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to与for的用法和区别

to与for的用法和区别 一般情况下, to后面常接对象; for后面表示原因与目的为多。 Thank you for helping me. Thanks to all of you. to sb.表示对某人有直接影响比如,食物对某人好或者不好就用to; for表示从意义、价值等间接角度来说,例如对某人而言是重要的,就用for. for和to这两个介词,意义丰富,用法复杂。这里仅就它们主要用法进行比较。 1. 表示各种“目的” 1. What do you study English for? 你为什么要学英语? 2. She went to france for holiday. 她到法国度假去了。 3. These books are written for pupils. 这些书是为学生些的。 4. hope for the best, prepare for the worst. 作最好的打算,作最坏的准备。 2.对于 1.She has a liking for painting. 她爱好绘画。 2.She had a natural gift for teaching. 她对教学有天赋/ 3.表示赞成同情,用for不用to. 1. Are you for the idea or against it? 你是支持还是反对这个想法? 2. He expresses sympathy for the common people.. 他表现了对普通老百姓的同情。 3. I felt deeply sorry for my friend who was very ill. 4 for表示因为,由于(常有较活译法) 1 Thank you for coming. 谢谢你来。 2. France is famous for its wines. 法国因酒而出名。 5.当事人对某事的主观看法,对于(某人),对…来说(多和形容词连用)用介词to,不用for.. He said that money was not important to him. 他说钱对他并不重要。 To her it was rather unusual. 对她来说这是相当不寻常的。 They are cruel to animals. 他们对动物很残忍。 6.for和fit, good, bad, useful, suitable 等形容词连用,表示适宜,适合。 Some training will make them fit for the job. 经过一段训练,他们会胜任这项工作的。 Exercises are good for health. 锻炼有益于健康。 Smoking and drinking are bad for health. 抽烟喝酒对健康有害。 You are not suited for the kind of work you are doing. 7. for表示不定式逻辑上的主语,可以用在主语、表语、状语、定语中。 1.It would be best for you to write to him. 2.The simple thing is for him to resign at once. 3.There was nowhere else for me to go. 4.He opened a door and stood aside for her to pass.

(完整版)介词for用法归纳

介词for用法归纳 用法1:(表目的)为了。如: They went out for a walk. 他们出去散步了。 What did you do that for? 你干吗这样做? That’s what we’re here for. 这正是我们来的目的。 What’s she gone for this time? 她这次去干什么去了? He was waiting for the bus. 他在等公共汽车。 【用法说明】在通常情况下,英语不用for doing sth 来表示目的。如: 他去那儿看他叔叔。 误:He went there for seeing his uncle. 正:He went there to see his uncle. 但是,若一个动名词已名词化,则可与for 连用表目的。如: He went there for swimming. 他去那儿游泳。(swimming 已名词化) 注意:若不是表目的,而是表原因、用途等,则其后可接动名词。(见下面的有关用法) 用法2:(表利益)为,为了。如: What can I do for you? 你想要我什么? We study hard for our motherland. 我们为祖国努力学习。 Would you please carry this for me? 请你替我提这个东西好吗? Do more exercise for the good of your health. 为了健康你要多运动。 【用法说明】(1) 有些后接双宾语的动词(如buy, choose, cook, fetch, find, get, order, prepare, sing, spare 等),当双宾语易位时,通常用for 来引出间接宾语,表示间接宾语为受益者。如: She made her daughter a dress. / She made a dress for her daughter. 她为她女儿做了件连衣裙。 He cooked us some potatoes. / He cooked some potatoes for us. 他为我们煮了些土豆。 注意,类似下面这样的句子必须用for: He bought a new chair for the office. 他为办公室买了张新办公椅。 (2) 注意不要按汉语字面意思,在一些及物动词后误加介词for: 他们决定在电视上为他们的新产品打广告。 误:They decided to advertise for their new product on TV. 正:They decided to advertise their new product on TV. 注:advertise 可用作及物或不及物动词,但含义不同:advertise sth=为卖出某物而打广告;advertise for sth=为寻找某物而打广告。如:advertise for a job=登广告求职。由于受汉语“为”的影响,而此处误加了介词for。类似地,汉语中的“为人民服务”,说成英语是serve the people,而不是serve for the people,“为某人的死报仇”,说成英语是avenge sb’s death,而不是avenge for sb’s death,等等。用法3:(表用途)用于,用来。如: Knives are used for cutting things. 小刀是用来切东西的。 This knife is for cutting bread. 这把小刀是用于切面包的。 It’s a machine for slicing bread. 这是切面包的机器。 The doctor gave her some medicine for her cold. 医生给了她一些感冒药。 用法4:为得到,为拿到,为取得。如: He went home for his book. 他回家拿书。 He went to his friend for advice. 他去向朋友请教。 She often asked her parents for money. 她经常向父母要钱。

