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问题 归属性和确认性表语的判断问题

...语是哪一种？如A plane is a machine that can fly；A knife is a tool for cutting with.弄清楚这个问题不为别的，主要是为了更好地理解句子的意思。期盼老师的指点。

问题 现在分词做定语还是状语

...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...

问题 when, as, while, since的区别

_____ Tom waited for the exam result, he became less and less patient.  A. When    B. As      C. While   D. Since 答案为 B。请解释一下 when 与 as 的区别，谢谢！

问题 ing做主语和to do做主语的区别

Missing the train means waiting for another hour.这句话的missing 可不可以改成 to miss。ing做主语和to do 做主语有什么区别。

问题 同一个句子三个that的作用

Although scientists have known for a long time that about 2% of people suffer from face - blindness, which means that they have huge problems recognising faces, they are only new realising that some people are the exact ones.这三个that的作用是什么呢？

问题 非谓语动词done和being done辨析

The man kept his eyes ____ on his baby for quite some time.A fixed   B being fixed请问这里为何用A ，非谓语动词做宾语不是只能用to do 或 doing 吗？

问题 区分when引导定语从句和时间状语从句

Do you remember all those years when scientists argued that smoking would kill us but the doubters insisted that we didn't know for sure?这句话并不缺成分，为什么when引导的是定语从句而不是时间状语从句？

问题 go looking / went looking的说法对不对

...ees so the animals could seek shelter during the daytime. He turned to the forest 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...

问题 请教介词短语修饰的成分

This attack was retribution for generations of atrocities committed by A against innocent B.The impacts have wreaked havoc on power, transportation, and desalinization infrastructure far beyond the immediate blast zones.1.第一句话有两处理解不好：1)generations of atrocities中of在...

问题 这个since的主句为什么不用完成时态？

当since表示“自从”时，它的主句谓语总是要用完成时态的，但是下面这句中，主句却用了现在进行时，请问这是为什么？House prices are rising for the first time since November. 房价自 11 月以来首次上涨。

问题 定语从句问题（最后一个you是否是多余的）

You're the one who you said you were looking for a fight with Oboi. 你才是你说的要找鳌拜打架的人。这句话中的最后一个 you 是不是应该省略掉呢？

问题 英语长难句结构分析

For this novelist whose personal obscurity was more complete than that of any other famous writer was always quick to insist on either complete anonymity or on the propriety of her limited craft , her delight in delineating just "3 or 4 Families in a Country Village."句子看了好久都...

问题 用副词还是形容词（temporary/temporarily）

but, what if you thought about making the change only temporary/temporarily--say for 30 days-- and then you 're free to go back to you old habits? 问：make sth adj/adv,这里的用temporary还是temporarily？

问题 求解答。

____for a long time, most of the crops in this area died from lacking water.A.Being no rain      B.There was no rain  C.To be no rain   ...

问题 everyone和anyone的区别

The math problem is too difficult for ______ in our group to work out. Would you please do us a favor and explain it again?    A. someone    B. no one    C. anyone    D. everyone请教各位老师，这里的答案是选择C还是D, 另外 是否跟题干的too to 表示否定意义有...