demand可数吗,demand ,require ,request用法辨析(后面动词或

生活常识 2023-05-09 17:56生活常识www.pifubingw.cn

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英语语法

1. 为什么要用being?直接写of not accurate行吗? Answer: 其实提问者自己已回复了这个问题,只是当局者迷。of既然为介词,后面显然要接名词成份。故of not accurate 不成. 要用也得是of inaccuracy 或of no accuracy.但后面的with their bookkeeping为状语成分是不能修饰名词的,所以就用了of not being accurate with their bookkeeping这个结构。 2. that后面是宾语从句吧?宾语从句要有完整的句势结构对吗?measures=主语 be taken=谓语 是被动语态,但是为什么要用be?用are或者was行吗? Answer: 当insist 表示“坚决主张;坚持要求”,接that从句,用虚拟语气。即“should+动词原形”,should可省略。表示对将来事实可能相反的一种虚拟. 即 They all insisted that measures (should )be taken accordingly to achieve accuracy. 可以清晰看出省略了should是这里用be的原因,而为什么会省略should或用should+动词原形是由insist引导的宾语从句时虚拟用法的一种表现形式所导致的。 P.S. 就提问者关于句构的分析我想说两句 英语中一些介词的搭配,有些时候并不是根据介词本身的词意来选择的 如做控告讲时,虽然charge与accuse词义相近,但它们所要求的介词却不同 She charged him with murder. She accused him of murder 她指控他杀人 再如做指责讲时,虽然blame与accuse词义相近,但它们所要求的介词却不同 She blamed me for carelessness She accused me of carelessness 她责备我粗心大意 从以上例子可以看出有些时候介词的选择并不是缘与其本身的词义,而是要考虑介词与动词的搭配关系,这种搭配往往是“习惯性”的,是需要记住的。如同汉语中的茅屋与“茅庐,如果看过《三国》,了解“三顾茅庐”的历史典故,就不会闹出“三顾茅屋”的笑话了. 上面罗嗦了这么多,是因为注意到提问者把句子进行的“主+谓+宾+宾补“的结构划分, 虽然accuse可作不及物动词,但这里accuse显然做的是及物动词不然后面不可能直接接宾语,如果后面是宾补成分,为什么不能像see sb doing sth那样直接接宾补,而加上了介词of 本来如楼上几位所言当成固定用法记住就可以,但是如果真要较真其句构划分愚以为应是“主+谓+宾+状后面是介宾结构做原因状语,当句构的分析最终目的还是为了理解。 祝 学习进步!

关于英语语法

这是独立主格结构。可以当做固定短语去记。 独立主格结构是由名词或代词加上分词构成的一种独立结构,用于修饰整个句子。独立主格结构中的名词或代词与其后的分词等构成逻辑上的主谓关系。这种结构与主句不发生句法上的联系,它的位置相当灵活,可置于主句前、主句末或主句中,常由逗号将其与主句分开。需特别注意的是,独立主格结构与主句之间不能使用任何连接词。 1. 作时间状语 My shoes removed,I entered a low-ceilinged room,treading cautiously on the soft tatami matting. 我脱掉鞋子后,走进一间屋顶很低的房间,小心翼翼地踩在柔软的塌塌米垫子上。 The governor pondering the matter,more strikers gathered across his path. 总督思考问题时,更多的罢工工人聚集在他要通过的路上。 2. 作条件状语 Weather permitting,they will go on an outing to the beach tomorrow. 如果天气允许的话,他们将在明天组织一次海滨郊游。 Such being the case,you have no grounds for dismissing him. 如果情况如此的话,你没有理由解聘他。 3. 作原因状语 The boy leading the way, we had no trouble finding the strange cave. 由那个男孩带路,我们很容易就找到了那奇怪的洞。 There being no further business to discuss, we all went home. 没有别的事可讨论,我们都回家了。 4. 作伴随状语或补充说明 I took my ticket,and marched proudly up the platform,with my cheeses,the people falling back respectfully on either side. 我拿着车票还有我的奶酪,雄赳赳气昂昂地跨步走向月台。人们似乎很尊敬我,纷纷向两边退去。 Ten students entered for the competition, the youngest a boy of 12. 十个学生报名参加了这次竞赛,年纪最小的是个12岁的男孩。 5. 作定语,独立主格结构作定语其功能相当于一个定语从句。 He is the person with a lot of questions to be settled. 他就是有许多问题要解决的那个人。 He was walking along the road without any street lights on its both sides. 他走在一条两边没有路灯的马路上。 Close to the bank I saw deep pools, the water blue like the sky. 靠近岸时,我看见几个深池塘,池水碧似蓝天。

