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根据句意，用所给动词的适当形式填空。1. Why not _________ (go) out for a walk, Linda?2. Our teachers often encourage us _________ (ask) questions in class.3.-八年级英语
[db:作者]  2020-01-04 00:00:00  零零社区

题文

根据句意，用所给动词的适当形式填空。
1. Why not _________ (go) out for a walk, Linda?
2. Our teachers often encourage us _________ (ask) questions in class.
3. He _________ (see) the film twice already.
4. The students will go to the Summer Palace if it _________ (not rain) tomorrow.
5. Talking loudly in public is not _________. (allow)
题型：填空题  难度：中档

答案

1. go   2. to ask   3. has seen   4. doesn't rain   5. allowed

据专家权威分析，试题“根据句意，用所给动词的适当形式填空。1. Why not _________ (g..”主要考查你对  实义动词，不定式，分词，现在完成时，状语从句  等考点的理解。关于这些考点的“档案”如下：

实义动词不定式分词现在完成时状语从句

考点名称：实义动词

  • 实意动词：
    即行为动词，表示动作的动词。实义动词与系动词是相对的，能独立用作谓语。
    它分为及物动词和不及物动词两种：
    及物动词是指后面要求有直接宾语的动词；
    不及物动词指后面不需要跟宾语的动词。

  • 实意动词使用方法：
    及物动词
    后面必须跟宾语意义才完整的实义动词，叫做及物动词(transitive verb)。如：
    I believe that the committee will consider our suggestion.我相信委员会将会考虑我们的建议。
    “How long can I keep the book ?”Harry asked.哈里问：“这本书我可以借多久?”
    Dr. Bethune set us a good example. 白求恩大夫给我们树立了好榜样。
    Crude oil contains many useful substances.原油含有许多有用的物质。

    不及物动词
    本身意义完整后面不须跟宾语的实义动词，叫做不及物动词(intransitive verb)。如：
    Birds fly.鸟会飞。
    It happened in June 1932.这件事发生于一九三二年六月。
    My watch stopped.我的表停了。
    She spoke at the meeting yesterday evening. 她在昨天晚上的会上发了言。

    兼作及物动词和不及物动词
    英语里有不少实义动词可以兼作及物动词和不及物动词。这样的动词又有两种不同的情况
    a)兼作及物动词和不及物动词时，意义不变。试比较：
    Shall I begin at once?我可以立刻开始吗?(begin作不及物动词)
    She began working as a librarian after she left school.她毕业后当图书馆管理员。(began作及物动词)
    When did they leave Chicago?他们是什么时候离开芝加哥的？(leave 作及物动词)
    They left last week. 他们是上周离开的。(left 作不及物动词)
    b)兼作及物动词和不及物动词时，有时意义不尽相同。如：
    Wash your hands before meals.饭前要洗手。
    Does this cloth wash well? 这布经得起洗吗?

  • 英汉实意动词用法比较：
    与汉语的比较，有时英语动词的及物和不及物的用法，与汉语的用法不一样，请注意下列两种情况：
    a)有的动词在英语里只能用作不及物动词，而汉语则可用作及物动词，如arrive到达，agree同意，listen听。英语里这些动词后面常接介词。如：
    We arrived at the railway station at noon.
    我们于中午到达火车站。(at不能省去)
    (比较：We reached the railway station at noon.)
    Everybody listened to the lecture with great interest.
    每个人都很有兴趣地听讲课。(to不可省去)
    (比较：We all heard the lecture.)
    Do they agree to the plan?他们同意这个计划吗?(to不可省去)

    b)有的动词在英语里能用作及物动词，而在汉语里则不能用作及物动词，如serve为…服务。
    Our children are taught to serve the people wholeheartedly.
    我们的儿童被教以全心全意为人民服务
    用于be动词之后，实义动词之前。

  •  实意动词的用法：
    肯定句：
    主语+动词过去式+其它
    否定句：
    主语+助动词didn‘t+动词原型+其他
    一般过去式：
    Did+主语+动词原型+其他

考点名称：不定式

  • 动词不定式：
    指由to加上动词原形（而且只能是动词原形）所构成的一种非限定性动词，但在有些情况下to可以省略。
    动词不定式在语法功能上可作主语、宾语、宾语补足语、表语、定语和状语。

  • 动词不定式可以作以上各种成分，但它毕竟是动词，所以有动词的属性。
    动词不定式及其短语还可以有自己的宾语、状语，虽然动词不定式在语法上没有表面上的直接主语，但它表达的意义是动作，这一动作一定由使动者发出。
    这一使动者我们称之为逻辑主语，其形式如下：
    时态 主动形式  被动形式 
    一般式 (not) to do (not) to be done
    完成式 (not) to have done (not) to have been done
    进行式 (not) to be doing  
    完成进行式 (not) to have been doing  

