人教版必修5 Unit 1 Using Language
Language points◆ Yet he could not tell anyone about his theory as the powerful Christian Church would have punished him for even suggesting such an idea. 1)表示对过去的某种情况进行猜测, 或本来要做某 事却因某种原因未做成,通常用来说明某一情况， 但不象should或ought to 那样含有责备之意。如：