3天前 回答问题

句子副词在句中的位置并不固定，根据情况的需要，它可以位于句首、句中或句末。请看薄冰教授在其《英语语法札记》第二集中的相关解释：

3天前 回答问题

引用徐广联《当代高级英语语法》（精装版）中的一个解释供参考：

6天前 回答问题

文中的 such as...一般认为是同位语，但也有人认为是插入语或定语（专家之间的观点有分歧）。提供相关依据如下：1.曹焰主编的《英语正误用法指南》：2. 薄冰编著《薄冰高级英语语法》：3.赵振才主编《英语常见问题解答大词典》：

6天前 回答问题

不定式进行式的基本形式为to be doing，其主要用法如下：(1) 表示同时进行：即表示与谓语动作同时发生且正在进行的动作。如：He pretended to be studying. 他假装在学习。I happened to be standing next to him when he collapsed. 他倒下的时候我恰巧站在他旁边。(2) 表示将来：正如可用进行时态表示将来意义一样，不定式的进行式有时也可表示将来。如：I hope to be staying with you. 我希望和你住在一起。The old man seems to be dying. 这老人似乎要死了。I’m quite pleased to be leaving this country. 就要离开这个国家我很高兴。(3) 表示一般情况：即看不出动作的先后关系，而是表示一种情况或现象。如：I noticed that he seemed to be smoking a lot. 我发现他似乎烟瘾很大。Just to be doing something was a help. 做点事是有益处的。You are too young to be meeting young men. 你太小，不能交男朋友。

6天前 回答问题

当since用作连词引导时间状语从句时，其主句通常要用完成时态当since用作连词引导时间状语从句时，其主句通常要用现在完成时：We have lived in England since I was a child. 从我小时候起我们就住在英国。He’s put on a lot of weight since he gave up smoking. 他戒烟后体重增加了许多。You’ve changed a lot since I last saw you. 自从我上次见到你以来，你改变了很多。有时主句还可以用现在完成进行时，强调动作的持续。如：I’ve been feeling down since I lost my job. 自从失去工作以后，我的情绪一直处于低潮。She’s been getting a bit above herself since she won her award. 她获奖以来渐渐有点骄傲了。事实上，不管since是用作介词、连词还是副词，句子（主句）谓语通常都要用完成时态。如：I’ve had nothing to eat since lunchtime. 从午饭时间到现在我什么都没吃。（since为介词）We had a letter last week. We haven’t heard since. 上星期我们接到了一封信。从那以后没有收到过信。（since为副词）She moved to London last May and has since got a job on a newspaper. 她去年5月搬到了伦敦，此后一直在报社工作。但也有少数特殊情况：(1)表示时间长度，通常要用一般现在时代替现在完成时。如：It’s a long time since I met you last. 从上次见到你到现在已有很长时间了。It’s a fortnight since I last saw her. 我有两个星期没有看见她了。(2) 如果不强调动作或状态的持续，而是关心状况的变化，可以不用完成时态。如：You’re looking much better since your operation. 手术后你看上去好多了。Since he went on that course he thinks he knows everything. 自从他选了那门课程，他就认为自己什么都懂了。比较下面两个句子因时态不同所导致的含义变化：She doesn’t come round to see us so much since her marriage. 自从她结了婚以后，她不怎么过来看我们了。She hasn’t come to see us since her marriage. 自从她结了婚以后，她还没来看过我们。(3) 当涉及动词seem时，通常不用完成时态。如：It seems like years since I last saw you. 从上次见到你以来好像已经有许多年了。(4) 若不是指从过去持续到现在，而是指从较远的过去持续到一个较近的过去，则用过去完成时。比较：He hasn’t eaten anything since he had the accident. 自他出事故以来他一直未吃东西。（指从出事故至现在未吃东西）Yesterday he told me that he hadn’t eaten anything since he had the accident. 他昨天告诉我自出事故以来他一直未吃任何东西。（指从出事故到昨天都未吃东西）

6天前 回答问题

在通常情况下，专有名词具有“独一无二”的含义，因此它通常没有复数形式，即不可数。但是，专有名词的独一无二性通常是相对的，随着范围的扩大，这种独一无二性便会受到破坏。比如在一个小范围内，可能只有一个 Henry，但在一个较大的范围内则可能有多个 Henry, 因此我们有时会见到这样的句子：There are five Henrys in our school. 我们学校有五个亨利。另外，若专有名词转化成了普通名词，也可以是可数的。如：A Mr Smith phoned just now. 一位名叫史密斯先生的人刚才来过电话。The museum bought a Rembrandt. 那家美术馆买了一幅伦勃朗的画作。Thousands of Lei Fengs have emerged in China. 中国涌现出了千千万万个雷锋。There are indeed some big cities in our country, but there doesn’t seem to be a New York or a Tokyo. 在我国的确有些大城市，可似乎没有像纽约、东京那样的城市。

