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问题 倒装句学习

Only over the past 30 years have scholars examined history from the bottom up.请问老师。这句是完全倒装句吗？怎么理解倒装句？

问题 语序问题

老外发来一句I can investigate in our lab the level of cross-reactivity，总感觉好别扭，是不是应该; I can investigate the level of cross-reactivity in our lab。哪个对

问题 along可以吗？

A poor man found the purse near a shop ________ the way home.这里答案是on.老师，along可以吗？

问题 句子成分分析

proved做定语吗？即是否能这么改写：“the hydrogen itself was proved too expensive.” or "the hydrogen is too expensive which was proved."

问题 way用法

There is something badly wrong with the way standards for school science being set in the US这里的way后面为什么直接跟了standards名词？是错误语句吗？

问题 句法问题

In one sense ， I was the archetype  of the ghetto child who through hard work and initiative was pulling himself toward a better life.想请问一下 第二个was是什么意思？ 是多余的吗

问题 what的作用

语法填空，主要是原因，句子分析以及what的作用:You can't imagine what difficulty the freshmen had ____ (consult) the French dictionary.

问题 now可以作主语吗

Now is the time to sound the alarm.now可以作主语吗?

问题 问将来天气的说法

问明天天气，经常见到的是：What will the weather be like?是否可以说：How will the weather be? 

问题 主谓一致疑问

The glass were kept hot enough.主语the glass，查了一下字典，glass是不可数名词。谓语为什么用were.记得之前学的是主语不可数名词，谓语要用单数，才能主谓一致?

问题 这里为啥不能用opened

He left the door open.为啥不是He left the door opened.

问题 both的指代问题（both books是指两本书一共还是两本书分别）

问两个简单的问题：1. Both books cost me twenty dollars.    是指买两本书一共花费了20元，还是两本书各花了20元？2. The Yangtze River is China's longest river.      也可以说The Yangtze River is the longest river of China吗？

问题 take care to do sth中的不定式是什么成分

Take care to be very careful. 注意要非常小心。Take care to avoid kinking the wire. 当心别让电线扭结。Take care to label all the disks with the correct file names.  在所有磁盘上小心贴好标有正确文件名的标签。请问其中的不定式是什么成分？

问题 until状语从句是修饰动名词短语keeping吗？

But whatever the true explanation of Barrymore's movements might be, I felt that the responsibility of keeping them to myself until I could explain them was more than I could bear. 请教老师: 宾语从句中，the responsibility of keeping them to myself until I could explain them 整个...

问题 of的一个特殊用法

...up on a farm in a family of 10 children. Her dad worked at a job away from the farm, and her mother ran the farm with the kids. After high school, Jennifer attended a local technical college, working to pay her tuition (学费), because there was no extra money set aside for a college education. Aft...