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问题 描述普遍真理的间接引语用什么时态

我找到两种说法，一是时态不变,例句：Scientists discovered that DNA holds the code for life.一是时态可变可不变，例句Copernicus proved that the earth goes/went round the sun.请问如何理解这两个句子？

文章 英语基础语法快速入门——名词性从句

...ng is when I’m busiest. 早上是我最忙的时候。That’s where you are wrong. 这就是你不对的地方。That’s why he didn’t come. 这就是他没有来的缘故。另外，表语从句还可以用as if, as though, because等来引导。如：It is because he is too foolish. 那是...

问题 without 后可接动词原形吗？

有这样一句翻译练习：The soldier absented himself without leave for three weeks.我觉得句子本身有问题，without是介词，后面应该接动名词吧，但为什么接的是动词原形呢？

问题 king前面的冠词问题

The people made him ______ king, and he did a lot of good things for them.A. a                B. the答案是 B，我不是很理解 A 错在哪里，请老师指点一下。谢谢您。

问题 这个句子为什么用a White作主语

Mary, a White is waiting for you at the school gate.为什么用 a White 来作主语？

问题 run out 的用法

With no rain for three months and food supplies _____ ,the situation here is getting desperate .A.run out B.has run out C.be runing out D.runing out 答案为d请问a 为何不行分析一下food supplies 与run out 之间的主被动关系，动作先后

问题 had never.... before...理解

 He had never gambled before the casino sent him a coupon for $20 worth of gambling 这句话是什么意思？had never.... before...这个结构是什么意思了？

问题 that做主语可以指代状语吗

...llenging the authority of judges once again across the world, that is food for thought.请问：上面句子的成分分析。逗号前面是“with+宾语+现在分词”作状语；逗号后面的that作主语，is作谓语？that指代的状语的意思（或成分）吗？

问题 中英翻译汉语影响时态

...。是不是应该用现在完成时态呢？This region has have pandas for above 500 or 600 years. 如果用过去时态，表示过去有过，现在没有，无法体现“就有了”的含义。谢谢老师。

问题 长句分析

Effectively, these layers of words formed a watermark, for they were just an impression against the wall, a pale hint of green or sometimes purple the only sign that once they might have been raised letters. 1、 a pale hint of green or sometimes purple 是不是对 impression 的补...

问题 牛津词典动词标注的问题

请问牛津词典中VN-N和VNN有什么区别？以make为例：[VN-N]I made painting the house my project for the summer.[VNN]She made us all coffee.这两个句子都是主谓双宾结构吗？还是说VN-N是主为宾宾补结构(第二个N为名词作宾补)、VNN是主谓双宾？

问题 用英语说数学老师可以省略所有格吗？

The conference was organized for all of the _ in the city.A.mathematic teachersB.mathematics‘s teachersC.mathematics’ teachersD.mathematics teachers

问题 关于虚拟语气

请问老师，在这句话中We kissed and hugged real tight as if we did for the first time. It wasn't the first time though. 这里因为后面一句话很明显是as if引导的虚拟语气，也就是did这里是虚拟的形式。但如果不考虑语境，只看语法，did也可以理解为...

问题 a week和every week区别

He eats bread every day for a week.他这一周的每一天都吃面包。在句子意思不变的情况下可不可以换成every week?  a week和every week有区别吗？

问题 考研英语长难句分析

Real disposable income probably rose as its fastest rate for two decades in 2020, a measure of the huge stimulus pumped into the economy by the federal government.请问这个长难句如何分析？是什么类型的复合句？该如何分析？