America will never again have as a nation the spirit of adventure as it __________ before the West was settled.A.couldB.wasC.wouldD.did为什么是选D, 这句话如何分析成分？ 看不懂句子的意思，was settled是被动吗？什么意思呢？句中前后2个as分别是什么意思呢？...
He saw the look of beneficent happiness on the Old Gentleman's face - a happier look than even the fuchsias and the ornithoptera amphrisius had ever brought to it - and he had not the heart to see it wane.他看了老绅士一眼，只见老绅士满脸笑容，对自己的乐善好施感到幸...
Direct measurements of energy balance components are rarely made under field conditions, which can be estimated using meteorological data particularly data atshort time intervals.请问老师，这里particularly data是什么用法啊，是不是在前面加个逗号更好？
It’s not obvious how the capacity to visualize objects and to figure out numerical patterns suits one to answer questions that have eluded some of the best poets and philosophers.这里的how是既当引导词也当限定词对嘛？
...nce stories, it is
preferable for journalists to rely on their own notions of significance and
make their own judgments.明明这句话中不定式描述的是两件事，为什么仍然是it is呢，为什么不用are呢，难道it be句型作形式主语时只能用is?
...imal sightings so we decided to survey garden owners from different areas of the city. Regarding wild animal sighting介词短语修饰experience。to relate是不定式做experience的定语吗？不太懂是什么意思
...师好，原文如下：John had a very good day and put his wallet containing £3000 into the microwave oven for safekeeping. Then he and Jane went horse-riding. When they got home, Jane cooked their dinner in the microwave oven and withou...
... impossible to understand. 3. It's impossible for the job to be finished in time. 4. It's possible to do ... 5. It's possible that ... 1句的likely使用正确，却不符合逻辑，likely不可换成probable或possible，因为可能的只能是事情。unl...
...法：1、过去发生的动作对现在造成的影响。例如：He has finished his work.他把工作做完了。（结果：他可以做其他的事了。）2、过去的动作或状态持续到现在并且已经完成或可能持续下去。例如：He has taught in our school for 30 years.他...
This is the story of Qiqiao Festival. When foreigners hear about the story, they call it a Chinese Valentine’s story. It’s a fine day today, so I hope you can call all meet the one you love.句子来自高中英语人教版必修三Unit 1。
...。2.People value every opportunity to get away from the hustle and bustle of the city.我认为这里的不定式充当后置定语对吗？疑惑的地方就是同样的结构，在不同的句子中，书上认为一个做了补语，一个做了定语。望老师指点。
... have found a youth that refuses to shy away from the very real challenges of Africa, that is honest about what needs to be done and what their role has to be to achieve this.1、这里的found a youth that ……怎么解释，应该是found that a youth ……？2、,that is honest...
The event, staged 100 years after the publication of H. G. Wells' The Time Machine, referred to periods from the intervening century through surreal juxtapositions and magical fantasies. 请教老师：referred to periods from the intervening century的理解，读到这一句，怎么也...
While the effect of cows milk harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.请问这里的 time 为什么不用复数？