1、第四单元知识点梳理一必背词汇：dining hall 饭厅 ago 以前gym 体育馆 years ago 年前grass 草坪 四会词 cycling 去骑自行车运动 表示过去时间 last month 上个月months ago 月前go cycling 去骑自行车 last year 去年ice-skate 滑冰 at that time 在那时play badminton 打羽毛球 其它：star星 easy 容易的 look up 查阅 Internet 互联网 different 不同的 active 活跃的 race赛跑 nothing 没有什么 thought 想 felt 感
2、觉 cheetah 猎豹 trip 绊倒 woke 醒 wake up 醒来at night 在晚上 play basketball 打篮球 use the Internet 使用互联网 wear glasses 戴眼镜 dream 梦win the race 赢得比赛 have a race with 和进行一场赛跑二语法知识： 1. 表示以前没有某物的句型 There was no + 单数名词或不可数名词 + 过去时间。There was no library in my old school.There were no + 复数名词 + 过去时间。There were no compu
3、ters or Internet in my time.注意： no+ 名词相当于not a / an / any + 名词。 There werent any computer rooms at all. There was no gym ,either.2. 表示不喜欢的句型I didnt like + 名词或动名词。如：Before I didnt like dogs. Before I didnt like beef. Before I didnt like going running.3. 表示过去不能做或不会做的句型 I couldnt + 动词原形。 I couldnt go c
4、ycling before. People couldnt use the Internet in the Tang dynasty.4. 如何描述某人过去和现在的不同情况 外貌和性格：Before, 主语+was / were +形容词. Now，主语+am / is / are +形容词. Before I wasnt tall. I was quiet. Now I am tall. I am active. Before she had short hair. Now she has long hair. Before he didnt wear glasses. Now he wea
5、rs glasses.能力方面：Before, 主语+couldnt +动词原形. Now, 主语+can +动词原形. Before I couldnt swim. Now I can swim very well. 爱好方面：Before, 主语+didnt like +名词 / 动词ing. Now, 主语+like +名词 /动词ing. Before he didnt like reading books. Now he likes reading books.三重点句型：1. There was no library in my old school.我以前的学校里没有图书馆。2.
6、 Tell us about your school, please. 请给我们讲讲您的学校吧。3. How do you know that? 你怎么知道的？I looked it up on the Internet. 我在网上查阅。4. There were no computers or Internet in my time.我那时候没有电脑也没有网络。5. Before, I was quiet. Now, Im very active in class. 以前我很安静。现在我在课堂上很活跃。6. I was short, so I couldnt ride my bike very well. Now, I go cycling every day.我以前个子小，自行车骑得不好。现在我天天骑车。7. What was Grandpas school like ? 爷爷的学校是什么样子的？ 8. How did Mike change? 迈克是怎样改变的？9. What did you dream about last night? 你昨晚梦到什么？