在现代英语的语法中，从句指复合句中不能独立成句，但却具有主语部分和谓语部分并且由引导词引导的非主句部分。根据在句子起到的作用，从句可以被分成不同的类别，如定语从句和状语从句。而因为都含有引导词where，状语从句中的地点状语从句很容易跟定语从句混淆，今天小编就来区分一下两种从句。 首先我们要明确的是分句在句子中作什么成分，如果where引导的从句作状语，修饰主句谓语动词表示动作发生地点，则该从句为地点状语从句：而当where引导的从句为定语从句时，该从句一定会修饰一个名词——先行词，作定语，来表明那是一个怎样的地点。下面我们结合例句来分析一下： When reading books, Max always makes marks at the spot where she has questions. When reading books, Max always makes marks where she has questions. 解析：第一句the spot作为一个表示地点的先行词，此处 where 引导定语从句；而第二句where 之前是动词mark，where表示Max做标记的地方，引导的是地点状语从句。 Go back where you came from. Go back the country where you came from. 第一句where修饰动词词组Go back，表示回到你来的地方，引导地点状语从句；第二句the country作为先行词，此处 where 引导定语从句。 大家学会如何区分由where引导的地点状语从句与定语从句了么？其实最关键的一点就是分析句子成分，看从句在句子中修饰什么，做什么成分，就能够明确从句的种类啦，方法很简单，但同学们一定要多多练习哦。

由as,which 引导的非限定性定语从句，as和which可代整个主句，相当于andthis或andthat。As一般放在句首，which在句中。例如： ·As weknow, smoking is harmful to one's health.  如我们所知，吸烟有害健康。 ·The sunheats the earth, which is very important to us.  太阳使地球暖起来，这对我们人类很重要。 【特别提示】 as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以做主语和宾语。但不同之处主要有两点： a）as 引导的定语从句可置于句首，而which不可。 b）as 代表前定语从句，as和which可代整个主句，相当于andthis或andthat。As一般放在句首，which在句面的整个主句并在从句中做主语时，从句中的谓语必须是系动词；若为行为动词，则从句中的关系代词只能用which.。

。 __________________________________ always seems better than what we have. 6 给我印象最深刻的是这么小的男孩拉小提琴拉得这么好。。 ______________________________such a little b宾语oy could play the violin so well. 答案 1 A 主语从句用陈述语序。 2 That改成What，what在主语从句中作宾语 3 That改成What，what在主语从句中作宾语 4 What改成That,That无意义 5 What we can’t get 主语从句 6 What impressed me most was that 以上就是英语主语从句学习内容的分享，希望可以给大家在学习的过程中带来帮助。 如果您对英语学习感兴趣，想要深入学习，可以了解沪江网校精品课程，量身定制高效实用的个性化学习方案，专属督导全程伴学。扫一扫领200畅学卡

constructing sentences to deepen understanding and proficiency in using object clauses. 通过以上技巧和方法的学习和实践，我们可以更快地理解和运用宾语从句，提高语言表达的准确性和流畅度，从而在英语学习和交流中取得更好的效果。   如果您对英语学习感兴趣，想要深入学习，可以了解沪江网校精品课程，量身定制高效实用的个性化学习方案，专属督导全程伴学，扫一扫领200畅学卡。

定语从句也是一种非常常见的从句形式，是各类考试都必定考察的重点，然而定语从句

句话不可以写成：Tennis, that is the best summer game, can be played by two or four players. 在语法上是错误的。 4.3   在限制性定语从句中有时可用who代替whom，但是在非限制性定语从句中不定语从句是由关系代词和关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，定语从句分为限制性可以用who代替whom 例：He is the only doctor who/whom I can turn to for help.（限制性定语从句）他是我唯一能求助的医生了。（关系词作宾语时可用who代替whom） 例：He is a warm-hearted doctor, to whom I can turn for help.（非限制性定语从句）他是个好心的医生，我可以向他求助。 5、在非限制性定语从句中，“介词+关系代词”结构前可以使用all、both、most、some等词，与of which/whom搭配。 例：Her daughters, both