七年级 英语语法

七年级英语语法虽然是从简单的一些日常用语出发的,但语法中常会有一些知识点看起来很细小,容易被忽视,但这些知识点掌握不熟练,往往会造成一些语法应用上的错误。因此在学习七年级英语语法时,要认真、细心,不要觉得一些地方不重要而得过且过。 下面从几个方面,总结出了七年级英语语法,如果要复习英语句法的同学,可以参考一下, 一、七年级英语语法——词法 1、名词 A)、名词的数 我们知道名词可以分为可数名词和不可数名词,而不可数名词它没有复数形式,但可数名词却有单数和复数之分,复数的构成如下: 一)在后面加s。如:fathers, books, Americans, Germans, apples, bananas 二)x, sh, ch, s, tch后加es。如:boxes, glasses, dresses, watches, wishes, faxes 三)1)以辅音字母加y结尾的变y为i再加es 如:baby-babies, family-families, duty-duties, comedy-comedies, documentary-documentaries, story-stories 2)以元音字母加y结尾的直接加s。如:day-days, boy-boys, toy-toys, key-keys, ways 四)以o结尾加s(外来词)。如:radios, photos, 但如是辅音加o的加es:如: tomatoes西红柿, potatoes马铃薯 五)以f或fe结尾的变f为v再加es(s)。如:knife-knives, wife-wives, half-halves, shelf-shelves, leaf-leaves, yourself-yourselves 六)单复数相同(不变的)有:fish, sheep, deer鹿子, Chinese, Japanese 七)一般只有复数,没有单数的有:people,pants, shorts, shoes, glasses, gloves, clothes, socks 八)单词形式不变,既可以是单数也可以是复数的有:police警察局,警察, class班,同学, family家,家庭成员 九)合成的复数一般只加主要名词,多数为后一个单词。如:action movie-action movies, pen pal-pen pals; 但如果是由man或woman所组成的合成词的复数则同时为复数。如:man doctor-men doctors, woman teacher-women teachers 十)有的单复数意思不同。如:fish鱼 fishes鱼的种类, paper纸 papers报纸,卷子,论文, work工作 works作品,工厂, glass玻璃 glasses玻璃杯,眼镜, orange桔子水 oranges橙子, light光线 lights灯, people人 peoples民族, time时间 times时代, 次数, chicken 鸡肉 chickens 小鸡 十一) 单个字母的复数可以有两种形式直接加s或’s。如:Is (I’s), Ks (K’s)。但如是缩略词则只加s。如:IDs, VCDs, SARs 十二) 特殊形式的有:child-children, man-men, woman-women, foot-feet, mouse-mice, policeman-policemen, Englishman-Englishmen B)名词的格 当我们要表示某人的什么东西或人时,我们就要使用所有格形式。构成如下: 一)单数在后面加’s。如:brother’s, Mike’s, teacher’s 二)复数以s结尾的直接在s后加’,如果不是以s结尾的与单数一样处理。如:Teachers’ Day教师节, classmates’; Children’s Day六一节, Women’s Day三八节 三)由and并列的名词所有时,如果是共同所有同一人或物时,只加最后一个’s,但分别拥有时却分别按单数形式处理。如:Mike and Ben’s room迈克和本的房间(共住一间),Mike’s and Ben’s rooms迈克和本的房间(各自的房间) 2、代词 项目 人称代词 物主代词 指示代词 反身代词 人称 主格 宾格 形容词 名词性 第一人称 单数 I me my mine myself 复数 we us our ours ourselves 第二人称 单数 you you your yours yourself 复数 you you your yours yourselves 第三人称 单数 she her her hers herself he him his his himself it it its its this that itself 复数 they them their theirs these those themselves 3、动词 A) 第三人称单数 当动词是第三人称单数时,动词应该像名词的单数变动词那样加s,如下: 一)一般在词后加s。如:comes, spells, waits, talks, sees, dances, trains 二)在x, sh, ch, s, tch后加es。如:watches, washes, wishes, finishes 三)1)以辅音字母加y结尾的变y为i再加es。如:study-studies, hurry-hurries, try-tries 2)以元音字母加y结尾的直接加s。如:plays, says, stays, enjoys, buys 四)以o结尾加es。如:does, goes 五)特殊的有:are-is, have-has B) 现在分词 当我们说某人正在做什么事时,动词要使用分词形式,不能用原形,构成如下: 一)一般在后加ing。如:spell-spelling, sing-singing, see-seeing, train-training, play-playing, hurry-hurrying, watch-watching, go-going, do-doing 二)以不发音e的结尾的去掉e再加ing。如:dance-dancing, wake-waking, take-taking, practice-practicing, write-writing, have-having 三)以重读闭音节结尾且一个元音字母+一个辅音字母(注意除开字母组合如show –showing, draw-drawing)要双写最后的辅音字母再加ing。如:put-putting, run-running, get-getting, let-letting, begin-beginning 四)以ie结尾的变ie为y再加ing。如:tie-tying系 die-dying死 lie-lying 位于 4、形容词的级 我们在对两个或以上的人或物进行对比时,则要使用比较或最高级形式。构成如下: 一) 一般在词后加er或est(如果是以e结尾则直接加r或st)。如:greater-greatest, shorter –shortest, taller –tallest, longer –longest, nicer- nicest, larger -largest 二)以重读闭音节结尾且1个元音字母+1个辅音字母(字母组合除外,如few-fewer fewest)结尾的双写结尾的辅音再加er est。如:big-bigger biggest, red-redder reddest, hot-hotter hottest 三) 以辅音字母+y结尾的变y为i加erest。