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问题 请教语法问题（涉及独立主格、同位语、状语从句等）

After the arrival of hunter-gatherers in the southwestern region of North America, several alternative types of agriculture emerged, all involving different solutions to the Southwest’s fundamental problem: how to obtain enough water to grow crops in an environment in which rainfall is so low and ...

问题 如何判断这句话中的状语到底在修饰句子的哪一部分

There were still forests closely surrounding Bangkok into the last half of the nineteenth century, and even at century's end there were wild elephants and tigers roaming the countryside only twenty or thirty miles away.请教一下各位老师，如何判断这句话中的“only twenty or thirty mi...

问题 对to be 不理解

you have to be sure主 谓 宾(非谓语 表) It is just not safe for me to be here形主 系 表 方式状语 主(非谓语 表) 老师，我能理解非谓语在句子中做什么成分，但是什么时候用to be我好困惑

问题 这里的being contested, 如何理解其“时间”？ 是动名词，还是应该理解成现在分词？

... as Crucial for Biden Presidency》That raises the prospect of the results being contested well beyond election day Tuesday.这增加了选举结果可能在周二选举日之后较长时间内存在争议的可能性。请教老师：主要是being contested 用法，含义理解问题。1）这里...

问题 It may be that…句式的理解与用法

看到有这样的两个句子：It may be that he will marry his teacher. It may be that she’ll be late for the train. 请问，如何理解It may be that…句式？它的用法是什么？

问题 并列句中的承前省略为什么不省略介词

...并列连词后面一句中的相同词语或结构。比如：To know is one thing; to teach (is) another. 知道是一回事；教又是另一回事。He studies math, but his brother (studies) dancing. 他学习数学，他的兄弟学习舞蹈。She is a nervous woman and always has been (a nerv...

问题 to be adj. 也算是一种不定式吗

I think him to be nice.语法书上说这句话是 think 作为不完全及物动词时需要接宾语，后面接宾语 him，后面的不定式 to be nice 是宾补，我只知道 to do 是不定式，to be nice 这种怎么也是不定式呢？是不是因为 be 是系动词，加上表语 nice ...

问题 as...as可以比较同一范畴的对立面吗

They are an odd couple .She is as tall _____he is short, and he is as fat _____she is thin. But they are both ______happy as they are old. A. as, as, so B. while, while, as C. and, and, as D. as, as, as

问题 be competent to do/at

These younger volunteers would be familiar with and competent using technologies such as activity trackers.问：我觉的这个句子是不是错的？be familiar with和 be competent to 是并列的两个短语而此处competent后没有介词 to，有be competent at doing sth: 在某事/方面有...

问题 being后接形容词、过去分词以及用于with复合结构的宾补前时的省略原则

老师们，您好！关于being+V-ed，being+adj，with+宾语+being+宾补等结构作时间，原因，伴随等状语时，尤其是表“原因”时，being何时必须有？何时有无均可（即可省略）？何时必须去掉？补充说明：（1）在以上提到的Being+V-ed中，V-ed...

问题 a,an,the的使用与句子时态有关吗

1. Miss Chan is talking to _____ children.2. My sister is reading _____ book.3. Mom is cooking _____ fish now.请问：上面三题的横线上应该填a、an、the还是不用填呢？与前面的现在进行时有关吗？

问题 Much though 引导让步状语从句

老师您好！Much though people now blame deregulation, flawed regulation was more of a problem. 来自：ECONOMIST: Shifting the balance通常语法书说引导让步状语从句是Much as, 不可以用Much though, 但是上句却使用了Much though,又如：Much though he would like to, Mr Kohl...

问题 关于more修饰动词时的位置问题

...If they had ever cared more about the child, he wouldn’t let them down now.（错综时间条件句的虚拟语气）已知 more 做副词修饰单个动词时，一般位于动词之后，如：I love you more than anyone in the world.但本句中的谓语动词为 “had cared”，这个时候...

问题 which, that, 限定性，非限定性定语从句

Original text from NCE3-54:I immediately embarked on an experiment which, even though it failed to get rid of the ants, kept me fascinated for twenty-four hours. Question:如果这是限定性的定语从句，表达重要信息。所以，这句话，如果是我写的话，应该把 which，换...

问题 be fundamental to do sth与be fundamental to doing s

Having a balanced diet is fundamental to ______ (keep) healthy.填什么？是填动词原形 keep 还是填动名词 keeping？