问题 be on alert of 这个短语中alert要加定冠词吗

问题 how that the quality of human life on the quality.

I already have declared as emphatically as I know, how that the quality of human life in our society depends on the quality of the schooling we give our young people.

问题 分析句子句子主干

分析句子，并指出主干:In an English class, students from all the contries from the east were required to introduce some of their places of interest that are world-famous.

问题 the need to do后面的to do是不定式同位语还是不定式定语

...n would have been consistent with the need to keep the barley dry and safe from rodents, so that makes sense. 来自听力材料  These new methods reduce the need to use harmful chemicals on crops.  来自韦氏高阶字典之前也看过老师们的精彩回答http://ask.yygrammar.com/q-...

问题 on doing sth与in doing sth的区别

on doing sth和in doing sth都可以表示时间，意思是“当做某事的时候”，请问它们的区别是什么？

问题 what...think of...句型结构分析

问：What does the writer think of life on Mars ?答：Better than life on the Earth ?这里的think of 我感觉有3种分析：1）固定短语think of +名词，我认为这里不是。2）认为这里的of=about，即What does the writer think about life on Mars ? 这样的话，就是think wha...

问题 分析: to not overthink and just keep on creating

"I actually find this quite satisfying, to not overthink and just keep on creating, and then go around sharing dance with everyone," he says.辛苦专家老师分析一下句中的to not overthink and...成分。另，不定式否定通常是not在to do前面，这里的not 却在动词后，怎么...

问题 怎么判断一个词组中的up/on之类词是副词还是介词

(1)set aside (2)add up(3)exist on(4)come up比如(1-3),我怎么判断这些动词后面跟着的词是副词还是介词? 在线字典好像都没法查词组的词性...另外像(4) come up 这样的词组,up应该是副词吧,可为什么我不能写 come the money up,而要写come up with t...

问题 It was just after sunrise on a June morning句子成分分析

主语It+谓语was+状语just after sunrise+宾语on a June morning请问这样划分是否正确呢？顺便请教各位老师，有没有哪本书系统的讲述句子成分的？

问题 句子分析

It seems that there are not a lot of good role models to choose from, at least not from the "typical " choices that we usually that we usually think of as role models.划线部分在这里是省略了吗？如何翻译？

问题 valid的用法疑问

Offer valid for 12 months from date of purchase.请问老师valid是形容词，这里什么用法？还有from date of purchase是不是应该加the，day是可数名词呀?

问题 句子成分分析（that's her on top of the furniture)

My mistress's niece, that's her on top of the furniture, is not going to pay you the extra twi pence.老师好，请问that's her……的结构是什么？在整个句子里作什么成分？

问题 成分分析 如何理解此句话

Now, minerals are not alive, of course, so this is not evolution in quite the same sense you'd have 

问题 现在完成时的运用

China’s indomitable punters now hope that a trundling taurus has at last arrived. 请教老师，为什么这里用现在完成时而不是一般将来时呢？现在完成时主要表示什么意义呢？

问题 冠词问题 新概念课文句子

新概念课文里有一句话  It now came straight towards them at tremendous speed. 这里为什么没有a？ at a tremendous speed？