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问题 careful searching问题

Most archaeological sites have been located by means of careful searching, while many others have been discovered by accident.查词典，searching并没有名词词性，那么应该为动名词，动名词的修饰词不应该是副词吗？即carefully searching,这里careful searching怎么理...

问题 定语从句的判断与理解

They all had on the kind of hats that you knew that they didn't really live in New York.这应该是一个定语从句，不知道为什么用了that而不是in which这里应该也不能互换?

问题 spend+宾语+过去分词

北师大新版课本（必修一）有这样一个句子：Some spent the dinner bent over their phones, texting friends online but ignoring the ones who sat right in front of them.想问下这里为什么是bent而不是bending? spend后常接doing的。

问题 green的用法

...a Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour.根据上下文，green的意思应为绿灯的意思，而green本身没有绿灯的意思，这里是省略了light吗？即本身应为green light.

问题 翻译问题

...数(两者以上)，为什么不译成 the delta rivers 或着 the rivers of delta? delta 作为名词性定语为什么不放在river之前，比如：a shoe factory 却放在后面让river去修饰它？

问题 为什么不是water used

冲厕所用了很大一部分水。正确翻译是:Flushing toilet accounts for a large proportion of water use.在这里为什么不是water used 而是water use?

问题 an average前面为啥不用任何介词

Have your meal an average of 1.5 hours before exercising.请问这里an average前面为啥不用任何介词，有什么特殊说法吗？

问题 recognize跟从句还是复合宾语

请教各位老师：recognize后面是从句（从句感觉少了个be动词）还是复合宾语（跟介词短语也没见过）？Perhaps you will recognize some of these IoT（物联网）technologies already at work around you.

问题 necessary可以用“人”作主语吗？

资料上有这样的正误句子：他有必要参加这次会议。误：He is necessary to attend the meeting.正：It is necessary for him to attend the meeting.原因是：necessary 这个形容词不能用“人”作主语。请问老师，这个解释有道理吗？

问题 请问粗体部分的句子是什么意思？

Last year it started submitting itself to voluntary audits, in what appears to be preparation for a public debut.请问粗体部分的句子是什么意思？

问题 助动词加否定和否定名词的区别在哪儿？

He has not thing to do.和He has nothing to do. 区别在哪儿？

问题 what country与which country的区别

What country is next to the U.S.?为什么不是: Which country is next to the U.S.?谢谢解答！

问题 如何理解being civilized

Its hero avoids being civilized—going to school and learning to read—so he can preserve his innate goodness.参考译文：书中的主人公逃避上学读书之类的教化，因此保持住自已天生的善良。请问老师，avoid是谓语动词，后面的being civilized为什么要...

问题 weak做名词的用法

（Weak is he ）who permits his thoughts to control his actions; （strong is he ）who forces his actions to control his thoughts。请问括号内的内容如何理解啊？Weak和strong都是形容词啊，据我所知如果变成名词的话，前面得加the。还有这个“he”这个代词...

问题 不定式作定语的主动用法与被动用法问题

Australia sounds like an interesting place to visit这里为什么不能使用to be visited?