  • 不定式的用法:
    1、不定式作主语
    例如：To remember this is very important.
    注意：为了避免头重脚轻，在许多情况下，通常都将作主语的不定式置于句子后部，而在句首主语位置使用形式主语it。
    例如：It is very important to remember this.
    2、不定式作表语
    例如：He seems to be ill.
    注意：不定式作表语主要有三种情况，一是用于seem, appear, prove等系动词之后的不 定式（尤其是to be），
    二是像My job is to sweep the floor. 这样的主语与表语“等价”的情形，
    三是表示想法、约定、义务、命令、可能性、命运等，如： 
    You are to come when I call.
    3、不定式作宾语
    例如：I can not afford to buy a car.
    注意：
    ①不定式不仅用作动词的宾语，还可用作个别介词（but, except）的宾语。
    例如：I had no choice but to wait.
    ②当作宾语的不定式后跟有宾语补足语时，通常要用形式宾语it代替不定式，并将真正的宾语不定式置于宾语补足语之后
    例如：I find it difficult to learn Japanese well.
    4、不定式作宾语补足语
    例如：Who taught you to drive?
    5、不定式作定语
    例如：I have a question to ask you.
    注意：有的名词（如way, chance, right等）后用作不定式可换成of doing sth.
    如：It is the best way to do (of doing) it.
    但是以下名词后接不定式作定语时通常不能换成of doing sth.
    attempt  courage  decision  effort  fortune  failure  invitation  wish
    6、不定式作状语
    例如：I went to France to learn French.

考点名称：分词

  • 分词：
    就是具有动词及形容词二者特征的词；尤指以-ing或-ed,-d,-t,-en或-n结尾的英语动词性形容词，具有形容词功能，同时又表现各种动词性特点，
    如时态,语态、带状语性修饰语的性能及带宾语的性能。
    分词分为现在分词和过去分词两种，是一种非谓语动词形式。
    现在分词和过去分词主要差别在于：
    现在分词表示"主动和进行"，过去分词表示"被动和完成"(不及物动词的过去分词不表示被动，只表示完成)。
    分词可以有自己的状语、宾语或逻辑主语等。

  • 现在分词构成形式：
    ①一般在动词原形末尾加ing，如do→doing、sing→singing、comfort→comforting
    ②以不发音的e、ue结尾的动词，先去e，再加ing，如dance→dancing、hike→hiking、write→writing、make→ making,take→taking
    ③以ee、oe、ye结尾的动词加ing，如see→seeing、toe→toeing、dye→dyeing
    ④以重读闭音节结尾的动词，并且末尾只有一个辅音字母，应双写这一字母，再加ing，如cut→cutting、swim→swimming
    注：结尾是x则不必双写，如relax→relaxing
    ⑤以ie结尾的动词，要把ie变成y再加ing，如die→dying，lie→lying.
    ⑥以ic结尾的动词，要把ic变成ick再加ing，如picnic→picnicking，traffic→trafficking

    过去分词构成形式：
    1．规则动词：规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则：
    (1)、一般动词，在词尾直接加“ ed ”。（然而要注意的是，过去分词并不是过去式）
    work---worked---worked ,  visit---visited---visited
    (2)、以不发音的“ e ” 结尾的动词，只在词尾加“ d ”。
    live---lived---lived
    (3)、以“辅音字母 + y ”结尾的动词，将 "y" 变为 "i" ，再加“ ed ”。
    study---studied---studied,cry---cried---cried,try---tried---tried,fry---fried---fried.[1]
    (4)、重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。
    stop---stopped---stopped  ,  drop---dropped--dropped
    (5)、以ic结尾的动词，要把ic变成ick再加ed，
    picnic→picnicked  ，traffic→trafficked
    2 、不规则动词：见不规则动词表

  • 分词用法：
    1、分词作状语 　　
    分词在句子中作状语，可以表示时间、条件、原因、结果、让步、伴随等。 　　
    分词（短语）作状语时，其逻辑主语应与句中主语相一致。
    当现在分词表示的动作发 生在谓语动词之前时, 则用现在分词的完成式,且所表示动作与谓语动作同时发生, 则用现在分词的一般式。
    完成或被动关系用过去分词。 　　
    ①现在分词：
    The students went out of the classroom, laughing and talking. 　　
    ②过去分词：
    Accompanied by his friend, he went to the railway station. 
    Given   better attention, the plants could grow better. 　　

    2、“while ( when, once, until, if , though等连词)＋分词”结构 　　
    现在分词或过去分词作状语时，有时可以在分词前加while，when, once, although, until, if等连词。 　　
    ①现在分词：
    When leaving the airport, she waved again and again to us.
    While waiting for  the train, I had a long talk with my sister about her work…… 　　
    ②过去分词：
    Once recovered, he threw himself into his work and made every effort to do it  well. 　　
    Although working very hard, he failed to pass the final exam. If translated word by word, the passage will be difficult to understand. 　　

