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问题 such as 表举例时在句子中是什么成分

Data about the moon’s composition, such as how much ice and other treasures it contains, could help China decide whether its plans for a future lunar  base are practical.such as后面跟的是什么从句？such as+从句这一整个部分在句子中是什么成分？是插入语吗？

问题 although...but...与although...yet...

英语不能说 although...but...，这是众所周知的，但为什么可以说although...yet...呢？but与yet都是并列连词啊，都表示转折啊，这可以用语法来解释吗？或者只是习惯用法，要死记？

问题 有关终止性动词与静态动词一般进行时用法的问题

...示她正在开门，终止性动词动作虽然短暂，但也是有过程的，所有终止性动词都有这种用法吗？2，为什么有些静态动词有动态用法，例如She is wearing a white shirt.表示她正穿着白衬衫，类似的静态动词还有哪些？

问题 If it were not for…用于过去情况

...culties. 要不是他们帮助，这些困难我们不克服不了的。（从句用的were not for，而主句却用了couldn’t have got）请专家解释一下最后一个句，它对吗？非常感谢！

问题 one from another的用法

For some time Thomas Henry Huxley and his workmates had been discussing the possibility that animal species had evolved, one from another.这里的one from another是作什么成分？是插入语还是状语？还是看成独立主格结构（代词+介词短语）？

问题 花费时间做某事的表达

Directed by Guo Fan, the film stars actors Wu Jing, Ng Man-tat and Li Guangjie and took around $50 million and four years to make.这是国务院APP英文版中完整的一段话，先抛开过去分词短语的用法是否得当。学生认为好像没有sb took some time to do sth的用法吧？

问题 用but only连接句子有错吗

I want to buy a house, but only I haven’t got enough money.有人认为这样的句子有错？请老师分析一下，谢谢！

问题 翻译问题

人类学家的行为与他的话比较是反义词。译文: The anthropologist acted as antonym comparing to his words.问：这里的comparing是不是书上印错了，应该是compared to his words =when they were compared to his words. 还是我那里错了?

问题 a step further成分分析

 I'd like to take this idea a step further.take sth a step further, sth是宾语， a step further是宾补吗？其中further是副词作后置定语修饰a step吗？

问题 省略引起系词和表语被逗号分隔

章振邦语法书的省略一节有这么个例句：“如果主语和谓语动词都不同，只是宾语和主语补语相同，便省略第一分句中的宾语或主语补语”George was (angry), and Bob certainly seemed, angry.但是系词和表语是之间是不可以用逗号的，这是...

问题 He is lying in the bed ,reading a book.分析句子结构

...词短语还是动名词短语？3. reading a book是做状语吗？还是定语？4.可不可以改成这样： He is lying in the bed, while he is reading a book.

问题 as he is什么成分

I don't think that anybody can grow unless he really is accepted exactly as he is.如何理解这里的as he is，是做状语从句吗？

问题 mathematics作主语谓语动词用单数还是复数

mathematics（数学）应该是抽象名词吧，所以它应该是表示单数意义的，但老师说它既可表示单数意义也可以表示复数意义，不是很理解，请专家老师分析一下，非常感谢！

问题 data shows的结构以及work+时间用法的分析

...st Mexico and Costa Rica. 这里的data shows可以看做后面的that从句前置，是前面的整个句子吗？这里的work+时间是省略了介词，还是不及物动词+时间状语？

问题 为何这里 need 后面要加 to be 呢

A: My boss told me I couldn't take any time off to go on holiday this year.B: That's crazy! Did he say why?A:He said that the company is doing well so they need to be fully-staffed at all times.老师：您好！我不明白为何这里 need 后面要加“to be”呢？谢谢。