找到约 40000 条结果

问题 代词 he, him, she, her不表示“人”的用法

...作阴性 she, her。如：My car’s not fast, but she does 50 miles to the galloon. 我的汽车不快，但她每加仑汽油能跑50英里。请问：代词 he, him she, her 在哪些情况下可以不表示“人”，而表示其他……

问题 since从句的理解与时态难点

The library ______for more than 60 years since it _____ in 1940. A. has been open; opened B. has been opened; opened C. has opened; was open D. has been open; was open 正确答案为A。但 D 为何不可以呢？有资料说，当 since 引导的状语从句的谓语动词是延续性...

问题 非限制性定语从句可用破折号连接吗

...常是在前后用逗号隔开，但下面这个句子用的是破折号：The tall building over there—which cost 300 million yuan to build—has been empty for a long time. 那边的那栋高楼，就是花费了3亿元的那一栋，已经空置很长时间了。请问老师：非限制性定...

问题 时间不明确时如何推测情态动词所表示的时间

...目： Her birthday was a week ago, so it _______ (can't / be ) on the 25th. A. can't be    B. can't have been 我不太明白25日是说话之后的日子，还是之前，所以不知道应该用对过去的推测，还是对现在的推测。请专家指教，谢...

问题 in enough sth 是个词组吗？为什么查不到呢？

He had been in enough briefings over the years. 这种简要介绍他听过多年啦。Have you ordered in enough envelopes this month? 这月你订足信封了吗 ?怎么感觉 in enough sth 像个词组似的，但是查不到？

问题 would+do是对过去习惯的推测还是表示过去习惯做某事

Before his retirement he would catch the early bus every morning.请问老师，上句中的would是对过去习惯的推测吗？一直以为是过去习惯做某事，可是看到有书说这是对过去习惯的推测，不太明白两者有什么不同？谢谢老师的解答。

问题 动词时态选择题(涉及过去完成进行时等)

When I saw the mess my paper was in,it was obvious that someone             it.A.was reading   B.had read   C.had been reading   D.read请老师详细讲解这道题为什么选C项而不选其他项啊？谢谢老师啦

问题 请问it is 后为什么没表语

We are fortunate that it is , because building new educational systems there and putting enough people through them to improve economic performance would require two or three generations请问老师为什么这里的 it is 没表语？省略了吗？和下句一个道理吗？did后面省略了?&nbs...

问题 not either…or，neither…nor，no …and no… 区别

如：No teacher and no student is admitted Neither I nor he has seen the play before. She isn't either a student or a teacher.

问题 Please give me a chair to sit on.

请问这个句子里的“on”可以去掉吗，不能的话有什么语法规则在里面，可以用汉语里的“兼语”来理解“chair”在这里的作用吗 此外，They have trouble solving the problem being talked about .这里的“about”也和“on”是一样的用法吗

问题 状语从句+主句的标点符号问题

1.Work together, if possible.2.If you want to attract schoolchildren to science and technology, make the lessons more practical.3.If you are threatened with court action don’t panic.4.These glands all react if challenged by infection or trauma.在上面四个句子中，条件状语从句分别是...

问题 关于where关系副词的范围划分问题

Economy：The process or system by which goods and services are produced, sold, and bought in a country or region韦氏高阶词典问题：这条定义当中的by which能否替换成where作为”抽象性地方名词process/system”的关系副词去自行理解。常用的关系副词why/where/...

问题 when visiting和when to visit

And tourists are encouraged to book tickets on the Internet and stay away from busy hours when________.(visit)答案给的是visiting，when visiting在这道题中相当于when they are visiting吧，那意思不就变成“正在参观”了吗，但题目里给我一种“将来”的感觉，“...

问题 now that 应该拆开看待吗

When I went to college, Mom did all the writing. He just sent checks and a little note about how great his lawn looked now that I wasn’t playing football on it.老师好，now that 应该分开看还是合在一起看？如果合在一起对待，now that “由于”，句子理解无障碍。但...

问题 时态问题

...（表事件也可以，详疑问2）例如： I get up at 6:00 every day these years. (时间长度就是最近几年)如果现在也可以是很长一段时间的话？很多动态动词是不是可以用了？疑问4：“一般体”一定表达一个事件的完整过程吗，发生并结束吗...