牛津译林必修三Unit1 GRAMMAR语法学案

that，if或whether 引导的名词性从句 【语境展示】 1. That maths is the base of other sciences is widely accepted. 2. It seems unlikely that we will catch the train. 3. Whether it will do us harm or good remains to be seen. 4. I hadn’t known (that) television works in much the same way as radio until you told me. 5. I doubt whether / if she was right. 6. John hesitated as to whether he should take our advice. 7. I take it from your silence that you don’t want to go out with me. 8. The manager’s order is that the work be started at once. 9. The thing to be settled on now is whether anything can be done to save it. 10. The news that our team had won the game excited us. 11. There is only a fifty-fifty chance that we will win the game. 12. Let us go through the problem whether these methods can be put into practice. 【归纳】 名词性从句是在句子中起名词（词组）作用的从句。根据它在句子中不同的句法功能，名词性从句又可分为主语从句、宾语从句、表语从句和同位语从句。 1. 主语从句 在句子中作主语的从句叫主语从句（如例句1-3）。有时为了避免句子头重脚轻，常用it作形式主语置于句首，而把主语从句后置（如例句2）。 2. 宾语从句 在句子中充当宾语的从句叫宾语从句（如例句4-7）。宾语从句可作及物动词的宾