______ he had worked hard all the time, he failed the exam again. A．IfB．AsC．Whil

题型：不详难度：来源：

______ he had worked hard all the time, he failed the exam again.

A．If

B．As

C．While

D．Because

答案

解析

连词辨析。While有一特特殊用法，=though。结合句意可知C正确。句意：尽管他一直很努力，但是他又一次考试不及格。

举一反三

____time goes by, Mother’s hair is turning gray and the wrinkles on her face deeper.

A．with

B．as

C．while

D．when

题型：不详难度：| 查看答案

_______________made our school proud in 2011 was ____________ more than 40% of the students had been admitted to key universities.

A．What ; because

B．That; what

C．What ; that

D．That ; because

题型：不详难度：| 查看答案

—Do you think the weather will be all right this summer?
—No, _____ we are lucky. The newspaper says it"ll be very hot anyway.

A．if

B．though

C．unless

D．as

题型：不详难度：| 查看答案

Professor Hawking stepped into the office I knew that there was no hope.

A．Unless	B．Now that
C．Although	D．The moment

题型：不详难度：| 查看答案

High school students should be given enough sleeping time , _______ they are busy with their study .

A．even so

B．as though

C．as if

D．even if

题型：不详难度：| 查看答案