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问题 down which的用法

Strict laws protect a park created at the heart of the mountain range, embracing many varied habitats, from alpine woods filled with snubnosed monkeys to the parallel gorges down which thunder the headwaters of three great rivers, the Yangzi, Mekong and Salween.我想问下这里down which thunder...

问题 lead to用cause还是bring来解释

Sunlight leads to freckles or other skin changes.请问这句里leads to可以替换为：A. causes B. brings   该选A还是B呢？谢谢解答！

问题 情态动词would用于虚拟语气与will的区别

在薄冰高级英语语法第十一章虚拟语气中讲到情态动词用于虚拟语气，例句 It might help a little if only you would keep clean. would 能否换成will?

问题 My...and...作主语时的主谓一致

My friend and classmate Paul ______ motorcycles in his spare time.A race   B races请问老师，这种and的主谓一致题型，有没有具体的办法判断是否是同一个主语？

问题 关于状语从句的省略

请问老师这道题 To the couple's great surprise, the house was   in a mess as if ____(break)into. 如果看成不是虚拟，那应该填it was broken，并省略成broken。那如果我看成是虚拟语气，答案就变成it had been broken，这个时候也可以省略成broken...

问题 想问老师句中often being 什么意思

At a swimming pool in Los Angeles, children who are taught to hold their breath under water before they can walk often begin learning to swim when two months old.

问题 it的指代判断

When we touch something, the machano-reporters feel the touch and through a network of nerves to send signals to the brain.This informs the brain of the location of the touch, the amount of force used,and the speed at which *it was used.这段话怎么判断it的指代对象是touch呢 或者it判...

问题 现在完成时与一般过去时

After that, Manny knew he had a green light to call me Ploopy whenever he wanted, and that's what he's been doing all day.老师好！请问这里怎么不用现在完成时呢？前半句话怎么不用现在完成时，而是用了一般过去时呢？

问题 talk about后面可以接动名词吗

talk about后面可以接动名词吗？比如：We will talk about preparing for travel and how to make reservations for a trip.请再举例说明一下。参见高中英语新教材人教版必修一p23。

问题 这种字母上面带点的是什么意思

这种字母上面带点的是什么意思？在手写英语的时候也需要把这两个点写出来吗？ 比如：résumé /ˈrezjuːmeɪ/ a brief résumé of events so far 到目前为止事件的概述

问题 为什么 NMET, TOEFL 用 test 不用 exam

NMET=National Matriculation English Test（高考）TOEFL=Test of English as a Foreign Language（托福）为什么这些考试用 test 不用 exam 呢？

问题 这句话中的or怎么理解？

About $13.2 billion of the estimated $68 billion has been raised through state and federal funds, plus a pledge of cap-and-trade proceeds, or funds paid by companies to offset carbon emissions.疑问：感觉这里用 and 才说得通啊!

问题 请教语法问题(涉及句子成分的分析)

However, when drought conditions returned, that gamble left them with a population double what the floodplain could support, and Mimbres society collapsed sddenly under the stress.这句话中 what the floodplain could support 是什么从句？under the stress 是什么状语？方式状语吗？

问题 这是插入语还是特殊的宾语从句呢？

这是插入语还是特殊的宾语从句呢？what do you think (  ) if we keep reading this?A.can we benefitB. we can benefit答案是B，请问do you think 是主句么？怎么放在后面了 ，这种情况书面语常见么？谢谢老师。

问题 yet to do sth 中的yet是什么用法

A date for the meeting has yet to be determined. 这里的yet是什么意思？什么用法？