《M3U4Grammar》.pptVIP

Unit 4 Astronomy: the science of the stars Discovering useful structures The subject clause Try to discover useful structures 1.What it was to become was uncertain. 2.That he left the city suddenly surprised all of us. 3. Which team will win is not clear. 4. Why they suddenly disappeared still remains a mystery. 5.Whether life will continue on the earth for millions of years to come will depend on whether this problems can be solved. Summary: 下划线部分都是_____, 都充当主句的______。我们称这类句子_________。语序:_________ 从句 主语 主语从句 Summary: 引导词有： Q:What do the sentences have in common? what , that , which , why , whether 陈述语序 6.When they will start depends on the weather. 7.How he became a great scientist is known to us all. 8Who will take part in the meeting has been decided. 9.Whom he will compete with doesn’t matter much. 10.Where she is from is none of your business. 引导词还有： when , how , who , whom , where 依据“缺什么补什么”原则确定正确的引导词。如果句子中缺主语，指人用 ，指物用 ；如缺宾语、表语，指人用 ，指物用 ；如缺时间状语用 ；地点状语用 ；原因状语用 ；方式状语用 ；定语用 或 ；什么都不缺用 ；表示“是否”用 。 who what whom what when where why how what which that whether Complete the sentences using what, whether, where, when， who, why, how or that. 1.(_____ is needed for success) is your hard work. 3.(_____ we will go tomorrow )hasn’t been decided yet. 2.(__________ they will arrive )has been told to 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 becoming warm) is a good topic for research. Why 主语从句作主语时，谓语动词一般用 形式。 Summary: 单数 What you left _____(be）only several old books. What he needed______（be) an umbrella. What he says and does _____ not (do ） concern me. What he says and does _____not (