主谓不一致名词单复数错误代词指代不明动词时态不一致
英语一致性常见错误产生的原因主要是对于英语语法的规则和用法掌握不透彻或理解不准确所导致的。为了避免这些错误，我们应该加强对英语语法的学习和练习，不断提高自己的语言素养和表达能力。
一、主谓不一致
主谓不一致是英语中非常常见的错误之一。产生这种错误的原因主要是对于主语和谓语之间数的关系理解不透彻。例如，当主语是单数时，谓语应使用单数形式；当主语是复数时，谓语应使用复数形式。另一个常见的原因是对于某些集体名词或主语修饰语的理解不准确，导致谓语形式的错误选择。
二、名词单复数错误
名词单复数错误主要是由于对于名词的可数性和复数形式的规则不熟悉所导致的。在英语中，名词分为可数名词和不可数名词，可数名词有单数和复数两种形式。而名词的复数形式有多种构成方式，如加-s或-es等。对于这些规则的掌握不牢，就容易出现名词单复数使用不当的错误。
三、代词指代不明
代词指代不明的错误往往是由于对于代词的用法和指代范围理解不清楚所导致的。代词的主要作用是替代名词，以避免重复。但是，如果代词的指代不明确，或者与前面的名词不一致，就会导致读者对句子的理解产生困惑。
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动词时态不一致的错误主要是由于对于动词时态的规则和用法不熟悉所导致的。在英语中，动词有多种时态，如一般现在时、一般过去时、现在进行时等。对于不同时态的使用条件和规则掌握不牢，就容易出现动词时态使用不当的错误。
五、形容词/副词比较级错误
形容词/副词比较级错误主要是由于对于形容词和副词的比较级和最高级的构成和用法不熟悉所导致的。在英语中，形容词和副词的比较级和最高级形式用于表示事物或行为之间的比较关系。对于这些形式的构成和用法掌握不牢，就容易出现比较级和最高级使用不当的错误。
六、定语从句与主句不一致
定语从句与主句不一致的错误主要是由于对于定语从句的构成和用法不熟悉所导致的。定语从句用于修饰名词或代词，并与其构成一个整体。但是，如果定语从句的谓语与主句的谓语不一致，或者定语从句的修饰对象不明确，就会导致整个句子的意义混淆。
七、冠词与名词搭配不当
冠词与名词搭配不当的错误主要是由于对于冠词的种类和用法不熟悉所导致的。在英语中，冠词分为定冠词和不定冠词两种，用于修饰名词并表示名词的种类或范围。但是，如果冠词与名词的搭配不当，或者对于冠词的使用条件不清楚，就容易出现搭配错误的情况。
八、平行结构错误
平行结构错误主要是由于对于英语句子中平行结构的构造和用法不熟悉所导致的。平行结构是指句子中两个或多个并列成分在语法结构和意义上应保持一致。但是，如果对于平行结构的规则掌握不牢，就容易出现结构混乱或意义不明确的错误。
When a piece of art work is sold, information about who bought it and who sold it and also where it was sold, is usually recorded. If a work of art has no such information with it, then there is a good chance that it’s a forged（伪造）one.
Although there are many ways to detect forged art, it can still be a very difficult task for experts. Forgers know a lot about the artists and the materials that he or she used. They are very careful about painting exactly in the artist’s style. Yet experts continue to develop new technology to help fight forgery. For instance, scientists are now using the digital code from computer images, which can show the artist’s digital “fingerprint”. The digital fingerprint can give scientists specific information about the pressure, angle or thickness of the original artist’s strokes（笔画）of the brush. Some people today believe that there are almost as many forged works of art as original ones. However, with technology continuing to improve, it will surely become far more difficult for a forger to fool art experts.
Art can tell us about our own and other cultures and provide us with a valuable record of human history. While many great artists have borrowed ideas and been influenced by those before them, they have often taken these ideas and changed them into something that is fresh and new and originally theirs. Forgers are not expressing their own original ideas at all.
An original work of art has something a forged piece will never have. It has the touch, the feelings, the interpretation（诠释）of its creator and this is what gives it its mark of originality. It could be like comparing fresh flowers with artificial ones. Artificial flowers might have the same color, design, shape and look of real flowers in every way. Yet, examine them closer. Do they have the same feel?
8．What is important to recognize an original work of art?
A．Its creator. B．Its document.
C．Its value. D．Its background.
9．Which aspect of the original artist’s work can be shown by the digital fingerprint?
A．Its precise style. B．Its natural material.
C．Its long history. D．Its original size.
10．What is the author’s attitude toward fighting forgery?
A．Cautious. B．Positive. C．Doubtful. D．Hopeless.
11．What can we learn about a forged work of art in the last paragraph?
A．Its topic covers different kinds of flowers.
B．It is as good as the original one.
C．It needs to be wiped out totally.
D．Its maker may be skilled.
