U4 Then and now 笔记区 重点单词短语 grass n.草 ago adv. 以 前 …years ago （几）年前 …months ago（几）月前different adj.不同的 race n.赛跑，种族dining hall 饭 厅 look up （在词典中或通过电脑）查询 cycling n.骑自行车运动go cycling 去骑自行车ice-skate v.滑冰badminton n.羽毛球last year 去 年 last month 上个月 There be 知 识 点 1.遵循就近原则："be”的形式是由与它最近的那个名词来确定的。若那个名词是单数或不可数名词要用 is,是复数就用 are。 2.there be 句型 一般现在时：There is +单数…… There are+复数…… 一般过去时：There was +单数…… There were+复数…… 一般现在时和一般过去时的区别一、概念 1、一般现在时用于表示经常性或习惯性的动作或存在的状态；表示客观事实或普遍真理； 在时间、条件等状语从句中表示将来。 2、一般过去时表示在过去某个特定时间发生，也可以表示过去习惯性、经常性的动作。一般不强调动作的影响，只说明事情。一般过去时常与表示过去的时间状语或从句连用。 二．句法结构 1、一般现在时当主语是第三人称单数时，动词变相应的第三人称单数形式，肯定句：主语 +动词第三人称单数形式+其它；否定句：主语+doesn't+动词原形+其它。当主语不是第三人 称单数时，肯定句：主语+动词原形+其它，否定句：主语+don't+动词原形+其它。 2、一般过去时没有第三人称单数形式，肯定句形式为主语+动词过去式+其他，否定句形式为主语+didn't +谓语动词原形+其他。 三．时间标志词 1.一般现在时：always, usually, often, seldom, every day, three times a day... 2.一般过去时：last..., ...ago, in+过去的年份，just now, yesterday... 习题区 一．单项选择 There no library in my city 20 years ago. has B. was C. were I couldn't swim two years . last B. ago C. now Lily short before, Now she tall. is; is B. is; was C. was; is We have a library at that time. didn’t B. don’t C. doesn’t Sarah went to the park . today B. next day C. yesterday 二．翻译句子。 1.我二十年前的学校里没有体育馆。 2.以前我不会骑车。现在我天天骑车。 3.我以前很安静。现在我在课堂上很活跃。 4.我经常在周日去购物，但是我上周日呆在家里。 5.那时我不喜欢打羽毛球。 三.补全短文，首字母已给出，每空一词。 Today, I visited my mother school 50 years later. It changed a lot. It is 1. b .than before. In my time there was only one building. Now there are many. Students can eat in the dining 2. h . They can do sports in the 3. g , draw pictures in the art room and sing songs at the music room. There're more learning ways than before, In my time we only 4. l from books, teachers and friends. Now students can learn from the internet. But I still miss(怀念) my old school. I could see the stars at night. I could read books 5.u the trees. I could play with my friends. ... ...
~~ 您好，已阅读到文档的结尾了 ~~