    3、分词作定语 　　
    分词作定语时，单个的分词通常放在被修饰的名词之前，分词短语一般置于所修饰的中心词后面。
    现在分词修饰的是发出该动作的名词(即与名词有主谓关系)，过去分词修饰承受该动作的名词(即与名词是动宾关系)。 　　 
    We will go on with our experiment as soon as we get the added fund. 　　 
    This is really an exhausting day to all of us! 　　
    We can see the part of the moon lighted by sunlight. 　　
    After a night spent in excitement and sleeplessness, I forced myself to take a long walk along the beach the next day. 　　
    More and more developing countries established strategic partnership with  developed countries 　　

    4、分词作宾语补足语 　　
    现在分词在see, watch, hear, observe, notice, feel, find, glimpse, glance等感官动词和look at, listen to等短语动词以及
    have, keep, get, catch, leave, set, start, send等使役动词后面与名词或代词构成复合宾语，作宾语补语的成分。
    例：I see him passing my house every day.
    I caught him stealing things in that shop.
    I smelt something burning.

    5、分词作表语
    分词作表语通常看作形容词来用。
    过去分词表示主语的感受或状态，主语多为人。现在分词表示主语的性质，而且主语多为物；
    ①过去分词：
    We were so bored that we couldn’t help yawning.
    She felt confused, and even frightened.
    ②现在分词：
    He was very amusing.
    That book was rather boring.
    很多动词的现在分词都可以作表语：
    exciting, interesting, encouraging, disappointing, confusing, touching, puzzling.

考点名称：现在完成时

  • 现在完成时:
    过去发生并且已经完成的动作对现在造成影响或后果，过去某一时间开始并一直持续到现在的动作或状态。
    基本结构：主语+have/has+动词的过去分词
    句式：
    1. 否定句式：现在完成时的否定句式是“haven't （hasn't）＋过去分词...”。
    如：I have not seen the movie yet. 我还没看这部电影。
    2. 一般疑问句：Have（Has）+主语+过去分词...？ 如：
    —Have you finished the work？你已经做完这项工作了吗？
    —Yes, I have. 是的，我已经做完了。（No, I haven't. 不，我还没有做完。）
    3. 特殊疑问句：特殊疑问词+have（has）+主语+过去分词...？如：
    How many times have you been to the Great Wall？你去过长城几次？
    提示：肯定句中有some, already时，改为否定句或疑问句时通常要分别改为any, yet。如：
    I have already finished my homework. 我已经完成了我的作业。
    → I haven't finished my homework yet. （否定句）
    → Have you finished your homework yet? （一般疑问句)
    现在完成时常见两种句型：
    ①for短语
    ②It is＋一段时间＋ since从句

  • 现在完成时特点：
    1. 非持续性动词的完成时的肯定式不能与时间段连用，若要用时间段状语，则应换成相应的持续性动词或状态动词。
    例如：
    He has left.
    He has been away for an hour.
    2. have/has been to 表示曾经去过某地，但现在不在那；have/has gone to表示现在已去某地，现在不在这。
    例如：
    He has been to Canada, but now he is working in our company.
    Mr. Li in not at home. He has gone to Shanghai.
    3. 完成时的肯定式常用already,而否定式和疑问式常用yet，但若already用于疑问句时，表示一种出乎意外的惊讶。
    例如：Have you read it already?

  • 现在完成时和一般过去时区别:
    现在完成时和一般过去时都表示在过去完成的动作。
    但现在完成时强调的是这一动作与现在的关系。如对现在产生的结果或影响等，
    而一般过去时只表示动作在过去某一时刻发生，不表示和现在的关系。
    比较:
    I have lost my new book.  我把新书丢了。（现在还未找到）
    I lost my new book yesterday. 我昨天把新书丢了。（昨天丢的，现在找到与否没说明）

    have been(to)与have gone( to)的区别：
    have been(to)表示“去过某地（现在已经回来了）”，可用于各人称；
    have gone(to)表示“去某地了（说话时某人不在当地）”，常用于第三人称，
    前者可与once ,never,several times等连用，后者则不能。
    如：
    They have been to Beijing twice.他们去过北京两次。
    He has gone to Beijing .  他去北京了。

    现在完成时注意事项:
    1.如单纯表示一段时间，或强调一段时间，虽有since一词，也不必用完成时。如：
    It is two years since his father died. =His father has been dead for two years.他父亲去世已有三年了。

    2.终止性动词现在完成时的否定式，已变成一种可以延续的状态，因此可以和表示一段时间的状语连用。如：
    I haven't left here since 1997.自从1997年以来，我一直没有离开过这儿。

    3..现在完成时不能单独与准确时间连用，（如表示过去的时间状语）
    如:yesterday(morning、afternoon),last(morning、afternoon）等，除非与for,since连用.

    4.不能与when连用.

  • 现在完成时的用法：
    1.表示动作发生在过去某个不确定的时间，但对现在留下了某种影响和结果。常被just、already、yet 等副词修饰。如：
    -Have you had lunch yet?    
    -Yes,I have. I've just had it.
    2.表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止，可能仍然在进行。
    常带有for和since等表示一段时间的状语。如：
    He has taught here since 1981
    他自1981年就在这儿教书。（可能还要继续教）
    I have't seen her for four years.
    我有四年没见到她了。
    3.表示说话前发生过一次或多次的动作，现在成为一种经验，一般译为汉语“过”。
    常与twice,ever,never,three times等时间状语。 如：
    I have been to Beijing twice.我去过北京

    4. 现在完成时还往往可以同包括现在时间在内的时间状语连用，如：
    now,up to these few days/weeks/months/years,this morning/week/month/year,just,today,up to present,so far等：
    Peter has written six papers so far.
    Man has now learned to release energy from the nucleus of the atom.
    There has been too much rain in San Francisco this year.
    The friendly relations and cooperation between our two countries have been enhanced in the past few years.
    Up to the present everything has been successful.

