【正文】
ench tutor ______ know … ? They _____ be so frightened! ? They _____ have been separated from… ? Or they _____ have gone exploring… ? They ____ be there. ? … they ________ have any water. 思考: 上述句子所表達的意思是: ______ a) decision? b) advice? c) guesses? 歸納總結: Strong belief/true(一定) : Strong belief/ not true(不可能) : Possibility/ true(可能、也許) : Possibility/ not true(可能不) : Discovery 2. Decide what they are talking about. think my French tutor might know them. 2. They might be sheltering in a cave. 3. They might have fallen behind. a) 過去情況 b)現(xiàn)在情況 c)正在發(fā)生的事情 歸納總結: 1. 表示對現(xiàn)在情況的推測用: 2. 表示對此時此刻正在發(fā)生的事情的推測用: 3. 表示對過去情況的推測用: 找一找: 在文章中找出其他含有情態(tài)動詞的句子,并說出它表示的用法: