找到约 40000 条结果

问题 状语从句选择题(in case,even if,unless,when)

How can you expect to learn anything　_______ you never listen?A.in case　　　　 B.even if　　　　 C.unless　　　　 D.when答案为when？什么用法? 谢谢!

问题 完成体和完成进行体的辨用

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...

问题 fell below 2.3 是下降到2.3以下，还是下降了不足2.3？

The ten year treasury yield fell below 2.3 ％ this week.不知是fell to below 2.3％还是fell by below 2.3%，希望老师解答一下

问题 想请教一个has gone和has been的问题

He has gone to live abroad.He_____abroad for some time now. 1.has gone 2.has been 这里he has been abroad for some time now. 和he has gone abroad for some time now.这个区别我搞不清，麻烦老师讲一下，谢谢。

问题 请教曹老师有关虚拟语气的问题

...should fail this , we are ruined.if you should meet Henry, tell him I want to see him.

问题 been分词作后置修饰语（求曹老师回答）

...yway, I heard there's some price been put on your head and someone's going to have a crack at you. （总之，我听说有人悬赏你的人头，会有人来干掉你。）这里的been put on your head是some price的后置修饰语吗？为什么不直接说there's some price put on your head呢...

问题 含有基数词复数形式的成语

...三两两从农舍散去。 I’m all at sixes and sevens about what to do. 我心里七上八下，不知该怎么办. 这些句子中的 by (in) twos and threes（三三两两）以及 at sixes and sevens（乱七八糟，七上八下）都是成语，但它们有个共同特点，就是...

问题 what is wrong with the machine是陈述语序吗

As nobody here knows what is wrong with the machine，we must send for an engineer to handle the problem. knows 后的从句 what is wrong with the machine 为什么不用陈述语序？

问题 in the first reduction的分析与理解

...一个句子：The single image is reduced in the first reduction by 2：1 to 40：1 .单个图象第一次缩小到二分之一至四十分之一。 对于这个句子中的in the first reduction ，我很困惑，因为译文中“第一次”对应的应是“in the first time”，请专家...

问题 动名词前为什么要加介词（涉及on sharing）

They agreed to share the remuneration. (1)They agreed on sharing the remuneration. (2)句子（2）中的动名词sharing前面为什么加介词on,去掉介词on可以吗？这说明句子（2）中的agreed是不及物的吧？ 谢谢老师的解答。

问题 on the very day后面接什么时态

哈利波特里有一句话fine thing it would be if, on the very day you-know-who seems to have gone, the muggles found about us. 这句话如果不用seems，是该说on the very day you know who has gone,还是该说left.该用完成时还是过去时？the very day指的是今天。

问题 as the way he says it的结构

" It's not so much what my husband says, " a tearful wife confides, " as the way he says it. Why does he have to yell at me?as the way he says it是倒装结构吗？way后怎么省略了关系代词？

问题 each in turn中的each是代词还是副词

If we now thirst for protein as if it were water, it may be because the other two macronutrients – fats and carbohydrates – have each in turn been made to seem toxic in the public mind. 这里的each in turn可以看做插入语吗，那each的词性是代词还是副词？

问题 由两个比较级组成的句子，不加连接词的疑问

The larger the specific heat capacity is, the more heat is needed to change the same temperature.请问老师，这个句子中不加连接词，直接用逗号隔开是对的吗？总感觉经常看到过这样的句子，但是找不到出处了，这是我自己写的，请老师帮忙看一下.

问题 as bad as they once were but应该如何理解

SINCE the 1940s, southern California has had a reputation for smog. Things are not as bad as once they were but, according to the American Lung Association.