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问题 keep doing 与 keep having done的用法与区别

英语肯定是可以说 keep doing sth 的，比如：The baby kept crying for an hour.但是，英语可否说 keep having done sth 呢？比如：The baby kept having cried for an hour.

问题 形容词性物主代词后的成分怎么分析？

...种情况，还希望老师释疑。The treasure should be yours for the taking.这是另一种结构的句子但也出现在yours的后面，请问这里for the taking是什么成分？它和yours是什么关系又修饰谁？由于对这样的结构相对生疏，还希望老师能详细...

问题 purpose for doing 还是 purpose of doing

What is Shen Qi’s main purpose for talking to Amy?句子来自2019版人教版高中英语新教材必修一的 Unit 3（p36）。请问句子为什么用 purpose for talking to Amy？可以换成 purpose of talking to Amy 吗？purpose for doing与purpose of doing 有何区别？

问题 that从句用法困惑

...uestion very naturally."Oh yes. In point of fact I've not spoken to a soul for three days. My French isn't exactly brilliant."I wondered as I preceded him downstairs what had happened to the little lady in the tea-shop. Had they quarrelled already, or was his infatuation passed? It seemed hardly lik...

问题 句子中的介词through和for的用法

...ough，got talking with this American，and pretty soon he invited me home for dinner—amazing.请问各位老师，traveling through中的through是什么用法呢？invited me home for dinner又是什么用法呢？不应该是invite sb to dinner吗，为什么用介词for呢？home为什么可...

问题 for a vacation这样表达对吗

想要表达“去某地度假”是go to someplace for vacation还是go to someplace for a vacation或者用go on a vacation to someplace可以吗？如果把vacation都换成holiday是否正确？

问题 for certain中的certain是形容词吗

That is possible...but how can we know for certain?老师，for certain 是副词短语吗，certain 是形容词吗？

问题 control和control for

... Patrick and colleagues at Penn State surveyed 651 college freshmen both before and after spring break.They were able to control for student behavior before spring break, which was a strong predictor of behavior during break. 请问这里为何用control for呢，control不是及物动词吗？

问题 advocacy for 和 of 有何区别？

Ginsburg's advocacy for women's rights propelled her beyond legal stardom and into American pop culture.请教老师：advocacy for 和 of 有何区别？ 词典上都是用的of.

问题 to和for的用法

老师请问to/for作为介词对于...的意思来讲，应该如何区分，是不是要记固定搭配？

问题 be的用法

What good will it be for someone to gain the whole world, yet forfeit their soul?赚得了全世界，而毁掉了自己，又有什么意义？请问老师be在这里是什么用法？如果是it is n for sb to do sth 为什么不用is呢

问题 英语句子成分分析（buy sth for sb）

I am going to buy a gift for her.for her 是状语？定语？间接宾语？

问题 apologize to sb和apologize for sth

apologize to sb的to sb和apologize for sth的for sth是做状语吗？

问题 for wherever…是什么用法

这个图片里句子最后部分的状语部分内容for wherever…，我看不懂他的表达方式，请帮助解答。

问题 ask...for的用法疑问

请问for在这里是介词吗？如果是的话，那么help为什么用动词原形，而不是动名词？