高考最新英语复习一般现在时时态考点总结
单选题(经典例题高频考点-名师出品必属精品)
1、______ he will visit our school or not tomorrow is still not decided yet. If he ______,David will show him around the school.
A.If, will come
B.If, comes
C.Whether, comes
D.Whether, come
答案:C解析:C第一空用
whether
引导主语从句,译为
“无论是否
…”,if作“是否”讲时,不能引导主语从句置于句首。第二句
if引导条件状语从句,用一般现在时代指将来时,主语是
he,用第三人称单数形式
comes
,故选C。【点评】
谈谈whether
和if的区别:
(一)、引导宾语从句
这时两者的含义区别很小,一般可通用。
I don't know whether/if they will come to help us.
但是,当
whether
与or not
连成一个词组时,
whether
不可换 ...                                        
                                    
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