正在学习被动语态，做题的时候有两个句子中的be动词的位置有点搞不懂。教科书例句：How
ofen are these rooms cleaned？遇到的问题的句子：1.A film
studio is a place where films are made.2.How many
languages are spoken in Switzerland?例句1和2中为什么不...
By the early 1940s, tractor design had progressed to the stage where a hydraulic lift system had been developed, as had the power take-off shaft used to drive trailed implements such as a self-binder or a manure spreader.as 直接接动词，as 和 had 之间省略的主语是什么？as 在这里...
A huge snowstorm hit on
February 1. A musher named Kaasen had to brave this storm. At one point, huge
piles of snow blocked his way. He had to leave the trail（雪橇痕迹）to get around
them. Conditions were so bad that it was impossible for him to find the trail again.
The only hope was Balto, ...
今天遇到一个句子The tiger moth, indeed, is a clear example of a concept that many
predators intuitively understand that creatures with the brightest coloration
are often the least suitable to eat.语法书给出的答案是：第一个that是定语从句:that many predators intuitively under...
She had gone alone, but the children were to go to the station to meet her. And, loving the station as they did, it was only natural that they should be there a good hour before there was any chance of Mother's train arriving, even if the train were punctual, which was most unlikely. 请老...
1.Rarely has a technological development has as great an impact on so many aspects of social,economic,and cultural development as the growth of electronics.2.Americans tend to think from small to large. Let us take as simple an example as the addressing of envelopes.3.His function is analogous to th...
下面的内容是2024年高考英语北京卷的第22题，为什么B、C、D的第一个词是动词，而A的第一个词却是名词？22.
To complete the programme, students are required to _________.A.
development tests B.
participate in pair meetingsC.
welcome new students D.
work on weekly v...
The top-performing companies described in the book had two common features, Mr Richer noticed: they treated both customers and their employees well.请问老师上面这个句子features后为什么是逗号不是句号？As far as money was concerned, he says, “we have more than enough already”...
After I had pictured it over and over again in my mind, the big day
finally arrived: my first day at senior high!这是外研版新教材高中英语必修一第1单元中的句子(p2)。以前从未见过 big day 的说法，难道不应该是 great day 吗？
I
did not altogether believe my eyes. The days that had passed since I left
Wellington seemed extraordinary and unusual. Wellington is trim and neat and
English; it reminds you of a seaport town on the South Coast. And for three
days afterwards the sea was stormy. Gray clouds chased one another acro...
...nd, which she associated with abundant Thanksgiving meals that she claimed
had "a deep moral influence." 请问…that she claimed had …, 这里应该是双重定语从句，为什么不省略做宾语的that, 却省略做主语的 (that) had…
.... I agreed to go over on the next day but one, and to stay in Paris till I
had achieved something. Then, as it was growing late and we were both exhausted
by so much emotion, I left her.请教老师：I agreed to go over on the next day but one 中，but在这里是什么意思？ on the next day bu...
对于 however/instead 的选择，经常出错。例如：There are many ways to describe people using the word "skin." If someone is thick-skinned they are not easily hurt emotionally. You can criticize them or be unkind to them and it simply rolls off their back...