...sp; the center of our planetary system was a difficult concept to grasp in the Middle Ages.A.It is the sun and not the earthB.Being the sun and not the earthC.The sun and not the earthD.That the sun and not the earth疑惑：这道题上课的时候，老师偏向于选择选B。但是...
...er free, and always
with a shared smile.2. Dancers and
choreographers seem to have the toughest time of it, earning the worst pay and with
the least education.3. I have watched, very carefully and with great respect, the theory and practice of selling satisfaction
and serving millions of people on a...
...r students of English一书§2.20节的脚注原文如下：The order OPERATOR+SUBJECT will sometimes be found in indirect
questions when the operator is the full verb BE, as in (What’s the matter?) Tell me what’s the matter, instead of Tell
me what the matter is.其中的instead of被赵教授...
...个句子，全句为“The meals ship in pre-portioned baggies according to the dog's nutritional needs.”其中文解释为“根据狗狗的营养需求，这些食物装在预先分配好的小包里运送。”我的问题是：ship 一词为什么不用被动语态 be shipped 而用了原...
VOA: 《NASA Makes Progress Toward Deep-space Travel》Saturday from the launch pad at NASA's Stennis Space Center in Mississippi,the serospace agency tested its space launch system. Rockets fired for roughly eight minutes, generating 725 metric tons of thrustwhile guzzling more than 2600 cubic met...
a great deal, a lot 这两个词都可以作副词和名词，意思一样，它们有区别吗?作副词：She’s feeling a lot better now.The boy knows a lot about history.Now the old man is a great deal better.作名词：Thanks a lot She seemed to have suffered a great deal.
...句分析为定语从句。例如：Life as we know it needs water and air to survive.This is history as it was lived by the men of the 505th Regiment.最近偶然间读到南科大的一篇有关于 as一词的学术论文。论文中把传统语法中的“as引导比较分句修饰名词时，as...
...级词汇(星火英语)》时发现一处不理解的地方，Maybe an automatic recorder would be placed when food is removed from a refrigerator。这里的recorder似乎改为order合适，而place an order 正为下订单之意。原文如下：Food might not be purchased from a grocer...
...h century on, as Manchus living in China were assimilated into their environment while the Manchu homeland directly adjoining China was opened up to all kinds of influences.(句子来源：quora)疑问：1. that of the Qing dynasty and the wider Manc...
... usually resulting in a crowed when ascending, people came up with an idea to build an artificial wall that imitated the surface of a real mountain and on which most of our competitions are held now.
The relative precision with which these dances were conducted might lead to the proposition that they were somewhat mechanical in their execution. However, Schlemmer was not interested in pursuing such mechanical perfection for he considered that the human being should remain at the centre and as pu...
...midt , the nation's cyber-czar , offered the
federal government a proposal to make the Web a safer place——a voluntary
trusted identity system that would be the high-tech equivalent of a physical
key , a fingerprint and a photo ID card , all rolled into one.问题2: 请教曹老师，过去分词...
...emed that Professor McGonagall had reached the point she was most anxious to discuss, the real reason she had been waiting on a cold, hard wall all day, for neither as a cat nor as a woman had she fixed Dumbledore withsuch a piercing stare as she did now.翻译（豆包）：不管是猫形态还...
...mathematics. 他的数学(知识)很好。
He has a wide knowledge of history. 他有广泛的历史知识。
It is necessary to have a good knowledge of the essentials of English grammar. 了解英语语法的一些要素是必要的。
2. 我的疑问不包括 have some good knowledge of sth...