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问题 behavior 和 behavioral 的区别

The behavioral sciences has been slow to change partly because the explanatory items often seem to be directly observed.既然名词修饰名词作定语，表示分类、类别、用途等，这里的 behavioral 可以改为 behavior 吗？即 behavior sciences 表示行为一类的科学。

问题 where引导定语从句还是地点状语从句

They could depend on the food sources where they lived.请问老师：where引导的从句是定语从句修饰the food sources，还是地点状语从句修饰depend on？求指教!

问题 Be careful when doing sth中的when doing相当于什么

...en doing sth= Be careful when you do sth.比如：Be careful when crossing the road. 过马路时要小心。是相当于：Be careful when you cross the road. 过马路时要小心。或相当于：Be careful when you are crossing the road. 过马路时要小心。

问题 it takes sb to do sth 是什么结构和含义呢?

...dent Woodrow Wilson had a stroke and his second wife Edith essentially ran the country for 18 months.By that point, the 25th Amendment was long overduebut it took the Kennedy assassination to get it written.And it didn't get used by a president for another two decades when President Reagan had a 198...

问题 broken up的含义

The graceful wooden windmills that have broken up the flat Dutch landscape for centuries. 译文：风车在荷兰平原上优雅地矗立了几个世纪。 句中broken up查字典，怎么也对不上译文，请专家指教，谢谢！

问题 表示人体发烧到多少度用什么介词

用适当的介词填空：The doctor said that the patient was _____ 42 ℃ and was still in danger.请问填什么介词？

问题 方式副词用于祈使句句首

...使句，它把方式副词放在了句首，也可以吗？Slowly depress the accelerator / brake pedal. 慢慢踩下油门／刹车踏板。我总感觉应该是：Depress the accelerator / brake pedal slowly. 慢慢踩下油门／刹车踏板。

问题 Who作主语时谓语用单数还是复数

Who ______ seen the accident besides the boy?填 have 还是 has? 即：Who 作主语时谓语用单数还是复数？

问题 定语与状语的区别

老师好：请教一下。1）The radio only weighs a few ounces and is smaller than a cigarette packet...2）They talked on the phone for more than an hour.在这两句话中，than a cigarette packet...是不是充当句子的比较状语？than an hour是不是充当more的定语？

问题 断句的分析

What is clear is the association between good sleep and psychological well-being in older adults. A 2010 study documented that association when it came to sleep quality, but sleep quantity didn't show the same effects.这里A 2010 study documented that association when it came to sleep quality...

问题 关于having been done和done

The agreement________(sign), they shook hands for the photographer.答案是signed,用having been signed可以么？

问题 being 还是 were being

This might explain why,after the financial crisis,women managed to adapt to the decline in middle-skill jobs better than men did,despite women being hit hardest.being前面不用加 were 吗？为什么？

问题 absent among与absent from

British makes were noticeably absent among the cars in the car park.请问这个句子如何翻译？为什么用 absent among? 不是要用 absent from 吗？

问题 状语从句主从句主语一致

While on a hiking trip, our cooks prepare delicious meals.While listening to the radio, she fell asleep.If asked to answer the question, please speak louder.老师说状语从句主从句主语一致从句省略主谓，这三个句子都是吗？可是第三个句子主语是什么呢

问题 assembled/assembling 使用含义辨析？

The students were seen assembled in the hall.请教老师，为什么使用assembled, 而不是assemling呢？上句使用assembled,是否包含2层意思：1）被动-被老师命令使学生集合？2）动作完成？如果使用assembling, 是否意味着学生自己主动去集合，而且正...