一些英语问题帮忙解决下~1.iswell-known,Chinaisrichinnaturalresources.A.WhichB.As2.Thedoctordidalltosavethewoundedboy.A.whathecouldB.hecouldC.everythingwhichhecouldD.forwhichhecoulddo这句

Question

一些英语问题 帮忙解决下~
1.___ is well-known,China is rich in natural resources.
A.Which B.As

2. The doctor did all ___to save the wounded boy.
A.what he could B.he could
C.everything which he could D.for which he could do
这句话先行词是all么?若是的话 那在从句中做什么成分啊?从句貌似连谓语动词也没有.
3.They will never succeed,___ hard they try.
A.because B.however C.when. D.since
这道题我知道选B,但是 when 不是也能引导让步状语从句么

4.You can arrive in Beijing early ___you mind taking the night train.
A.that B.though C.unless D.if
5. Although he is considered a great writer,_______________.
A.his works are not widely read B.but his works are not widely read. C.however his works are not widely read.
D.still his works are not widely read.
这个D项是不是把放到works后面就能选?
每道题 答案 带详细解析 顺便把每道题后面我提的问题解答一下.麻烦大家了~~~有分哦

Answer 1

1.B As is well known, 固定搭配,如众所周知.Which 的话太独立,构不成什么从句.
2.B all(that)=what ,that 省略了,all 相当于 everything.我也觉得没有谓语动词很奇怪.是不是B项后有do啊
3.B when 符合语法的话,你也要看句意啊.句子的意思是无论他怎么努力,也不会成功的.我觉得when也不符合语法,要也是whenever吧.
4.C You can arrive in Beijing early IF you DON'T mind taking the night train.
Unless= if not (除非）
句子的意思是你可以早点到北京,如果你不介意坐夜班车.
5.A 主要是Although在作怪.英语中不会把“既然那么”,“因为,所以”放在一起的.
例如,不会说 BECAUSE I'm hungry,SO I eat all the Cookies.
至于你的提问,其实后句隐含了still的意味,就不要加了,省得重复.
In the end ,觉得对且好的话,给点分吧.(*^__^*) 嘻嘻……
还不明白的话,还可以再问