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问题 请教这里使用分词的语法意义

...打开魔盒以致祸害人间。其中一句话，so she decided to open the jar anyway，to see what was inside。 When she did so，all disfortune and evils left it, invading our world。请教老师，这句话中为何使用invading分词形式，是用分词短语作句子的状语吗？我个...

问题 while = and 同时（并例连词）

In Save Money: Good Food, she visits a different home each week and with the help of chef Matt Tebbutt offers top tips on how to reduce food waste, while _____(prepare) recipes for under  5 Yuan per family a day.问：此横线处应填preparing ,说是状语从句的省略，那我要问while作...

问题 crossing, after crossing, having crossed的比较

Crossing the river several times, he find a new way to swimming.请老师帮忙分析一下这个句子。多次过河，他发现了一种新的游泳方法。是不是因为多次过河是一个时间段，所以没有说清是在过河中发现还是过河后发现所以有歧义，因此这句...

问题 单数可数名词前为什么没有不定冠词a

问题句：We sit around a fire or lie in bed.请问该句后半部分的 lie in bed 的 bed 前不应有 a 吗——lie in a bed？另，You never feel the transition from night to day 中，night 与 day 皆为单数，为何前处皆无 a 呢？

问题 for介词短语在句中所做条件问题(可以用来表示条件否)

刘老师，您好，请问一下for介词短语可以用来表示条件嘛，eg: Friends flock together for the similar interests and temoeraments 朋友之间，情趣相投，脾气对味则合则交（一个翻译问题）

问题 定语从句的时态是否有错（北师大高中英语教材）

You can also do a survey online and write a report based on the data you got.句子摘自北师大高中英语必修第三册第8单元(p41)。请教专家，句子中的定语从句 you got 的时态是否有问题？感觉应该用一般现在时吧！

问题 How many people与How many billion people

上面的句子来自2019版人教版高中英语新教材必修一的 Unit 5（p60）。How many billion people speak the UN’s official languages as their native or second language?句中用 billion 是为了表示“多”吗？去掉也可以吧？

问题 语义判定问题

...ould come tomorrow, l would tell him everything.③ I'm writing to confirm the arrangements for my trip to China. l should be leaving New York Airport at 8 p.m. on July 18.第①句解释为真实还是非真实条件句？希望提供一下可靠的类似例句。第②句可否解释为真实条...

问题 do well in 还是do well on

  平时我们常见 do well in, 可是最近看到这么一句话： He did really well on the last English test. 这里用的是介词 on, 为什么不用 in？有什么不同吗？盼望专家老师解惑。

问题 in case与in cases的用法区别

...高中学业水平考试英语试题的“信息摘录”题：People from the West like to use these words in cases where some people in Asia may not think it necessary.句中为什么用的是 in cases 呢？但在词典上只能查到 in case 这样短语，而没有 in cases 这样的短语啊...

问题 include后接动词时只能用动名词吗

...网上看到一个include后接不定式的句子：A sightseeing tour of the city is included to help you get your bearings. 市区观光游也包含在内，帮助你熟悉一下这里的情况。这个句子中的 help 应该是动词不可能是名词吧，因为它的后面还有宾语呢！

问题 a flock of 500与flocks of 500的理解问题

Throughout the period November to February flocks of 500 or more are regularly present. 请问这里为什么用 flocks of 500 or more 而不用 a flock of 500 or more 呢？

问题 endangered animals与endangering animals的正误辨析

...endangering animals 吗？Endangered animals, such as pandas, also live in the valley.我的理解是：过去分词表示完成吧！这里的 endangered animals 是指频临灭绝的动物吧，说明是即将灭绝的动物，或是正在灭绝的动物，对不对？这就应该用现在分词...

问题 表示客观事实一般现在时和现在完成时的区别

Music ______ called the universal language.A. is      B. has been句子意思应该是：音乐被称为世界的语言。这应该是表示客观事实吧，用什么时态？如果两个都可以的说，那表示客观事实一般现在时和现在完成时有何区...

问题 couldn't have been是什么意思

This expedition couldn't have been more timely because as the country slowly opens up, its Asian neighbours and developed nations alike are scrambling to establish diplomatic relations, many of whom would ultimately like to take advantage of Burma's natural wealth.请问：(1) couldn't h...