Great as Newton was,many of his ideas ______ till today and are being modified by the work of scientists of our times.A. are to challenge B. may be challenged C. have been challenged D. are challenging老师，till是不是现在完成时的时间标志啊? 这道题怎么翻译啊？为什么...
The rolling foothill country of north Georgia was plowed in a million curves to keep the rich earth from washing down into the river bottoms. 北佐治亚连绵起伏的山麓地带被犁成了无数弯弯曲曲地垅沟，这样说，对自己那使肥沃的土壤不致被冲洗到河床里去.
some 通常不用于否定句，但有时可以。如：I don't like some of them. 我不喜欢其中的一些。（言外之意：其他的还是喜欢的）请问下面这句的 some 用于否定句是属于什么用法：If I don’t get some time to have a rest, I can’t work well.
The median number of speakers is a mere 6,000, which means that half the world’s languages are spoken by fewer people than that. 该句选自2018高考英语全国1卷真题，请教各位老师，该怎么翻译好呢？
A throwback to an old Prussian museum project, the Humboldt Forum will house, among others, objects from the Ethnological Museum of Berlin.老师好，请问这个短语是作后面句子的同位语吗？（以前看到的都是放在句子后面）
各位老师好，Heartless human beings are like wild animals, which rip their own kin in the slightest of need and that too without a sign of remorse.①这里that语义上应该是指代human beings对吗？可是不应该用those吗？②就算是用了those，too的作用又是什么呢？中...
This is the life out on a boat with just the seaand the sky.There was earthquake happened killing 100 people and with more than 300 injured.请问一下老师,这两个句子中的with部分,是什么成分?
这是《现代大学英语精读1》第四单元Text A的句子:Night after night have I sung of him,though I knew him not and now I see him.虽然之前并未见到，但我夜复一夜地歌唱有情人，现在我总算见到他了。这里know sb not 是know 的词汇用法还是句法？
To do CPR(心肺复苏), you press on the sick person’s chest so that blood moves through the body and takes oxygen to organs.这是 2017 年高考英语北京卷阅读 A 中的句子，这里的不定式 to do CPR 是时间状语吗？感觉不能分析为目的状语或条件状语吧！