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问题 关于all做主语时谓语动词用单数还是复数的问题

All we had left were the clothes on our backs.all作主语时指人谓语动词用复数，指物谓语动词用单数，教材上这句话all应该是指物吧，为什么用were不用was呢？

问题 check后的“是否”用that还是if/whether

...如何时，check后是要接that引导的宾语从句，还是接if, whether引导的宾语从句？如下面这个句子：We had better check that all the doors are locked. 我们最好检查一下所有的门是否都锁上了。这个句子中的 that 可改为 if 或 whether 吗？

问题 There has been very little rain现在完成时用法

-What is the weather like here this summer？-There has been very little rain.回答为什么用现在完成时？这是哪个用法呢？

问题 must have been与was的区别

It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.1)不用must have been, 改成was， 则2句理解上有何不同呢？2）这是定语从句，句中第一个that能理解，后面but that如何分析成分呢...

问题 复杂句中并列结构的判断与分析

Those punished for their comments on social media include 16-year-old Amos Yee, who was jailed after publishing a video criticising the late Lee Kuan Yew that was deemed to have been obscene and insulting to religious feelings.这句话中 to have been obscene 和 insulting ... 是并列的么？共...

问题 请问如何理解句中的两个being

What makes being a founder stressful is being on an emotional roller-coaster all the time. 请问如何理解句中的两个 being？What makes being a founder stressful 是什么意思？

问题 say to do sth的用法分析

The label says to take one dose three times a day. 标签上写着每次一剂，每日三次。这个句子中的不定式 to take one dose three tiems a day 用得有点奇怪！它直接跟在动词 say 的后面，它是宾语吗？动词 say 可以直接跟不定式作宾语？请专家老师...

问题 请教句子结构（and并列成分的判断以及分析）

First, there may be a brief cessation or reduction of breathing when falling asleep as the sleeper waxes and wanes between sleep and wakefulness and their differing control mechanisms. “and their differing control mechanisms” and 前面并列的内容是什么？这部分在句子中做什...

问题 介词of后可以接that从句吗？

...，不过我刚看到一个句子是这样的We finally got a glimpse of the electric car start-up Atieva is building to rival Tesla. 感觉of后面是个that从句，但好像没有这种用法！ 还是说start-up Atieva后面是一个省略了which的定语从句？希望老师可以解惑！谢...

问题 no more difficult=not more difficult吗

在资料上看到这样一句：Selling goods abroad is no more difficult (=not more difficult) than selling to the home market. 做外销并不比做内销难。能说 no more difficult=not more difficult吗? 这样一来那不是 no = not 了？

问题 them leaving如何理解

以下摘自考研英语文章：Although a correlation between them leaving and subsequent bad performance at the firm is suggestive, it does not mean that such directors are always jumping off a sinking ship.【参考译文】尽管外部董事离任与其公司随后的糟糕表现之间的关联...

问题 电影《遗传厄运》里面有句台词的理解(not that)

安妮谈到母亲时候说到：When she got sick，not that she was really even my mom at the end.当她病的时候，我甚至感觉她不再像是我的妈妈。not that是什么意思？这是什么句子？

问题 有关形容词+to do不定式结构的疑问

My dream is hard to come true.  这个句子正确吗？请附以相关例证。因为想起平时常见到在这种结构的不定式与句子主语有动宾关系，如The question is easy to answer.谢谢专家老师。 

问题 mind doing sth 与 mind having done sth

He didn't mind getting the job.其中的 mind doing sth 可以像 regret, remember, forget 一样换成 mind having done sth吗？（在肯定句和疑问句中）

问题 two lots of中lots of的用法

So, ask businesses on both sides of the Atlantic, why have two lots of tests where one would do?请教：1. 句中lots of 是two的加强修饰？2. where one would do？中would是使语气委婉的用法么?谢谢!