如:happy-happier happiest, sorry-sorrier sorriest, friendly-friendlier friendliest(more friendly most friendly), busy-busier busiest, easy-easier easiest 四)特殊情况:(两好多坏,一少老远) goodwell - better best manymuch - more most badill – worse worst little- less least old- olderelder oldesteldest far- fartherfurther farthestfurthest 5、数词 (基变序,有规则;一、二、三,自己背;五、八、九、十二;其它后接th;y结尾,变为i, eth跟上去。) first, second, third; fifth, eighth, ninth, twelfth; seventh, tenth, thirteenth, hundredth; twenty-twentieth, forty-fortieth, ninety-ninetieth 二、七年级英语语法——句式 1.陈述句 肯定陈述句 a) This is a book. (be动词) b) He looks very young. (连系动词) c) I want a sweat like this. (实义动词) d) I can bring some things to school. (情态动词) e) There’s a computer on my desk. (There be结构) 否定陈述句 a) These aren’t their books. b) They don’t look nice. c) Kate doesn’t go to No. 4 Middle School. d) Kate can’t find her doll. e) There isn’t a cat here. (=There’s no cat here.) 2. 祈使句 肯定祈使句 a) Please go and ask the man. b) Let’s learn English! c) Come in, please. 否定祈使句a) Don’t be late. b) Don’t hurry. 3. 疑问句 1) 一般疑问句 a) Is Jim a student? b) Can I help you? c) Does she like salad? d) Do they watch TV? e) Is she reading? 肯定回答: a) Yes, he is. b) Yes, you can. c) Yes, she does. d) Yes, they do. e) Yes, she is. 否定回答: a) No, he isn’t. b) No, you can’t. c) No, she doesn’t. d) No, they don’t. e) No, she isn’t. 2) 选择疑问句 Is the table big or small? 回答 It’s big. It’s small. 3) 特殊疑问句 ① 问年龄 How old is Lucy? She is twelve. ② 问种类 What kind of movies do you like? I like action movies and comedies. ③ 问身体状况 How is your uncle? He is wellfine. ④ 问方式 How docan you spell it? L-double O-K. How do we contact you? My e-mail address is cindyjones@163.com. ⑤ 问原因 Why do you want to join the club? ⑥ 问时间 What’s the time? (=What time is it?) It’s a quarter to ten a.m.. What time do you usually get up, Rick? At five o’clock. When do you want to go? Let’s go at 7:00. ⑦ 问地方 Where’s my backpack? It’s under the table. ⑧ 问颜色 What color are they? They are light blue. What’s your favourite color? It’s black. ⑨ 问人物 Who’s that? It’s my sister. Who is the boy in blue? My brother. Who isn’t at school? Peter and Emma. Who are Lisa and Tim talking to? ⑩ 问东西 What’s thisthat (in English)? It’s a pencil case. What else can you see in the picture? I can see some broccoli, strawberries and hamburgers. 11问姓名 What’s your aunt’s name? Her name is Helen.She’s Helen. What’s your first name? My first name’s Ben. What’s your family name? My family name’s Smith. 12 问哪一个 Which do you like? I like one in the box. 13 问字母 What letter is it? It’s big Dsmall f. 14 问价格 How much are these pants? They’re 15 dollars. 15 问电话号码 What’s your phone number? It’s 576-8349. 16 问谓语(动作) What’s he doing? He’s watching TV. 17 问职业(身份) What do you do? I’m a teacher. What’s your father? He’s a doctor. 三、七年级英语语法——时态 1、一般现在时 表示普遍、经常性的或长期性的动作时使用一般现在时,它有: Be 动词:She’s a worker. Is she a worker? She isn’t a worker. 情态动词:I can play the piano. Can you play the piano? I can’t play the piano. 行为动词:They want to eat some tomatoes. Do they want to eat any tomatoes? They don’t want to eat any tomatoes. Gina has a nice watch. Does Gina have a nice watch? Gina doesn’t have a watch. 2、现在进行时 表示动词在此时正在发生或进行就使用进行时态,结构为sb be v-ing sth + 其它. I’m playing baseball. Are you playing baseball? I’m not playing baseball. Nancy is writing a letter. Is Nancy writing a letter? Nancy isn’t writing a letter. They’re listening to the pop music. Are they listening the pop music? They aren’t listening to the pop music.

