题目内容
We can’t do well in examination _________ we study hard in school time.
| A．if | B．and | C．since | D．unless |
D
解析试题分析：根据题干，本句的意思是“除非我们在校努力学习，否则我们不能在考试中取得好的成绩。”unless是“除非，如果…不”的意思。其他词if“如果”，and“和”，since“自从”都不符合题意。所以本题选D。
考点：本题考查连词。
练习册系列答案
相关题目
________ everybody is present and everything is ready , let’s begin our party .
| A．Though | B．Even though | C．Now that | D．Unless |
There's a red car parking in our neighborhood. Do you know _____ it is?
| A．what | B．who | C．whose | D．Where |
you have talk to him , you will find he is a good person.
| A．Though | B．Once | C．Because | D．Unless |
---What do you think of Tom?
---He is ________ honest boy. He can play ________ piano very well.
| A．a; an | B．an; a | C．an; the | D．a; / |
Cars make our life easier, _________ they bring environment problems.
| A．as | B．or | C．but | D．so |
The rivers will become dirtier and dirtier ______ we take action to protect them.
| A．since | B．if | C．until | D．unless |