常用介词用法(for to with of)

For的用法 1. 表示“当作、作为”。如: I like some bread and milk for breakfast. 我喜欢把面包和牛奶作为早餐。 What will we have for supper? 我们晚餐吃什么? 2. 表示理由或原因,意为“因为、由于”。如: Thank you for helping me with my English. 谢谢你帮我学习英语。 3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。如: Let me pick it up for you. 让我为你捡起来。 Watching TV too much is bad for your health. 看电视太多有害于你的健康。 4. 表示时间、距离,意为“计、达”。如: I usually do the running for an hour in the morning. 我早晨通常跑步一小时。 We will stay there for two days. 我们将在那里逗留两天。 5. 表示去向、目的,意为“向、往、取、买”等。如: Let’s go for a walk. 我们出去散步吧。 I came here for my schoolbag.我来这儿取书包。 I paid twenty yuan for the dictionary. 我花了20元买这本词典。 6. 表示所属关系或用途,意为“为、适于……的”。如: It’s time for school. 到上学的时间了。 Here is a letter for you. 这儿有你的一封信。 7. 表示“支持、赞成”。如: Are you for this plan or against it? 你是支持还是反对这个计划? 8. 用于一些固定搭配中。如: Who are you waiting for? 你在等谁? For example, Mr Green is a kind teacher. 比如,格林先生是一位心地善良的老师。 尽管for 的用法较多,但记住常用的几个就可以了。 to的用法: 一:表示相对,针对 be strange (common, new, familiar, peculiar) to This injection will make you immune to infection. 二:表示对比,比较 1:以-ior结尾的形容词,后接介词to表示比较,如:superior ,inferior,prior,senior,junior 2: 一些本身就含有比较或比拟意思的形容词,如equal,similar,equivalent,analogous A is similar to B in many ways.

for和to区别

1.表示各种“目的”,用for (1)What do you study English for 你为什么要学英语? (2)went to france for holiday. 她到法国度假去了。 (3)These books are written for pupils. 这些书是为学生些的。 (4)hope for the best, prepare for the worst. 作最好的打算,作最坏的准备。 2.“对于”用for (1)She has a liking for painting. 她爱好绘画。 (2)She had a natural gift for teaching. 她对教学有天赋/ 3.表示“赞成、同情”,用for (1)Are you for the idea or against it 你是支持还是反对这个想法? (2)He expresses sympathy for the common people.. 他表现了对普通老百姓的同情。 (3)I felt deeply sorry for my friend who was very ill. 4. 表示“因为,由于”(常有较活译法),用for (1)Thank you for coming. 谢谢你来。

(2)France is famous for its wines. 法国因酒而出名。 5.当事人对某事的主观看法,“对于(某人),对…来说”,(多和形容词连用),用介词to,不用for. (1)He said that money was not important to him. 他说钱对他并不重要。 (2)To her it was rather unusual. 对她来说这是相当不寻常的。 (3)They are cruel to animals. 他们对动物很残忍。 6.和fit, good, bad, useful, suitable 等形容词连用,表示“适宜,适合”,用for。(1)Some training will make them fit for the job. 经过一段训练,他们会胜任这项工作的。 (2)Exercises are good for health. 锻炼有益于健康。 (3)Smoking and drinking are bad for health. 抽烟喝酒对健康有害。 (4)You are not suited for the kind of work you are doing. 7. 表示不定式逻辑上的主语,可以用在主语、表语、状语、定语中。 (1)It would be best for you to write to him. (2) The simple thing is for him to resign at once.

双宾语 to for的用法

1.两者都可以引出间接宾语,但要根据不同的动词分别选用介词to 或for:(1) 在give, pass, hand, lend, send, tell, bring, show, pay, read, return, write, offer, teach, throw 等之后接介词to。 如: 请把那本字典递给我。 正:Please hand me that dictionary. 正:Please hand that dictionary to me. 她去年教我们的音乐。 正:She taught us music last year. 正:She taught music to us last year. (2) 在buy, make, get, order, cook, sing, fetch, play, find, paint, choose,prepare, spare 等之后用介词for 。如: 他为我们唱了首英语歌。 正:He sang us an English song. 正:He sang an English song for us. 请帮我把钥匙找到。 正:Please find me the keys. 正:Please find the keys for me. 能耽搁你几分钟吗(即你能为我抽出几分钟吗)? 正:Can you spare me a few minutes? 正:Can you spare a few minutes for me? 注:有的动词由于搭配和含义的不同,用介词to 或for 都是可能的。如:do sb a favour=do a favour for sb 帮某人的忙 do sb harm=do harm to sb 对某人有害

浅谈生物信息学在生物医药方面的应用

浅谈生物信息学在生物医药方面的应用 生物信息学(Bioinformatics)是在生命科学的研究中,以计算机为工具对生物信息进行储存、检索和分析的科学。它是当今生命科学和自然科学的重大前沿领域之一,同时也将是21世纪自然科学的核心领域之一。其研究重点主要体现在基因组学(Genomics)和蛋白质组学(Proteomics)两方面,具体说就是从核酸和蛋白质序列出发,分析序列中表达的结构功能的生物信息。 具体而言,生物信息学作为一门新的学科领域,它是把基因组DNA序列信息分析作为源头,在获得蛋白质编码区的信息后进行蛋白质空间结构模拟和预测,然后依据特定蛋白质的功能进行必要的药物设计。基因组信息学,蛋白质空间结构模拟以及药物设计构成了生物信息学的3个重要组成部分。是结合了计算机科学、数学和生物学的一门多学科交叉的学科。它依赖计算机科学、工程和应用数学的基础,依赖实验和衍生数据的大量储存。他将各种各样的生物信息如基因的DNA序列、染色体定位、基因产物的结构和功能及各种生物种间的进化关系等进行搜集、分类和分析,并实现全生命科学界的信息资源共享。 从生物信息学研究的具体内容上看,生物信息学可以用于序列分类、相似性搜索、DNA序列编码区识别、分子结构与功能预测、进化过程的构建等方面的计算工具已成为变态反应研究工作的重要组成部分。针对核酸序列的分析就是在核酸序列中寻找过敏原基因,找出基因的位置和功能位点的位置,以及标记已知的序列模式等过程。针对蛋白质序列的分析,可以预测出蛋白质的许多物理特性,包括等电点分子量、酶切特性、疏水性、电荷分布等以及蛋白质二级结构预测,三维结构预测等。 基因芯片是基因表达谱数据的重要来源。目前生物信息学在基因芯片中的应用主要体现在三个方面。 1、确定芯片检测目标。利用生物信息学方法,查询生物分子信息数据库,取得相应的序列数据,通过序列比对,找出特征序列,作为芯片设计的参照序列。 2、芯片设计。主要包括两个方面,即探针的设计和探针在芯片上的布局,必须根据具体的芯片功能、芯片制备技术采用不同的设计方法。 3、实验数据管理与分析。对基因芯片杂交图像处理,给出实验结果,并运用生物信息学方法对实验进行可靠性分析,得到基因序列变异结果或基因表达分析结果。尽可能将实验结果及分析结果存放在数据库中,将基因芯片数据与公共数据库进行链接,利用数据挖掘方法,揭示各种数据之间的关系。 大规模测序是基因组研究的最基本任务,它的每一个环节都与信息分析紧密相关。目前,从测序仪的光密度采样与分析、碱基读出、载体标识与去除、拼接与组装、填补序列间隙,到重复序列标识、读框预测和基因标注的每一步都是紧

