今日过关标准：35秒（请模仿朗读10分钟以上，然后录制视频）
语法要点：
口诀：Be 用was或用were，否定就把not添。
was not = wasn"t were not= weren"t
I wasnot a teacher in .
=I wasn"t a teacher in .
The car wasnot white yesterday.
=The car wasn"t white yesterday.
Jack and Lucy werenot good friends long ago.
=Jack and Lucy weren"t good friends long ago.
语法注解：
一般过去时，表示过去某个时间发生的动作或存在的状态。
否定句型：主语+be动词过去式+not+其他
1. Iwasnota teacher in .
=Iwasn"ta teacher in .
在我不是老师。
2. The carwasnotwhite yesterday.
=The carwasn"twhite yesterday.
昨天那辆车不是白色的。
3.Jack and Lucywerenotgood friends long ago.
=Jack and Lucyweren"tgood friends long ago.杰克和露西很久以前不是好朋友。
巩固练习：
根据提示完成句子。
1. I___ ___ in Shenzhen in .
我不在深圳。
2. The river ___ clean two years ago.
两年前这条河不是很干净。
3. We ___ ___ surprised yesterday.
昨天我们并不感到惊讶。
每天坚持完成，兑换神秘礼物哦！加油！
