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问题 upon的用法

...series of industrial experiments at a large telephone-parts factory called the Hawthorne Plant near Chicago. It hoped they would learn how stop-floor lighting affected  workers' productivity.Instead, the studies ended  giving their name to the "Hawthorne effect", the ext...

问题 a letter of apology（为什么apology没有修饰语）

Burchill said in a recent letter of apology to the 4-star hotel. (2021全国卷Ⅱ完形)上面一句摘自2021年高考英语全国卷Ⅱ（甲卷）完形填空。请问，这里的 apology 为什么既没有修饰语也没用复数? 

问题 下面这句话里的to be remembered forever是不定式做目的状语吗？它的逻辑主语是哪

New matchbook-size cameras that clip to your tie or shirt let you capture a day's worth of encounters, then upload them to the Internet to be remembered forever.

问题 不定式所作成分分析

The pendulum has swung from learner centered progressive education to an emphasis on structured intellectual discipline to calls for radical reform in the direction of openness to the recently rally to go back to basics.老师好，请问最后to go back to basics作什么成分？如果是定语，...

问题 doing和to do作状语的区别

Restaurants can offer a choice of music along with the various food choices on the menu, allowing customers more control over the atmosphere in which they are dining. 这里为什么不能用to allow呢？

问题 关于定语从句和状语从句的语法填空

This kind of solar cooker can be used only in the daytime _______ the sun is shining.A when    B as     C while    D since为什么选 A? 而不选其他的？为什么 B，C 错了呢？把 the sun is shining 当做时间状语不行吗？选 C 把 ...

问题 down是介词还是副词的语法分析

1. We heard a ground squirrel whistle down over the bluff.2. Gramma's got stacks of puzzles down in the basement.(1) down在两个句子中的词性、意思以及作用？(2) 如果down在这两个句子中是副词，那么它修饰了哪些成分？(3) down是否可以作后置修饰语修饰名...

问题 It reminds us of the greatness of America 中的介词短语做什么成分

It reminds us of the greatness of America.介词短语of the greatness of America做什么成分啊？是作直接宾语吗？谢谢老师解答！

问题 For the Japanese festival Obon…为什么用介词for

不明白下面句子中的 For the Japanese festival Obon 为什么要用介词 for，而不是用其他介词（比如 At, On 等）：For the Japanese festival Obon, people should go to clean graves and light incense in memory of their ancestors. 在日本盂兰盆节，人们要扫墓、烧香...

问题 打在某人某部位用介词on,to还是in

He socked her in the face.Martin received a blow on the nose.He gave her a blow to the head.He punched Jack in/on the face.都是朗文上的例句，也都表示打在某人某部位，为何有的用in有的用on有的用to？请问这里有啥门道？

问题 句子分析：Someone must warn him of the difficulties.

Someone must warn him of the difficulties.是主谓宾还是主谓宾宾补呢？如何理解of the difficulties是什么成分呢？Salmon farmers are warning of the severe crisis facing the industry.是不是主谓结构呢？ 

问题 时间段状语用in还是for引导

The audience did not hesitate to applaud loudly as the famous composer walked out onto the stage for the first time in 12 years.这是2020版高中英语北师大版必修第三册第7单元(p15)的句子。请问这里为什么用in引导时间段状语，不是应该用for来引出时间段状语...

问题 朗文词典上be/lie at the root of sth理解中at为什么没有

朗文词典说 be/lie at the root of sth (=be the cause of something)是某事物的根本原因,例句：1)Allergies are at the root of a lot of health problems. 过敏是许多健康问题的根源。2)The love of money is the root of all evil . 贪财是万恶之源。为什么句1）are at the ...

问题 such as 在此句中的用法

The commission argued that other agencies would protect against anti-competitive behavior, such as a broadband-providing conglomerate like AT&T favoring its own video-streaming service at the expense of Netflix and Apple TV. 我可以理解 such as 之后接名词例如 I know four languages, su...

问题 a student in/of Class 4(介词的选用)

He is a student in/of Class 4.是用 in 还是 of，它们的区别是什么？谢谢!