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问题 成分分析

Darwin's theory was that the succession from one coral reef type to another could be achieved by the upward growth of coral from a sinking platform, and that there would be a progression from a fringing reef, through the barrier reefstage until, with the disappearance th...

问题 《剑桥学生英语语法》中p175 中的一句话该如何理解

The content clause in [ⅲ] is introduced by the subordinator that, but the rest of the clause does not differ from that of the main clause These people had been invited. (Huddleston & Pullum, 2005, p. 175)该怎么理解？differ from that 中的 that 又指代什么呢？例【iii】为：I do...

问题 原因状语从句

选择题：Men differ from animals -----they can think and speak.A.or which B.for that C.in that D. in which 答案选c,但是想请问B选项for 也可以引导原因状语从句，可以和that搭配吗？

问题 It’s the first time that…的主句与从

我知道It’s the first time that…的从句时态要用现在完成时。如：It’s the first time he has come here. 这是他第一次来这儿。同时也知道It was the first time that…的从句时态要用过去完成时。如：It was the first time that I had seen him. 那是我第一...

问题 定语从句先行词定冠词的问题

...是那个人was shot by。我不能用the修饰man？假如I killed a rat that ran into my house.（不确定家里跑进了一只或者几只老鼠，我只杀了1只）I killed the rat that ran into my house.（确定家里跑进来一只老师，并且只杀了那一只）这两张理解正确吗...

问题 过去时的委婉表述

...般过去时的委婉表达是什么呢？比如I would do it by myself at that time. 如果想用委婉的语气表达这个句子该如何时态后移? 我猜想是不是这个说过去发生的事情本来就不是多么强硬的事情，所以不存在对应的委婉表达，请问对吗？

问题 这个句子为什么用现在完成时，而不是created 呢

Recently，researchers at Columbia University in New York （）a 3D printer that make cheesecake.括号里的答案是have created，那么想请教一下为什么不是created，而是用have created呢？

问题 XXX, and yet. But still 请问这是什么意思

正在看一本书,里面有这么一句话不理解:You’d want to write that one off as the oldest mind trick in the book, and yet. But still.我记得之前也遇到过 XXX, and yet. But still. 这样类型的句子.请问该怎么理解这句话?

问题 老师好，请问 It is wrong the way they treat that poor an

似乎和Just do it the way i do.的the way不一样，It难道是形式主语？这种指代名词的形式主语倒不常见，请老师指点

问题 will 使用困惑

... wait here till I come back.5)will(表执意，坚持): Jack will do these things !6)will/won't: The window won't open7)will: Accidents will happen 请教老师：a)以上1)，2)，3) 这3句是否都可以用一般现在时来替换will呢？（即Some birds fly away to...;  ...in economic activi...

问题 怎么理解 I will ... if anything should do sth, should可用were to替换.

.... somewhat formal — used to talk about the result or effect of something that may happen or be true…I will feel very guilty should anything go wrong. [=if anything goes wrong]—usually used with ifI will feel very guilty if anything should [=were to] go wrong. … ”  --- ( Merriam-Webster's ...

问题 句子成分分析

听力里面的句子：And how strong is the evidence that climate change is happening that it's really something we need to be worried about?请问happening后面的that引导的是什么从句？

问题 选择关系

请教老师们：I will give her six months to collect her belongings，and then I will throw them all away. 中前后句看着像选择关系，为什么不用or呢？ 先谢谢老师们了！

问题 代词的问题（which, it, what, that引导定语从句）

Experts are concerning the Internet and the troubles _______ has caused to students.A. which      B.it      C. what      D that 答案给的是b， 怎么理解呢？为什么a 理解成定语从句不成呢？谢谢

问题 Lesson One, page one等的大小写问题

...表示“第几课”时好像通常是大写的，如 Lesson One, Lesson Two, Lesson Three 等，当然如果用数字，则只是 Lesson 用大写，如 Lesson 1, Lesson 2, Lesson 3 等。疑问：这样用时可以用小写的 lesson 吗？比如 lesson one, lesson 1 等。▲表示“第几页...