,There were no trees in the school,Wu Yifans school,There is grass in the school now.,There was no grass in the school,20 years ago.,10 months ago.,last year.,last month.,Can you read?,dinning hall,gym
5、,grass,years ago,months ago,last year,last month,facilities (设施) gym dining hall post office Caf（咖啡馆） Motel（汽车旅馆） cinema traffic light（红绿灯） street light（路灯）,traffics（交通） go by bike go by bus go by subway go by plane,activities(活动) watch TV use the mobile（使用手机） use the Internet（使用网络）,There are _s.,Pe
6、ople go by _.,People can _.,In todays world(当今世界)，,In the Tang dynasty(唐朝),At that time, there were no gyms. People didnt go by bus. People couldnt use the Internet.,（在那时）,（不能）,At that time, there were no .,dinning halls,At that time, there were no post offices.,At that time, there were no cinemas.,
7、At that time, there were no motels (汽车旅馆).,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 streetlights.,At that time, people didnt .,go by bike,At that time, people couldnt .,watch TV,At that time
8、, people couldnt .,use the mobile,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,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 ap
9、ple, two pears and five watermelons on the table. A. is B. was C. are,A,C,A,4、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. were,C,A,A,Draw and talk,Tips: Were there any carports(车棚) in our school five years ago? Were there any racetracks(跑道) in our school five years ago?,Homework,1.听录音，跟读；抄单词，练习书写，美观工整。 2.用英文向家人描述学校的今昔变化。 3.完成同步相应练习。,
