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问题 英语难句分析与理解

Snakes did not acquire their poison for use against man but for use against prey such as rats and mice, and the effects on these of viperine poison is almost immediate. 蛇产生毒液不是用来对付人类的，而是用于捕食老鼠耗子之类的猎物的， 毒蛇的毒液几乎能立...

问题 either的翻译（以及either与each的区别）

I give an ice cream to each of the twins.我给这对双胞胎每人一个冰淇淋。请问可否用 either （任一，每个）。 即 I give an ice cream to either of the twins.each 翻译成：每个。 either我看词典里 也有两个翻译：（任一，每个）

问题 incentive to do sth中不定式的用法

 The promise of a job will give Mary an incentive to pass the exam.请问老师，incentive to do sth中不定式的用法是哪个？还有ability to do sth。

问题 定语中的谓语单复数判断问题

I am one of those people who go out of the center for help.He is the only one of those boys who is willing to do this job.请问2个句子中，ho从句是分别作those people 和 those boys 的定语么，为什么从句谓语的单复数判断不是依据从句的主语呢？

问题 这里的介词for是什么用法含义，怎么理解

What we are making is a pod moving inside of a tube at the speed of an aircraft for a fraction of the energy consumption.我们制造的是一个在管道内以飞机的速度移动的舱室，但消耗的能量只是飞机的一小部分。这里的介词for是什么用法含义，怎么理解？

问题 bring sth over 和bring sth 有何区别

bring sth over 和bring sth 有何区别？例如 I‘ll bring the dog over by nine .可以把over去掉么，变成 I'll bring the dog by nine.  这样可以吗?

问题 对straight ahead of him短语的疑问

Straight ahead of him he saw between the tree-trunks the sun, just rising,very red and clear      Straight ahead是副词短语吗，若是会为什么后面会有of him 。副词和介词是可以搭配应用的么  。谢谢老师回答！

问题 用作介词from的宾语却用了关系副词where

The 14 countries where the passengers were from are listed below.上句中关系词为什么不用关系代词 which，而用了一个关系副词 where？用作介词 from 的宾语却用了关系副词 where，这不奇怪吗？

问题 though在句中的词性和理解

老师好！Though much more difficult to understand than the traditional paintings, they were more thought-provoking.我是这么理解的，though本身既能做连词也能做副词，在本句中，由于“Though much more difficult to understand than the traditional paintings,”缺少主语...

问题 be sorry for与be sorry about的区别

I feel sorry about the poor man. I feel sorry for the poor man. 请问这两句有区别吗? 一个用for，一个用about。

问题 主句为过去时态时从句一定要用过去时态吗

请问这句话用 were、are 哪个更好？The students were told that they (were / are) to meet the school gate at two this afternoon.主句为过去时态时从句一定要用过去时态吗？但要注意句子中的 this afternoon。

问题 onto的理解

From the middle-class family perspective, much of this, understandably,looks far less like an opportunity to exercise more financial responsibility, and a good deal more like a frightening acceleration of the wholesale shift of financial risk onto their already overburdened shoulders.【参考译文...

问题 That is when...是什么句式

...hat is when U.S. health officials ordered people to stay home to help stop the spread of the coronavirus.请问老师，问：1. 句子开头That is when这是什么用法？属于什么从句？2. ordered...to stay home to help stop.....这里连用了两个不定式，分别是作什么成分，...

问题 如何判断 to 是介词还是不定式符号

我查了剑桥的例句：Police are still no nearer to solving the crime. 警方在侦破此案上依然没有取得任何进展。在字典例句中，前面是主系表，to solving the crime 是状语。我这样理解对吗？想知道这里不可以用to solve 是因为讲不清不定式在...

问题 before主句的时态可以是现在完成时吗

老师好！向老师请教一个句子：Though they’ve been around long before we walked on the earth, sharks still attract us to this day.请问：they’ve been around long before we walked on the earth 中的 have been around 的时态是否合理，是否应改为had been around？