Unit 4Then and nowA. Let’s learnThere are many books in it. We can read books in it. What is it?It’s a ___________ .libraryThere are teachers in it. They often work there. And you often hand in （上交） your homework there. What is it?It’s a ___________________.teachers’ officeThere are many computers here. You can learn how to use computers.What is it? It’s a ___________ .computer roomThere are two blackboards. There are many desks and chairs in it. What is it?It’s a ___________________.classroomWhat can you see in our classroom?There is/are…Five years ago( 五年前 ),there was no…now5 years agoWhat differences can you find?Five years ago( 五年前 ),there was no…computerTVfanWhat can you see?dining hallgymgrassThere was no 20 years ago.gymThere was no 10 months ago.dinning hallThere was no last year.grass There were no last month.trees go by bikeThere is a dining hall in the school now.Now( 现在 )Then （那时）There was no dining hall in the school There 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 Yifan’s schoolThere 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 grass ……years ago ……months ago last year last month • facilities ( 设施 )• gym• dining hall• post office• Café （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.People go by ________.People can ____________.In today’s worl...
