(22) Without enough knowledges, you can never teach well. (knowledges改为knowledge，因 knowledge是不可数名词，没有复数形式) (湖北卷) 一、考点规律分析
短文改错对冠词的考查主要涉及冠词的误加和漏用，有时也考查不定冠词与定冠词以及零冠词的用法区别(包括 a 与 an 的区别)。其中，涉及最多的是，当一个单数可数名词表示泛指时，其前漏用不定冠词;另外，冠词在一些习语中的用法也是一个重要考点。 二、真题单句归纳
(1) After a hour or so we began to feel very frightened. (a 改为 an，因 hour 读音以元音开头) (全国卷)
(2) I decided to climb the tree to see where we were. (the 改为 a，因此处并非特指，而是泛指) (全国卷)
(2) Some people read the books or watch television while others have sports. (去掉 the，因这里的 books 表泛指，不表特指) (全国卷) (3) Good health is person’s most valuable possession. (person’s 前加 a，这里的 a 表泛指) (全国卷)
(4) Modern people know more about the health, have better food, and live in clearer surroundings. (去掉 the，因health 表泛指) (全国卷) (5) There is public library in every town in Britain. (public library 前加 a，因这里的 public library 是单数可数名词表泛指，故在其前用 a) (全国卷) (6) Maybe you could come during a winter holidays. (a 改为 the，因从含义上看，此处的 winter holidays 属特指或者是谈话双方都知道的) (全国卷)
(7) Today I visited the Smiths — my first visit to a American family. (a 改为 an，因 American 的读音以元音开头) (全国卷)
(8) Each player must obey captain, who is the leader of the team. (captain 前加冠词 the，captain 为特指) (全国卷)
(9) Some wanted to see the programme while others preferred another. (the 改为 one，one 与下一行的 another 构成“一个……另一个”) (全国卷)
(10) I’ll take this chance to wish you wonderful time on your birthday. (wonderful 前加 a，该表达与 have a good time 类似，其中的 a 不可省) (北京春季卷)
(11) Suddenly, I caught a sight of my English teacher in the crowd. (去掉 a，catch sight of 是习语，意为“看见、瞥见”) (全国卷)
(12) For example, when I was a child, the rain was a mystery(奥秘). (去掉 the，rain 在此泛指) (北京春季卷)
(13) We may be one family and live under a same roof. (a 改为 the，因 same 前应用定冠词) (全国卷)
(14) As everyone knows, it’s famous mountain with all kinds of plants and animals.(在 famous 前加 a，注意 mountain 是单数可数名词) (全国卷)
(15) My teacher advised me to keep my diary. (my diary 改为 a diary，keep a diary 意为“写日记”) (全国卷) 一、考点规律分析
此考点归纳的是除动词时态与非谓语动词之外的动词考点，它包括被动语态、情态动词、动词形式的变化、动词用法辨析、动词 be 的误加与漏用等。 二、真题单句归纳
(1) He lied down by the side of the path to rest. (lied 改为 lay，lie 表示“躺”时，其过去时是 lay) (全国卷)
(2) Charles and Linda were seeing near the top of the building. (seeing 改为 seen，因为从含义上看，此处谓语应用被动语态) (全国卷) (3) Books may be keep for four weeks. (keep 改为 kept，因此处要用被动语态) (全国卷)
(4) …and let you know when the book you want has returned. (returned 之前加 been，因从句意上看，此处要用被动语态) (全国卷) (5) Uncle Ben will also go back for Christmas. (go 改为 come，由句意可知) (全国卷)
(6) They eager to know everything about China and asked me lots of questions. (eager 前加were，因此处缺谓语动词) (全国卷)
(7) I’d like to your pen-friend, and get to know more about your country. (to 后加 be / become，因 would like后要接不定式，根据句意此处应加 be / become) (全国卷)
(8) What your favourite sport? (what 后加 is 或将 What 改为 What’s，此句缺谓语) (全国卷)
(9) I use to play ping-pong a lot in my spare time, but now I am interested in football. (use to 改为 used to，此为习语，意为“过去经常”) (全国卷)
(10) I was used to watch it every night. (去掉 was，因 used to do sth 是固定表达，意为“过去常常做……”) (全国卷)
(11) There will an important game next month. (will 后加be，此处缺谓语动词) (安徽春季卷)
(12) Because of so much viewing, children may not be develop the habit of reading and the ability to enjoy themselves. (去掉 be，因它与其后的动词 develop 相冲突) (北京春季卷)
(13) I followed her advice and should put down 100 words or so each day. (去掉 should，因 put 和 followed 是平行结构，作并列谓语) (全国卷)
(14) As we were all left home at an early age. (去掉were，因句中已有谓语动词left，“我们离开家”又是主动，不能再加be) (天津卷) (15) I often dream of a teacher. (a teacher 前加上 being 或
becoming。根据后文的内容看来，作者不是梦见老师，而是自己梦想“成为”一名教师) (年湖北卷)
(16) Without enough knowledges, you can never learn well.(learn改为teach，因上句讲“为了教好，教师不得不学”，此句便是“没有学问，就决不会教好”) (年湖北卷) 一、考点规律分析
短文改错对从句引导词的考查主要涉及根据句意正确选用引导词、引导词的误加与漏用、将不是从句的东西误认为是从句而误加引导词等。 二、真题单句归纳
(1) In the last five years that they’ve climbed churches, high buildings and television towers. (去掉 that，因此处的 in the last five years 为时间状语，其后无需用that) (全国卷)
(2) Charles said, “As soon I see a really tall building, I want to climb it.(I 前加 as，因为 as soon as 为引导时间状语从句的引导词)(全国卷) (3) Most people can quickly get help from a doctor or go to a hospital since they are ill. (since 改为 when / if / whenever。从句意上看此处用 since 讲不通，改为 if / when / whenever 均可) (全国卷)
(4) However, there are still some countries there people have shorter lives. (there 改为 where，where 在此引导定语从句) (全国卷) (5) …in other places where you are limited to a certain number, of which some may be novels. (去掉 where，in other places 在此为地点状语) (全国卷)
(6) …in other places you are limited to a certain number, of that some may be novels. (that 改为 which，因介词后要用 which 来引导定语从句) (全国卷)
(7) …and whether you pay the cost of sending a postcard, the librarian will write to you. (whether 改为 if，表示“如果”时，不能用 whether) (全国卷)
(8) I also enjoyed the evenings when we spent together. (去掉 when 或将 when 改为 that，因这里的定语从句中谓语动词(spent)缺宾语，故只能用关系代词 that或将其省略) (全国卷)
(9) I live in Beijing, where is the capital of China. (where 改为 which，因此处要填关系代词作主语) (全国卷)
(10) …but it didn’t matter that I would win or not. (that 改为 whether，whether 与 or not 搭配，表示“是否”) (全国卷)
(11) I felt so nervous as I shook like a leaf. (as 改为 that，so…that…为固定句式，其中的 that 引导结果状语从句) (全国卷)
(12) In one class, I learned it rained. (it 前加why，why 在此表原因) (北京春季卷)
(13) For example, when he bought a chocolate cake, he put it in a secret place where I couldn’t find. (where 改为that / which，或去掉 where，I couldn’t find 为修饰 place 的定语从句，其前用关系代词，也可省略) (北京春季卷)