    5.现在完成时往往同表示不确定的过去时间状语连用，如：
    already（肯定），yet（否定，疑问），just,before,recently,still,lately,never等：
    He has already obtained a scholarship.
    I haven't seen much of him recently (lately).
    We have seen that film before.
    Have they found the missing child yet?

    6.现在完成时的"完成用法"
    现在完成时的"完成用法"指的是动作发生在过去某一时刻并已结束，但该动作对现在产生了影响，与现在情况具有因果关系。
    例如：
    He has turned off the light.他已把灯关了。（动作结束于过去，但说明的是现在的情况--灯现在不亮了。）
    现在完成时"完成用法"的特点是动作不延续，因此：
    该时态只能与表示不定的过去时间状语（如：already，yet，before，recently等）、频度时间状语（如：never，ever，once等）、包括现在时刻在内的时间状语（如：this morning / month /year...，today等）连用。
    例如：Have you found your pen yet？你已找到你的钢笔了吗？
    7.现在完成时的"未完成用法"
    现在完成时的"未完成用法"指的是动作开始于过去某一时刻，一直延续到现在，或可能还要继续下去。
    例如：
    He has lived here since 1978.自从1978年以来，他一直住在这儿。
    （动作起始于1978年，一直住到现在，可能还要继续住下去。）
    I have been in the army for more than 5 years.我在部队已经呆了五年多了。
    （动作开始于5年前，一直延续至今，有可能还要继续下去。）
    此种用法的句中常需一个表示一段时间的状语（由since或for引导），或表示与现在时刻相连的时间状语（如：up to now，so far）等。
    例如：
    I have heard nothing from him up to now.到目前为止我没有他的任何消息。
    注意：现在完成时的未完成用法只适用于延续性动词，不可用于终止性动词，即瞬间完成或延续时间很短的动词。
    如：come，go，arrive，leave，join，become，die等。
    8.一段时间+has passed+since从句
    主语＋have / has been＋since短语
    例如：He has been in the League for three years.
    或It is three years since he joined the League. 他入团已三年了　　
    9. 现在完成时常和短语 "up to now /till now","so far" （意思是从过去某一确定的时间一直延续到现在)连用。　　
    Up to/till now he's read many story books. 至今他已读过好多故事书。
    I've been to New York three times so far. 至今我已到纽约去过三次。
    has gone (to),has been (to),has been (in) 的区别
    has gone to：去了没回
    has been to ：去过
    has been in：呆了很久

考点名称：状语从句

  • 状语从句：
    指句子用作状语时，起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或整个句子。
    根据其作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句。
    状语从句一般由连词(从属连词)引导，也可以由词组引起。
    从句位于句首或句中时通常用逗号与主句隔开，位于句尾时可以不用逗号隔开。

  • 状语从句分类:
    1、时间状语从句
    常用引导词：
    when, as, while, as soon as, while, before, after, since , till, until
    特殊引导词：
    the minute, the moment, the second, every time, the day,the instant, immediately , directly, no sooner … than, hardly …when, scarcely … when
    I didn't realize how special my mother was until I became an adult.
    While John was watching TV, his wife was cooking.
    The children ran away from the orchard(果园) the moment they saw the guard.
    No sooner had I arrived home than it began to rain.
    Every time I listen to your advice, I get into trouble.

    2、地点状语从句
    常用引导词：
    where
    特殊引导词：
    wherever, anywhere, everywhere
    Generally, air will be heavily polluted where there are factories.
    Wherever you go, you should work hard.

    3、原因状语从句
    常用引导词：
    because, since, as, for
    特殊引导词：
    seeing that, now that, in that, considering that, given that, considering that, as much as, so much as
    My friends dislike me because I'm handsome and successful.
    Now that everybody has come, let's begin our conference.
    The higher income tax is harmful in that it may discourage people from trying to earn more.
    Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.

    4、目的状语从句
    常用引导词：
    so that, in order that
    特殊引导词：
    lest, in case, for fear that,in the hope that, for the purpose that, to the end that
    The boss asked the secretary to hurry up with the letters so that he could sign them.
    The teacher raised his voice on purpose that the students in the back could hear more clearly.

    5、结果状语从句
    常用引导词：
    so that, so… that, such … that,
    特殊引导词：
    such that, to the degree that, to the extent that, to such a degree that,
    He got up so early that he caught the first bus.
    It's such a good chance that we must not miss it.
    To such an degree was he excited that he couldn't sleep last night.