双宾语tofor的用法

1. 两者都可以引出间接宾语,但要根据不同的动词分别选用介词to 或for: (1) 在give, pass, hand, lend, send, tell, bring, show, pay, read, return, write, offer, teach, throw 等之后接介词to。 如: 请把那本字典递给我。 正:Please hand me that dictionary. 正:Please hand that dictionary to me. 她去年教我们的音乐。 正:She taught us music last year. 正:She taught music to us last year. (2) 在buy, make, get, order, cook, sing, fetch, play, find, paint, choose,prepare, spare 等之后用介词for 。如: 他为我们唱了首英语歌。 正:He sang us an English song. 正:He sang an English song for us. 请帮我把钥匙找到。 正:Please find me the keys. 正:Please find the keys for me. 能耽搁你几分钟吗(即你能为我抽出几分钟吗)? 正:Can you spare me a few minutes? 正:Can you spare a few minutes for me? 注:有的动词由于搭配和含义的不同,用介词to 或for 都是可能的。如: do sb a favou r do a favour for sb 帮某人的忙 do sb harnn= do harm to sb 对某人有害

to和for的用法有什么不同(一)

to和for的用法有什么不同(一) 一、引出间接宾语时的区别 两者都可以引出间接宾语,但要根据不同的动词分别选用介词to 或for,具体应注意以下三种情况: 1. 在give, pass, hand, lend, send, tell, bring, show, pay, read, return, write, offer, teach, throw 等之后接介词to。如: 请把那本字典递给我。 正:Please hand me that dictionary. 正:Please hand that dictionary to me. 她去年教我们的音乐。 正:She taught us music last year. 正:She taught music to us last year. 2. 在buy, make, get, order, cook, sing, fetch, play, find, paint, choose, prepare, spare 等之后用介词for 。如: 他为我们唱了首英语歌。 正:He sang us an English song. 正:He sang an English song for us. 请帮我把钥匙找到。 正:Please find me the keys. 正:Please find the keys for me. 能耽搁你几分钟吗(即你能为我抽出几分钟吗)? 正:Can you spare me a few minutes?

正:Can you spare a few minutes for me? 3. 有的动词由于用法和含义不同,用介词to 或for 都是可能的。如: do sb a favor=do a favor for sb 帮某人的忙 do sb harm=do harm to sb 对某人有害 在有的情况下,可能既不用for 也不用to,而用其他的介词。如: play sb a trick=play a trick on sb 作弄某人 请比较: play sb some folk songs=play some folk songs for sb 给某人演奏民歌 有时同一个动词,由于用法不同,所搭配的介词也可能不同,如leave sbsth 这一结构,若表示一般意义的为某人留下某物,则用介词for 引出间接宾语,即说leave sth for sb;若表示某人死后遗留下某物,则用介词to 引出间接宾语,即说leave sth to sb。如: Would you like to leave him a message? / Would you like to leave a message for him? 你要不要给他留个话? Her father left her a large fortune. / Her father left a large fortune to her. 她父亲死后给她留下了一大笔财产。 二、表示目标或方向的区别 两者均可表示目标、目的地、方向等,此时也要根据不同动词分别对待。如: 1. 在come, go, walk, move, fly, ride, drive, march, return 等动词之后通常用介词to 表示目标或目的地。如: He has gone to Shanghai. 他到上海去了。 They walked to a river. 他们走到一条河边。

