题目内容
18._______ you start eating in a healthier way,weight control will become much easier.( )A. | unless | B. | Although | C. | Before | D. | Once |
分析 一旦你开始更健康的饮食,控制体重就会变得容易得多.
解答 答案:D
unless除非;although尽管;before 在…之前;once 一旦.unless相当于if not,引导条件状语从句;although引导让步状语从句,不能和but连用;before引导时间状语从句;once引导具有条件意味的时间状语从句.根据语境和词义可知选D.
点评 考查此类试题,要弄清主从句之间的关系.
练习册系列答案
相关题目
8.I cannot hear the professor clearly as there is too much noise ________ I am sitting.( )
A. | before | B. | until | C. | unless | D. | where |
9.-This apple pie is too sweet,don't you think so?
-_____.I think it's just right,actually.( )
-_____.I think it's just right,actually.( )
A. | Not really | B. | I hope so | C. | Sounds good | D. | No wonder |
6.We would rather our daughter ________ at home with us,but it is her choice,and she is not a child any longer.( )
A. | would stay | B. | has stayed | C. | stayed | D. | stay |
13.I'll be out for some time.______ anything important happens,call me up immediately.( )
A. | In case | B. | As if | C. | Even though | D. | Now that |
3.I think _______ impresses me about his painting is the colours he uses.( )
A. | what | B. | that | C. | which | D. | who |
10.-Oh no!We're too late.The train _______.
-That's Ok.We'll catch the next train to London.( )
-That's Ok.We'll catch the next train to London.( )
A. | was leaving | B. | had left | ||
C. | has left | D. | has been leaving |
7.With time going by,_____once seemed vital in our life is no longer as important now.( )
A. | which | B. | how | C. | what | D. | whether |