北师大版（2019）必修第一册Unit 3 Topic talk &Lesson1 知识点讲练课件（32张ppt）

(共32张PPT)
Unit3 TOPIC TALK&LESSON 1
知识点讲练
1.occasion n.重要的社交活动；时刻，时候
【教材原句】Choose a festival or a special occasion that you like.
选择一个你喜欢的节日或特殊场合。
【归纳拓展】
(l)on one occasion有一次
on that occasion那时；在那种情况下
on occasion偶尔
(2)occasional ad.偶尔的；不经常的；特殊场合的
occasionally ad.偶然地；偶尔；有时
【温馨提示】
当occasion后接定语从句时，其引导词要依据occasion的含义及在从句中所
作的成分来确定。当occasion作先行词，其含义为场合；庆典时，应将它看
作从句中的地点状语，用where来引导；当表示“机会；时刻时，应将它看作从
句中的时间状语，用when来引导。
单句填空
DHe managed to remain cool by swimming occasionally (occasion).
2All in an occasional_(occasion)chance,he got the out-of-print book in a
second-hand bookstore.
2.congratulation n.恭喜，祝贺
【教材原句】offering congratulations
表示祝贺
【归纳拓展】
(l)congratulations(tosb)on sth祝贺（某人）某事
(2)congratulate v.庆祝；祝贺
congratulate sb on sth祝贺某人某事
congratulate oneself on(doing)sth庆幸自己（做）某事
单句填空
DHe congratulated himself
on
having survived the air crash.
2We congratulated him on having passed
(pass)the examination.
3I send you my warmest congratulations_(congratulate)on your success.
完成句子
④祝贺你获得百米赛跑第一名。
Let me congratulate you on your winning the first place in the 100-metre dash
⑤请在见到他时转达我的祝贺。
Please
give him my congratulations
when you see him.
⑥我必须祝贺你为新桥梁做的优秀设计。
I must congratulate you on the excellent design of the new bridge.