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问题 不定式和现在分词的区别(for sb doing与for sb to do)

So the U.S. Surgeon General has suggested that e-cigarettes may be a useful toolfor adults trying (try) to end their tobacco use,or quit.为什么空格部分不能用不定式to try?（空格部分为 trying）

问题 spring to one's relief 是什么意思？尤其是spring在这里的用法和含义？

"Whoever can look upon that mother's grief without springing to her relief has a heart of stone." 请教老师：spring to one's relief 是什么意思？ 尤其是spring在这里的用法和含义？麻烦老师帮忙翻译一下。谢谢！

问题 想请教下这个句子中from...to...结构在句子中所作成分，谢谢！

...mage,from the collapse of city-centre cafés to the $16bn budget shortfall that New York'ssubway system faces. 想请教下这个句子中from...to...结构在句子中所作成分，请问是 economic damage的定语还是to limit the economic damage的状语呢？

问题 句子其他内容不改变位置，relate to和is related to是否可以直接替换

... class discussions.这些读物与课堂讨论有关。The survey suggests that financial success is closely/strongly/directly related to a person's level of education.调查显示，经济成就与一个人的教育水平有紧密/极大/直接的关联。

问题 曹老师解答的《时间和条件状语从句用现在完成时的问题》自己有二处不是太懂

...2：如果是过去的习惯是否可以加不确切的时间呢？比如 I taught English before.

问题 关系副词where不作句子成分就直接引出一句话对不对

He got into a situation where it is hard to decide what is right and wrong.定语从句中的关系词都要在从句中作成分吧？这里的 where 什么成分都不作就直接引出了一句话是不是不对啊？

问题 单词不算难但句子结构复杂(请老师指导细划分句子成分)

...smartphone presents just as much danger to motorists as someone jaywalking and should be held, at minimum, to the same penalty.本句单词感觉不算难，但是句子结构复杂，烦请老师帮忙细划分解释一下句子成分。先谢谢了!

问题 句首强调与句末强调的理解与区别

...书上看到这样的分析：On a sunny afternoon in late November, John and Barbara were married.你是否能注意到，把 on a sunny afternoon in late November 置于句首不仅达到了强调状语的作用，还同时强调了处于句尾的动词 were married。至此，你应该能够感...

问题 “to filter out”中out词性

...To filter out what is unique from what is shared might enable us to understand how complex cultural behavior arouse and what guides it in evolutionary or cognitive terms.   主要问题在前半部分：老师讲“what is unique”前面是动词，所以“what is unique”是宾语从...

问题 make what it is还是make how it is

The seaside here draws a lot of tourists every summer. Warm sunshine and soft sands make______ it is.选项有what, which, how, where，在what和how中纠结。另外，后面一句该怎么翻译比较好呢？

问题 独立主格中同时有倒装

2017年12月四级阅读中句子：Even men and schoolchildren are swelling the ranks, among them my friend's three small grandsons. 其中的among them my friend's three small grandsons属于名词+介词短语独立主格。但正常语序应该是my friend's three small grandsons among them.这...

问题 twice as…as…的用法

...e as... as... 是一个比较结构，表示“是......的两倍”。在 And in America, people who receive 25% of their daily calories or more through sugar are twice as  likely to die from heart disease than people who receive less than 10% a day. 这个句子中，twice as likely to die from h...

问题 no more than 怎么理解其用法和含义?

... will check the box for fantastic Election Day weather. For the few of you that may seea little precipitation (降雨) it's no more than you would typically see in early November.麻烦老师帮我具体详细分析一下这个比较句 it's no more than you would typically see in early Nove...

问题 ask for sth of sth

Fearing that their countries might someday be lost to rising seas, they asked the intergovernmental panel for further study of a lower threshold.这些岛国害怕自身有朝一日会因海平面上升而被淹没，因此请求联合国气候变化政府间专门委员会进一步研究出全球...

问题 辞书质疑(18)：对《Collins双解词典》一处释义的质疑

下面的内容摘自《Collins双解词典》：PHR-CONJ-SUBORD   (与过去时连用，引出一个相对合理的理由)即使仅仅为了(或因为)… You use if only with past tenses to introduce what you think is a fairly good reason for doing something, although you realize it may not be a...