    6、条件状语从句
    常用引导词：
    if, unless,
    特殊引导词：
    as/so long as, only if, providing/provided that, suppose that, in case that, on condition that
    We'll start our project if the president agrees.
    You will certainly succeed so long as you keep on trying.
    Provided that there is no opposition, we shall hold the meeting here.

    7、让步状语从句
    常用引导词：
    though, although, even if, even though
    特殊引导词：
    as(用在让步状语从句中必须要倒装),while ( 一般用在句首 ),no matter …, in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whichever
    Much as I respect him, I can't agree to his proposal.
    尽管我很尊敬他, 我却不同意他的建议。
    The old man always enjoys swimming even though the weather is rough.
    No matter how hard he tried, she could not change her mind.
    He won't listen whatever you may say.

    8、比较状语从句
    常用引导词：
    as(同级比较), than(不同程度的比较)
    特殊引导词：
    the more … the more … ; just as …, so…; A is to B what /as X is to Y; no … more than; not A so much as B
    She is as bad-tempered as her mother.
    The house is three times as big as ours.
    The more you exercise, the healthier you will be.
    Food is to men what oil is to machine. 食物之于人,犹如油之于机器。

    9、方式状语从句
    常用引导词：
    as, as if, how
    特殊引导词：
    the way
    When in Rome, do as the Roman do.
    She behaved as if she were the boss.
    Sometimes we teach our children the way our parents have taught us.

  • 状语从句用法:
    时间状语从句
    (1) when引导的时间状语从句
    ①.when引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词，而且可以表示主句的动作和从句的动作同时发生，或者从句的动作发生在主句的动作之前。如：
    when you apply for a job, you must present your credentials.
    当你申请工作时，你必须递交你的有关证件。（同时）
    when the students heard the teacher’s footsteps, they all atopped talking.
    当学生们听到老师的脚步声时，他们都停止了讲话。（从句动作发生在前）
    ② when还可表示just then（正在那时，突然）的意思，此时其所引导的从句只放在主句之后。如：
    we were about to start when it began to rain.
    我们正要动身，突然天下起雨来。
    The game had hardly/scarcely/barely begun when it started raining.
    比赛刚刚开始就下起雨来。
    (2) as引导的时间状语从句
    as引导的时间状语从句其动词的动作是延续性的，而且侧重表示主句和从句的动作并相发生：
    We were having breakfast as she was combing her hair.
    她梳头时我们在吃早饭。
    It will warm up a little bit on Sunday as the cold front passes.
    寒流一过，星期日就会有点暖意了。
    (3) while引导的时间状语从句
    while表示“在某一段时间里”或“在……期间”，其所引导的从句的动作是延续性的，并侧重表示和主句的动作同时发生。如：
    When the teacher paraphrased the text in English, the students listened attentively and took notes.
    当老师用英语解释课文时，学生们聚精会神地听并做着笔记。
    I can learn while I work.
    我可以边工作边学习。
    (4) before引导的时间状语从句
    ① before“在……之前”
    I have finished my dissertation before my supervisor went abroad.
    在我的导师出国之前，我已完成了我的学位论文。
    I’ll be back before you have left.
    你离开之前我就会回来。
    ② before“……之后才”
    It may be many years before we meet again.
    可能要过许多年我们才能再见了。
    It was three days before I came back.
    他三天后才回来。
    (5) as soon as/once/directly/the instant等引导的时间状语从句
    as soon as 是最常见的表示“一……就”的从属连词，其他连词还有once，directly，immediately，instantly，the instant (that)，the minute(that) ，the moment(that)等，它们通常都可与as soon as换用。如：
    As soon as we got home, the telephone rang.
    我们一到家，电话就响了。
    I recognized her immediately I saw her.
    我一看见她就认出她来了。
    Directly the teacher came in everyone was quiet.
    老师一进来，大家就静了下来。
    (6) hardly...when/no sooner...than引导的时间状语从句
    关联从属连词hardly/barely/scarcely...when和no sooner...than的意思是“刚……就”，它们所引导的从句中的谓语动词通常为过去完成时。如：
    He had no sooner (no sooner had he)arrived home than he was asked to start on another journey.
    他刚一到家，就又要他出另一次差。
    No sooner had the words been spoken than he realized that he should have remained silent.
    这些话刚一出口，他就意识到自己应该保持沉默。
    (7) since引导的时间状语从句
    在含有since引导的时间状语从句的复合句中，从句的谓语动词通常为一般过去时，主句的谓语动词通常为现在完成时、过去完成时和一般现在时：
    We’ve never met since we graduated from the college.
    大学毕业后我们就再没见过面。
    Great changes have taken place since you left.
    你走了以后，这里发生了巨大变化。
    (8) till/until引导的时间状语从句 till和until同义，作“直到……时(为止)”解，till多用于非正式文体，until多用于句首。如：
    Donald will remain in college until(till) he finishes his Ph.D course.
    唐纳德将留在学校直到完成他的博士学位课程。
    I won’t go with you until(till) I finished my homework.
    等我做完作业我才和你一起去。
    (9) whenever/each time/every time引导的时间状语从句
    whenever在引导时间状语从句时作“每当；每次”解，each time和every time与whenever同义，通常可以与它换用。如：
    The roof leaks whenever it rains.
    每逢下雨屋顶就漏雨。
    Whenever certain chemicals are mixed together，heat is produced.
    某些化学物质被混到一起时，就会产生热。
    Whenever/ Every time/ Each time I met her, she was studying.
    我每次看见她时，她总是在学习。

