if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't rain.为什麽答案是B 而不是A?不是都是助动词吗?如果是Charlie____ here next month?A.isn‘t coming B.doesn’t come 选什麽呢?
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![if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't rain.为什麽答案是B 而不是A?不是都是助动词吗?如果是Charlie____ here next month?A.isn‘t coming B.doesn’t come 选什麽呢?](/uploads/image/z/9215129-65-9.jpg?t=if+it___tomorrow%2Cwe%27ll+go+swimming.%E9%80%89%E6%8B%A9A.isn%27t+rain+B.doesn%27t+rain.%E4%B8%BA%E4%BB%80%E9%BA%BD%E7%AD%94%E6%A1%88%E6%98%AFB+%E8%80%8C%E4%B8%8D%E6%98%AFA%3F%E4%B8%8D%E6%98%AF%E9%83%BD%E6%98%AF%E5%8A%A9%E5%8A%A8%E8%AF%8D%E5%90%97%3F%E5%A6%82%E6%9E%9C%E6%98%AFCharlie____+here+next+month%EF%BC%9FA.isn%E2%80%98t+coming+B.doesn%E2%80%99t+come+%E9%80%89%E4%BB%80%E9%BA%BD%E5%91%A2%EF%BC%9F)
if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't rain.为什麽答案是B 而不是A?不是都是助动词吗?如果是Charlie____ here next month?A.isn‘t coming B.doesn’t come 选什麽呢?
if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't rain.为什麽答案是B 而不是A?
不是都是助动词吗?
如果是Charlie____ here next month?A.isn‘t coming B.doesn’t come 选什麽呢?
if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't rain.为什麽答案是B 而不是A?不是都是助动词吗?如果是Charlie____ here next month?A.isn‘t coming B.doesn’t come 选什麽呢?
if it___tomorrow,we'll go swimming.
选B
这是if引导的条件状语从句,主将从现
所以从句【if it doesn't rain_tomorrow】用的就是一般现在时
这是固定用法
Charlie isn't coming here next month?
这边因为后面有【next month】所以表示将来
这边是用进行时表示将来,所以用【isn't coming】
rain在这里是动词,动词的否定是don`t或doesn`t,形容词和名词的否定用isn`t
rain是动词,如果用is就应该用动名词形式拉
所以用助动词does
B.doesn't rain
rain是动词.下雨
rain这里是动词 表示下雨的意思。 动词否定式要用助动词,形容词的否定式才用系动词。
因为rain是下雨的意思,是指动作,实义动词,所以助动词是选do而不是系动词be。而且be后面不能直接加动词rain的原形,由此也可以排除A
选B。因为下雨时动词。