爱华网增加：在此处加一个漏词符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（＼）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及修改均仅限一词；
2. 只允许修改10处，多者（从11处起）不计分。
Once I had to read a text-book which was so expensive for me to buy it. I couldn’t obtain it from the library and an only copy I could find was in a certain bookshop. So I will go along to the shop every afternoon and read a little of the book in a time. One day, therefore, I was disappointed to find the book missing from its usually place. He was about to leave when the owner of the shop waved at me. Expecting to be told off, I went towards him. To my surprise, the owner pointed to the book which placed in a corner. “I put it there in case it should be bought.” He said kindly, left me to continue my reading.题型：改错题难度：中档来源：不详
小题1:so-- too
小题2:it去掉
小题3:an – the
小题4:will—would
小题5:in -- at
小题6:therefore—however
小题8:usually—usual
小题7:He—I
小题9:去掉which或which后加was
小题10:left前加and或left—leaving试题分析：
小题1:副词用法错误。本题考查too … to …结构，表示“太…….而不能”。
小题2:关系代词用法错误。本句是定语从句，故把it去掉。
小题3:冠词用法错误。这里是特指，故用定冠词the。
小题4:时态用法错误。根据句中的时态可知用一般过去时态。
小题5:介词用法错误。这里用at a time表示“一次，每次”。
小题6:副词用法错误。根据句意可知，前后为转折关系，故用however。
小题7:词性用法错误。名词前应当用形容词修饰。
小题8:代词用法错误。根据全文可知，此处用第一人称。
小题9:句子结构用法错误。定语从句谓语应当用被动语态。
小题10:句子结构用法错误。句中缺少连词，或用现在分词形式。
考点：
考点名称：序数词序数词的概念：
表示顺序的数称为序数词。如：first, second, third, fourth。
序数词的构成与用法：
1、序数词的构成：
①一般来说，是由相应的基数词加词尾th构成。
例：four＋th→fourth
six＋th→sixth
seven＋th→seventh
ten＋th→tenth
②下面这些基数词在变为序数词时，有特殊的变化。
例：one→first
two→second
three→third
five→fifth
eight→eighth
nine→ninth
twelve→twelfth
③十位整数序数词的构成方法是将基数词的词y变成i，然后再加eth。
例：twenty→twentieth
thirty→thirtieth
forty→fortieth
ninety→ninetieth
④两位或两位以上的基数词变成序数词时，仅将个位数变成序数词。
例：twenty－one→twenty－first
thirty－five→thirty－fifth
a hundred and fifty－three→a hundred and fifty－third
2、序数词的用法：
①序数词在使用时，一般加上定冠词。
例：the first book
the second floor
the third day
the fourth week．
②序数词在多数情况下都用作定语，有的也可以作表语、主语和宾语。
例：The may1st is Labour Day. 五月一日是劳动节。
My room is on the second floor. 我的房间在二楼。
The first is larger than the secon.（主语）第一个比第二个大。
Read the book from the first.（宾语）从开头读这本书。
You'll be the sixth to write.（表语）你将是第六个写的。
③序数词的前面可以加上不定冠词，用来表示“再一”，“又一”的意思。
例：You may have a third try. 你可以第三次尝试。
序数词知识体系：
约数的表达方法：
用tens/dozens/scores/hundreds/thousands/millionsof 表示“几十、几百、上千、成千上万”等。
如：Theboyboughtdozensofpencils.
Thousandsofpeoplediedintheearthquake.
注意： (A)：dozen,score,hundred,thousand,million等表示确切数量时，不用复数。
如：fivedozen(of)eggs五打鸡蛋
hreehundredpeople 三百个人
分数词的构成和用法：
1）分数词构成法：
分数词（FractionalNumerals）由基数词和序数词构成，基数词代表分子，序数词代表分母。除了分子为1的情况下，序数词都要用复数形式：
如：1/4：one-fourth
5/9：five-ninths
2/3：two-thirds
17/5：three and two-fifths
7/12：seven-twelfths
379/8：forty-seven and three-eighths
此外还有下面表示法：
如：1/2：a(one) half
1/4：a(one) quarter
3/4：three-quarters
9/4：two and a quarter
3/2：one and half
31/4：seven and three quarters
