名词性从句讲解与练习主语从句考点解析: 1．主语从句一般分为三类：由what 等代词引导的主语从句；由连词that 引导主语从句，多数情况下由it 作形式主语， that 从句放到句子后面去；由连接代词或连接副词（或whether）引导的主语从句。What they are after is beauty. It is not your fault that we can ’t arrive on time. When they will arrive has not been decided. 2. 由关系代词what 引导的主语从句， 也可由 whatever（“所⋯的一切” ）或 whoever（“一切⋯的人”）引导。 Whatever he wants is your support. Whoever comes will be welcome. 3. 大多数主语从句都可用it 代替，作形式主语，把主语从句放在句尾。要注意it 代替主语从句和 it 引导的强调句的区别。强调句的结构是it is/was⋯ .+that⋯，强调人是可把that 换做 who，whom，whose。如强调的是状语时，也只能用that,而不能用 when, where, how, why 等。 It was in Paris that they fell in love with each other. It is the lady who was my English teacher. It was last semester that he won the first prize. 2. 试题详解。1．______ he needs is more experience. A. Who B. That C. What D. How 2.It was because of the heavy snow ______ the train was late. A. why B. that C. so D. thus 3．It doesn’t matter ______ he likes or not. A. whether B. what C. when D. that 4______ he has won the Noble Prize has been proved to be true. A. What B. How C. It D. That 5．What he wants _______ to sleep more. A. are B. have been C. is D. were 6．______ we can begin this investigation is still a question. A. When B. Why C. What D. That 7．It is ______ that the highway will be open to traffic nest year. A. report B. reported C. reporting D. by report 8______ fails to see this will make a big mistake. A. Whatever B. what C. wherever D. Whoever 9．It is a mystery _____ the prisoner escaped. A. why B. how C. what D. that 10． It was las...
