【C2】A.is about to occurB.are about to occurC.have occurredD.has occurred
【C2】
A.is about to occur
B.are about to occur
C.have occurred
D.has occurred
【C2】
A.is about to occur
B.are about to occur
C.have occurred
D.has occurred
A.is; are
B.are; are
C.are; is
D.is; is
According to the author, the new discovery about Oxygen-rich red giants ______
A.is significant for the explanation of the origin of life.
B.can prevent the Sun from death.
C.is able to well describe the death of white dwarfs.
D.has been proven to be true.
Carl Sagan suggests that modem man ______.
A.is very confused about the origin of the Earth
B.might possibly reach life outside the
C.believes it is possible to step off the Earth
D.is historically incapable of exploring the universe
From the text we can conclude that the author
A.is sympathetic to Shell.
B.worries about the oil industry.
C.takes a neutral attitude towards oil industry.
D.is optimistic about the oil production.
Mary has a curious expression on her face as though she ______ about something.
A.is smiling
B.were smiling
C.smiles
D.has smiled
When mentioning "the ongoing stock market on Wall Street", the writer ______.
A.is calling attention to the privileges to which baby-boomers are entitled
B.is calling for the government to take countermeasures against labor shortage
C.is refuting a notion about experienced workers' early retirement
D.is justifying the ineffectiveness of federal tax and benefit policies
One reason why the woman of today may take a job is that she ______.
A.is younger when her children are old enough to look after themselves
B.does not like children herself
C.needn' t worry about food for her children
D.can be free from family duties when she reaches sixty
According to the passage, truth
A.is often found by chance.
B.has little effect on people's life.
C.will never be changed since it is found.
D.may be changed as more and more information about the earth is gathered.
A.is very impressive by American standards
B.sounds too emotional by American standards
C.sounds too flowery and exaggerated by American standards
D.is very bad English by by American standards
Most problems【27】teenagers and their parents yield to (导致)【28】planning and decision making. Within ally particular family,【29】are avoided and problems are solved when all of the persons take【30】in the situation, and【31】in working it out.【32】parents and young people learn how to get【33】well with each other and develop skills in understanding and【34】understood, even【35】most difficult problems are relieved and a situation might appear that teenagers and their parents can some times see eye to eye.
(36)
A.is
B.should
C.will
D.are