----- In recent years,___ problem of global warning has been very serious. -----

题型：不详难度：来源：

----- In recent years,___ problem of global warning has been very serious.
------That’s right. People are facing ____ number of natural disasters now.

A．不填;

B．a; the

C．the; a

D．a; a

答案

解析

考查冠词。全球变暖的问题是特指，a number of，许多，为固定表达。

举一反三

Beginning college is exciting：many of us can be easily overwhelmed by _______ details of running ________ well-balanced life.

A．／; the

B．the; a

C．／; a

D．the; ／

题型：不详难度：| 查看答案

.It is very obvious that ______little money my father earns very month hardly support______family as large as mine.

A．the; the

B．a; the

C．the; a

D．不填; a

题型：不详难度：| 查看答案

I wonder whether he is ____ European or ____ American?

A．an….an

B．an….a

C．a….an

D．a….a

题型：不详难度：| 查看答案

It’s ___ time that he has failed in the experiment.However, he has made up his mind to try ___ time next week.

A．the first…a second

B．a first.. the second

C．for the first.. second

D．the first..second

题型：不详难度：| 查看答案

I enjoy living in ___ room, ___ window of which opens to ___ south.

A．a.. the..a

B．a..the..the

C．the…a …the

D．the…the…a

题型：不详难度：| 查看答案