202X中考英语:to和for的区别与用法.doc

202X中考英语:to和for的区别与用法中考栏目我为考生们整理了“202X中考英语:to和for的区别与用法”,希望能帮到大家,想了解更多考试资讯,本网站的及时更新哦。 202X中考英语:to和for的区别与用法 to和for的区别与用法是什么 一般情况下, to后面常接对象; for后面表示原因与目的为多。 Thank you for helping me. Thanks to all of you. to sb. 表示对某人有直接影响比如,食物对某人好或者不好就用to; for 表示从意义、价值等间接角度来说,例如对某人而言是重要的,就用for. for和to这两个介词,意义丰富,用法复杂。这里仅就它们主要用法进行比较。 1. 表示各种“目的” 1. What do you study English for? 你为什么要学英语? 2. She went to france for holiday. 她到法国度假去了。 3. These books are written for pupils. 这些书是为学生些的。 4. hope for the best, prepare for the worst. 作最好的打算,作最坏的准备。

2.对于 1.She has a liking for painting. 她爱好绘画。 2.She had a natural gift for teaching. 她对教学有天赋。 3.表示赞成同情,用for不用to. 1. Are you for the idea or against it? 你是支持还是反对这个想法? 2. He expresses sympathy for the common people.. 他表现了对普通老百姓的同情。 3. I felt deeply sorry for my friend who was very ill. 4 for表示因为,由于(常有较活译法) 1.Thank you for coming. 谢谢你来。 2. France is famous for its wines. 法国因酒而出名。 5.当事人对某事的主观看法,对于(某人),对?来说(多和形容词连用)用介词to,不用for.. He said that money was not important to him. 他说钱对他并不重要。 To her it was rather unusual. 对她来说这是相当不寻常的。 They are cruel to animals. 他们对动物很残忍。

to of和for的区别

to , of 和for的区别 1.to有到的意思,常常和go,come,get连用引出地点。Go to school , go to the shop , go to the cinema. 常见的短语:the way to 去---的路 On one’s way to 在某人去---的路上 以上的用法中,当地点是副词home,here,there等是to 要去掉。如:get home,the way here To后跟动词原形,是不定式的标志 It is +形容词+(for/of +人+)to do sth.(括号内部分可以省略) It is easy for me to learn English. It is very kind of you to lend me your money. 当形容词表示人的行为特征时用of表示to do的性质时用for Want, hope ,decide, plan , try , fail等词后跟to do I want to join the swimming club. Would like to do I’d like to play basketball with them. It is time to have a break. Next to , close to , from ---to--- 2.for 为,表示目的。 Thank you for Buy sth for sb =buy sb sth It is time for bed. Here is a letter for you.

I will study for our country. 3.of表示所属关系意思是:---的 a map of the world a friend of mine

of和for的用法

for 表原因、目的 of 表从属关系 介词of的用法 (1)所有关系 this is a picture of a classroom (2)部分关系 a piece of paper a cup of tea a glass of water a bottle of milk what kind of football,american of soccer? (3)描写关系 a man of thirty 三十岁的人 a man of shanghai 上海人 (4)承受动作 the exploitation of man by man.人对人的剥削。 (5)同位关系 it was a cold spring morning in the city of london in england. (6)关于,对于 what do you think of chinese food? 你觉得中国食品怎么样? 介词for 的用法小结 1. 表示“当作、作为”。如: i like some bread and milk for breakfast. 我喜欢把面包和牛奶作为早餐。what will we have for supper? 我们晚餐吃什么? 2. 表示理由或原因,意为“因为、由于”。如: thank you for helping me with my english. 谢谢你帮我学习英语。 thank you for your last letter. 谢谢你上次的来信。 thank you for teaching us so well. 感谢你如此尽心地教我们。 3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。如:

介词for和to用法完全归纳

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t o与f o r的用法和区 别 Document number:NOCG-YUNOO-BUYTT-UU986-1986UT

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