Question

高中英语语法题目

The air inside a house or office building often has higher concentrations of contaminants ....... heavily polluted outside air.

A.than does
B.more
C.as some that are
D.like of 答案：A

这句话什么意思，为什么选A？

Answer 1

你原句的完整句子是：The air inside a house or office building often has higher concentrations of contaminants than heavily polluted outside air has high concentrations of contaminants .
然后has high concentrations of contaminants 与前面相同，于是用does这个代动词来代替。does这个词一般放在最后，放在前面也行。如：He runs faster than I ran.一般我们讲成：He runs faster than I do.

Answer 2

意思是：房屋或办公大楼内的空气 总是比室外已经严重污染的空气 有着跟高的空气污染物含量。

more/-er...than...的比较句式想必你应该知道的，does放在这里是倒装，因为前面的主语“室内空气”的动词是"has"，所以than后面的主语“室外空气”动词倒装用的是does咯^^

Answer 3

选C.
see to it that固定句型，表示处理某事
e.g. Will you see to it that this letter gets mailed today?请你务必今天把这封信寄出去，好么？

be sure that确信的，有把握的
I'm sure there's a logical explaination for all this.我确信这些问题都有合理解释

hope for 后接名词，不接that从句
如接句子应为hope that

make it to--to arrive somewhere in time for something即使到达，赶上
e.g. I just made it to the bathroom before throwing up.我忍住呕吐，及时冲进卫生间。

所以C为最佳答案，句意：他今天又迟到了。我会负责处理，保证他明天不来晚。