By the late 1970s, neurologists had switched to thinking of them as just "mental noise" - the random byproducts of the neural-repair work that goes on during sleep.请问老师，这里的to thinking是不定式还是介词呀？此时的Switch是及物还是不及物呢？To thinking是做Switch的...
Economy
is one powerful motive for camping, since after the initial outlay upon
equipment, or through hiring it, the total expense can be far less than the
cost of hotels.请问为什么两个
since after 连在一起用啊？
Writing was so difficult and painful for me that my teacher
had allowed me to present my paper on the sinking of the Titanic by
acting out a play, where I played all the parts.请问专家老师，这里的 where 引导的是什么从句啊？定语从句？它前面的 play 算是地点吗？
The
peachful landscape of the "Emerald Isle" and its many counites is a true feast for the eyes, with its
rolling green hills dotted with sheep and cattle.句中为什么用is？
Chances are that you will
not take a seat at the head of the table or midway along either side: these are
places where the boss would naturally sit.从语法角度上看，冒号后面的these are…是对前面内容的补充说明吗？它充3当什么语法结构？
...时意思差不多，有时甚至可以连用。如：
I can just reach the shelf, if I stand on tiptoe. 我踮着脚才刚能够着架子。
I can only reach the shelf, if I stand on tiptoe. 我踮着脚才刚能够着架子。
I can only just reach the shelf, if I stand on tiptoe. 我踮着...
我在很多地方能读到这个句子的被动语态用法，比如：The
2010 winter is planned to be announced during the month of April.Business
areas that consistent with the new strategy are planned to be divested or
managed for value.This
objective was planned to be met by implementing 4 mai...
We noticed that you've ordered two tickets for the SHB band's summer concert. However, we also see that you haven't made the payment yet. _____ you still intend to attend the concert, please make your payment through the webpage as soon as possible. (A) In case ...
The song of the young girl reaping in the fields is incomprehensible to him, and what he appreciates is its tone, its expressive beauty, and the mood it creates within him, rather than its explicit content, at which he can only guess.请问：(1) within him 是什么意思？(2) at which...
Nowadays, real talents are in great demand, who need to be competitive in the job market with the adaptability to new challenge.上面这段话中，with the adaptability to new challenge 结构是做 job market 的后置定语呢，还是说做伴随状语修饰行为动词need？
英语翻译the brain finds it best to keep smell receptors available for unfamiliar and emergency signals such as the smell of smoke,which might indictte the danger of fire.这句话中的 available for如何理解，求详细解释
Inside the shelter, he latched the door, and looked around to see that his family was squared away. Now it began. The waiting. see在这句中是检查的意思，译文是检查查看他的家人是否就位。怎么有个选择性是否的意思。是译文错了吗？
You could tell from their faces and their eyes that they found the joke funny, but not one of them was going to laugh, and give him the chance to win the competition.tell是分辨的意思，that从句做tell的宾语，from做状语吗？
For forty years Jane Goodall has been outspoken about making the rest of the world understand and respect the life of these animals.1.has been 是is 的现在完成时，那么 be动词时有完成时态的？2.about介词短语充当什么状语呢?