牛津译林版高中英语选修七unit3theworldonlineperiodfour课件1内容摘要：
个词组成 .如： have (got) to, had better, would sooner/rather(…than), be to, be likely to, be supposed to, ought to, used to, be about to ,be able to, etc. ★ I have (got) to clean the blackboard before the teacher es. ★ I have (got) to go now。 my wife will be waiting for me. ★ You didn39。 t have to tell her the whole story. ●have (got) to 表示“得做某事”，戒提出建议，其否定形式 not have to意为“不必”。 ★Many countries would rather be cautious with this new technology. ★I would sooner walk to work than take a bus. ●would rather/sooner(…than) 的意思是“宁愿 ,更愿意”。 ★ He is to go to New York next week. ★The president is to speak on TV tonight. ★You are to explain this. We can’t stand this kind of behaviour. ●be to表示未来的打算和安排，戒用于正式的指示和命令。 说明：这种用法也可以说成是一种 将来时态表达法。 补充 ： be + 动词不定式的其他用法。 如： How am I to answer him? 我该怎样答复他。 b. 表示相约、商定。 如： We are to meet at the school gate at seven tomorrow morning. 我们明天早晨 7点在校门口集合。 ★He is likely to win the first prize. ★That is not likely to happen. ●be likely的意思是某事有可能发生戒可能是真的。 ★Teachers are supposed to。阅读剩余 0%
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