作业帮1What you need now is more pratice,___________?A isn't it B aren't they C don't you D howIt's no longer a question now _______man can land on the moon.A that B if C whether D what
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1What you need now is more pratice,___________?A isn't it B aren't they C don't you D howIt's no longer a question now _______man can land on the moon.A that B if C whether D what
1What you need now is more pratice,___________?
A isn't it B aren't they C don't you D how
It's no longer a question now _______man can land on the moon.
A that B if C whether D what
1What you need now is more pratice,___________?A isn't it B aren't they C don't you D howIt's no longer a question now _______man can land on the moon.A that B if C whether D what
AA
第一题：是主语从句 .把这句话简单的来分,就是一个“主谓宾”结构,“what you need”是主语,is 是谓语,more practice 是宾语.
第一,这是肯定句,谓语是is,所以是isn't.
第二,what you need 是单数概念,因为后面的谓语是用is,所以要用形式主语it来代替.所以选A
第二题：是主语从句,it 是形式主语,真正的主语是后面那句“man can land on the moon”,为了避免一句话有头重脚轻的感觉,就把形式主语放前,真正的主语放后面.
（原句相当于(That) man can land on the moon is no longer a question now .）"That"无意义,不充当任何成分,可以省略.意思是：人类能登上月球,这不再是一个问题.
单单从语法的角度来讲,我认为C也对,问题是,把whether放进原句后,意思是：人类能否登上月球,将不再是一个问题.这一个"将"字,影响很深远啊,结合实际,登上月球已经不是问题了,若选C,就偏离现实了.就选A咯,从语法角度来说没有错误,从现实出发也没错误.
希望可以帮到你.
A;A
第一道题的“What you need now”是主语，所以句子结构是A is B，根据反义疑问句规则，所以答案很明显。
第二道it是形式主语，指代后面的“man can land on the moon”，根据句意可得答案是A，翻译是“人们能够登上月球已经不再是问题”，主语是陈述性语气，只能是“that”
楼上的第二个答案肯定是错的，因为主语从句没有缺成...
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A;A
第一道题的“What you need now”是主语，所以句子结构是A is B，根据反义疑问句规则，所以答案很明显。
第二道it是形式主语，指代后面的“man can land on the moon”，根据句意可得答案是A，翻译是“人们能够登上月球已经不再是问题”，主语是陈述性语气，只能是“that”
楼上的第二个答案肯定是错的，因为主语从句没有缺成分，不可能是what~~~
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1道选A 因为what you need 做主语
2道选C 该句的意思是“现在人类是否能登陆月球已不再是问题。”no longer 是“不再”的意思