I am sure there are no UFOs

八上仁爱版英unit 4 topic 2 i am sure there are no ufos section b教学案例
the main activities are 1 a and 2. 本课重点活动是1a和2。
ⅰ. teaching aims and demands 教学目标
1. learn some useful words and expressions:
toward(s), plate, planet, information, mistake … for …, object, balloon, call for, wake, wake up, real
2. go on learning to express certainty and uncertainty (be sure/be not sure) and review past continuous tense:
(1)a ufo flew over my head while i was walking toward the bus stop yesterday.
(2)i’m quite sure there are ufos.
 (3)i’m not so sure. even scientists aren’t sure whether there are ufos.
(4)i’m sure there are no ufos.
(5)i’m not sure whether/if ro bots will make humans lose their jobs.
(6)while jim was sleeping, he saw a ufo flying over his head.
ⅱ. teaching aids 教具
录音机/图片/小黑板
ⅲ. five-finger teaching pla 阅读全文