Last month, after analyzing figures on epidemics since 1960, The Economist concluded that people die at a higher rate from such disease outbreaks in authoritarian countries than in democratic ones, even controlling for income levels.请问control for在这里是什么意思？
Some use them to keep a close watch on the demand fortheir line of work or gather information on compensation to arm themselves when negotiating for a raise.为什么or并列的是不定式to keep和（to）gather，而不能是use与gather并列呢？
Also,there is something to be said for students being more independent learners, and online learning develops this skill.there is something to be said for 怎么理解，这句话的意思？
1)It
is kind of you to help me.2)It
is important for you to do come here.请教老师：有2个问题一直困扰着我：1)我知道of和for的使用区别。第二句用for sb引出后面不定式的逻辑主语，但是对第一句来说，是不是应该理解成：不定式的逻辑主语是of...
...r, recommending some tourist attractions in your city. Please give reasons for your recommendation.You should write neatly on the ANSWER SHEET.Do not sign your own name at the end of the email. Use “Li Ming" instead.Do not write the address.【我的作文】Dear professor Cook,Welcome to Beijing!...
老师以下两个句型：It is time for sb to do sth.这里的 for sb to do sth 是做time的定语把， 而for sb 做不定式的逻辑主语。It is a great opportunity（pleasure） for sb to do sth. 这里的for sb to do sth是真正的主语把， for sb同样是 不定式的逻辑主...
...。最后句话里反身代词为什么是 himself 而不是 herself？WAR FORTHE PLANET OF THE APES(July 14)Stars: Andy Serkis, Woody Harrelson, Steve ZahnDirector: Matt ReevesThe skinny: Caesar (played via performance capture by Serkis) leads a simian bunch on an epic journey to sa...
With the WIFI we can escape into another world at the click of a button. For many this virtual world is a dream come true. They find they can do away with the daily routines and stay inside for weeks and arrange everything from home. Still others, who get sucked into the virtual world, may find...
...tile men. Right up until comparatively recent times, it was possible for an intelligent person to acquaint himself with almost every branch of knowledge. Thus men of genius like Leonardo Da Vinci or Sir Philip Sidney engaged in many careers at once as a matter of course. Da Vinci w...
曹老师，您在http://ask.yygrammar.com/q-36472.html中提到“for持续时间状语可以表示一个结果状态的持续时间。前提是这个结果状态是事先计划或打算的，主语必须是人。例如：She has gone to USA for 2 months.这句话并非表示她去美国已经二...
...边的大酒店坐公共汽车。Text 2M: Can I help you?W: I’m looking for a size twelve dress.M: Oh, let me see. An eight, a ten. Ah, you’re lucky. I have the
prettiest dress here in a twelve. Why don’t you try it on?男：请问要买什么吗？女：我在找一件12号的裙子。男：...
He turns away, as if finally realising that the faceless, flickering icons on his computer screen will not give him what he longs for.as if引导的方式状语从句这里是将he realises变成了realise再加的宾语从句（that…longs for）吗？