2025-07-05 19:49 回答问题

●weight problem 体重问题；肥胖问题I’ve always had a weight problem. 我一直都有体重问题。She refuses to admit to herself that she has a weight problem. 她不愿承认自己有肥胖问题。Young children should lose weight if they have weight problem. 小孩子必须减肥，如果他们真的有肥胖问题。Her weight problem can be solved with the correct diet and regular exercise. 她的体重问题可以通过控制饮食和经常锻炼来解决。●weight gain 体重增加She was most upset by her recent weight gain. 她因最近体重增加而非常烦恼。Eating too many fatty goods could cause weight gain.过多食用高脂食物会造成体重增加。He was uncomfortable about his conspicuous weight gain. 他对自己体重明显增加感到不安。The baby’s weight gain during the first six months was normal. 这个婴儿在头6个月体重增长正常。Numerous studies show that dieting is useless and may even cause weight gain. 许多研究表明，节食没有角，甚至可能会增加体重。●weight loss  体重下降；减肥Weight loss should be gradual. 减肥应该循序渐进。Common symptoms of diabetes are weight loss and fatigue. 糖尿病的常见症状是消瘦和疲劳。The symptoms of depression can include poor appetite and weight loss. 抑郁症的症状包括食慾不振和体重下降。For more information on weight loss and healthy eating, visit our website. 有关减肥和健康饮食的更多信息，请访问我们的网站。●weight control 体重控制；控制体重Stair climbing could be useful in terms of weight control. 爬楼梯在体重控制方面可能有用。Such educational material aims to correct misconceptions about eating and weight control. 这类教育材料旨在纠正关于饮食和体重控制的误解。Research on yo-yo dieting indicates that going on and off diets repeatedly will make weight control difficult in the long run. 对断续节食的研究表明，反复断断续续的Vitamin C has many roles to play in weight control. Firstly, it is needed for hormone production. 维生素C在控制体重方面扮演着多重角色。首先，荷尔蒙的生成有赖于它。

2025-06-30 22:40 回答问题

是的，句子中的介词 to 是多余的。abroad 表示“在国外”“到国外”等，是副词，不是名词，因此不能与 in, to, at 等介词连用；其前也不用冠词。如：He has gone abroad to continue his studies. 他出国深造去了。Half of my friends live abroad. 我的朋友半数住在国外。注意，abroad 之前虽不能用 in, to, at 之类的介词，但是却可以用介词 from。如：I’ve got a letter from abroad. 我收到一封国外的来信。When telephoning from abroad, dial 865，not 0865. 从国外打电话，要拨865，不要拨0865。

2025-06-25 01:16 回答问题

一、伴随状语伴随状语表示与谓语动词同时发生的次要动作，两者是“同时进行”的并列关系，通常可转化为“and +并列动词”，体现同时性，通常含有“在做……的同时还在做……”“一边……一边……”的意味。如：She sat by the window, reading a book.His wife came into the house carrying a bundle of clothes.He would often discuss things with me, asking my opinion and disagreeing when he saw matters differently. 二、方式状语方式状语用以说明谓语动词“如何发生”，是动作的执行方式或手段，通常无法转化为并列动词，只能用in...way/manner等短语来解释。如果要对方式状语提问，我们用 how。试体会下面的句子：The children came running.He earns a living driving a truck.He spent the whole day doing his homework.

2025-06-24 23:22 回答问题

将 spend 后面的现在分词分析为方式状语是合适析。一个简单的判断方法是：假若我们要对这个现在分词提问，我们用什么疑问词？显然是用表示方式的how：He spent the weekend cleaning.←How did he spend the weekend?She spent lazy days relaxing on the beach.←How did she spend lazy days?They spent the morning walking in the park.←How did they spend the morning?He spent all his working life in a factory.←How did he spend all his working life?再体会下面的句子，你看看这里的 how 是不是可以理解为是 doing 的替代词：How I spend my money is my affair. 我如何用钱是我自己的事。Have you planned how you’ re going to spend your prize money? 你想过如何去花你的奖金吗？Your parents have no right to dictate how you should spend your money. 你父母无权强行规定该如何花钱。We’re giving the medical center a free hand as to how it spends the money. 至于经费如何使用，我们放手让医疗中心自行决定。