题目内容
You’d better leave home as early as possible, ________ you will be late for the flight.
| A．and | B．but | C．so | D．or |
D
解析试题分析：句意：你最好尽早离开家,否则你会误了航班，A.and和，又，而； B.but但是；C.so所以；D.or否则。结合句意，故选D
考点：考查连词的用法
快乐小博士巩固与提高系列答案There will be a stamp shown in the museum ______ we visited last week.
| A．who | B．when | C．which | D．what |
-- May I go to the concert with you?
-- I’m afraid not ____ you have a ticket, because I have only one.
| A．since | B．if |
| C．unless | D．though |
Daniel is busy these days. I doubt he will come to my birthday party or not this Sunday.
| A．that | B．when |
| C．how | D．whether |
Every day students in our school will do outdoor activities ______ there is a heavy haze(雾霾).
| A．unless | B．while |
| C．until | D．since |
— Don’t worry. He’ll come and help you.
—_______he doesn’t come?
| A．What | B．Why |
| C．What if | D．How if |
— Your aunt often walks the dog in the morning.
— Yeah, ___________ bad weather stops her.
| A．when | B．unless |
| C．because | D．since |
—Why do they look so disappointed?
—They look disappointed ____ they can’t go to see Love Me Once More, Mom.
| A．so | B．but |
| C．because | D．because of |
_____ a lot of small ads are put up on the walls, out city will be untidy.
| A．Until | B．Though | C．If | D．Unless |