找到约 25000 条结果

问题 have always been (done/doing) 区别?

1这2个结构,用在现在时态时，always还有什么作用，可以去掉吗？2have always been doing 和 have always been done意思一样吗，是否可以互换？比如这个例句：She's  always been willing to lend him  a hand whenever he's in difficulty.

问题 将来完成时用shall和will有什么不同？

By six o'clock we shall have got everything ready.1。shall have got 比用 will have got有什么不同吗？2。另外还想问一下got在这里是什么意思？为什么ready前不需要to be, 难道got作系动词？

问题 例句中为什么使用进行时

...t giving much milke these days.2. The crews of two boats are getting ready to sail off the harbour.请问这2个例句中的进行时是什么作用，第一句已经交代了these days，为什么还有进行时？ 而第二句“变得”这个词怎么也可以进行？

问题 请问when引导的是定语从句还是时间状语从句？

It evolved out of Renaissance architecture in Italy,when the Renaissance architects bagan to get bored of symmetry and same old forms they had been using for the past 200 years.

问题 against 和 on/upon 这里可互换吗

He sat down beside Christina, propping his feet up on the railing, feeling the warmth of the sun against his face, able to relax for the first time in days.句中，against可否换成on/upon, 二者使用在本句中，含义究竟有何差别？

问题 ​用现在完成时和过去时都可以吗

—When did you move to Sanya?—In 2008. But I _______ in Tibet for 8 years.A. has worked B. has been workedC. have been working D. worked用现在完成时和过去时都可以吗？

问题 定语从句问题：demonstrate后面能跟定语从句吗

Numerical simulations are performed to demonstrate that the proposed scheme can guarantee the stability of closed-loop systems.我在demonstrate后面加一个定语从句来描述，不知道是否可以。中文意思：应用仿真来证明了提出的控制方案能够保证闭环系统的稳定...

问题 是否which引导名词性关系分句

I am not exactly sure of the rules and conditions related to a student loan and would appreciate it if you could send me the details for repayments, the interest rates applicable and the periods for which loans are available.曹老师，这里的which是不是做关系限定词引导名词性关系...

问题 动词need在否定迁移中如何与后面成分搭配

老师您好：有这样一道选择题：I don’t think he ______ a new bike.   A. need to buy      B. needs buy     C. need     D. need buy 答案是A，但是我认为C和D也可以，请求解析一下！ 

问题 pay his way through...如何理解

看到有一句话：He used the earning from farm to pay his way through earning a bachelor of science degree from the University of Nebraska. 字幕意思大概是：他用农场收益支付大学学费并获得理科学士学位。对于这句话这里为什么使用单词way和through及其含...

问题 signed proposal（signed是形容词还是过去分词）

Give the signed proposal to Mr Zhou.这是高中英语新教材译林版必修1第1单元的两个句子(p8)。这里的 signed 是过去分词吗？还是形容词？我在词典上没有查到它，说明它还不是形容词吧。

问题 of what 这种结构后面的东西怎么翻译比较通顺

A newly-passed law asks big fast-food chains to specify the calorie count of what they serve on the menu. 句中的 of what 这种结构后面的东西怎么翻译比较通顺?

问题 a piece of litter 的理解

Drop a piece of litter and can't bothered to pick it up.本句出自北师大高中英语必修第三册第8单元(p30)。英语用 a piece of paper / wood / metal / plastic / leather / cloth 等可以理解，但说 a piece of litter 感觉有些奇怪。如何理解 a piece of 修饰 litter？

问题 cook, cook rice, cook meal(做饭)的有区别

cook，cook rice，cook meal 表示“做饭”意思时，有区别吗?1.Tonight it's my turn to cook.2.I'll cook and you read the paper.

问题 may not be providing表达什么意思

May not be providing表达什么意思？是什么时态。so have them是什么结构？ It seems schools may not be providing an opportunity for children to re-express their ideas and so have them tested and refined by teachers and their peers.