请教老师如下问题，1. He has coughed a lot recently. He ought to gave up smoking. coughed是短暂非终结性动词，不对现在产生影响。所以，仅仅表示我 ‘咳嗽过’这个事件发生在现在以前某个不确定的时间。是这样吗？ 2. Lee _____(learn) Engli...
At their best, they are works of art and there is a tactile pleasure in
books necessarily lost in e-book versions.老师这个in book是状语表示在书中存在能触知的快乐？那lost是过去分词作后置定语修饰谁？为什么用过去分词谁是他逻辑主语？in e-book
versions...
...过），as it appears……中的形式主语it不能单独出现，必须和逻辑主语（that this system does not seem fair）同时省略。（也可能是我对曹老师的讲解理解不到位，在这里进行了错误的类推。曹老师的讲解原文：例如：The difficulties are even...
问题一：Having been doing可以用于状语，独立主格，和作主语吗？
比如以下：Having been walking in the desert for three hours, we are tired.(作状语) It having been raining for several days, we had to stay at home.（独立主格） Having been working for several...
... how we should be resisting it.
请问在这里，should be doing是不是和will be doing相同，都是对未来的单纯预测，只不过使用should和will稍微有差别。
如果不是的话，这里为什么用should be doing而不用，should resist表示对将来的预测？这是进行...
...reason to pay attention
to our dreams at all unless they keep us from sleeping or "we wake up in
panic," Cartwright says.
The brain is as active during REM (rapid eye movement) sleep-when most
vivid dreams occur-as it is when fully awake,says Dr. Eric Nofzinger at the University of Pittsburgh.
这...
...对比：
A black and a
white dogs are playing in the yard. 一只黑狗和一只白狗正在院子里玩。（两只狗）
A black and white
dog is playing in the yard. 一只黑白花狗正在院子里玩。(一只狗)
该网站认为这两句话都是对的。但是我对A black and a
white do...
...对比：
A black and a
white dogs are playing in the yard. 一只黑狗和一只白狗正在院子里玩。（两只狗）
A black and white
dog is playing in the yard. 一只黑白花狗正在院子里玩。(一只狗)
该网站认为这两句话都是对的。但是我对A black and a
white do...
Do you happen to know anybody in the university that this dictionary was compiled at?是修饰anybody还是university呢？感觉 修饰anybody很奇怪。被某个人汇编？be compiled at anybody？
The international date line runs from the North to the south pole, but
it isn't straight. It just so happens to pass right between the Diomedes
Islands, in the Bering Sea, making it
possible to travel through time just by crossing only 3.8 km. Not only are these two islands apart in two different co...
In what other ways do you think dogs are able to help people?一般情况下，特殊疑问句的疑问词为what、where、what color, how many等。句中in what other ways 是介词(in)+复合疑问词（what other ways)构成的疑问词吗？这种介词引导的疑问词可普遍适用...
They have treated me shamefully -- shamefully. When the facts come out in Frankland v. Regina I venture to think that a thrill of indignation will run through the country. Nothing would induce me to help the police in any way. For all they cared it might have been me, instead of my effigy, whic...