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问题 mankind是单数还是复数

Mankind ______ (be) intelligent animals.请问应填单数 is 还是填复数 are？谢谢！

问题 句子分析

To be responsible for something means to have the job of getting it done or taken care of . of.....是介词短语做the job宾语补足语吗？ done和taken care of是it的宾语补足语吗？

问题 句法分析

it can be predicted,however,that from time to time questions will arise which will require specific scientific answers.在这句话中，先行词questions和从句which will... 被谓语词组will arise 分割，请问这种语法现象正常吗？

问题 伴随状语

Most Chinese parents except too much from their children, hoping they will stand out and be admitted into a famous university when they graduate.hoping及以后部分是做伴随状语吗？可否替换成hope或hoped？

问题 非谓语做状语

Though he is a child，he knows a lot.可以改为Thoug being a child,he knows a lot.吗，我感觉不可以，却说不出原因。谢谢

问题 a clear night与a bright moon中冠词的用法

it was ______ clear  night with ______ bright moon and shining stars in the sky.A. a; the B.the; a C. a; a D. the;the答案为C，请解释一下。night 后有定语，不能理解为特制么？moon 不是独一无二的么？谢谢！

问题 过去时与现在完成时的区分

...acher.—He ________ as a volunteer in the UK for three years, which helps with his work a lot.A. served    B. has served    C. serves    D. had served老师，这题选A,但是看解析还是不能说服自己，我觉得B也可以，这个说的是过去的事情能...

问题 关于then的用法(如何判断它应该是指“后来”还是“接着、然后”)

...语境如下：Once Tom turned 10 years old, his grandfather presented Tom with a Nun chuck.Tom was then taught about how to use it.我的第一感觉就是这里应该是“接着、然后”的意思，而我的朋友告诉我这里应该是时间间隔更大的“后来”的意思。我发现就...

问题 add sth与add to sth的区别

... Using emojis can add humor and feeling, keeping intention clear. Messages with emojis feel more conversational, encouraging better and more frequent communication.以上段落摘自2020年全国卷2的七选五。请问句中的 add 为什么不用 add to 呢？另外，Using emojis can add humor a...

问题 被动语态用法的疑问

We will be hosting a meeting in South Africa, which is the forum for a China-Africa cooperation.

问题 flying的作用分析

Once your business becomes international ,flying constantly will be part of your life.老师，这个flying怎么解释呢？是动名词吗？

问题 英语句子类型问题

we are being seduced and coerced into thinking that it is good to commercialise our leisure time.请问这句话为什么不是定语从句修饰thinking呢?

问题 than的用法

We often use language for no other reason than simply to express our willingness to be sociable. 老师好！这里的than为什么加to do?

问题 副词修饰副词？

recycling is to be recommended both economically and environmentally.老师这里是both作副词修饰副词economically and environmentally吗，还是both和and作连词连接两个副词，那both和and连接的是什么状语呢？

问题 句子构成问题

老师您好，这句话 Some awards are not for rewarding people who have done something good. 中的be for doing sth.是系表结构吗，for dong sth.在句中做什么成分啊，谢谢解答！