四级高频词汇,最新的,不要忽悠我

大学英语四级考试大纲 vacant a.空的;未被占用的 vacation n.假期,休假 vacuum n.真空;真空吸尘器 vague a.模糊的,含糊的 vain a.徒劳的;自负的 valid a.有效的;正当的 valley n.(山)谷,溪谷;流域 valuable a.值钱的;有价值的 value n.价值;价格 vt.评价 van n.大篷车,运货车 vanish vi.突然不见,消失 vanity n.虚荣心,虚夸 vapour n.汽,蒸气 variable a.易变的 n.变量 variation n.变化,变动;变异 variety n.多样化;种类;变种 various a.各种各样的,不同的 vary vt.改变;使多样化 vase n.瓶,花瓶 vast a.巨大的;大量的 vegetable n.植物;蔬菜 vehicle n.车辆,机动车 veil n.面纱,面罩;遮蔽物 velocity n.速度,速率 velvet n.丝绒,天鹅绒 venture n.towards 态度,看法   a greatgood deal of 大量,非常,极其   influence in 干涉,介入   interference with 妨碍,打扰   introduction to 介绍   a lot (of) 许多(的),大量(的)   lots of 大量,许多   fall in love (with sb) 爱上(某人)   reply to 回答,答复   trolley bus 电车   I.D. card 身份证   credit card 信用卡   no doubt 无疑地,很可能   next door 隔壁   out of doors 在户外   face to face 面对面地   a few 有些,几个   quite a few 不少,相当多   a little 一点,一些   little by little 逐渐地,一点点地   quite a little 相当多,不少   no matter 无论   the moment (that) 一…(就)   no more 不再   fair play 公平竞赛,公平对待   rest room 厕所,盥洗室   primary school 小学   side by side 肩并肩地,一起   heart and soul 全心全意   step by step 逐步地   ahead of time 提前   all the time 一直,始终   once upon a time 从前   once in a while 偶尔   no wonder 难怪,并不奇怪   word for word 逐字地   decline with thanks 婉言谢绝

demand可以加动词原形吗

demand sth 的用法比较常见,或用作名词 market demand,in great demand,high demand这样的

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