We can never expect bluer sky unless we create less polluted world.
A. a; a B. a; the
C. the; a D. the; the
A.
解析:本题考察冠词的用法,因为sky和world原本是独一无二的,但这里前面都有了形容词修饰,表示会出现一个什么样的sky和world,这里就属于泛反指了.
I wonder how much you charge for your services.
-- The first two are free the third costs $30.
A. while B. until
C. when D. before
A.
解析:这里起转折作用,while表示”但是”,可接句子.”前两个免费,但第三个要收费30元”Daniel's family their holiday in Huangshan this time next week.
A. are enjoying B. are to enjoy
C. will enjoy D. will be enjoying
D.
解析:本题关键点最后四个单词”this time next week”是将来进行时的标志.
-- Do you think it's a good idea to make friends with your students?
-- , I do. I think it's a great idea.
A. Really B. Obviously
C. Actually D. Generally
C.
解析:考察四个副词基本词意的区别.Really真地,obviously,明显地,Actually,实际上,Generally,一般来说.从句意来看,显然,Actually最符合情境.本题在做的时候应该多读几遍就会自然出来了.
Just as Professor Scotti often it, success is ninety-nine percent mental attitude.
A. gets B. makes
C. puts D. means
C.
解析:put it是一个常用语,表示”表达”的意思.本句意思为”正好Scotti教授经常表述的一样,成功是99%的精神态度”.
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