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o the teacher. 4.(___ can join in the sport meet) is decided by the teacher. 5.(________ it will rain or not) is not clear. 7.(______ the earth is a solid ball) is known to us all. What When/How Where/whether Who Whether That 6. (____ the earth is being warm) is a good topic for research. Why 主語從句作主語時,謂語動詞一般用單數(shù)形式。 Conclusion: 注 意: you left are only several old books. you said is of great importance. he’ll e here is not clear. 1.“if” 不能引導(dǎo)主語從句,應(yīng)有“ whether” 引導(dǎo)。 “ that” 一般不能省。 4.“what” 引導(dǎo)主語從句時,謂語動詞: 1)常與其后的名詞作表語一致 2)根據(jù)句子的語境而定。 4. 主語從句需注意的問題 1. _____ you don’t like him is none of my business. 2. _____ he said at the meeting astonished everybody present 3. ________ the 2020 Olympic Games will be held in Beijing is not known yet. 4. ________ we’ll go camping tomorrow dep