[正] I want to change my camera for that one.
[析] change for为"以某物为交换物"。而change with则是"随……而变",如:The
wood's colour changed with the season.
cheap
[误]
A teacher's salary is generally very cheap.
[正] A teacher's salary is generally very low.
[析] 工资的高低要用low,cheap是指价格便宜,如果要讲物美价廉则要用not expensive, 如:This car is not expensive.
choose
[误]
We each had to have a choose of A or B.
[正]
We each had to have a choice of A or B.
[析] choice是名词,而choose是动词。
class
[误] The class is watching TV.
[正] The class are watching TV.
[析] class作主语时,如果作为整体讲则应用单数形式的谓语动词,如:The class was more than forty in number. 如考虑到具体的每个成员时则应用复数形式的谓语动词,如:
The class are, in general, very bright.
clean
[误] Sorry, I didn't bought it here. I cleanly forgot.
[正]
Sorry, I didn't bought it here. I clean forgot.
[析] clean可以作为副词讲,其意为"完全",而cleanly则意为"正确地"、"干净利落地",如:The knife doesn't cut cleanly. 而clean作为形容词讲时意为"清洁的"、"干净的",如:
Her face is not clean now.
clever
[误] I'm not clever in English.