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问题 条件状语从句的时态问题

请问条件句的主从句通常可以用什么样的时态呢？比如这一句话：If you had to explain the most simple of procedures, you might feel frustrated. 这句话是条件句吗？ 为什么用了过去式呢？可以用现在时吗？

问题 as...as比较结构

they stagger home loaded with as many exotic items as they can carry（课后习题答案）they stagger home loaded with as many of the exotic items as they can carry（原文）请问两句哪句正确（新概念3，41课）

问题 不符合通常句式的强调句

填that, 因为是强调句，但不是很明白，请老师分析下:But do you know what it is ______ that _______ makes the weather change?（一般形式应该是it is...that 啊？）

问题 let的用法

...？If people are reluctant to let younger people into government then it could affect the ability of future leaders.再就是，then这样用可以么？then是副词，放在一个句子里，不是前后需要加逗号么？谢谢老师。

问题 serve的用法与理解

想请教你，如按照serve的字面直译是：营销预算为谨慎的考虑服务，好像不太对。我应该如何理解这个serves：The marketing budget serves careful consideration, because it not only serves to create market mpressions, but it is expected to generate benefits.

问题 you的指代什么

请问一下。To these students, I'd like to say that to break the bad habit , above all, you should believe in yourself and have a strong will.为什么不是yourselves前面不是these students吗？还可以请问一下say that to...是什么用法吗？十分感谢！

问题 as引导从句的用法

老师你好：But he warns that some pieces may be thrown into higher orbit, as occurred after America destroyed a wayward satellite at about the same altitude in 2008.这里面as是什么意思呢，做什么成分呢？这是个比较状语从句吗？

问题 所有格的使用疑问

"Today the election results have been announced. A new prime minister will take over. Our countrymen have given their verdict, and we respect that," Gandhi said.请问这里的election为什么不用形容词或名词所有格？

问题 signaled shutdown是什么意思

新编英语第三版课文里的一句：The part of my brain that switches off when I do anything strenuous signaled shutdown and my feet moved metronomically.这里的signaled shutdown是什么意思，充当什么成分？

问题 非谓语being done 和done问题

题：Being left alone at home made the boy really annoyed.疑问：为什么不用Left 而用Being left ?

问题 bring与take的方向性

Tea was brought to Korea and Japan during the 6th and 7th centuries.专家老师，该句中用的是bring,能改用take替换吗？

问题 formal在文中的意思

Ritual is defined by sociologists as "that part of family life that the family likes abiout itself, is proud of, and wants formally to continue."请问第一个"that"和"formally"是什么意思？

问题 God（上帝）做主语时的主谓一致

当God作主语时，谓语动词用三单还是原型？如：God help / helps the people who help themselves.

问题 汉译英：我最喜欢的水果是苹果。

My favourite fruit is apple.My favourite fruit is an/the apple.My favourite fruit is apples.以上说法，哪种是对的？为什么？

问题 how long before什么意思

how long before they turn their guns in the other direction（他们还要倒戈多久） how long 本身就可以表示多久，为什么要加一个before？是“在……之前有多久”的意思？