Several parents spoke of requests for work being ignored or refused by the school.这句话being+done是现在分词作后置定语，但我记得以前学的语法是用过去分词来做这种被动情况下的后置定语，因此我觉得being直接可以删了是不是？后面直接跟ignored....
It is important forthe government to tighten regulation on some behaviour,especially those which have been proven to be damaging to health.句中为什么用to be damaging to health这种形式?damaging是形容词吗？
...eryton was necessary to amuse their morning hours and furnish conversation forthe evening.每逢没有更好的事情可做，就必定往梅里顿跑一趟，这样早晨可以消遣消遣，也为傍晚的闲聊搜刮一点谈资。better offered为过去分词作后置定语，我想问老师这...
He was saved by Dorothy in a great field, and joined Dorothy to go to
the Wizard in search of brains.这句中加粗的地方为什么用介词 in，一般表目的不都是用 for 的吗？麻烦高手给指点一下，不胜感激。
Forthe better part of a century, most biologists have been reluctant
to use those words, mindful of a principle of evolution that says ‘evolution
cannot run backwards’.mindful of...是什么结构？书上说这是独立主格结构，我不太明白......
...seed是名词还是动词？上下文：
China has gained recognition for its pioneer work on true potato seed. The
history of true potato seed (TPS) in China dates back to 1959 when
research was started. Now in china an area of 2500 acres is sown to seed.
...e at 3 p.m.on 9 November.At the end of his speech,there will be 30 minutes for questions and answers.So,if you are interested in knowing more about China, you mustn’t miss the chance to meet David at the open day.我对最后一句中的 at the open day 不理解，为什么用介词 at 呢？在...
... books, ancient and modern, Chinese and foreign⑥动词不定式作同位语He gave the order to start the attack.We all have a common desire- to build up socialism in China....
...y be of flesh and blood， may they not？ There are two questions waiting for us at the outset. The one is whether any crime has been committed at all； the second is， what is the crime and how was it committed？ Of course， if Dr. Mortimer's surmise should be correct， and we are de...
... to enjoy our dinner together.3. The sun (having) set,we had to stop there forthe night.4. Our luggage (having) arrived,l was dressed in a few minutes.查阅葛传椝惯用法词典，gone,come,arrived都可以作为形容词，但是，手头词典没有查到set作为形容词，表示“太阳...
...ed the Negro community must not lead us to a distrust of all white people, for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny.问题3：as evidenced by their presence here today这里的as是关系代词指...
...nkton species in the laboratory and then
computing community grazing rates for field conditions using the known
population density of grazers.句意：由吉恩所进行的研究，对自然条件下的群落捕食速率进行了估算，其手段是通过测量出实验室内单独的浮游动物...
...ees so the animals could seek shelter during the
daytime. He turned to theforest department for help but was told that nothing
would grow there. However, Molai went looking on his own and discovered a
nearby island where he began to plant trees. 我对其中的went looking 不理解。好像语法...