题目内容
5.You can't appreciate happiness _______ you have experienced sadness too.( )A. | because | B. | when | C. | though | D. | unless |
分析 如果你不曾经历忧伤,你就不会对幸福心存感激.
解答 答案:D
because因为;when当…时候;though尽管;unless除非.题干表示的是条件,前面说的是不懂珍惜幸福,后面说的是经历过忧伤,应该是如果没有if not,相当于unless.故选D.
点评 从属连词通常用来连接名词性从句和状语从句.常用的有if,whether,who,when,where等.学习时要注意区分和掌握.
练习册系列答案
相关题目
15.My mum's letters really encouraged me _____ my illness.( )
A. | over | B. | for | C. | throughout | D. | within |
13.Energy,passion and a burning desire are,you see, true learning takes.( )
A. | that | B. | what | C. | how | D. | which |
20.Carl hopes to win the tennis game one day.That is he has been practicing hard.( )
A. | why | B. | how | C. | because | D. | where |
10.The woman,together with her husband and two children,________ the guard to let them through then.( )
A. | was asking | B. | were asking | C. | ask | D. | was asked |
15.The accident caused some _______to my car,but it's nothing serious.( )
A. | harm | B. | injury | C. | ruin | D. | damage |