    状语从句 - 地点状语从句
    (1) when引导的时间状语从句
    从属连词where“在（或到）……的地方”
    Where there is a will, there is a way.
    有志者事竟成。
    Put it where you found it.
    把它放在原来的地方。
    ① where 在地点状语从句中，除指地点外，还可指处境等。如：
    He said he was happy where he was.
    他说他对自己的处境很满意。
    It’s your fault that she is where she is.
    她今天落到这个地步都怪你。
    ② 有时地点状语从句中的某些词可以省略。如：
    Fill in the blanks with the given phrases. Change the form where necessary.
    用所给的短语填空，必要的地方可以改变其形式。
    Avoid structure of this kind where possible.
    只要可能，就要避免这种结构。
    (2) wherever引导的地点状语从句
    从属连词wherever“在（或到）……的各个地方”：
    You can go wherever(anywhere) you like these days.
    这些天你可以去你想去的地方。
    Where (Everywhere) they went, the experts were warmly welcomed.
    专家每到一处， 都受到热烈的欢迎。
    Sit down wherever you like.
    你喜欢坐哪儿就坐哪儿。

    状语从句 - 原因状语从句
     (1) because引导的原因状语从句
    because表示人们不知道的直接的原因或理由，着重点在从句，其所引导的从句，为全句句意的中心所在。
    通常用于回答why引出的疑问句，语气最强，除特别强调外，该从句一般位于主句后面。
    I didn’t go abrord with her because I couldn’t afford it.
    我没有和她一起出国是因为费用太高。
    Don’t scamp your work because you are pressed for time.
    不要因为时间仓促而马马虎虎。
    (2) as引导的原因状语从句
    as引导的原因状语从句所传递的通常是已知信息，从句多位于主句之前，通常可以和since换用。如：
    As I didn’t know the way，I asked a policeman.
    我不认识路，因而问警察。
    As it is snowing, we shall not climb the mountain.
    由于在下雪，我们不去爬山了。
    (3) since引导的原因状语从句
    since引导的原因状语从句所传递的通常是已知信息，从句多位于主句之前，通常可以和as换用。如：
    Since traveling by air is much faster,they decided to take a plane.
    既然乘飞机旅行快得多，他们就决定坐飞机。
    Since you won’t help me ，I’ll ask someone else.
    你既然不帮我，那我就请别人帮忙。
    (4) now(that)引导的原因状语从句
    now(that)“因为；既然”，通常可以和since换用。其中that可省去，用来表示一种新的情况，再加以推论。如：
    Now(that) you?蒺ve passed your test you can drive on your own.
    你既已考试合格，就可以独自开车了。
    I do remember，now (that) you mention it.
    你这一提，我倒的确想起来了。
    (5) seeing (that)引导的原因状语从句
    Seeing (that)“鉴于；由于”，通常用于非正式文体。如：
    Seeing (that) the weather is bad，we’ll stay at home.
    天气不好，我们还是呆在家里吧。
    Seeing that he’ s ill，he’s unlikely to come.
    (6) in that引导的原因状语从句
    in that“因为；基于……的理由”，可以和because换用，多用于正式文体，它所引导的原因状语从句总是位于主句之后。如：
    Advertisement is distinguished from other forms of communication in that the advertiser pays for the message to be delivered.
    广告不同于其他交际形式，因为登广告的人要为其所提供的信息付费。
    I’m in a slightly awkward position, in that he’s not arriving until 10th.
    我的处境有点难堪，因为他要十号才来。

