______ is known to us all that the old scientist, for ___ life was hard in the past, still works ha

——— is known to us all is that the old scientist, ——— life was very hard in the past,~

用as的话，应该改为：As is known to us all, the old scientist, ......
第二个空在从句中不是作主语，所以得用宾格，“对那个人来说”

答案选A
第一个空 it 作形式主语，真正主语the old scientist still works hard in his eighties.
第二个空 由于语境可以判断，for是对于的意思，因此后面用宾格

句意：我们都知道，这位老科学家在条件见过的过去，仍然努力工作到八十几岁

竭诚相助，望采纳！！！

答案选D吗
______ is known to us all that the old scientist为主语从句
且主语从句缺主语 名词性从句中的连接词有三类
that。 whether。if（不充当从句中的任何成分）
what，whatever，who，whoever，whom，whose，which
when，where，how，why
没有as
for ___ life was hard in the past应该为非限制性定语从句 只是插入
for后面缺宾语
不知道清不清楚雅

A.

1。没有As is 的用法，is 是谓语，前面需要主语

2。for后面需要宾语。 for him life was hard in the past 过去的生活对他来说是艰辛的

whom 是 who 的宾格

---

昆都仑区15342495151： 是I also don't know 还是I don't know yet - ？
红居婴儿： 一般来说表示“我也不知道”用的是I don't know, either 或者Neither do I know,不用 I also don't know.至于后面的I don't know yet ,yet放在否定句的句子后头时是副词,可以理解为“还”,整句就是“我还不知道呢”,当然更准确的说法是I haven't known yet.

昆都仑区15342495151： “It Is known to us ”和“as is known to us ”有什么区别? - ？
红居婴儿： 1、It Is known to us that /to do是独立句,其中it 是形式主语,真正主语是后面that 从句或to do动词不定式,举例如下; It Is known to us that the earth revolves around the sun. 众所周知,地球围绕太阳公转. 2、as is known to us 是从句,非限定定...

昆都仑区15342495151： - - - is known 为什么填As 主语都没有 as-- - saying goes 为什么填a? - ？
红居婴儿： 楼主你好~ As is known意为众所周知,可以看作固定用法,可转换为It is known that. As a saying goes that之所以用a,是因为saying在这里是名词,翻译为谚语,格言,这句话的意思就是“俗话说......”.如果还有问题,可以继续追问,我一上线就会立即回答的^_^ 如果满意,那请采纳我的答案吧~ 顺便点个赞哈~\(≧▽≦)/~ Have a good day~ Neil Steven

昆都仑区15342495151： I - ---its mouth - ----big . A.know, isn't B.don't know ,isn't C. don't knows ,is 哪个对.为什么呢? - ？
红居婴儿： C. don't knows ,is 是正确的. its mouth _is__big 是宾语从句.在这种主宾结构的句子中,通过主句的否定来否定全句的意思.所以,从句不能用否定.所以,A,B均不对.

昆都仑区15342495151： as is well known是什么意思 - ？
红居婴儿： as is well known[英][æz iz wel nəʊn][美][æz ɪz wɛl non] 如所周知;例句: 1. Problems with local gdp data are well known. 地方gdp数据存在问题是尽人皆知的事.2. His investigation was touched off by a well known paradox. 他的调查起因于一个众所周知的悖论

昆都仑区15342495151： it is well known that是什么意思 - ？
红居婴儿： it is well known that[英][it iz wel nəʊn ðæt][美][ɪt ɪz wɛl non ðæt] 众所周知; 例句:1.It is well known that china's millions of amateur property speculators want prices to stay strong. 众所周知,中国数百万业余炒房者希望房价保持坚挺.2....

昆都仑区15342495151： - ---is known to everybody ,the moon travels round the earth once every month - ？
红居婴儿： as在这里的意思应该是就像,就像所有人知道哪样,也就是众所周知...这是一种搭配哦,亲...

昆都仑区15342495151： It is known to us how he became a writer.这句主语从句,那部分是主句,那部分是从句?怎样分辨?从哪里 - ？
红居婴儿： It is known to us 是主句,how he became a writer.是从句. 要辨别主句和从句有两种办法: 1.理解意思 2.从句是修饰前面的主句,从句是:疑问词+陈述句.(比如＂how ＂就是疑问词,“he became a writer”就是陈述句) .剩下的理所当然的是主句..

昆都仑区15342495151： 一道英语选择题The moon travels around the earth once every month, -- is known to everyone. - ？
红居婴儿： which本句也可以用,是非限制性定语从句.但as本句当然也已使用. 因此,本句which,as兼可. which不可以用于句首,但是若要选一个则选as,因为一般说as is known to everyone,as is known to all等等.回答完毕.