刘永科
刘永科 - 教育出版集团英语总顾问 & 英语系列图书主编
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性别: - 北京 注册于 2014-01-11

擅长:语法理论,语言学,文化背景

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问一个国家的人口总数可以用how many people (persons)吗

▲问及人口除了用What is the population of...? 外,还可用How many people ...? 这两种问句一般涉及较大范围,如某个国家、地区或城市的人口。▲如果问及较小范围,如家庭、党派、组织、团体、球队、俱乐部、代表团等的人数,用How many people ...? 或How many persons ...? 均可。例如:How many persons are there in yo...

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将这个句子改为被动语态

The best materials are used by this shop to make dresses.  

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from pursuing their dreams是状语吗?

What holds people back from pursuing their dreams? 【翻译】什么东西会阻止人们去追求他们的梦想呢?【分析】1. hold back的意思等于prevent。本句可转换为:What prevents people from pursuing their dreams?2. from表示“摆脱,远离”之意。from pursuing their dreams作状语。3. 英语中存在着大量的“及物动词+小品词”...

回答于 1秒前

3 赞同

是并列谓语吗?

Everything in the concept has been built, is operating or has a close cousin that is operating.本句话是不是一个简单句中,一个主语带有三个并列谓语动词has been built, is和has呢?【翻译】此概念中的所有项目都已存在(“已经建立”就意味着存在了),都具有可操作性,或者接近可操作性。【分析】严格说,这句话不是...

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2 赞同

请问“We learn from history that we do not learn from

We learn from history that we do not learn from history.【答】有时候,英语句子像是绕口令,其实这是一种修辞格,蕴含寓意。旨在让读者记忆深刻,留下无穷趣味。理解句子的意思,还是从结构上入手。这是一个主从复合句:主句+宾语从句。为理解方便,我把结构微调一下:From history we learn that we do not learn from...

回答于 1秒前

16 赞同

respective,respectful,respecting,respectable的用法区别

除了网友给的4个单词外,我再加上两个,一共是6个同源词,我把它们放在同一个语境里,请仔细体会它们词义的差别,最好背诵。respectablerespectfulrespectiverespectivelyrespectingrespected Mr. Smith is a respectable teacher and I am respectful to him. Though a respectable person and a respectful person h...

回答于 1秒前

8 赞同

not…until强调句的时态问题

凭感觉not…until…的强调句都用的是一般过去时。如:It wasn’t until we had sat down to eat that we got back to the subject of Tom Halliday. 我们直到坐下来吃饭时才又提起汤姆·哈利迪这个话题。It wasn’t until we each went our separate ways that I began to learn how to do things for myself. 直到大家各奔东西...

回答于 1秒前

14 赞同

I don't know as he is stupid.这句话怎么理解

I don't know as he is stupid. 这句话怎么理解?as he is stupid 是什么从句?【答】在非正式文体中,as 有时可以代替that,引导宾语从句。这句话实际等于说:I don't know that he is stupid. 

回答于 1秒前

2 赞同

条件从句与主句可以将虚拟语气与陈述语气混在一起使用吗

If you know London so well, you shouldn’t have got so hopelessly lost. 【答】if 有时候并不表示条件或假设:如果;假如,倘若,要是。而是还有其他意思,例如:1. 尽管;虽然;即使:If he is little, he is strong.他尽管年纪小,力气倒蛮大的。If I am wrong, you are not right.即使我错了,你也不对。I...

回答于 1秒前

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请分析下这几个词的用法

Asia has presented sound momentum marked by (1. 介词by 的宾语是动名词) unlocking the huge market potential, (2. 仍然是by 的宾语动名词) accelerating industrial upgrading, effective economic (3. 查词典得知,restructuring 是名词) restructuring. 这里面没有现在分词。现在分词主要作定语、状语或...

回答于 1秒前