    状语从句 - 目的状语从句
     (1) in order that引导的目的状语从句
    in order that“为了；以便”。多用于正式文体，通常可以与so that换用。如：
    You stopped at Hangzhou in order that they could go around West Lake.
    他们在杭州停了下来，以便游览西湖。
    The expert spoke slowly in order that everyone should understand.
    专家讲得很慢，以便人人听得懂。
    (2) so (that)引导的目的状语从句
    so that“为了；以便”。so that通常可以与in order that换用，它所引导的目的状语从句总是放在主句之后，在非正式文体中，常省略that。如：
    Speak clearly so that they may understand you.
    你要讲得清楚，他们才听得懂。
    She wanted tea ready at seven so she could be out by eight.
    她要七点钟备好茶点，这样她八点以前就可以出门了。
    (3) in case/for fear (that)/lest等引导的目的状语从句
    in case，for fear(that)和lest这三个从属连词都表示否定目的，意思是“以免”,“以防”。
    in case多用于英国英语，它所引导的从句中的谓语动词可以是陈述语气形式，也可以是虚拟语气形式；
    for fear(that)引导的从句中的谓语带有may，might，should等情态动词；
    lest用于正式文体，它所引导的从句中的谓语动词用虚拟语气形式。如：
    Take your umbrella with you，lest it should rain.
    带上你的伞，以防下雨。
    Take your umbrella in case it rains.
    带上你的伞，以防下雨。
    He took an umbrella with him for fear that it might rain.
    他带了一把伞，以防下雨。
    状语从句 - 结果状语从句
    (1) so that引导的结果状语从句
    ① so that引导的结果状语从句只能位于主句之后，中间可以有逗号。如：
    Suddenly it began to rain heavily，so that it was almost impossible to carry on driving.
    突然下起了大雨，几乎无法继续开车。
    Linda phoned me in on arrival so that I know she was safe and sound.
    琳达到达后给我打了电话，因而我知道她平安无事。
    ②“so that”既可引导结果状语从句也可引导目的状语从句。
    究竟是引导的结果状语从句还是目的状语从句，除了根据句意来判断外，还可根据结构形式来加以判断。
    若从句前有逗号，一般为结果状语从句，如果从句中有情态动词，通常则为目的状语从句。如：
    They started out early, so that they didn’t miss the train.
    他们早早就出发了，所以没误火车。(结果状语从句)
    They started out early so that they would not miss the train.
    他们早早出发是为了不误火车。(目的状语从句)
    (2) so...that引导的结果状语从句
    so...that“如此……以致”，that在非正式文体中可以省略，so后面接形容词或副词。如：
    She spoke so fast that nobody could catch what she was saying.
    她说话如此之快竟没有人听出来她在讲什么。
    There is so little time left that I have to tell you about it latter.
    现在剩下的时间不多了，我只好以后再给你讲这件事。
    (3) such...that引导的结果状语从句
    引导结果状语从句的such...that的具体内容是：such+a/an+形容词+名词+that从句。
    其中的名词可以是可数名词的单数或复数，也可以是不可数名词。
    such+a/an+形容词+单数名词+that从句可换成so+形容词+a/an+单数名词+that从句。如：
    The Japanese student made such rapid progress that he soon began to write article in Chinese.
    那个日本留学生进步很快，不久就开始用中文写文章了。
    The professor told us such a funny story that all the students laughed．
    (＝The professor told us so funny a story that all the students laughed.)
    教授讲了个很有趣的故事，(以致于)所有的学生都笑了起来。
    (4) such that引导的结果状语从句
    such that引导的结果状语从句多用于正式文体，主句为“主—系—表”句型。如：
    The force of the explosion was such that it blew out all the windows.
    爆炸的力量很大，所有的窗户都被炸掉了。
    His anger was such that he lost control of himself.
    他气得不能克制自己的感情。

