A tourist will easily lose his way in Shanghai_____ he has a map or a guide.A．if

题型：不详难度：来源：

A tourist will easily lose his way in Shanghai_____ he has a map or a guide.

A．if

B．since

C．while

D．unless

答案

解析

试题分析：句意：除非旅游者有向导或者是地图，否则很容易在上海迷路。if如果，since自从，while在...期间，unless除非。根据句意，可知选D。

举一反三

--- I feel nervous about the coming summer.
---- Me , too. Hot weather _____ makes people feel hot, ______ causes serious health problems.

A．either…. or

B．neither …nor

C．both….and

D．not only….but also

题型：不详难度：| 查看答案

Some people waste a lot of food___________ others don’t have enough to eat.

A．however

B．when

C．as

D．while

题型：不详难度：| 查看答案

-_______are you going for vacation?
-I am going to Canada.

A．What

B．Where

C．How

D．How long

题型：不详难度：| 查看答案

____ he was very tired, he didn"t stop to have a rest.

A．But

B．As

C．Because

D．Although

题型：不详难度：| 查看答案

I have a tape player, _______ he doesn’t have one.

A．and

B．but

C．or

D．So

题型：不详难度：| 查看答案