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问题 be joined by是什么意思

Hello and welcome to School Talk! Today I’m joined by a former student of our school, Lisa Osborne.这是外研版新教材高中英语必修一第1单元中的句子(p9)。请问句中的 I’m joined by...是什么意思？什么用法？

问题 as...as结构后面的介词可否省略

His father began to work ____ his childhood.A. since        B. beforeC. as early as    D. while这个题目答案选C，是否省略了介词 in？第二个as 是连词，常省略动词部分我知道，但是介词不应该省略吧?

问题 新概念三第57课( 过去完成时)

He became mortally ill a few months before we had planned to go ......书上的解释是：在他计划回国的前几个月，他突然身患绝症。时间顺序上说，他生病在前，计划回国在后，为什么反而计划回国用了过去完成时呢？

问题 everyone作主语时用代词he与they

语法填空:Not everyone in this group prefers to go there by air, do they?为什么不是does he?

问题 sleep 后面接的过去分词做什么成分

I sleep snuggled up warm and close to my brothers and sisters. 请问这里的snuggled up做什么成分，只知道过去分词可以做后置定语，难道是做后置定语表被动修饰I吗？感谢解答！

问题 逗号+vice versa是省略句吗

例句：the centre was simultaneously looking to a time when leading researchers could also be artists, writers and poets, and vice versa. 如果把vice versa整体当作副词的话为什么前面加了and？这是并列什么？

文章 quantity 和 quantities 与主谓语一致

...uantity of birds ________from nutritious eggs and the babybirds were bound to be taken good care of. (hatch)大量的鸟儿从有营养的蛋里孵出来，这些幼鸟有必要被好好照顾。（p.102）该书所给的答案是was hatched（p.203）。这个答案是错误的。正确答案应该...

问题 不定式作定语用主动式还是被动式

That is a question to be worked out. 句中的不定式用被动式对不对？因为 work out question没有主语？

问题 on a diet of什么意思

 Its teeth and skeleton lead scientists to believe Spinolestes was a “ground dweller” that survived on a diet of bugs.查了下字典 a diet of 有大量单一的事物的意思？这里是这个意思么？还是饮食习惯？

问题 句末的“动词+介词”（后面可以不加成分吗）

I member a very superior young man who found three little girls extremely tiresome to deal with.疑问：经常看到这样句尾一个动介词组（动词+介词），请问它后面不是一定要加成分么？

问题 这个非限制性定语从句充当什么成分

Li Ming, who is in the room, wants to ask you some question.老师，这句话我有几个问题要问。我先问第一个问题：非限制性定语从句 who is in the room 在句子中充当什么成分？

问题 not...any but结构意思

I have excluded him because,while his accomplishments may contribute to the solution of moral problems,he has not been charged with the task of approaching any but the factual aspects of those problems这句话主要是后半句如何理解？not...any but结构意思？

问题 check reality是什么意思

Smartphones make it easier and more convenient to check reality, watch video clips, read weibo.这是2016年高考题（江苏考卷）中的一个句子。我对其中的 check reality 不理解。在网上查了一下，它的意思可能是“面对现实”“检查现实”等，但与后面的...

问题 副词的用法（副词能修饰整个非谓语短语吗）

“But why don't you scream now?” Alice asked，holding her hands ready to put over her ears again．ready 修饰后面的动词不定式吗？again 修 put over 吗？

问题 英语的双宾动词都是一律这样的用法吗

Catherine gave birth to four sons.能改变成 Catherine gave four sons birth.可以吗？