    状语从句 - 条件状语从句 
    (1) if引导的条件状语从句
    if可引导非真实条件状语从句(见“虚拟语气”)和真实条件状语从句。如：
    If he said that，he can’t be telling the truth.
    如果他说了那样的话，他不可能是说实话。
    (2) unless引导的条件状语从句
    unless引导的是否定条件状语从句，在意义上相当于if...not，而且语气较强，一般不用于虚拟语气。如：
    You’ll be late unless you hurry.
    你会迟到的，如果不赶快的话。
    (3) if only引导的条件状语从句
    if only在引导条件状语从句时意为“只要；如果”。如:
    I’ll let you use the car if only you keep it in good condition.
    只要你把车保养好，我就让你用。
    (4) as/so long as引导的条件状语从句
    as/so long as意为“只要；如果”。如：
    As long as it doesn’t rain, we can play.
    只要不下雨我们就能玩。
    (5) provided (that)/providing (that)引导的条件状语从句
    provided (that)/providing (that)意为“如果；只要”。如：
    I will agree to go provided’ providing (that my expense are paid.)
    假如为我负担费用，我就同意去。
    Providing you promise not to tell anyone else I’ll explain the secret.
    状语从句 - 让步状语从句
    (1) although/though引导的让步状语从句
    although和though，都作“虽然；尽管”解，通常可以换用，although的语气较重。
    如果要强调“但是”语气，可使用yet，still或nevertheless来表示“但是”、“依然”或“然而”之意。
    Although they have been talking for a long time, he cannot make her believe him.
    虽然和她谈了半天，他还是不能让她信任自己。
    (2) even if引导的让步状语从句
    even if “即使，纵然”，从句表示的是尚未发生的动作或存在的情况。如：
    Even if it rains tomorrow，we won’t change our plan.
    即使明天下雨，我们也决不改变计划。
    Even if I failed again, I will not give up the experiment.
    即使我再次失败，我也决不会放弃实验。
    (3) even though引导的让步状语从句
    even though“虽然，尽管”，从句所表示的是已经发生的动作或存在的情况，通常可以和although/though换用。如：
    Even though I didn’t understand a word，I kept smiling.
    即使我一个字也不懂，我还是保持微笑。
    Even though you say so，I do not believe it.
    即使你这样说，我也不信。
    (4) much as引导的让步状语从句
    much as“虽然，尽管”，通常可以和although/though换用：
    Much as I’d like to，I can’t come.
    我虽然很想来，但是来不了。
    Much as I admire his courage，I don’t think he acted wisely.
    我虽然佩服他的勇气，但我认为他这样做是不聪明的。
    (5) while引导的让步状语从句
    while“虽然，尽管”，多用于正式文体，通常可换作although/though。如：
    While I understand your point of view，I do not share it.
    我虽了解你的观点，但不敢苟同。
    While I sympathize，I really can’t do very much to help.
    虽然我很同情，但我确实帮不了什么忙。
    (6) whatever/No matter what引导的让步状语从句
    whatever和no matter what用法相同，都作“无论什么”解，后者多用于非正式文体。如：
    Whatever/No matter what he says，don’t go.
    不管他说什么，你都不要走。
    We are determined to fulfill the task，whatever/no matter what happens.
    不管发生什么了，我们决心完成任务。
    (7) whichever/no matter which引导的让步状语从句
    whichever和no matter which用法相同，都作“无论哪个”解，后者多用于非正式文体。如：
    Whichever/No matter which you buy， there is a six-month guarantee.
    不论你买哪个，都有六个月的保修期。
    Whichever/No matter which of the two men had stolen her purseBarbara was determined to find them.
    不管这两个人是谁偷了她的钱包，芭芭拉决心找到他们。
    (8) whoever/no matter who引导的让步状语从句
    whoever和no matter who用法相同，都作“无论谁”解，后者多用于非正式文体。如：
    You can’t come in， whoever you are.
    不管你是谁，都不能进来。
    Whoever/No matter who wants to speak to me on the phone, tell him I’m busy.
    不管谁要我接电话， 就说我现在正忙着呢。
    (9) whereverno matter where引导的让步状语从句
    wherever和no matter where用法相同，都作“无论在（或到）哪里”解，后者多用于非正式文体。如：
    Wherever/No matter where you go, I’m Right Here Waiting fo ryou.
    无论你到哪里，我都依然在这里等着你。
    (10) however/no matter how引导的让步状语从句
    however和no matter how用法相同，都作“无论如何……”解，后者多用于非正式文体。
    However much you regret doing that， there is nothing you can do about it now.
    无论你可能多么懊悔你曾经做过的事，现在也无济于事了。
    However high it may be，it can’t reach the sky.
    它不论有多高，也高不到天上去。
    (11) whenever/no matter when引导的让步状语从句
    whenever和no matter when用法相同，都作“无论何时”解，后者多用于非正式文体。如：
    Whenever I’m unhappy，he cheers me up.
    每当我不高兴时，他就给我鼓劲儿。
    (12)(no matter) whether...or引导的让步状语从句
    whether...or和no matter whether...or用法相同，都作“不论……还是”解，后者的语气强一些。如：
    When It Rains or not, we’re playing football on Sunday.
    无论下不下雨，我们星期天一定踢足球。
    (13) as引导的让步状语从句
    as在引导让步状语从句时作“虽然；尽管”和“即使”解，但是它不位于句首，在它前面的可以是形容词、名词、副词等。如：
    Strong as you maybe, you cannot lift it.
    虽然你可能很有力气，你却无法把它提起来。
    Late as it was, they continued to study.
    时间尽管不早了，他们仍继续学习。

    状语从句 - 方式状语从句
    (1) as引导的方式状语从句
    as在引导方式状语从句时意为“以……方式；如同……那样”，从句有时是省略句。如：
    Do as I say. 要照我说的做。
    I did just as you told me. 我正是照你说的办的。
    Air is to man as water is to fish. 空气之于人犹如水之于鱼。
    (2) as if/as though引导的方式状语从句
    as if和as though的用法相同，都作“好像，仿佛”解。如：
    二者引导的状语从句往往用虚拟语气，表示与事实相反。as if比as though更为常用。
    但也可用陈述语气，表示所说的情况是事实或实现的可能性较大。如：
    They looked at me as if ‘as though I were mad.
    他们瞧着我好像我发疯了似的。
    They look as if/as though they know each other.
    他们看来好像互相认识。

    状语从句 - 比较状语从句
    (1) as...as 引导的比较状语从句
    as...as表示同级比较，主句中用形容词或副词的原级形式，从句常常为省略句。如：
    We were as fortunate as them (they were)
    我们和他们一样幸运。
    I hope she will make as much progress as you (have done).
    我希望她将取得和你同样的进步。
    (2) not so/as...as 引导的比较状语从句
    not so/as...as表示同级比较，主句中用形容词或副词的原级形式，从句常常为省略句。如：
    That’s not so/as simple as it sounds.
    那件事情不像听起来那么简单。
    (3) than引导的比较状语从句
    than引导的比较状语从句表示同等比较，主句中用形容词或副词的比较级形式，从句常常为省略句。如：
    He has lived here longer than I(has lived).
    他在这儿住的时间比我长。
    They love the girl than(they love) him.
    他们爱这个女孩而不爱他。
    (4) the..., the...引导的比较状语从句
    The more you listen to English, the easier it becomes.
    英语听得越多就越容易。



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