比较在雅思考试中极其重要，因为它既考察学生的思维也考察学生语言功底。雅思口语中第三部分经常让我们进行四种对比，古今对比，老少对比，中西对比，男女对比。雅思大作文中论证时有时需要对比论证，从而更好证明论点。A类小作文题目明确要求要make comparisons where relevant。可是同学们关于比较的错误比比皆是。有鉴于此，墨尔本文波雅思创始人文波老师为大家总结了关于比较的学生常犯的7种错误：
1.比较对象不同，指代不明：
北京的天气比上海的天气冷
The weather in Bj is colder than SH.—wrong
The weather in BJ is colder than that in SH.—correct
The weather of BJ is colder than that of SH.—correct
BJ’s weather is colder than SH.—wrong
BJ’s weather is colder than that in SH.— wrong
BJ’s weather is colder than SH’s.—correct
that 指代前面的可数名词单数和不可数名词
those 指代前面的可数名词复数
北京的房价比上海（的房价）高
The housing prices in BJ are way higher than those in SH.—correct
ZW’s eyes are bigger than LYL—wrong
ZW’s eyes are bigger than LYL’s.—correct
The eyes of ZW are bigger than those of LYL—correct
2.含义模糊
I love soccer better than my girlfriend.–wrong
I love soccer better than my girlfriend does. —correct
我对足球的爱胜过我女友对足球的爱。
I love soccer better than I do my girlfriend. —correct
我爱足球胜过我爱我女朋友。
3.倍数不会表达
A is half as much as B A是B的一半
A是B的3倍长
A is 3 times longer than B
A is 3 times as long as B
A is 3 times the length of B
长江是珠江三倍长。
The Yangtze River is 3 times longer than the Pearl River.
The Yangtze River is 3 times as long as the Pearl River.
The Yangtze River is 3 times the length of Pearl River.
4. double/triple/halve 动词不会使用
Double: The length of CJ doubles that of ZJ. 长江的长度是珠江的两倍。
The birth rate has more than doubled in the past 20 years. 出生率在过去的二十年翻了不止两倍。
The birth rate has more than halved in the past 20 years. 出生率在过去的二十年萎缩了不止一半。
5. 重复比较级乱用-more and more
The kid is becoming more and more tall.—wrong
The kid is becoming more and more taller.—wrong
The kid is becoming taller and taller.—correct 孩子变的越来越高。
His homework is becoming more and more difficult.—correct 他的家庭作业变的越来越难。
6.双重比较级混沌
the more, the more
The more games we play, the more smart we will become—wrong
The more games we play, the smarter we will become.—correct
正确的结构： the more +主语+谓语， the more +主语+谓语
The more senior citizens there are in a society, the more claims are made for the state pension.
社会老年人越多，要养老金的人越多。
7.compare with/comparing with/compared with 乱用一气
Compare with 是谓语动词搭配，例句如下：
If we compare A with B, we may find that A is better.
Compared with 是过去分词短语，例句如下：
Compared with A, B is better.
Comparing with 是现在分词短语，例句如下：
Comparing A with B, we may find A is better.
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