一致关系

一致关系 1. 概述 所谓一致关系就是在英语句子中各个成分之间必须在人称、性、数等方面保持一定的语法关系。一致关系必须遵循三个原则,即语法一致原则、意义一致原则和就近一致原则。 (1). 语法一致 主语为单数形式,谓语动词用单数形式;主语为复数形式,谓语动词也用复数形式。如: The number of mistakes was surprising. 错误的数量很惊人。 (2). 意义一致 ①. 主语形式虽为单数,但意义为复数,谓语动词要用复数形式。如: My family are having supper now. 我们一家人现在正吃晚饭。 ②. 主语形式为复数而意义上却是单数,谓语动词要用单数形式。如: Thirty dollars is too expensive for this dictionary. 这本词典30美元太贵了。 (3). 就近一致 谓语动词的单、复数形式取决于最靠近它的词语。如: Not only the teacher but also his students like playing football. 不仅老师喜欢踢足球,而且学生也喜欢踢足球。 2. 主谓一致(名词与动词的一致) (1). 单复数同形的名词作主语时谓语动词的形式... » read more

IT的用法

IT的用法 it的用法很重要也很复杂。it除作人称代词外,还可用作先行代词,引导后面的短语或从句。此外, it还用于强调句中。 1. it的用法 (1). it用作人称代词 ① it用作人称代词,通常指人以外的生物和事物,无阴阳之分。如: There is a car near the building. It is my neighbor’s. 楼旁有辆小汽车,它是我邻居的。 Mr Zhang wrote a novel. It is about the miserable life of a young woman. 张先生写了一部小说,它是关于一个年轻妇女悲惨生活的。 ② it有时可用来代替小孩 (child) 和婴儿 (baby) 。 如: The child smiled when it saw its mother. 小孩看到母亲就笑了。 (2).it可用作指示代词相当于this和that It... » read more

代词

代词的种类及5种基本代词的用法 1. 代词的种类 类 别 举 例 人称代词(主格) I, you, he, she, it, we, you, they 人称代词(宾格) me, you, him, her, it, us, you, them 形容词性物主代词 my, your, his, her, its, our, your, their 名词性物主代词 mine, yours, his, hers, its, ours, yours, theirs 反身代词 myself, yourself, himself, herself, itself, ourselves, yourselves, themselves, oneself 相互代词 each... » read more

冠词

定冠词 1. 定冠词特指某个(某些)人或某个(某些)事物 Many people came here to visit the old castle. 很多人来这里参观这座古城堡。 The man in black is a magician. 穿黑色衣服的那个人是个魔术师。 2. 定冠词用于第二次提到或复述上文提过的人或事物 He was given a pen and a form. He is going to use the pen to fill out the form. 他拿到一支笔和一张表。他要用这支笔填这张表。 They went into a small pub. The pub was crowded with... » read more

名词

名词的数 1. 名词复数的规则变化形式 词尾字母 变化方式 例  词 通常情况 加-s bird-birds, shop-shops, lake-lakes -ch,-sh,-s,-x,-z 加-es church-churches, dish-dishes, class-classes, box-boxes 辅音字母+y 变-y为-i再加-es factory-factories, fly-flies, family-families, baby-babies -o 加-es tomato-tomatoes, hero-heroes -f或-fe 变-f或-fe为-v 再加-es leaf-leaves, thief-thieves, shelf-shelves, knife-knives, life-lives, half-halves 有些以-f或-fe结尾的名词复数只加-s, 读作 / s /。如: gulf - gulfs 海湾 proof - proofs 证据 chief - chiefs 首领 roof -... » read more