高一英语Unit 16考点透视与点拨
1. In the eighteenth century,Benjamin Franklin conducted a number of experiments in which he showed what electricity is. (Reading)
考点:a number of意为许多,相当于many,修饰复数名词。a number of+复数名词用作主语时,谓语动词用复数形式;the number of意为的数目,用作主语时,谓语动词用单数形式。
考例: The number of people invited _______ fifty, but a number of them _______ absent for different reasons. (NMET 1996)
A. were; was B. was; was
C. was; were D. were; were
点拨: 选C.句意为 受邀人数是50人,而他们中有许多人由于各种原因没有来。
2. Having realised that I could use a kite to attract lightning,I decided to do an experiment.(Reading)
考点:having done是动词-ing形式的完成式, 在句中作状语, 它表示的动作先于句子谓语动词已经持续了若干时间或若干次。其否定形式是not having done,即在 having前直接加not.
考例1: ______ in the queue for half an hour,Tom suddenly realized he had left his wallet at home.(北京2004)
A. To wait B. Have waited
C. Having waited D. To have waited
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