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问题 while doing 用法

请问曹老师，when和while这里引导的分别是什么从句，while doing是什么用法？Its Intelligent Transport System tells drivers when roads are crowded, while changing traffic lights and planning alternative routes that drivers can follow.

问题 He went to school yesterday.句子如何分析

1.句子结构是什么？2.went 在此处是及物动词还是不及物动词？

问题 it's easy to make friends you are rich是什么结构

书上看到一句话 it's easy to make friends you are rich,but a friend in need is a friend indeed.it's easy to make friends you are rich是什么结构，you are rich是定语吗？定语不是只能修饰名词么，看它在这句话里不像是修饰friends的，但是定语可以修饰整...

问题 come late to school还是come late for school

Tom always comes late ______ school. A. to    B. for 网上查过这道题，说 A 和 B 的都有。请老师指点我这道题选什么？ 如果两个都行，翻译上有什么区别？谢谢老师。

问题 be useful to do sth中的不定式是什么成分

A good dictionary will be useful to learn a language.请问：句中的不定式是什么成分？我觉得肯定是状语，但是什么状语呢？是目的状语或条件状语吗？但前面的谓语动词是 be 啊！

问题 be born to be wild / be born in 1994 的分析

He was born to be wild. 请问老师 他生来狂野这句话中， born是否是形容词性？He was born in 1994. 这里的born是否是动词过去分词。

文章 set one’s mind to 和 set one’s mind on 的用法比较

set one’s mind to 的后面通常接something，不接doing something；而set one’s mind on 后面可以接 something，也可以接 doing something。例如：I think anyone can lose weight if they set their mind to it. 我认为任何人只要下定决心都能减肥。（摘自《朗文当...

问题 关于定语从句没有谓语的问题

We need to have actual knowledge on which to base our thinking.第一个句子为什么定语从句只有不定式没有谓语动词？we need to have actual knowledge which to base on our thinking.第二个句子也是，为什么都是to开头的？

问题 willing for是什么成分

If you aren't willing for the ethical rule you claim to be following to be applied equally to everyone.上面的句子成分如何分析？willing for是什么成分，为什么要衔接一个for, 后面的to be applied，中的to be是否表将来？

问题 what 融合性

1、She felt the urge to ask her what had happened. 请问老师to ask her what had happened作urge的定语吗？what had happened是作宾语从句吗？2、Her friends belonged to what were deemed as “ACGer”.what were deemed as “ACGer”作to的宾语吗？to作什么成分呢？what引导...

问题 date from与date back to所连用的时态和语态问题

date from 与 date back to 这两个短语只能用一般现在时，不能用于被动和进行时。可是我看见过 dating from 这种形式为什么呢？前面是一个名词，后面不能用 dated back 为什么？谢谢

问题 难句分析：what better way to celebrate than ...是什么意思

May 18th is National Museum Day, so what better way to celebrate than highlighting the ones most visited in America?上文中的划线部分是什么意思，请老师分析一下。感谢回答。

问题 Pay close attention to the verbs in italics.如何理解

Pay close attention to the verbs in italics.前边两个词不明白：pay=付给，close=关闭。本句为什么译为【特别注意用斜体印出的动词】（来源新概念英语习题）直译应该是什么意思？多谢老师。

问题 need sth for sb和need Sth to sb有什么区别

We need some information for him.We need some information to him.这在句意和组成成分上有区别吗？

问题 感官动词的宾补形式（consider...to be 后面的宾补形式)

感官动词后面的宾补形式是否是名词，do，doing ，done ，形容词，副词，介词短语都可以加 consider ~to be后面是不是能加名词形容词，副词，介词短语。