以下是王老師的備考筆記分享之“非謂語作主語”,希望對大家特別是2018屆考生有所幫助。
1.置於句首,形式為to do,to be done,doing,being done等四種不定式或動名詞(短語)。例如: TO help you is my duty.
2.置於句末,it作為形式主語,to do,to be done,doing,being done等作為真正主語。例如:It is hard to solve the conflict.
3.動名詞作主語一般表示習慣的、抽象的行為。例如:Walking after supper pays.
4.不定式作主語常用於以下句式:It is+difficult(hard,easy,important,necessary,probable,possible,likely,convenient,expensive,cheap,comfortable)+to do sth.
5.固定句型:(1)It is no use/good doing sth.(2)It is of+value(use,help,importance,necessity,benefit,等抽象名詞)+to do sth.例如:It is no good telling him the truth.
6.疑問詞+to do作主語。例如:Where to live is a problem
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