Among the five Great Lakes, only （）is wholly within the Unit

共用题干
Influenza（流感）

Influenza has been with us a long time.According to some Greek writers_________(51)medical history,
the outbreak of 412 B.C.was of influenza. The same has been suggested of the sickness_________(52)swept
through the Greek army attacking Syracuse in 395 B.C.Influenza is a disease that moves most quickly among
people living in_________(53)conditions,hence,it is likely to attack armies.
__________(54)the nineteenth century there were five widespread outbreaks of influenza. The last of the
five________（55)in 1889 and marked the beginning of the story of influenza in our time.________(56)
the recent outbreak,it started in Asia.
For more than forty years before that outbreak,influenza had steadily_______(57)and was believed
to be dying out.A new group of outbreaks was_________(58)by the great outbreak of 1889-1890 and for the
next quarter of a century influenza remained a constant threat.
In April 1918 influenza broke out among American troops stationed in France.It quickly spread through
all the___________(59)but caused relatively few deaths.Four months later,however,a second outbreak started
which__________(60)to be a killer. It killed not only the old and already sick but also healthy young adults.
It________(61)through every country in the world,only a few distant islands in the South Atlantic and the
Pacific remaining_________(62).It brought the life of whole countries to stop,food_________(63)stopped
and work loss was very great.Before the great outbreak ended,it had killed at_______(64)15 million
people.Thereafter,there have been several great outbreaks throughout the world.It is thus__________(65)
that influenza is a terrible infection that we have to pay more attention to.

_________(51)
A:on
B:by
C:to
D:with

Maine is justly famous for its beautiful lakes and ponds.

A:only
B:rightfully
C:legally
D:simply

共用题干
Influenza（流感）

Influenza has been with us a long time.According to some Greek writers_________(51)medical history,
the outbreak of 412 B.C.was of influenza. The same has been suggested of the sickness_________(52)swept
through the Greek army attacking Syracuse in 395 B.C.Influenza is a disease that moves most quickly among
people living in_________(53)conditions,hence,it is likely to attack armies.
__________(54)the nineteenth century there were five widespread outbreaks of influenza. The last of the
five________（55)in 1889 and marked the beginning of the story of influenza in our time.________(56)
the recent outbreak,it started in Asia.
For more than forty years before that outbreak,influenza had steadily_______(57)and was believed
to be dying out.A new group of outbreaks was_________(58)by the great outbreak of 1889-1890 and for the
next quarter of a century influenza remained a constant threat.
In April 1918 influenza broke out among American troops stationed in France.It quickly spread through
all the___________(59)but caused relatively few deaths.Four months later,however,a second outbreak started
which__________(60)to be a killer. It killed not only the old and already sick but also healthy young adults.
It________(61)through every country in the world,only a few distant islands in the South Atlantic and the
Pacific remaining_________(62).It brought the life of whole countries to stop,food_________(63)stopped
and work loss was very great.Before the great outbreak ended,it had killed at_______(64)15 million
people.Thereafter,there have been several great outbreaks throughout the world.It is thus__________(65)
that influenza is a terrible infection that we have to pay more attention to.

_________(60)
A:ceased
B:proved
C:wanted
D:failed

When the glaciers（ ）after the last ice age,the five Great Lakes of North America were formed.

A.advanced
B.evaporated
C.thawed
D.exploded

A) on B) among C) within D) in