天和大家来分享的是英语语法知识当中的主语从句(Subject Clause)， 主语从句即在主从复合句中充当主语成分的句子。对此还不太了解的，今天可以一起来往下看看。 It is important. That we all should attend the meeting is important. It is important (that) we all should attend the meeting. 主语从句的连词 1、连词that(句首不可省略)，whether，if引导的主语从句。 That the earth is round is true. It is true that the earth is round. That you missed such an interesting film is a pity. It is a pity that you missed such an interesting film. That she is still alive is sheer luck. It is sheer luch that she is still alive. It remains unknown whether/if we will go for an outing tomorrow. 注意：whether/if含有“是否”的意思，可以加上“or not”，其语义不变。但如果主语从句位于句首则必语课程，可以让自己掌握更多的知识，提升英语水平。今天和大家来分享的是英语语法知识当中的主语从句(Subject Clause)， 主语从句须用连接词whether，不用if。 If the meeting will be put off hasn't been decided yet. (X) Whether the meeting will be put off hasn't been decided yet. (√) It is still a question whether/if it is true or not. Whether it is true or not is still a question. 2、连接代词who，whose，what，which，wh+ever引导的主语从句。 Who will come to teach the students is not known. Whom the watch belongs to is unknown. Whose watch was lost is unknown. Whatever he said wasn't true. 3、连接副词 where，when，how，why引导的主语从句。 Where the library is to be built has not been decided yet. When we start the work is an important question. How this happened is not clear. Why she was late for school is quite clear now. 注意：主语从句中的连词不能重叠使用。 That whether we'll go camping tomorrow depends on the weather. (X) Whether we'll go camping tomorrow depends on the weather. (√) 主语从句的语序 主语从句的语序用陈述语序 When will she come is not known.(X) When she will come is not known. (√) What we need is more time. (√) What do we need is more time.(X) 主语从句的时态 主语从句的时态不受主句时态影响和限制。 What caused the accident remains unknown. What he did yesterday will never be known by his mother. It is certain that he will win the match. It is suggested that the work should be done with great care. 主语从句的注意事项 1. 主语从句的谓语一般用单数形式; When the meeting will be held haven't been known yet.(X) When the meeting will be held hasn't been known yet. (√) When he will come is a puzzle. (√) 2. What引导的主语从句，可根据表语决定主句动词的单复数形式; What he needs is that book. What he needs are some books. 3. What引导的主语从句一般不可以改为含形式主语的句子，that则可以; What you said yesterday is right. It is right what you said yesterday.(X) That she is still alive is certain. It is certain that she is still alive. (√) 4. 常见用it做形式主语的主语从句 It is known to all that the gunpowder was first invented by the Chinese. It is true that he has made a very important discovery in chemistry. It is important that we all should attend the meeting. It is a pity that we won't be able to go to the south to spend our summer vacation. It is doubtful whether she will be able to come. It is said that he has gone to Shanghai. It is still a mystery what caused the accident. It seems obvious that we can not go on like this. 如果你想选择线上英语课来进行培训，大家可以来网校了解了解相关的课程和资讯。如果您对英语学习感兴趣，想要深入学习，可以了解沪江网校精品课程，量身定制高效实用的个性化学习方案，专属督导全程伴学，扫一扫领200畅学卡。

句式和词语，而定语从句是雅思写作中常常用到的一个复句句

，resulting from……为现在分词短语作difference的后置定语。which引导一个非限制性定语从句，修饰allocation to that引导一个结果状语从句。plus为介词，意为“加上”。soap war 为“肥皂广告大战”。 译文 在Proctor and Gamble和 Unilever两家企业之间的“肥皂大战”中，双方就大量使用了统计学知识来测量由相应的广告投入所引起的市场上的动态差异，这一项在前的生产成本中占较大部分，所以他们把生产成本看作是生产费用与广告费用之和。 【新东方】CET六级精品全程班（保过）>> 【新东方】CET四级精品全程班（保过

。 __________________________________ always seems better than what we have. 6 给我印象最深刻的是这么小的男孩拉小提琴拉得这么好。。 ______________________________such a little b宾语oy could play the violin so well. 答案 1 A 主语从句用陈述语序。 2 That改成What，what在主语从句中作宾语 3 That改成What，what在主语从句中作宾语 4 What改成That,That无意义 5 What we can’t get 主语从句 6 What impressed me most was that 以上就是英语主语从句学习内容的分享，希望可以给大家在学习的过程中带来帮助。 如果您对英语学习感兴趣，想要深入学习，可以了解沪江网校精品课程，量身定制高效实用的个性化学习方案，专属督导全程伴学。扫一扫领200畅学卡