however的详细用法
    今日给大家带来however的用法,我们一起来学习吧,下面我就和大家共享,来观赏一下吧。
    however的用法
    1.用作副词
    (1)表示让步:意为“无论如何”“不管怎样”,用来修饰形容词或副词,
    其词序为:however+形容词或副词+主语+谓语。这样用的 however 其实具有连词的功能,用以引导让步状语从句.如:However much he eats,he never gets fat.不管他吃多少,他永久吃不胖。
    用于此用法时,请留意:这样用的 however 与 no matter how 大致同义,如:however [No matter how] hard I worked,she was never satisfied.无论我多么努力地工作,她从来没满足过.
    2、表示转折:尤其用于谈及一个既成事实时,表示转折,其意为“可是”“仍旧”等.可放在句首、
句中或句末,通常用逗号与句子其他成分隔开.如:My father,however,did not agree.但是,我父亲不同意.
    3、表示惊异或强调:相当于how ever的用法,其意为“毕竟怎样,究竟以什么方式”.如:
    However did you get here without a car?没有汽车你毕竟是怎样来的呢?
    but与however的用法区分
    两者均可表示转折或对比,意为“但是”、“可是”、“然而”等,但有区分:
    1. 表示转折时,but 是连词。如:
    He is young but very experienced. 他虽年轻,但阅历很丰富。
    He has three daughters but no sons. 他有3 个女儿,但没有儿子。
    He likes sports, but his wife likes music. 他喜爱运动,而他妻子则喜爱音乐。
    2. however 表示“然而”、“可是”时,有的词书认为它是连词,有的词书认为它是副词。之
所以将其视为副词,或许是由于像很多副词一样不仅能位于句首,而且能位于句中(留意前后使用逗号),甚至句末 (留意其前也用逗号)。如:
    Later, however, he changed his mind. 可是他后来转变了办法。
    He hasn’t arrived. He may, however, come later. 他还没有到,不过他等会儿可能会来。
    He said that it was so; he was mistaken, however. 他说状况如此,可是他错了。
    注:以上各例中的 however 不能换成 but,但可用 but 来改写。如:
    He said that it was so, but he was mistaken. 他说状况如此,可他错了。
    3. 当连接两个句子时,其前通常应用分号,或另起新句。如:
    It’s raining hard; however, I think we should go out. / It’s raining hard. However, I think we should go out. 雨下得很大,但我想我们还得出去。
    注:上例中的 however 不能换成 but,但可用 but 来改写 (留意所用标点的变化)。如:
    It’s raining hard, but I think we should go out.
    让步状语从句中even if 和even though的区分
    even if 和 even though都可以用于状语从句,两者意思相近,所以常常被替换使用,的确利用近义词可以增加句子的词汇丰富度,但是在英语里往往不存在意思完全一样的词,这两个词也有些许微妙的差别,假如用得不合适了,便会给人生硬的感觉,所以这次我就来跟大家一起学习一下这两者的异同·。
    1. even if引导的从句是往往是假设性的,相当于汉语的“即使”“纵然”“就算”“哪怕”,有时还可以用于虚拟语气,意思与if接近。
    eg. They’ll stand by you even if you don’t succeed.
    Even if it rains tomorrow, we won’t change our plan.
    Even if he had the chance, he wouldn’t catch it. (虚拟语气,就算有机会也不会抓住)
    2. even though引导的从句内容往往是真实的,主要用于引出不利用于主句状况的信息,
相当于汉语的“尽管”“虽然”,与 though,although意思接近。
共享汽车怎么用    eg. He went out even though it was raining.
    He is the best student even though he has the least time to study.
    Even though (thought, although)I feet sorry for father, l am secretly pleased that he has the time to play with me.
    3. 在口语中,even if与even though有时也可不加区分地混用。
    eg. Even if (even though) he hurted her, she still loves him.
    We are good friends, even if (even though) we keep some secrets to each other.
    并列连词but的用法归纳
    but 一词既可作连词、介词、副词用,又有一些习惯搭配和固定用法,这里对but做连词用法做一归纳。
    1、表示转折关系,意为“但是,然而,可是”,所连接的成分意思相反或相对,使其前后的词、短语、分句相互对比。例如:
    Our school is small but beautiful.我们学校虽然小但很美丽。(连接两个形容词,意思相对)
    The car is very old but it runs very fast.虽然小汽车旧了,但跑得很快。
    She is young but very experienced. 她虽然年轻但阅历丰富。
    It was a sunny but not very warm day. 那一每天气晴朗,却不太温和。
    He drives not carefully but slowly. 他开车不是很当心,而是开得很慢。
    按英语习惯,表示转折的but不能与表示让步的though或although套用,如:
    他们虽是孪生,但是相貌却完全不同。
    误:Although they are twins, but they look entirely different.
    正:They are twins, but they look entirely different.
    正:Although they are twins, they look entirely different.
    2、并列连词but用于not…but结构,意为“不是……而是”。例如:
    What I want is not this one, but that one. 我想要的不是这个,而是那个。
    Bamboo is not a tree, but a kind of grass. 竹不是一种树,而是一种草。
    Travel to the moon is not a dream but an actual happening. 登月旅行已不是幻想而是现实事情了。