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问题 lay的过去式和定从句引导词

...都没有停止他的忏悔。译文：He didn't cease his penitence until the day that he laid in the cemetery.问：该句是不是laid应改成lay,laid是lay“放置、产卵”的过去式和过去分词，再that 是不是该改为when作定语从句 he laid in the cemetery的时间状语？

问题 这里使用介词by和in, 含义的理解究竟有什么不同

By the 1950s, a movement in the United States to combat discrimination was growing:the civil rights movement.这里用了介词by, 和如果使用介词in, 含义的理解究竟有什么不同？

问题 几个经济学人文章的问题（请曹老师解答)

...ed three years ago to much fanfare about being a transformative moment for the health-care industry, Amazon,JPMorgan Chase and Berkshire Hathaway quietly shelved Haven, a joint venture they set up to lower staff health-care costs. 这里很明显announced部分的主语不是Amazon, Jpmorgan等公...

问题 如何简单明白地理解：定冠词和不定冠词

...什么用法中，它们的根源含义是泛指和特指，也就是说和the连用是特指的含义，和a连用是泛指的含义。在说明白点就是定冠词the各种用法中均有特指含义，不定冠词a在各种用法均有泛指的含义。（a和the的固定搭配除外）可以这...

问题 时态问题

1) I didn't think I'd like the movie, but actually it is (was) pretty good.这里用is还是was, 前面部分是过去时态，如果用现在时态is表达这个电影本身很好的事实是否可以？2) I came (was coming) to visit you later that day, but I had to phone and cancel.had to pho...

问题 非限制性定语从句还是地点状语从句

...？先行词是homes，还是systems？谢谢Travelling around Thailand in the 1990s, William Janssen was impressed with the basic rooftop solar heating systems that were on many homes, where energy from the sun was absorbed by a plate and then used to heat water for domestic use. 

问题 play that + 一个句子: 这是什么结构和用法

...on a tripod, playing that it was a camera, and halted all passers andaimed the thing and said "Ready! now look pleasant, please," but not even this capital joke could surprise the dreary faces into anysoftening.有2点疑问：1）playing that it was a camera - 拿着这个当照相机玩...

问题 这个句子中的using which是什么用法？十分不解

The specimen is loaded by a SHPB system,using which static tensile load is appiled to the specimen and maintained before applying the dynamic load.大概意思是：试样被SHPB系统加载，直到在施加动态荷载前，静态荷载首先被施加在试样上并一直维持此状态。

问题 请教关于with的用法

1. Even though the road was littered with boulders and pitted with holes, Bruce was not in the least perturbed.2.There was a strong wind，and the two men's faces were white with snow．请问这里的三个with 意义是  “伴随”  还是  ”因为 由于"   ...

问题 like用作介词时，后面可以加状语从句吗

具体语境为：Like when you lay your baby on their back and you pull them by the arms gently into a seated position, the baby’s head may nod back behind the shoulders, like poor head control.请问句中的第一个like后面可以加状语从句吗？另外，第二个like前面的逗号是...

问题 but后接祈使句的问题

The size ranges for these separates are not purely arbitrary, but reflect major changes in how the particles behaveand in the physical properties they impart to soils.麻烦老师帮忙做个句子成分分析，尤其是but后面接的是祈使句吗？还有properties...

问题 about what中what引导的部分做什么成分

Throughout the week, the participants were peppered with text message questions about what temptations, desires, and effortful self-control they were engaging in at the moment, and whether they felt drained.请问 粗体字what..做什么成分？是名词性从句做定语吗？

问题 反身代词作同位语的用法（涉及have使役动词判断与反身代词作同位语的位置）

...ish and snails have themselves experienced a decline in population because of overfishing by humans.请问老师：句中的 themselves 是 These fish and snails 的同位语还是使役动词 have 的宾语，如果 have 是使役动词，那e xperienced 是过去分词作宾补，这里的被动...

问题 very much可以修饰比较级吗

much可以修饰比较级。如：The building is much taller than its neighbours. 这座大楼比其毗邻的建筑高出许多。I personally think that the second one is much better. 我个人认为，第二个要好得多。The new method means that taxpayers get refunds much faster. 这种新...

问题 过去分词与现在分词做定语知识迷糊

The insect spraying over the weekend left morethan 2 million bees dead on the spot in Dorchester County，South Carolina, 周末喷洒的昆虫使得南卡罗来纳州多尔切斯特县的蜜蜂死亡超过200万只蜜蜂. ①喷洒的昆虫。喷洒为什么不用过去分词作定语翻译为被...