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问题: 2道高中语法

2道很简单的语法,要有原因哦!
1.These Chinese were the first people_____the magnet as a compass.
A.using B.having used C.to use D.to have been using

2.The writer and professor_____us a lecture on mdern literature next Wednesday.
A.is to give B.are to give C.will be to give D.will be given

解答:

1)C
当中心名词有the first, the second, the next, the last修饰时,作定语的非谓语动词只能用动词不定式to do。

2)A
楼上说的没错,be to do sth.表示打算做某事。
此题考核的是主谓一致的语法知识点。
“the 名词1 and 名词2”的结构表示的实际上是兼有两种身份的一个人,所以要用动词的第三人称单数形式。
再举一例:the singer and dancer歌唱家兼舞蹈家,是一个人