问题 an average of和the average of的用法与区别

An average of just 15 cm of rainfall last year has made it the driest year since 1850.各位老师好，请问：1.这个句子中为什么用an average of，而不用the average of呢？2.请问an average of和the average of用法有什么区别呢？ 3.我查找的时候发现有人说an av...

问题 not 放在动词前和动词后的区别

1. I don't choose to work at the office.2. I choose not to work at the office.老师 哪个句子是对的？为什么？

问题 gain control of和as后面接in the case of的疑问

以下来自一段托福备考听力材料的原文：By supplanting the alpha individual, they could gain control of the whole group or of individuals as in the case of dogs.问题一：为什么是 gain control 是与 of 搭配呢？问题二：in the case of 好像不是“就……来说”意...

问题 the part of和part of，一道专八改错题

Steve Lafleur revives the debate and argues that low fares are the part of the reason transit lines are struggling.  请问：①reason后面是否省略了关系副词why呢？这是定语从句省...

问题 on the north shore of the lake中的on如何理解

On the north shore of the lake are the Five-Dragon Pavillions.老师，这里的on应该理解成在位置上和the lake临近呢？还是on the shore这个固定搭配呢？

话题 on the day of the picnic

话题 make the catch of the year

问题 much表示“经常”与often的区别

much也可以表示“经常”，如：He doesn’t get out much. 他不常外出。We don’t go to the theatre much any more. 我们不再经常去看戏了。I just haven’t time to go out much. 我只不过是没有时间经常外出而已。请问这样用的 much 有区别吗？谢谢！

问题 the house the roof of which中间为什么没有连接词

Nobody wants the house the roof of which has fallen in.为什么the house the roof,这名词中间不用连接词吗？

问题 as在从句中的作用和成分

求刘老师一定要给我解答这个问题，感谢！I like the same book as you do. I shall do it in the same way as you do.这两句分别是什么从句？as分别在从句中做什么成分？

问题 the same as 理解

Now, unlike the harpsichord, which came before it, the piano is a percussion instrument.MALE PROFESSOR: You see, the harpsichord is actually classified as a string instrument, since pressing a key of a harpsichord causes a tiny quill that’s connected to the key to pluck the strings that are i...

问题 an expert of the team对吗

请问曹老师，He is an expert of the research team.这句话中的of可以吗？答案给的是on the research team,但我觉得of the team是不是也可以，因为有He is a member of the team.这样的句子，member和expert我感觉都是队员身份的描述。麻烦老师点拨，谢谢!

问题 it作形式宾语指代-ing分句

在夸克大全 18.35 Extraposition of a clausal object中写道：When the object is an -ing clause in SVOC and SVOA clause types, it can undergo extraposition; when it is a to-infinitive clause or a that-clause, it must do so:You must find it exciting working here. [1]You must find working here ex...

问题 in seeing...和 to see...辨析

Many thanks for your kindness in seeing me off at the airport.这是书上原句。我想可否说成：Many thanks for your kindness to see me off at the airport.如果可以，这2句含义理解上究竟有什么区别？

问题 现在完成时的疑问

...段，我这么想对吗？2.He has been telling me this matter for three months.这句话我把tell分析为非持续性非终结动词对吗？3.The refugees have come to this country since the conflict began.这句话我理解，因为主语是复数，所以可以用现在完成时+持续性时...