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问题 They kept these animals in a laboratory for a year, to acclimatise them, and then challenged them with various tasks which, if performed successfully, would yield a reward of food. 

经济学人里的某一句，tasks后面的which是做什么成分？这里没看懂，希望有强者答疑一下，谢谢

问题 in ways that 可以改写为 in the ways that 吗

Physical exercise is an indispensable factor in ways that are displayed below.体育锻炼是一个不可或缺的因素，理由如下。为什么这里的 in ways that 没有加定冠词 the ？明明后面所属的 ways（理由）都是特指的理由啊？

问题 如何找出句子主干

At this Snowball sprang to his feet, and shouting down the sheep, who had begun bleating again, broke into a passionate appeal in favour of the windmill.句子来源《动物农庄》第5章看不懂里面的语法结构。

问题 短语中的since the 1930s做什么句子成分？

A center of heavy industry in China since the 1930s划线部分是什么句子成分？是定语吗，还是状语，还是无动词分句？谢谢老师回答。

问题 hardly see to write 的理解

“Children, I can' t sing, ” she always said, and mother used always to lay her knitting softly down, and the kitten stopped playing with the yarn on the floor, and the clock ticked lower in the corner, and the fire died down to a glow, like an old heart that is neither chilled nor dead, and gran...

问题 Which 后面接单数名词与复数名词比较

It's a theory to which many economists subscribe, but in practice it often leaves railroads in the position of determining which companies will flourish and which will fail.若将companies改为单数，意思会有很大的变化吗？

问题 from the east与in the east

有人说“太阳从东方升起，从西方落下”翻译成英语应是：The sun rises in the east and sets in the west. 不能是：The sun rises from the east and sets from the west.请问，这里为什么不用 from the east 而用 in the east 呢？谢谢解答！

问题 What I say单独的用法

 "What I say," said Trevor. "the old man you saw today in the studio was Baron Hausberg. He is a great friend of mine, buys all my pictures and that sort of thing, and gave me a commission a month ago to paint him as a beggar. What I say（名词性句子，意思是我所...

问题 这句话中cosmetic standards如何理解

...ally in US, about 16% of that is at farm. So that's food that doesn't pass the cosmetic standards, and then the other 84% is food waste that's going to landfill.请教这句话中cosmetic standards应该不是理解为化妆品标准吧？为什么会在这里使用呢？

问题 happens时态的选择

...et's see what happens next week.▲ b. • What happens if nobody comes to the party? • Just plug it in and see what happens.而这些是用一般现在时表示将来吗？（happen ▲ a. [V] to take place, especially without being planned. ▲ b [V] to take place as the result of sth）

问题 句子分析

While demanding lip service to an impractical ideal, the amateur system has left American athlets to fend themselves in a degrading world of under-the-table payoffs and over-the-table handouts.这句话的参考译文是：美国业余运动员体制要求建立一个理想模式，不想却让运...

问题 as being...作什么成分

Bruce opposed the production of the computer as being simply another expedient design without the function he desired in a new type.本句中的as being应该如何理解？是作原因状语吗？或者是宾语补足语？希望老师解答，谢谢！

问题 非谓语疑惑

2.It is said that Beijing University was the first institute of higher learning ________(establish) in China.请问这道题, 前面有the first, 后面为什么不用to have been established 呢?    如Jerry is the only/last person to save me from danger. 就像这句话中,要...

问题 是否是宾语从句的判断

So I told her that the source of the Mekong is in Qinghai Province.her不是told的宾语吗？为什么后面还要跟一个that引导的宾语从句？

问题 定语从句修饰哪个先行词

请问老师：下面句子中的 that定语从句是修饰 the gardens 还是 painting，分不清They also study the gardens shown in painting that decorated many houses of Pompeii.