我知道，poem是可数名词，意思是“（一首）诗”；poetry是不可数名词，指“诗”的总称。如：It’s a quotation from a poem by Keats. 这句话出自济慈的一首诗。（可数，指一首诗）I have now developed an appr...
mankind 的意思是“人类”，词典上说它不可数，不用复数形式，也不连用冠词。但它用作主语时，谓语动词该用单数还是复数呢？我看到过这样一个句子：Mankind are intelligent animals. 人是理智的动物。 这个...
在不少书看到，当police 表总称时，其前必须要有定冠词。但事实上我经常见到它前面不用冠词的情况啊。比如下面这道题，它是一道2006年山东卷高考英语试题：Police are now searching for a woman who is reported to...
otherwise 有时引导虚拟语气，有时不引导虚拟语气，请问这有什么规律？如：We must be back before midnight; otherwise we’ll be locked out. 我们必须在午夜之前赶回去，否则我们就会被锁在门外。（没有...
有时不定式作宾补时，可以省略动词，而只保留不定式符号to。如：At last he did what she asked him to. 最后他按她的请求做了。I’ll see the film if you want me to. 如你要我看这部电话的话，...
If only few people use a word,a dictionary will either tell you this or not list it.我想请教，这里的only few使用得对吗？我觉得only a few才是对的，因为few本来已经表示很少量了，再用only修饰会不...
ashamed与shameful有何区别。比如下面一句，该填ashamed还是shameful?Cynthia is not __________ of what she does, even if she ends up doing something wrong.如题
“复数主语+each”后的谓语用单数还是复数，比如：They each (want, wants) to go.The boys each (have, has) seen the film.如何选？如题
有这样一个句子All the money that he had had had had no effect on his happiness.请问如何理解句中的四个had had had had啊！如题
One could never pay too high a price for any sensation.这句话应该不是这个意思吧：人不可能为任何感觉付太高的代价。应该是：人为任何感觉付很高的代价都不为过。这样一句话同时用never和too的句子表...
书上说，由as(虽然)引导让步状语从句，习惯上只能用倒装形式，而且倒装后用于句首的名词习惯上不能连用冠词。如：Boy as he is, he likes to play with girls. 他虽是个男孩，但却喜欢与女孩子玩。Teacher...
这个句子是用逗号隔开的，可是我觉得是两个主语，是不是该用句号或者分号隔开呢？烦请解答，谢谢。Our class is like a big family, we get on well with each other.如题
I regard him as a lazy man.是我怎么看待他表示的方式还是做宾语补语？如题
大部分书上在谈到deep和deeply的区别时都说，修饰介词短语时只能用deep不能用deeply。但是我在网上看到了这样一个句子，它在介词短语前就是用了deeply：He was already deeply in debt through gambling losses....
我知道，because 可用于引导原因状语从句，如：My stomach hurts because I have eaten too many apples. 我肚子痛，因为苹果吃得太多。He’s angry because my marks are the same as his. 他很生...
even和even though均可引导状语从句，表示让步，它们有何区别吗？还有，它们与even if有哪些区别？比如下面三句的区别在哪里？They’ll stand by you even you don’t succeed. They’ll stand by you even th...